diff options
| author | rpj <rpj> | 2001-07-01 13:23:10 +0000 |
|---|---|---|
| committer | rpj <rpj> | 2001-07-01 13:23:10 +0000 |
| commit | a311086d622d3c778e1da57cfae167c0ab1c0fb4 (patch) | |
| tree | 760a76a351c18331ff92239366804bd4b866dea6 | |
| parent | 528fccade9ca5f90db376e08b2cb85b3fc822a45 (diff) | |
2001-06-25 Ross Johnson <rpj@setup1.ise.canberra.edu.au>
* create.c (pthread_create): Add priority inheritance
attributes.
* mutex.c (pthread_mutex_lock): Remove some overhead for
PTHREAD_MUTEX_NORMAL mutex types. Specifically, avoid
calling pthread_self() and pthread_equal() to check/set
the mutex owner. Introduce a new pseudo owner for this
type. Test results suggest increases in speed of up to
90% for non-blocking locks.
This is the default type of mutex used internally by other
synchronising objects, ie. condition variables and
read-write locks. The test rwlock7.c shows about a
30-35% speed increase over snapshot 2001-06-06. The
price of this is that the application developer
must ensure correct behaviour, or explicitly set the
mutex to a safer type such as PTHREAD_MUTEX_ERRORCHECK.
For example, PTHREAD_MUTEX_NORMAL (or PTHREAD_MUTEX_DEFAULT)
type mutexes will not return an error if a thread which is not
the owner calls pthread_mutex_unlock. The call will succeed
in unlocking the mutex if it is currently locked, but a
subsequent unlock by the true owner will then fail with EPERM.
This is however consistent with some other implementations.
(pthread_mutex_unlock): Likewise.
(pthread_mutex_trylock): Likewise.
(pthread_mutex_destroy): Likewise.
* attr.c (pthread_attr_init): PTHREAD_EXPLICIT_SCHED is the
default inheritance attribute; THREAD_PRIORITY_NORMAL is
the default priority for new threads.
* sched.c (pthread_attr_setschedpolicy): Added routine.
(pthread_attr_getschedpolicy): Added routine.
(pthread_attr_setinheritsched): Added routine.
(pthread_attr_getinheritsched): Added routine.
* pthread.h (sched_rr_set_interval): Added as a macro;
returns -1 with errno set to ENOSYS.
2001-06-23 Ross Johnson <rpj@setup1.ise.canberra.edu.au>
*sched.c (pthread_attr_setschedparam): Add priority range
check.
(sched_setscheduler): New function; checks for a valid
pid and policy; checks for permission to set information
in the target process; expects pid to be a Win32 process ID,
not a process handle; the only scheduler policy allowed is
SCHED_OTHER.
(sched_getscheduler): Likewise, but checks for permission
to query.
* pthread.h (SCHED_*): Moved to sched.h as defined in the
POSIX standard.
* sched.h (SCHED_*): Moved from pthread.h.
(pid_t): Defined if necessary.
(sched_setscheduler): Defined.
(sched_getscheduler): Defined.
* pthread.def (sched_setscheduler): Exported.
(sched_getscheduler): Likewise.
2001-06-23 Ross Johnson <rpj@setup1.ise.canberra.edu.au>
Contributed by - Ralf Brese <Ralf.Brese@pdb4.siemens.de>
* create.c (pthread_create): Set thread priority from
thread attributes.
| -rw-r--r-- | ANNOUNCE | 238 | ||||
| -rw-r--r-- | CONTRIBUTORS | 2 | ||||
| -rw-r--r-- | ChangeLog | 6347 | ||||
| -rw-r--r-- | Nmakefile | 2 | ||||
| -rw-r--r-- | Nmakefile.tests | 16 | ||||
| -rw-r--r-- | attr.c | 10 | ||||
| -rw-r--r-- | create.c | 80 | ||||
| -rw-r--r-- | implement.h | 13 | ||||
| -rw-r--r-- | mutex.c | 27 | ||||
| -rw-r--r-- | pthread.def | 15 | ||||
| -rw-r--r-- | pthread.h | 98 | ||||
| -rw-r--r-- | sched.c | 410 | ||||
| -rw-r--r-- | sched.h | 48 | ||||
| -rw-r--r-- | tests/ChangeLog | 1017 | ||||
| -rw-r--r-- | tests/GNUmakefile | 10 | ||||
| -rw-r--r-- | tests/Makefile | 9 | ||||
| -rw-r--r-- | tests/benchtest1.c | 117 | ||||
| -rw-r--r-- | tests/benchtest2.c | 183 | ||||
| -rw-r--r-- | tests/cancel5.c | 354 | ||||
| -rw-r--r-- | tests/exception1.c | 462 | ||||
| -rw-r--r-- | tests/inherit1.c | 99 | ||||
| -rw-r--r-- | tests/mutex3.c | 3 | ||||
| -rw-r--r-- | tests/mutex4.c | 65 | ||||
| -rw-r--r-- | tests/mutex5.c | 18 | ||||
| -rw-r--r-- | tests/priority1.c | 78 | ||||
| -rw-r--r-- | tests/priority2.c | 80 |
26 files changed, 5521 insertions, 4280 deletions
@@ -1,4 +1,4 @@ - PTHREADS-WIN32 SNAPSHOT 2001-06-06
+ PTHREADS-WIN32 SNAPSHOT 2001-??-??
----------------------------------
Web Site: http://sources.redhat.com/pthreads-win32/
FTP Site: ftp://sources.redhat.com/pub/pthreads-win32
@@ -28,83 +28,148 @@ Change Summary (since the last snapshot) (See the ChangeLog file for details.)
-New:
-- Async cancellation should now work for Windows running
- on the following processors: IX86, MIPS, ALPHA, PPC.
- - contributors name misplaced (please contact me if it's you)
-
-- New functions (no-ops) for source code compatibility:
- pthread_getconcurrency()
- Returns the value previously set by
- pthread_setconcurrency(), or 0 (zero)
- if no value was previously set.
- The implementation does not currently use
- this value.
- pthread_setconcurrency()
- Accepts any value >= 0 but does not
- have any effect; returns '0', or
- EINVAL if the value is < 0
- pthread_attr_getscope()
- pthread_attr_setscope()
- Currently only return ENOSYS
-
-- The following mutex types and related functions are now
- supported:
-
- pthread_mutexattr_gettype()
- pthread_mutexattr_settype()
- pthread_mutexattr_setkind_np()
- pthread_mutexattr_getkind_np()
- PTHREAD_MUTEX_DEFAULT
- PTHREAD_MUTEX_NORMAL or PTHREAD_MUTEX_FAST_NP
- PTHREAD_MUTEX_ERRORCHECK or PTHREAD_MUTEX_ERRORCHECK_NP
- PTHREAD_MUTEX_RECURSIVE or PTHREAD_MUTEX_RECURSIVE_NP
-
- The *_NP versions are for Linux portability.
-
- In this implementation PTHREAD_MUTEX_DEFAULT is
- mapped to PTHREAD_MUTEX_NORMAL for compatibility
- with major Unix vendors. This is also the default
- if no type is specified.
-
- Please note that the default behaviour in previous
- versions of the library was equivalent to
- PTHREAD_MUTEX_RECURSIVE. This will be a problem
- for some applications unless they are updated to
- explicitly set the type of any mutexes that are, or
- could be, locked recursively.
-
- PTHREAD_MUTEX_NORMAL will cause thread deadlock
- if the owner of a mutex tries to relock it without
- first unlocking it. It has slightly less overhead
- that other types.
- - Thomas Pfaff <tpfaff@gmx.net>
-
-- Pthreads-win32 mutexes are now based on Win32
- critical sections for all Windows versions. The
- implementation no longer depends on
- TryEnterCriticalSection.
- - Thomas Pfaff <tpfaff@gmx.net>
-
-- New implementation of condition variables which attempts to
- correct problems of spurious wakeups, unfairness, and
- broadcast deadlock. See README.CV for details of the
- discussion.
- - Alexander Terekhov <TEREKHOV@de.ibm.com>
- - Louis Thomas <lthomas@arbitrade.com>
-
-Bugs fixed:
-- Pthread_mutex_trylock() now properly returns EBUSY
- even when the current thread owns the mutex.
- Consequently, pthread_mutex_destroy() will no longer
- destroy a locked mutex (it will return EBUSY).
- - Thomas Pfaff <tpfaff@gmx.net>
-
-- Errno warnings and building with /MD;
- calling conventions (stdcall v cdecl);
- thread termination problems;
- - Milan Gardian <Milan.Gardian@LEIBINGER.com>
+-----------------------
+Additions to Scheduling
+-----------------------
+New routines:
+ pthread_attr_setinheritsched()
+ pthread_attr_getinheritsched()
+ pthread_attr_setschedpolicy()
+ pthread_attr_getschedpolicy()
+ sched_setscheduler()
+ sched_getscheduler()
+ sched_rr_get_interval()
+Now defined:
+ _POSIX_THREAD_PRIORITY_SCHEDULING
+
+These routines complete the set required for defining
+_POSIX_THREAD_PRIORITY_SCHEDULING.
+
+
+sched_setscheduler
+sched_getscheduler
+------------------
+These routines will require patching to work with UWIN
+or any other system that provides it's own pid_t.
+Pthread.h conditionally defines pid_t as a DWORD, which
+is the type returned by GetCurrentProcessId().
+
+The only supported policy is SCHED_OTHER, however, in
+order to provide semantic compatibility these routines
+verify the following:
+- that the process identified by pid exists;
+- that permission is granted to set or query the policy;
+The appropriate error is returned if either of these fail.
+On success, both routines return SCHED_OTHER.
+
+
+sched_rr_get_interval
+---------------------
+Always returns -1 and sets errno to ENOTSUP.
+
+
+pthread_attr_setschedpolicy
+pthread_attr_getschedpolicy
+---------------------------
+The only valid supported policy is SCHED_OTHER.
+Attempting to set other policies results in an ENOTSUP
+error.
+
+
+pthread_attr_setinheritsched
+pthread_attr_getinheritsched
+----------------------------
+The two possible values that can be set are
+PTHREAD_INHERIT_SCHED and PTHREAD_EXPLICIT_SCHED.
+
+Neither the POSIX standard nor the Single Unix Spec
+specifies which should be the default value.
+Consequently, implementations use different defaults,
+eg (from a scan of the web):
+
+PTHREAD_INHERIT_SCHED default:
+ HP, MKS Toolkit, QNX, AIX (?)
+
+PTHREAD_EXPLICIT_SCHED default:
+ IBM OS/400, Linux, Sun
+
+All Win32 threads are created with THREAD_PRIORITY_NORMAL.
+They do not inherit the priority of the parent thread or the
+process. This behaviour is equivalent to the following
+Pthreads defaults:
+
+ Inheritance: PTHREAD_EXPLICIT_SCHED
+ Priority: THREAD_PRIORITY_NORMAL
+
+These are also the defaults in pthreads-win32, and now
+reinforced by changes to the library which now actually
+use these values and routines. This choice maintains the
+notion that, from the Pthread point-of-view, Win32
+threads (those not created via pthread_create()) are
+treated as detached POSIX threads with default attribute
+values.
+
+
+------------------
+Changes to Mutexes
+------------------
+Snapshot-2001-06-06 included Thomas Pfaff's enhancements
+to the mutex routines to improve speed. The improvements
+are most apparent on Win9x class systems where pthreads-win32
+previously used Win32 mutexes rather than critical
+sections as the underlying mechanism. The enhancements
+also resulted in speed improvements in other primitives
+which use mutexes internally, such as condition variables
+and read-write locks. Thomas also added mutex
+types to the library as described in the Single Unix
+Specification documentation, and as provided with
+the majority of major Unix and Linux Pthreads
+implementations.
+
+Changes have been made to further improve the speed of the
+default PTHREAD_MUTEX_NORMAL type (and therefore also
+PTHREAD_MUTEX_DEFAULT which is equivalent in pthreads-win32).
+
+Specifically, the library no longer sets or checks the real
+mutex owner when locking, unlocking, trylocking, or
+destroying PTHREAD_MUTEX_NORMAL mutexes. This saves
+significant overhead and results in measured speed increases
+of around 90 percent for non-blocking lock operations, and a
+slight improvement for blocking lock operations. Since the
+type of mutex used internally is PTHREAD_MUTEX_DEFAULT, this
+also results in additional speed improvements to CVs and R/W
+lock operations. Subjective observation shows an
+improvement of approximately 30-35% in R/W locks
+(from tests/rwlock7.c). This is compared to the
+already improved snapshot-2001-06-06.
+
+The price paid for this improvement is that some checking
+for errors is not done for these mutex types. The onus
+is placed on the developer to check application code
+for logical errors, or use a safer mutex type such as
+PTHREAD_MUTEX_ERRORCHECK. For example, it is now
+possible for a non-owner thread to unlock or destroy
+a mutex of these types. However, because the owner
+is not simply left as NULL but set to a special anonymous
+owner value when locked and then reset to NULL when
+unlocked or destroyed, an error will ultimately eventuate
+when the owner thread subsequently attempts to unlock or
+destroy the mutex.
+
+These mutex changes appear to be consistent with both
+the behaviour exhibited by other implementations and their
+documentation, including the Open Group documentation.
+
+
+-------
+Bug fix
+-------
+Pthread_create now sets the priority of the new thread
+from the value set in the thread attribute.
+- from Ralf.Brese@pdb4.siemens.de.
+
+---------------------------
Known bugs in this snapshot
---------------------------
@@ -173,24 +238,22 @@ reliably. Level of standards conformance
------------------------------
-The following POSIX 1003.1c 1995 options are defined:
+The following POSIX 1003.1c 1995 and POSIX 1003.1b options are defined:
_POSIX_THREADS
_POSIX_THREAD_SAFE_FUNCTIONS
_POSIX_THREAD_ATTR_STACKSIZE
+ _POSIX_THREAD_PRIORITY_SCHEDULING
+ _POSIX_SEMAPHORES
The following POSIX 1003.1c 1995 options are not defined:
_POSIX_THREAD_ATTR_STACKADDR
- _POSIX_THREAD_PRIORITY_SCHEDULING
_POSIX_THREAD_PRIO_INHERIT
_POSIX_THREAD_PRIO_PROTECT
_POSIX_THREAD_PROCESS_SHARED
-The following POSIX 1003.1b option is defined:
-
- _POSIX_SEMAPHORES
The following functions are implemented:
@@ -291,6 +354,10 @@ The following functions are implemented: ---------------------------
pthread_attr_getschedparam
pthread_attr_setschedparam
+ pthread_attr_getinheritsched
+ pthread_attr_setinheritsched
+ pthread_attr_getschedpolicy (only supports SCHED_OTHER)
+ pthread_attr_setschedpolicy (only supports SCHED_OTHER)
pthread_getschedparam
pthread_setschedparam
pthread_getconcurrency
@@ -299,6 +366,9 @@ The following functions are implemented: pthread_attr_setscope (returns an error ENOSYS)
sched_get_priority_max (POSIX 1b)
sched_get_priority_min (POSIX 1b)
+ sched_rr_set_interval (POSIX 1b - returns an error ENOSYS)
+ sched_setscheduler (POSIX 1b - only supports SCHED_OTHER)
+ sched_getscheduler (POSIX 1b - only supports SCHED_OTHER)
sched_yield (POSIX 1b)
---------------------------
@@ -344,10 +414,6 @@ The following functions are not implemented: ---------------------------
RealTime Scheduling
---------------------------
- pthread_attr_getinheritsched
- pthread_attr_getschedpolicy
- pthread_attr_setinheritsched
- pthread_attr_setschedpolicy
pthread_mutex_getprioceiling
pthread_mutex_setprioceiling
pthread_mutex_attr_getprioceiling
diff --git a/CONTRIBUTORS b/CONTRIBUTORS index 74fe21b..91cdb73 100644 --- a/CONTRIBUTORS +++ b/CONTRIBUTORS @@ -32,3 +32,5 @@ Thomas Pfaff tpfaff@gmx.net Franco Bez franco.bez@gmx.de
Alexander Terekhov TEREKHOV@de.ibm.com
Louis Thomas lthomas@arbitrade.com
+David Korn dgk@research.att.com
+
@@ -1,3142 +1,3205 @@ -2001-06-18 Ross Johnson <rpj@setup1.ise.canberra.edu.au>
-
- * Made organisational-only changes to UWIN additions.
- * dll.c (dllMain): Moved UWIN process attach code
- to pthread_win32_process_attach_np(); moved
- instance of pthread_count to global.c.
- * global.c (pthread_count): Moved from dll.c.
- * nonportable.c (pthread_win32_process_attach_np):
- Moved _UWIN code to here from dll.c.
- * implement.h (pthread_count): Define extern int.
- * create.c (pthread_count): Remove extern int.
- * private.c (pthread_count): Likewise.
- * exit.c (pthread_count): Likewise.
-
-2001-06-18 Ross Johnson <rpj@setup1.ise.canberra.edu.au>
-
- Contributed by - David Korn <dgk@research.att.com>
-
- * dll.c: Added changes necessary to work with UWIN.
- * create.c: Likewise.
- * pthread.h: Likewise.
- * misc.c: Likewise.
- * exit.c: Likewise.
- * private.c: Likewise.
- * implement.h: Likewise.
- There is some room at the start of struct pthread_t_
- to implement the signal semantics in UWIN's posix.dll
- although this is not yet complete.
- * Nmakefile: Compatible with UWIN's Nmake utility.
- * Nmakefile.tests: Likewise - for running the tests.
-
-2001-06-08 Ross Johnson <rpj@setup1.ise.canberra.edu.au>
-
- * semaphore.h (sem_t): Fixed for compile and test.
- * implement.h (sem_t_): Likewise.
- * semaphore.c: Likewise.
- * private.c (ptw32_sem_timedwait): Updated to use new
- opaque sem_t.
-
-2001-06-06 Ross Johnson <rpj@setup1.ise.canberra.edu.au>
-
- * semaphore.h (sem_t): Is now an opaque pointer;
- moved actual definition to implement.h.
- * implement.h (sem_t_): Move here from semaphore.h;
- was the definition of sem_t.
- * semaphore.c: Wherever necessary, changed use of sem
- from that of a pointer to a pointer-pointer; added
- extra checks for a valid sem_t; NULL sem_t when
- it is destroyed; added extra checks when creating
- and destroying sem_t elements in the NEED_SEM
- code branches; changed from using a pthread_mutex_t
- ((*sem)->mutex) to CRITICAL_SECTION ((*sem)->sem_lock_cs)
- in NEED_SEM branches for access serialisation.
-
-2001-06-06 Ross Johnson <rpj@setup1.ise.canberra.edu.au>
-
- * mutex.c (pthread_mutexattr_init): Remove
- ptw32_mutex_default_kind.
-
-2001-06-05 Ross Johnson <rpj@setup1.ise.canberra.edu.au>
-
- * nonportable.c (pthread_mutex_setdefaultkind_np):
- Remove - should not have been included in the first place.
- (pthread_mutex_getdefaultkind_np): Likewise.
- * global.c (ptw32_mutex_default_kind): Likewise.
- * mutex.c (pthread_mutex_init): Remove use of
- ptw32_mutex_default_kind.
- * pthread.h (pthread_mutex_setdefaultkind_np): Likewise.
- (pthread_mutex_getdefaultkind_np): Likewise.
- * pthread.def (pthread_mutexattr_setkind_np): Added.
- (pthread_mutexattr_getkind_np): Likewise.
-
- * README: Many changes that should have gone in before
- the last snapshot.
- * README.NONPORTABLE: New - referred to by ANNOUNCE
- but never created; documents the non-portable routines
- included in the library - moved from README with new
- routines added.
- * ANNOUNCE (pthread_mutexattr_setkind_np): Added to
- compliance list.
- (pthread_mutexattr_getkind_np): Likewise.
-
-2001-06-04 Ross Johnson <rpj@setup1.ise.canberra.edu.au>
-
- * condvar.c: Add original description of the algorithm as
- developed by Terekhov and Thomas, plus reference to
- README.CV.
-
-2001-06-03 Ross Johnson <rpj@setup1.ise.canberra.edu.au>
-
- Contributed by - Alexander Terekhov <TEREKHOV@de.ibm.com>
- - Louis Thomas <lthomas@arbitrade.com>
-
- * condvar.c (pthread_cond_init): Completely revamped.
- (pthread_cond_destroy): Likewise.
- (ptw32_cond_wait_cleanup): Likewise.
- (ptw32_cond_timedwait): Likewise.
- (ptw32_cond_unblock): New general signaling routine.
- (pthread_cond_signal): Now calls ptw32_cond_unblock.
- (pthread_cond_broadcast): Likewise.
- * implement.h (pthread_cond_t_): Revamped.
- * README.CV: New; explanation of the above changes.
-
-2001-05-30 Ross Johnson <rpj@setup1.ise.canberra.edu.au>
-
- * pthread.h (rand_r): Fake using _seed argument to quell
- compiler warning (compiler should optimise this away later).
-
- * GNUmakefile (OPT): Leave symbolic information out of the library
- and increase optimisation level - for smaller faster prebuilt
- dlls.
-
-2001-05-29 Ross Johnson <rpj@setup1.ise.canberra.edu.au>
-
- Contributed by - Milan Gardian <Milan.Gardian@LEIBINGER.com>
-
- * Makefile: fix typo.
- * pthreads.h: Fix problems with stdcall/cdecl conventions, in particular
- remove the need for PT_STDCALL everywhere; remove warning supression.
- * (errno): Fix the longstanding "inconsistent dll linkage" problem
- with errno; now also works with /MD debugging libs -
- warnings emerged when compiling pthreads library with /MD (or /MDd)
- compiler switch, instead of /MT (or /MTd) (i.e. when compiling pthreads
- using Multithreaded DLL CRT instead of Multithreaded statically linked
- CRT).
- * create.c (pthread_create): Likewise; fix typo.
- * private.c (ptw32_threadStart): Eliminate use of terminate() which doesn't
- throw exceptions.
- * Remove unnecessary #includes from a number of modules -
- [I had to #include malloc.h in implement.h for gcc - rpj].
-
-2001-05-29 Ross Johnson <rpj@setup1.ise.canberra.edu.au>
-
- Contributed by - Thomas Pfaff <tpfaff@gmx.net>
-
- * pthread.h (PTHREAD_MUTEX_DEFAULT): New; equivalent to
- PTHREAD_MUTEX_DEFAULT_NP.
- * (PTHREAD_MUTEX_NORMAL): Similarly.
- * (PTHREAD_MUTEX_ERRORCHECK): Similarly.
- * (PTHREAD_MUTEX_RECURSIVE): Similarly.
- * (pthread_mutex_setdefaultkind_np): New; Linux compatibility stub
- for pthread_mutexattr_settype.
- * (pthread_mutexattr_getkind_np): New; Linux compatibility stub
- for pthread_mutexattr_gettype.
- * mutex.c (pthread_mutexattr_settype): New; allow
- the following types of mutex:
- PTHREAD_MUTEX_DEFAULT_NP
- PTHREAD_MUTEX_NORMAL_NP
- PTHREAD_MUTEX_ERRORCHECK_NP
- PTHREAD_MUTEX_RECURSIVE_NP
- * Note that PTHREAD_MUTEX_DEFAULT is equivalent to
- PTHREAD_MUTEX_NORMAL - ie. mutexes should no longer
- be recursive by default, and a thread will deadlock if it
- tries to relock a mutex it already owns. This is inline with
- other pthreads implementations.
- * (pthread_mutex_lock): Process the lock request
- according to the mutex type.
- * (pthread_mutex_init): Eliminate use of Win32 mutexes as the
- basis of POSIX mutexes - instead, a combination of one critical section
- and one semaphore are used in conjunction with Win32 Interlocked* routines.
- * (pthread_mutex_destroy): Likewise.
- * (pthread_mutex_lock): Likewise.
- * (pthread_mutex_trylock): Likewise.
- * (pthread_mutex_unlock): Likewise.
- * Use longjmp/setjmp to implement cancelation when building the library
- using a C compiler which doesn't support exceptions, e.g. gcc -x c (note
- that gcc -x c++ uses exceptions).
- * Also fixed some of the same typos and eliminated PT_STDCALL as
- Milan Gardian's patches above.
-
-2001-02-07 Ross Johnson <rpj@special.ise.canberra.edu.au>
-
- Contributed by - Alexander Terekhov <TEREKHOV@de.ibm.com>
-
- * rwlock.c: Revamped.
- * implement.h (pthread_rwlock_t_): Redefined.
- This implementation does not have reader/writer starvation problem.
- Rwlock attempts to behave more like a normal mutex with
- races and scheduling policy determining who is more important;
- It also supports recursive locking,
- has less synchronization overhead (no broadcasts at all,
- readers are not blocked on any condition variable) and seem to
- be faster than the current implementation [W98 appears to be
- approximately 15 percent faster at least - on top of speed increase
- from Thomas Pfaff's changes to mutex.c - rpj].
-
-2000-12-29 Ross Johnson <rpj@special.ise.canberra.edu.au>
-
- * Makefile: Back-out "for" loops which don't work.
-
- * GNUmakefile: Remove the fake.a target; add the "realclean"
- target; don't remove built libs under the "clean" target.
-
- * config.h: Add a guard against multiple inclusion.
-
- * semaphore.h: Add some defines from config.h to make
- semaphore.h independent of config.h when building apps.
-
- * pthread.h (_errno): Back-out previous fix until we know how to
- fix it properly.
-
- * implement.h (lockCount): Add missing element to pthread_mutex_t_.
-
- * sync.c (pthread_join): Spelling fix in comment.
-
- * private.c (ptw32_threadStart): Reset original termination
- function (C++).
- (ptw32_threadStart): Cleanup detached threads early in case
- the library is statically linked.
- (ptw32_callUserDestroyRoutines): Remove [SEH] __try block from
- destructor call so that unhandled exceptions will be passed through
- to the system; call terminate() from [C++] try block for the same
- reason.
-
- * tsd.c (pthread_getspecific): Add comment.
-
- * mutex.c (pthread_mutex_init): Initialise new elements in
- pthread_mutex_t.
- (pthread_mutex_unlock): Invert "pthread_equal()" test.
-
-2000-12-28 Ross Johnson <rpj@special.ise.canberra.edu.au>
-
- * semaphore.c (mode_t): Use ifndef HAVE_MODE_T to include definition.
-
- * config.h.in (HAVE_MODE_T): Added.
- (_UWIN): Start adding defines for the UWIN package.
-
- * private.c (ptw32_threadStart): Unhandled exceptions are
- now passed through to the system to deal with. This is consistent
- with normal Windows behaviour. C++ applications may use
- set_terminate() to override the default behaviour which is
- to call ptw32_terminate(). Ptw32_terminate() cleans up some
- POSIX thread stuff before calling the system default function
- which calls abort(). The users termination function should conform
- to standard C++ semantics which is to not return. It should
- exit the thread (call pthread_exit()) or exit the application.
- * private.c (ptw32_terminate): Added as the default set_terminate()
- function. It calls the system default function after cleaning up
- some POSIX thread stuff.
-
- * implement.h (ptw32_try_enter_critical_section): Move
- declaration.
- * global.c (ptw32_try_enter_critical_section): Moved
- from dll.c.
- * dll.c: Move process and thread attach/detach code into
- functions in nonportable.c.
- * nonportable.c (pthread_win32_process_attach_np): Process
- attach code from dll.c is now available to static linked
- applications.
- * nonportable.c (pthread_win32_process_detach_np): Likewise.
- * nonportable.c (pthread_win32_thread_attach_np): Likewise.
- * nonportable.c (pthread_win32_thread_detach_np): Likewise.
-
- * pthread.h: Add new non-portable prototypes for static
- linked applications.
-
- * GNUmakefile (OPT): Increase optimisation flag and remove
- debug info flag.
-
- * pthread.def: Add new non-portable exports for static
- linked applications.
-
-2000-12-11 Ross Johnson <rpj@special.ise.canberra.edu.au>
-
- * FAQ: Update Answer 6 re getting a fully working
- Mingw32 built library.
-
-2000-10-10 Ross Johnson <rpj@setup1.ise.canberra.edu.au>
-
- * misc.c (pthread_self): Restore Win32 "last error"
- cleared by TlsGetValue() call in
- pthread_getspecific()
- - "Steven Reddie" <smr@essemer.com.au>
-
-2000-09-20 Ross Johnson <rpj@setup1.ise.canberra.edu.au>
-
- * mutex.c (pthread_mutex_lock): Record the owner
- of the mutex. This requires also keeping count of
- recursive locks ourselves rather than leaving it
- to Win32 since we need to know when to NULL the
- thread owner when the mutex is unlocked.
- (pthread_mutex_trylock): Likewise.
- (pthread_mutex_unlock): Check that the calling
- thread owns the mutex, decrement the recursive
- lock count, and NULL the owner if zero. Return
- EPERM if the mutex is owned by another thread.
- * implement.h (pthread_mutex_t_): Add ownerThread
- and lockCount members.
- - reported by Arthur Kantor <akantor@bexusa.com>
-
-2000-09-13 Ross Johnson <rpj@setup1.ise.canberra.edu.au>
-
- * mutex.c (pthread_mutex_init): Call
- TryEnterCriticalSection through the pointer
- rather than directly so that the dll can load
- on Windows versions that can't resolve the
- function, eg. Windows 95
- - "Jef Gearhart" <jgearhart@tpssys.com>
-
-2000-09-09 Ross Johnson <rpj@special.ise.canberra.edu.au>
-
- * pthread.h (ctime_r): Fix arg.
-
-2000-09-08 Ross Johnson <rpj@special.ise.canberra.edu.au>
-
- * GNUmakefile(_WIN32_WINNT=0x400): Define in CFLAGS;
- doesn't seem to be needed though.
-
- * cancel.c (pthread_cancel): Must get "self" through
- calling pthread_self() which will ensure a POSIX thread
- struct is built for non-POSIX threads; return an error
- if this fails
- - Ollie Leahy <ollie@mpt.ie>
- (pthread_setcancelstate): Likewise.
- (pthread_setcanceltype): Likewise.
- * misc.c (ptw32_cancelable_wait): Likewise.
-
- * private.c (ptw32_tkAssocCreate): Remove unused #if 0
- wrapped code.
-
- * pthread.h (ptw32_get_exception_services_code):
- Needed to be forward declared unconditionally.
-
-2000-09-06 Ross Johnson <rpj@special.ise.canberra.edu.au>
-
- * cancel.c (pthread_cancel): If called from the main
- thread "self" would be NULL; get "self" via pthread_self()
- instead of directly from TLS so that an implicit
- pthread object is created.
-
- * misc.c (pthread_equal): Strengthen test for NULLs.
-
-2000-09-02 Ross Johnson <rpj@special.ise.canberra.edu.au>
-
- * condvar.c (ptw32_cond_wait_cleanup): Ensure that all
- waking threads check if they are the last, and notify
- the broadcaster if so - even if an error occurs in the
- waiter.
-
- * semaphore.c (_decrease_semaphore): Should be
- a call to ptw32_decrease_semaphore.
- (_increase_semaphore): Should be a call to
- ptw32_increase_semaphore.
-
- * misc.c (ptw32_cancelable_wait): Renamed from
- CancelableWait.
- * rwlock.c (_rwlock_check*): Renamed to
- ptw32_rwlock_check*.
- * mutex.c (_mutex_check*): Renamed to ptw32_mutex_check*.
- * condvar.c (cond_timed*): Renamed to ptw32_cond_timed*.
- (_cond_check*): Renamed to ptw32_cond_check*.
- (cond_wait_cleanup*): Rename to ptw32_cond_wait_cleanup*.
- (ptw32_cond_timedwait): Add comments.
-
-2000-08-22 Ross Johnson <rpj@setup1.ise.canberra.edu.au>
-
- * private.c (ptw32_throw): Fix exception test;
- move exceptionInformation declaration.
-
- * tsd.c (pthread_key_create): newkey wrongly declared.
-
- * pthread.h: Fix comment block.
-
-2000-08-18 Ross Johnson <rpj@setup1.ise.canberra.edu.au>
-
- * mutex.c (pthread_mutex_destroy): Check that the mutex isn't
- held; invalidate the mutex as early as possible to avoid
- contention; not perfect - FIXME!
-
- * rwlock.c (pthread_rwlock_init): Remove redundant assignment
- to "rw".
- (pthread_rwlock_destroy): Invalidate the rwlock before
- freeing up any of it's resources - to avoid contention.
-
- * private.c (ptw32_tkAssocCreate): Change assoc->lock
- to use a dynamically initialised mutex - only consumes
- a W32 mutex or critical section when first used,
- not before.
-
- * mutex.c (pthread_mutex_init): Remove redundant assignment
- to "mx".
- (pthread_mutexattr_destroy): Set attribute to NULL
- before freeing it's memory - to avoid contention.
-
- * implement.h (PTW32_EPS_CANCEL/PTW32_EPS_EXIT):
- Must be defined for all compilers - used as generic
- exception selectors by ptw32_throw().
-
- * Several: Fix typos from scripted edit session
- yesterday.
-
- * nonportable.c (pthread_mutexattr_setforcecs_np):
- Moved this function from mutex.c.
- (pthread_getw32threadhandle_np): New function to
- return the win32 thread handle that the POSIX
- thread is using.
- * mutex.c (pthread_mutexattr_setforcecs_np):
- Moved to new file "nonportable.c".
-
- * pthread.h (PTW32_BUILD): Only redefine __except
- and catch compiler keywords if we aren't building
- the library (ie. PTW32_BUILD is not defined) -
- this is safer than defining and then undefining
- if not building the library.
- * implement.h: Remove __except and catch undefines.
- * Makefile (CFLAGS): Define PTW32_BUILD.
- * GNUmakefile (CFLAGS): Define PTW32_BUILD.
-
- * All appropriate: Change Pthread_exception* to
- ptw32_exception* to be consistent with internal
- identifier naming.
-
- * private.c (ptw32_throw): New function to provide
- a generic exception throw for all internal
- exceptions and EH schemes.
- (ptw32_threadStart): pthread_exit() value is now
- returned via the thread structure exitStatus
- element.
- * exit.c (pthread_exit): pthread_exit() value is now
- returned via the thread structure exitStatus
- element.
- * cancel.c (ptw32_cancel_self): Now uses ptw32_throw.
- (pthread_setcancelstate): Ditto.
- (pthread_setcanceltype): Ditto.
- (pthread_testcancel): Ditto.
- (pthread_cancel): Ditto.
- * misc.c (CancelableWait): Ditto.
- * exit.c (pthread_exit): Ditto.
- * All applicable: Change PTW32_ prefix to
- PTW32_ prefix to remove leading underscores
- from private library identifiers.
-
-2000-08-17 Ross Johnson <rpj@special.ise.canberra.edu.au>
-
- * All applicable: Change _pthread_ prefix to
- ptw32_ prefix to remove leading underscores
- from private library identifiers (single
- and double leading underscores are reserved in the
- ANSI C standard for compiler implementations).
-
- * tsd.c (pthread_create_key): Initialise temporary
- key before returning it's address to avoid race
- conditions.
-
-2000-08-13 Ross Johnson <rpj@special.ise.canberra.edu.au>
-
- * errno.c: Add _MD precompile condition; thus far
- had no effect when using /MD compile option but I
- thnk it should be there.
-
- * exit.c: Add __cplusplus to various #if lines;
- was compiling SEH code even when VC++ had
- C++ compile options.
-
- * private.c: ditto.
-
- * create.c (pthread_create): Add PT_STDCALL macro to
- function pointer arg in _beginthread().
-
- * pthread.h: PT_STDCALL really does need to be defined
- in both this and impliment.h; don't set it to __cdecl
- - this macro is only used to extend function pointer
- casting for functions that will be passed as parameters.
- (~PThreadCleanup): add cast and group expression.
- (_errno): Add _MD compile conditional.
- (PtW32NoCatchWarn): Change pragma message.
-
- * implement.h: Move and change PT_STDCALL define.
-
- * need_errno.h: Add _MD to compilation conditional.
-
- * GNUmakefile: Substantial rewrite for new naming
- convention; set for nil optimisation (turn it up
- when we have a working library build; add target
- "fake.a" to build a libpthreadw32.a from the VC++
- built DLL pthreadVCE.dll.
-
- * pthread.def (LIBRARY): Don't specify in the .def
- file - it is specified on the linker command line
- since we now use the same .def file for variously
- named .dlls.
-
- * Makefile: Substantial rewrite for new naming
- convention; default nmake target only issues a
- help message; run nmake with specific target
- corresponding to the EH scheme being used.
-
- * README: Update information; add naming convention
- explanation.
-
- * ANNOUNCE: Update information.
-
-2000-08-12 Ross Johnson <rpj@special.ise.canberra.edu.au>
-
- * pthread.h: Add compile-time message when using
- MSC_VER compiler and C++ EH to warn application
- programmers to use PtW32Catch instead of catch(...)
- if they want cancelation and pthread_exit to work.
-
- * implement.h: Remove #include <semaphore.h>; we
- use our own local semaphore.h.
-
-2000-08-10 Ross Johnson <rpj@special.ise.canberra.edu.au>
-
- * cleanup.c (pthread_pop_cleanup): Remove _pthread
- prefix from __except and catch keywords; implement.h
- now simply undefines ptw32__except and
- ptw32_catch if defined; VC++ was not textually
- substituting ptw32_catch etc back to catch as
- it was redefined; the reason for using the prefixed
- version was to make it clear that it was not using
- the pthread.h redefined catch keyword.
-
- * private.c (ptw32_threadStart): Ditto.
- (ptw32_callUserDestroyRoutines): Ditto.
-
- * implement.h (ptw32__except): Remove #define.
- (ptw32_catch): Remove #define.
-
- * GNUmakefile (pthread.a): New target to build
- libpthread32.a from pthread.dll using dlltool.
-
- * buildlib.bat: Duplicate cl commands with args to
- build C++ EH version of pthread.dll; use of .bat
- files is redundant now that nmake compatible
- Makefile is included; used as a kludge only now.
-
- * Makefile: Localise some macros and fix up the clean:
- target to extend it and work properly.
-
- * CONTRIBUTORS: Add contributors.
-
- * ANNOUNCE: Updated.
-
- * README: Updated.
-
-2000-08-06 Ross Johnson <rpj@special.ise.canberra.edu.au>
-
- * pthread.h: Remove #warning - VC++ doesn't accept it.
-
-2000-08-05 Ross Johnson <rpj@special.ise.canberra.edu.au>
-
- * pthread.h (PtW32CatchAll): Add macro. When compiling
- applications using VC++ with C++ EH rather than SEH
- 'PtW32CatchAll' must be used in place of any 'catch( ... )'
- if the application wants pthread cancelation or
- pthread_exit() to work.
-
-2000-08-03 Ross Johnson <rpj@special.ise.canberra.edu.au>
-
- * pthread.h: Add a base class ptw32_exception for
- library internal exceptions and change the "catch"
- re-define macro to use it.
-
-2000-08-02 Ross Johnson <rpj@special.ise.canberra.edu.au>
-
- * GNUmakefile (CFLAGS): Add -mthreads.
- Add new targets to generate cpp and asm output.
-
- * sync.c (pthread_join): Remove dead code.
-
-2000-07-25 Ross Johnson <rpj@special.ise.canberra.edu.au>
-
- * sched.c (sched_get_priority_max): Handle different WinCE and
- Win32 priority values together.
- (sched_get_priority_min): Ditto.
- - Tristan Savatier <tristan@mpegtv.com>
-
- * create.c (pthread_create): Force new threads to wait until
- pthread_create has the new thread's handle; we also retain
- a local copy of the handle for internal use until
- pthread_create returns.
-
- * private.c (ptw32_threadStart): Initialise ei[].
- (ptw32_threadStart): When beginthread is used to start the
- thread, force waiting until the creator thread had the
- thread handle.
-
- * cancel.c (ptw32_cancel_thread): Include context switch
- code for defined(_X86_) environments in addition to _M_IX86.
-
- * rwlock.c (pthread_rwlock_destroy): Assignment changed
- to avoid compiler warning.
-
- * private.c (ptw32_get_exception_services_code): Cast
- NULL return value to avoid compiler warning.
-
- * cleanup.c (pthread_pop_cleanup): Initialise "cleanup" variable
- to avoid compiler warnings.
-
- * misc.c (ptw32_new): Change "new" variable to "t" to avoid
- confusion with the C++ keyword of the same name.
-
- * condvar.c (cond_wait_cleanup): Initialise lastWaiter variable.
- (cond_timedwait): Remove unused local variables. to avoid
- compiler warnings.
-
- * dll.c (dllMain): Remove 2000-07-21 change - problem
- appears to be in pthread_create().
-
-2000-07-22 Ross Johnson <rpj@special.ise.canberra.edu.au>
-
- * tsd.c (pthread_key_create): If a destructor was given
- and the pthread_mutex_init failed, then would try to
- reference a NULL pointer (*key); eliminate this section of
- code by using a dynamically initialised mutex
- (PTHREAD_MUTEX_INITIALIZER).
-
- * tsd.c (pthread_setspecific): Return an error if
- unable to set the value; simplify cryptic conditional.
-
- * tsd.c (pthread_key_delete): Locking threadsLock relied
- on mutex_lock returning an error if the key has no destructor.
- ThreadsLock is only initialised if the key has a destructor.
- Making this mutex a static could reduce the number of mutexes
- used by an application since it is actually created only at
- first use and it's often destroyed soon after.
-
-2000-07-22 Ross Johnson <rpj@special.ise.canberra.edu.au>
-
- * FAQ: Added Q5 and Q6.
-
-2000-07-21 Ross Johnson <rpj@setup1.ise.canberra.edu.au>
-
- * create.c (pthread_create): Set threadH to 0 (zero)
- everywhere. Some assignments were using NULL. Maybe
- it should be NULL everywhere - need to check. (I know
- they are nearly always the same thing - but not by
- definition.)
-
- * dll.c: Include resource leakage work-around. This is a
- partial FIXME which doesn't stop all leakage. The real
- problem needs to be found and fixed.
- - "David Baggett" <dmb@itasoftware.com>
-
- * misc.c (pthread_self): Try to catch NULL thread handles
- at the point where they might be generated, even though
- they should always be valid at this point.
-
- * tsd.c (pthread_setspecific): return an error value if
- pthread_self() returns NULL.
-
- * sync.c (pthread_join): return an error value if
- pthread_self() returns NULL.
-
- * signal.c (pthread_sigmask): return an error value if
- pthread_self() returns NULL.
-
-2000-03-02 Ross Johnson <rpj@special.ise.canberra.edu.au>
-
- * attr.c (pthread_attr_init): Set default stacksize to zero (0)
- rather than PTHREAD_STACK_MIN even though these are now the same.
-
- * pthread.h (PTHREAD_STACK_MIN): Lowered to 0.
-
-2000-01-28 Ross Johnson <rpj@special.ise.canberra.edu.au>
-
- * mutex.c (pthread_mutex_init): Free mutex if it has been alloced;
- if critical sections can be used instead of Win32 mutexes, test
- that the critical section works and return an error if not.
-
-2000-01-07 Ross Johnson <rpj@special.ise.canberra.edu.au>
-
- * cleanup.c (pthread_pop_cleanup): Include SEH code only if MSC is not
- compiling as C++.
- (pthread_push_cleanup): Include SEH code only if MSC is not
- compiling as C++.
-
- * pthread.h: Include SEH code only if MSC is not
- compiling as C++.
-
- * implement.h: Include SEH code only if MSC is not
- compiling as C++.
-
- * cancel.c (ptw32_cancel_thread): Add _M_IX86 check.
- (pthread_testcancel): Include SEH code only if MSC is not
- compiling as C++.
- (ptw32_cancel_self): Include SEH code only if MSC is not
- compiling as C++.
-
-2000-01-06 Ross Johnson <rpj@special.ise.canberra.edu.au>
-
- * Makefile: Remove inconsistencies in 'cl' args
- - Erik Hensema <erik.hensema@group2000.nl>
-
-2000-01-04 Ross Johnson <rpj@special.ise.canberra.edu.au>
-
- * private.c (ptw32_get_exception_services_code): New; returns
- value of EXCEPTION_PTW32_SERVICES.
- (ptw32_processInitialize): Remove initialisation of
- ptw32_exception_services which is no longer needed.
-
- * pthread.h (ptw32_exception_services): Remove extern.
- (ptw32_get_exception_services_code): Add function prototype;
- use this to return EXCEPTION_PTW32_SERVICES value instead of
- using the ptw32_exception_services variable which I had
- trouble exporting through pthread.def.
-
- * global.c (ptw32_exception_services): Remove declaration.
-
-1999-11-22 Ross Johnson <rpj@special.ise.canberra.edu.au>
-
- * implement.h: Forward declare ptw32_new();
-
- * misc.c (ptw32_new): New; alloc and initialise a new pthread_t.
- (pthread_self): New thread struct is generated by new routine
- ptw32_new().
-
- * create.c (pthread_create): New thread struct is generated
- by new routine ptw32_new().
-
-1999-11-21 Ross Johnson <rpj@special.ise.canberra.edu.au>
-
- * global.c (ptw32_exception_services): Declare new variable.
-
- * private.c (ptw32_threadStart): Destroy thread's
- cancelLock mutex; make 'catch' and '__except' usageimmune to
- redfinitions in pthread.h.
- (ptw32_processInitialize): Init new constant ptw32_exception_services.
-
- * create.c (pthread_create): Initialise thread's cancelLock
- mutex.
-
- * cleanup.c (pthread_pop_cleanup): Make 'catch' and '__except'
- usage immune to redfinition s in pthread.h.
-
- * private.c: Ditto.
-
- * pthread.h (catch): Redefine 'catch' so that C++ applications
- won't catch our internal exceptions.
- (__except): ditto for __except.
-
- * implement.h (ptw32_catch): Define internal version
- of 'catch' because 'catch' is redefined by pthread.h.
- (__except): ditto for __except.
- (struct pthread_t_): Add cancelLock mutex for async cancel
- safety.
-
- * cancel.c (ptw32_cancel_self): New; part of the async
- cancellation implementation.
- (ptw32_cancel_thread): Ditto; this function is X86
- processor specific.
- (pthread_setcancelstate): Add check for pending async
- cancel request and cancel the calling thread if
- required; add async-cancel safety lock.
- (pthread_setcanceltype): Ditto.
- - Jason Nye <jnye@nbnet.nb.ca>
- - Erik Hensema <erik.hensema@group2000.nl>
-
-1999-11-13 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * configure.in (AC_OUTPUT): Put generated output into GNUmakefile
- rather than Makefile. Makefile will become the MSC nmake compatible
- version
- - Erik Hensema <erik.hensema@group2000.nl>
-
- * misc.c (pthread_self): Add a note about GetCurrentThread
- returning a pseudo-handle
- - John Bossom (John.Bossom@cognos.com>
-
-1999-11-10 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * dll.c (dllMain): Free kernel32 ASAP.
- If TryEnterCriticalSection is not being used, then free
- the kernel32.dll handle now, rather than leaving it until
- DLL_PROCESS_DETACH.
-
- Note: this is not a pedantic exercise in freeing unused
- resources! It is a work-around for a bug in Windows 95
- (see microsoft knowledge base article, Q187684) which
- does Bad Things when FreeLibrary is called within
- the DLL_PROCESS_DETACH code, in certain situations.
- Since w95 just happens to be a platform which does not
- provide TryEnterCriticalSection, the bug will be
- effortlessly avoided.
- - Todd Owen <towen@lucidcalm.dropbear.id.au>
-
- * sync.c (pthread_join): Make it a deferred cancelation point.
-
- * misc.c (pthread_self): Explicitly initialise implicitly
- created thread state to default values.
-
-1999-11-05 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * pthread.h (winsock.h): Include unconditionally.
- (ETIMEDOUT): Change fallback value to that defined by winsock.h.
-
- * general: Patched for portability to WinCE. The details are
- described in the file WinCE-PORT. Follow the instructions
- in README.WinCE to make the appropriate changes in config.h.
- - Tristan Savatier <tristan@mpegtv.com>
-
-1999-10-30 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * create.c (pthread_create): Explicitly initialise thread state to
- default values.
-
- * cancel.c (pthread_setcancelstate): Check for NULL 'oldstate'
- for compatibility with Solaris pthreads;
- (pthread_setcanceltype): ditto:
- - Erik Hensema <erik.hensema@group2000.nl>
-
-1999-10-23 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * pthread.h (ctime_r): Fix incorrect argument "_tm"
- - Erik Hensema <erik.hensema@group2000.nl>
-
-1999-10-21 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * pthread.h (_POSIX_THREADS): Only define it if it isn't
- already defined. Projects may need to define this on
- the CC command line under Win32 as it doesn't have unistd.h
- - Aurelio Medina <aureliom@crt.com>
-
-1999-10-17 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * rwlock.c (pthread_rwlock_destroy): Add cast to remove compile
- warning.
-
- * condvar.c (pthread_cond_broadcast): Only release semaphores
- if there are waiting threads.
-
-1999-10-15 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * condvar.c (cond_wait_cleanup): New static cleanup handler for
- cond_timedwait;
- (cond_timedwait): pthread_cleanup_push args changed;
- canceling a thread while it's in pthread_cond_wait
- will now decrement the waiters count and cleanup if it's the
- last waiter.
- - Lorin Hochstein <lmh@xiphos.ca> and
- Peter Slacik <Peter.Slacik@tatramed.sk>;
- the last waiter will now reset the CV's wasBroadcast flag
- - Graham Dumpleton <Graham.Dumpleton@ra.pad.otc.telstra.com.au>.
-
-Thu Sep 16 1999 Ross Johnson <rpj@swan.canberra.edu.au>
-
- * rwlock.c (pthread_rwlock_destroy): Add serialisation.
- (_rwlock_check_need_init): Check for detroyed rwlock.
- * rwlock.c: Check return codes from _rwlock_check_need_init();
- modify comments; serialise access to rwlock objects during
- operations; rename rw_mutex to rw_lock.
- * implement.h: Rename rw_mutex to rw_lock.
- * mutex.c (pthread_mutex_destroy): Add serialisation.
- (_mutex_check_need_init): Check for detroyed mutex.
- * condvar.c (pthread_cond_destroy): Add serialisation.
- (_cond_check_need_init): Check for detroyed condvar.
- * mutex.c: Modify comments.
- * condvar.c: Modify comments.
-
-Sat Sep 10 12:56:13 1999 Ross Johnson <rpj@swan.canberra.edu.au>
-
- The following code for POSIX read/write locks was contributed
- by Aurelio Medina.
-
- * implement.h (pthread_rwlock_t_): Add.
- * pthread.h (pthread_rwlock_t): Add.
- (PTHREAD_RWLOCK_INITIALIZER): Add.
- Add rwlock function prototypes.
- * rwlock.c: New module.
- * pthread.def: Add new rwlock functions.
- * private.c (ptw32_processInitialize): initialise
- ptw32_rwlock_test_init_lock critical section.
- * global.c (ptw32_rwlock_test_init_lock): Add.
-
- * mutex.c (pthread_mutex_destroy): Don't free mutex memory
- if mutex is PTHREAD_MUTEX_INITIALIZER and has not been
- initialised yet.
-
-Wed Sep 8 12:56:13 1999 Ross Johnson <rpj@swan.canberra.edu.au>
-
- * mutex.c (pthread_mutex_destroy): Free mutex memory.
- - Milan Gardian <mg@tatramed.sk>
-
-1999-08-22 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * exit.c (pthread_exit): Fix reference to potentially
- uninitialised pointer.
-
-1999-08-21 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * private.c (ptw32_threadStart): Apply fix of 1999-08-19
- this time to C++ and non-trapped C versions. Ommitted to
- do this the first time through.
-
-1999-08-19 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * private.c (ptw32_threadStart): Return exit status from
- the application thread startup routine.
- - Milan Gardian <mg@tatramed.sk>
-
-1999-08-18 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * exit.c (pthread_exit): Put status into pthread_t->exitStatus
- - John Bossom <john.Bossom@cognos.com>
- * private.c (ptw32_threadStart): Set pthread->exitStatus
- on exit of try{} block.
- - John Bossom <john.Bossom@cognos.com>
- * sync.c (pthread_join): use pthread_exitStatus value if the
- thread exit doesn't return a value (for Mingw32 CRTDLL
- which uses endthread instead of _endthreadex).
- - John Bossom <john.Bossom@cognos.com>
-
-Tue Aug 17 20:17:58 CDT 1999 Mumit Khan <khan@xraylith.wisc.edu>
-
- * create.c (pthread_create): Add CRTDLL suppport.
- * exit.c (pthread_exit): Likewise.
- * private.c (ptw32_threadStart): Likewise.
- (ptw32_threadDestroy): Likewise.
- * sync.c (pthread_join): Likewise.
- * tests/join1.c (main): Warn about partial support for CRTDLL.
-
-Tue Aug 17 20:00:08 1999 Mumit Khan <khan@xraylith.wisc.edu>
-
- * Makefile.in (LD): Delete entry point.
- * acconfig.h (STDCALL): Delete unused macro.
- * configure.in: Remove test for STDCALL.
- * config.h.in: Regenerate.
- * errno.c (_errno): Fix self type.
- * pthread.h (PT_STDCALL): Move from here to
- * implement.h (PT_STDCALL): here.
- (ptw32_threadStart): Fix prototype.
- * private.c (ptw32_threadStart): Likewise.
-
-1999-08-14 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * exit.c (pthread_exit): Don't call pthread_self() but
- get thread handle directly from TSD for efficiency.
-
-1999-08-12 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * private.c (ptw32_threadStart): ei[] only declared if _MSC_VER.
-
- * exit.c (pthread_exit): Check for implicitly created threads
- to avoid raising an unhandled exception.
-
-1999-07-12 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * condvar.c (pthread_cond_destroy): Add critical section.
- (cond_timedwait): Add critical section; check for timeout
- waiting on semaphore.
- (pthread_cond_broadcast): Add critical section.
- - Peter Slacik <Peter.Slacik@tatramed.sk>
-
-1999-07-09 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- The following changes fix a bug identified by
- Lorin Hochstein <lmh@xiphos.ca> and solved by
- John Bossom <John.Bossom@Cognos.COM>.
-
- The problem was that cleanup handlers were not executed when
- pthread_exit() was called.
-
- * implement.h (pthread_t_): Add exceptionInformation element for
- C++ per-thread exception information.
- (general): Define and rename exceptions.
-
-
- * misc.c (CancelableWait): PTW32_EPS_CANCEL (SEH) and
- ptw32_exception_cancel (C++) used to identify the exception.
-
- * cancel.c (pthread_testcancel): PTW32_EPS_CANCEL (SEH) and
- ptw32_exception_cancel (C++) used to identify the exception.
-
- * exit.c (pthread_exit): throw/raise an exception to return to
- ptw32_threadStart() to exit the thread. PTW32_EPS_EXIT (SEH)
- and ptw32_exception_exit (C++) used to identify the exception.
-
- * private.c (ptw32_threadStart): Add pthread_exit exception trap;
- clean up and exit the thread directly rather than via pthread_exit().
-
-Sun May 30 00:25:02 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * semaphore.h (mode_t): Conditionally typedef it.
-
-Fri May 28 13:33:05 1999 Ross Johnson <rpj@swan.canberra.edu.au>
-
- * condvar.c (pthread_cond_broadcast): Fix possible memory fault
- - Mark E. Armstrong <avail@pacbell.net>
-
-Thu May 27 13:08:46 1999 Ross Johnson <rpj@swan.canberra.edu.au>
-
- * condvar.c (pthread_cond_broadcast): Fix logic bug
- - Peter Slacik <Peter.Slacik@tatramed.sk>;
- optimise sem_post loop
- - Bossom, John <John.Bossom@Cognos.COM>.
-
-Fri May 14 12:13:18 1999 Ross Johnson <rpj@swan.canberra.edu.au>
-
- * attr.c (pthread_attr_setdetachstate): Fix logic bug
- - Mike Russo <miker@eai.com>.
-
-Sat May 8 09:42:30 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * pthread.def (sem_open): Add.
- (sem_close): Add.
- (sem_unlink): Add.
- (sem_getvalue): Add.
-
- * FAQ (Question 3): Add.
-
-Thu Apr 8 01:16:23 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * semaphore.c (sem_open): New function; returns an error (ENOSYS).
- (sem_close): ditto.
- (sem_unlink): ditto.
- (sem_getvalue): ditto.
-
- * semaphore.h (_POSIX_SEMAPHORES): define.
-
-Wed Apr 7 14:09:52 1999 Ross Johnson <rpj@swan.canberra.edu.au>
-
- * errno.c (_REENTRANT || _MT): Invert condition.
-
- * pthread.h (_errno): Conditionally include prototype.
-
-Wed Apr 7 09:37:00 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * *.c (comments): Remove individual attributions - these are
- documented sufficiently elsewhere.
-
- * implement.h (pthread.h): Remove extraneous include.
-
-Sun Apr 4 11:05:57 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * sched.c (sched.h): Include.
-
- * sched.h: New file for POSIX 1b scheduling.
-
- * pthread.h: Move opaque structures to implement.h; move sched_*
- prototypes out and into sched.h.
-
- * implement.h: Add opaque structures from pthread.h.
-
- * sched.c (sched_yield): New function.
-
- * condvar.c (ptw32_sem_*): Rename to sem_*; except for
- ptw32_sem_timedwait which is an private function.
-
-Sat Apr 3 23:28:00 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * Makefile.in (OBJS): Add errno.o.
-
-Fri Apr 2 11:08:50 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * implement.h (ptw32_sem_*): Remove prototypes now defined in
- semaphore.h.
-
- * pthread.h (sempahore.h): Include.
-
- * semaphore.h: New file for POSIX 1b semaphores.
-
- * pthread.h (ptw32_sem_t): Change to sem_t.
-
- * semaphore.c (ptw32_sem_*): Change to sem_*; these functions
- will be exported from the library; set errno on error.
- - John Bossom <jebossom@cognos.com>
- (ptw32_sem_timedwait): Moved to private.c.
-
- * private.c (ptw32_sem_timedwait): Moved from semaphore.c;
- set errno on error.
-
- * errno.c (_errno): New file. New function.
- - John Bossom
-
- * pthread.h (pthread_t_): Add per-thread errno element.
-
-Fri Mar 26 14:11:45 1999 Ross Johnson <rpj@swan.canberra.edu.au>
-
- * semaphore.c (ptw32_sem_timedwait): Check for negative
- milliseconds.
- - Tor Lillqvist <tml@iki.fi>
-
-Wed Mar 24 11:32:07 1999 Ross Johnson <rpj@swan.canberra.edu.au>
-
- * misc.c (CancelableWait): Initialise exceptionInformation[2].
- (pthread_self): Get a real Win32 thread handle for implicit threads.
- - John Bossom <jebossom@cognos.com>
-
- * cancel.c (pthread_testcancel): Initialise exceptionInformation[2].
- - John Bossom <jebossom@cognos.com>
-
- * implement.h (SE_INFORMATION): Fix values.
- - John Bossom <jebossom@cognos.com>
-
- * private.c (ptw32_threadDestroy): Close the thread handle.
- - John Bossom <jebossom@cognos.com>
-
-Fri Mar 19 12:57:27 1999 Ross Johnson <rpj@swan.canberra.edu.au>
-
- * cancel.c (comments): Update and cleanup.
-
-Fri Mar 19 09:12:59 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * private.c (ptw32_threadStart): status returns PTHREAD_CANCELED.
-
- * pthread.h (PTHREAD_CANCELED): defined.
-
-Tue Mar 16 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * all: Add GNU LGPL and Copyright and Warranty.
-
-Mon Mar 15 00:20:13 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * condvar.c (pthread_cond_init): fix possible uninitialised use
- of cv.
-
-Sun Mar 14 21:01:59 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * condvar.c (pthread_cond_destroy): don't do full cleanup if
- static initialised cv has never been used.
- (cond_timedwait): check result of auto-initialisation.
-
-Thu Mar 11 09:01:48 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * pthread.h (pthread_mutex_t): revert to (pthread_mutex_t *);
- define a value to serve as PTHREAD_MUTEX_INITIALIZER.
- (pthread_mutex_t_): remove staticinit and valid elements.
- (pthread_cond_t): revert to (pthread_cond_t_ *);
- define a value to serve as PTHREAD_COND_INITIALIZER.
- (pthread_cond_t_): remove staticinit and valid elements.
-
- * mutex.c (pthread_mutex_t args): adjust indirection of references.
- (all functions): check for PTHREAD_MUTEX_INITIALIZER value;
- check for NULL (invalid).
-
- * condvar.c (pthread_cond_t args): adjust indirection of references.
- (all functions): check for PTHREAD_COND_INITIALIZER value;
- check for NULL (invalid).
-
-Wed Mar 10 17:18:12 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * misc.c (CancelableWait): Undo changes from Mar 8 and 7.
-
-Mon Mar 8 11:18:59 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * misc.c (CancelableWait): Ensure cancelEvent handle is the lowest
- indexed element in the handles array. Enhance test for abandoned
- objects.
-
- * pthread.h (PTHREAD_MUTEX_INITIALIZER): Trailing elements not
- initialised are set to zero by the compiler. This avoids the
- problem of initialising the opaque critical section element in it.
- (PTHREAD_COND_INITIALIZER): Ditto.
-
- * semaphore.c (ptw32_sem_timedwait): Check sem == NULL earlier.
-
-Sun Mar 7 12:31:14 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * condvar.c (pthread_cond_init): set semaphore initial value
- to 0, not 1. cond_timedwait was returning signaled immediately.
-
- * misc.c (CancelableWait): Place the cancel event handle first
- in the handle table for WaitForMultipleObjects. This ensures that
- the cancel event is recognised and acted apon if both objects
- happen to be signaled together.
-
- * private.c (ptw32_cond_test_init_lock): Initialise and destroy.
-
- * implement.h (ptw32_cond_test_init_lock): Add extern.
-
- * global.c (ptw32_cond_test_init_lock): Add declaration.
-
- * condvar.c (pthread_cond_destroy): check for valid initialised CV;
- flag destroyed CVs as invalid.
- (pthread_cond_init): pthread_cond_t is no longer just a pointer.
- This is because PTHREAD_COND_INITIALIZER needs state info to reside
- in pthread_cond_t so that it can initialise on first use. Will work on
- making pthread_cond_t (and other objects like it) opaque again, if
- possible, later.
- (cond_timedwait): add check for statically initialisation of
- CV; initialise on first use.
- (pthread_cond_signal): check for valid CV.
- (pthread_cond_broadcast): check for valid CV.
- (_cond_check_need_init): Add.
-
- * pthread.h (PTHREAD_COND_INITIALIZER): Fix.
- (pthread_cond_t): no longer a pointer to pthread_cond_t_.
- (pthread_cond_t_): add 'staticinit' and 'valid' elements.
-
-Sat Mar 6 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * implement.h: Undate comments.
-
-Sun Feb 21 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * pthread.h (PTHREAD_MUTEX_INITIALIZER): missing braces around
- cs element initialiser.
-
-1999-02-21 Ben Elliston <bje@cygnus.com>
-
- * pthread.h (pthread_exit): The return type of this function is
- void, not int.
-
- * exit.c (pthread_exit): Do not return 0.
-
-Sat Feb 20 16:03:30 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * dll.c (DLLMain): Expand TryEnterCriticalSection support test.
-
- * mutex.c (pthread_mutex_trylock): The check for
- ptw32_try_enter_critical_section == NULL should have been
- removed long ago.
-
-Fri Feb 19 16:03:30 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * sync.c (pthread_join): Fix pthread_equal() test.
-
- * mutex.c (pthread_mutex_trylock): Check mutex != NULL before
- using it.
-
-Thu Feb 18 16:17:30 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * misc.c (pthread_equal): Fix inverted result.
-
- * Makefile.in: Use libpthread32.a as the name of the DLL export
- library instead of pthread.lib.
-
- * condvar.c (pthread_cond_init): cv could have been used unitialised;
- initialise.
-
- * create.c (pthread_create): parms could have been used unitialised;
- initialise.
-
- * pthread.h (struct pthread_once_t_): Remove redefinition.
-
-Sat Feb 13 03:03:30 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * pthread.h (struct pthread_once_t_): Replaced.
-
- * misc.c (pthread_once): Replace with John Bossom's version;
- has lighter weight serialisation; fixes problem of not holding
- competing threads until after the init_routine completes.
-
-Thu Feb 11 13:34:14 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * misc.c (CancelableWait): Change C++ exception throw.
-
- * sync.c (pthread_join): Change FIXME comment - issue resolved.
-
-Wed Feb 10 12:49:11 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * configure: Various temporary changes.
- - Kevin Ruland <Kevin.Ruland@anheuser-busch.com>
-
- * README: Update.
-
- * pthread.def (pthread_attr_getstackaddr): uncomment
- (pthread_attr_setstackaddr): uncomment
-
-Fri Feb 5 13:42:30 1999 Ross Johnson <rpj@swan.canberra.edu.au>
-
- * semaphore.c: Comment format changes.
-
-Thu Feb 4 10:07:28 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * global.c: Remove ptw32_exception instantiation.
-
- * cancel.c (pthread_testcancel): Change C++ exception throw.
-
- * implement.h: Remove extern declaration.
-
-Wed Feb 3 13:04:44 1999 Ross Johnson <rpj@swan.canberra.edu.au>
-
- * cleanup.c: Rename ptw32_*_cleanup() to pthread_*_cleanup().
-
- * pthread.def: Ditto.
-
- * pthread.h: Ditto.
-
- * pthread.def (pthread_cleanup_push): Remove from export list;
- the function is defined as a macro under all compilers.
- (pthread_cleanup_pop): Ditto.
-
- * pthread.h: Remove #if defined().
-
-Wed Feb 3 10:13:48 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * sync.c (pthread_join): Check for NULL value_ptr arg;
- check for detached threads.
-
-Tue Feb 2 18:07:43 1999 Ross Johnson <rpj@swan.canberra.edu.au>
-
- * implement.h: Add #include <pthread.h>.
- Change sem_t to ptw32_sem_t.
-
- Various patches by Kevin Ruland <Kevin.Ruland@anheuser-busch.com>
-
- * signal.c (pthread_sigmask): Add and modify casts.
- Reverse LHS/RHS bitwise assignments.
-
- * pthread.h: Remove #include <semaphore.h>.
- (PTW32_ATTR_VALID): Add cast.
- (struct pthread_t_): Add sigmask element.
-
- * dll.c: Add "extern C" for DLLMain.
- (DllMain): Add cast.
-
- * create.c (pthread_create): Set sigmask in thread.
-
- * condvar.c: Remove #include. Change sem_* to ptw32_sem_*.
-
- * attr.c: Changed #include.
-
- * Makefile.in: Additional targets and changes to build the library
- as a DLL.
-
-Fri Jan 29 11:56:28 1999 Ross Johnson <rpj@swan.canberra.edu.au>
-
- * Makefile.in (OBJS): Add semaphore.o to list.
-
- * semaphore.c (ptw32_sem_timedwait): Move from private.c.
- Rename sem_* to ptw32_sem_*.
-
- * pthread.h (pthread_cond_t): Change type of sem_t.
- _POSIX_SEMAPHORES no longer defined.
-
- * semaphore.h: Contents moved to implement.h.
- Removed from source tree.
-
- * implement.h: Add semaphore function prototypes and rename all
- functions to prepend 'ptw32_'. They are
- now private to the pthreads-win32 implementation.
-
- * private.c: Change #warning.
- Move ptw32_sem_timedwait() to semaphore.c.
-
- * cleanup.c: Change #warning.
-
- * misc.c: Remove #include <errno.h>
-
- * pthread.def: Cleanup CVS merge conflicts.
-
- * global.c: Ditto.
-
- * ChangeLog: Ditto.
-
- * cleanup.c: Ditto.
-
-Sun Jan 24 01:34:52 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * semaphore.c (sem_wait): Remove second arg to
- pthreadCancelableWait() call.
-
-Sat Jan 23 17:36:40 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * pthread.def: Add new functions to export list.
-
- * pthread.h (PTHREAD_MUTEX_AUTO_CS_NP): New.
- (PTHREAD_MUTEX_FORCE_CS_NP): New.
-
- * README: Updated.
-
-Fri Jan 22 14:31:59 1999 Ross Johnson <rpj@swan.canberra.edu.au>
-
- * Makefile.in (CFLAGS): Remove -fhandle-exceptions. Not needed
- with egcs. Add -g for debugging.
-
- * create.c (pthread_create): Replace __stdcall with PT_STDCALL
- macro. This is a hack and must be fixed.
-
- * misc.c (CancelableWait): Remove redundant statement.
-
- * mutex.c (pthread_mutexattr_init): Cast calloc return value.
-
- * misc.c (CancelableWait): Add cast.
- (pthread_self): Add cast.
-
- * exit.c (pthread_exit): Add cast.
-
- * condvar.c (pthread_condattr_init): Cast calloc return value.
-
- * cleanup.c: Reorganise conditional compilation.
-
- * attr.c (pthread_attr_init): Remove unused 'result'.
- Cast malloc return value.
-
- * private.c (ptw32_callUserDestroyRoutines): Redo conditional
- compilation.
-
- * misc.c (CancelableWait): C++ version uses 'throw'.
-
- * cancel.c (pthread_testcancel): Ditto.
-
- * implement.h (class ptw32_exception): Define for C++.
-
- * pthread.h: Fix C, C++, and Win32 SEH condition compilation
- mayhem around pthread_cleanup_* defines. C++ version now uses John
- Bossom's cleanup handlers.
- (pthread_attr_t): Make 'valid' unsigned.
- Define '_timeb' as 'timeb' for Ming32.
- Define PT_STDCALL as nothing for Mingw32. May be temporary.
-
- * cancel.c (pthread_testcancel): Cast return value.
-
-Wed Jan 20 09:31:28 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * pthread.h (pthread_mutexattr_t): Changed to a pointer.
-
- * mutex.c (pthread_mutex_init): Conditionally create Win32 mutex
- - from John Bossom's implementation.
- (pthread_mutex_destroy): Conditionally close Win32 mutex
- - from John Bossom's implementation.
- (pthread_mutexattr_init): Replaced by John Bossom's version.
- (pthread_mutexattr_destroy): Ditto.
- (pthread_mutexattr_getpshared): New function from John Bossom's
- implementation.
- (pthread_mutexattr_setpshared): New function from John Bossom's
- implementation.
-
-Tue Jan 19 18:27:42 1999 Ross Johnson <rpj@swan.canberra.edu.au>
-
- * pthread.h (pthreadCancelableTimedWait): New prototype.
- (pthreadCancelableWait): Remove second argument.
-
- * misc.c (CancelableWait): New static function is
- pthreadCancelableWait() renamed.
- (pthreadCancelableWait): Now just calls CancelableWait() with
- INFINITE timeout.
- (pthreadCancelableTimedWait): Just calls CancelableWait()
- with passed in timeout.
-
- * private.c (ptw32_sem_timedwait): 'abstime' arg really is
- absolute time. Calculate relative time to wait from current
- time before passing timeout to new routine
- pthreadCancelableTimedWait().
- - Scott Lightner <scott@curriculum.com>
-
-Tue Jan 19 10:27:39 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * pthread.h (pthread_mutexattr_setforcecs_np): New prototype.
-
- * mutex.c (pthread_mutexattr_init): Init 'pshared' and 'forcecs'
- attributes to 0.
- (pthread_mutexattr_setforcecs_np): New function (not portable).
-
- * pthread.h (pthread_mutex_t):
- Add 'mutex' element. Set to NULL in PTHREAD_MUTEX_INITIALIZER.
- The pthread_mutex_*() routines will try to optimise performance
- by choosing either mutexes or critical sections as the basis
- for pthread mutexes for each indevidual mutex.
- (pthread_mutexattr_t_): Add 'forcecs' element.
- Some applications may choose to force use of critical sections
- if they know that:-
- the mutex is PROCESS_PRIVATE and,
- either the OS supports TryEnterCriticalSection() or
- pthread_mutex_trylock() will never be called on the mutex.
- This attribute will be setable via a non-portable routine.
-
- Note: We don't yet support PROCESS_SHARED mutexes, so the
- implementation as it stands will default to Win32 mutexes only if
- the OS doesn't support TryEnterCriticalSection. On Win9x, and early
- versions of NT 'forcecs' will need to be set in order to get
- critical section based mutexes.
-
-Sun Jan 17 12:01:26 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * pthread.h (PTHREAD_MUTEX_INITIALIZER): Init new 'staticinit'
- value to '1' and existing 'valid' value to '1'.
-
- * global.c (ptw32_mutex_test_init_lock): Add.
-
- * implement.h (ptw32_mutex_test_init_lock.): Add extern.
-
- * private.c (ptw32_processInitialize): Init critical section for
- global lock used by _mutex_check_need_init().
- (ptw32_processTerminate): Ditto (:s/Init/Destroy/).
-
- * dll.c (dllMain): Move call to FreeLibrary() so that it is only
- called once when the process detaches.
-
- * mutex.c (_mutex_check_need_init): New static function to test
- and init PTHREAD_MUTEX_INITIALIZER mutexes. Provides serialised
- access to the internal state of the uninitialised static mutex.
- Called from pthread_mutex_trylock() and pthread_mutex_lock() which
- do a quick unguarded test to check if _mutex_check_need_init()
- needs to be called. This is safe as the test is conservative
- and is repeated inside the guarded section of
- _mutex_check_need_init(). Thus in all calls except the first
- calls to lock static mutexes, the additional overhead to lock any
- mutex is a single memory fetch and test for zero.
-
- * pthread.h (pthread_mutex_t_): Add 'staticinit' member. Mutexes
- initialised by PTHREAD_MUTEX_INITIALIZER aren't really initialised
- until the first attempt to lock it. Using the 'valid'
- flag (which flags the mutex as destroyed or not) to record this
- information would be messy. It is possible for a statically
- initialised mutex such as this to be destroyed before ever being
- used.
-
- * mutex.c (pthread_mutex_trylock): Call _mutex_check_need_init()
- to test/init PTHREAD_MUTEX_INITIALIZER mutexes.
- (pthread_mutex_lock): Ditto.
- (pthread_mutex_unlock): Add check to ensure we don't try to unlock
- an unitialised static mutex.
- (pthread_mutex_destroy): Add check to ensure we don't try to delete
- a critical section that we never created. Allows us to destroy
- a static mutex that has never been locked (and hence initialised).
- (pthread_mutex_init): Set 'staticinit' flag to 0 for the new mutex.
-
-Sun Jan 17 12:01:26 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * private.c (ptw32_sem_timedwait): Move from semaphore.c.
-
- * semaphore.c : Remove redundant #includes.
- (ptw32_sem_timedwait): Move to private.c.
- (sem_wait): Add missing abstime arg to pthreadCancelableWait() call.
-
-Fri Jan 15 23:38:05 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * condvar.c (cond_timedwait): Remove comment.
-
-Fri Jan 15 15:41:28 1999 Ross Johnson <rpj@swan.canberra.edu.au>
-
- * pthread.h: Add new 'abstime' arg to pthreadCancelableWait()
- prototype.
-
- * condvar.c (cond_timedwait): New generalised function called by
- both pthread_cond_wait() and pthread_cond_timedwait(). This is
- essentially pthread_cond_wait() renamed and modified to add the
- 'abstime' arg and call the new ptw32_sem_timedwait() instead of
- sem_wait().
- (pthread_cond_wait): Now just calls the internal static
- function cond_timedwait() with an INFINITE wait.
- (pthread_cond_timedwait): Now implemented. Calls the internal
- static function cond_timedwait().
-
- * implement.h (ptw32_sem_timedwait): New internal function
- prototype.
-
- * misc.c (pthreadCancelableWait): Added new 'abstime' argument
- to allow shorter than INFINITE wait.
-
- * semaphore.c (ptw32_sem_timedwait): New function for internal
- use. This is essentially sem_wait() modified to add the
- 'abstime' arg and call the modified (see above)
- pthreadCancelableWait().
-
-Thu Jan 14 14:27:13 1999 Ross Johnson <rpj@swan.canberra.edu.au>
-
- * cleanup.c: Correct _cplusplus to __cplusplus wherever used.
-
- * Makefile.in: Add CC=g++ and add -fhandle-exceptions to CFLAGS.
- The derived Makefile will compile all units of the package as C++
- so that those which include try/catch exception handling should work
- properly. The package should compile ok if CC=gcc, however, exception
- handling will not be included and thus thread cancellation, for
- example, will not work.
-
- * cleanup.c (ptw32_pop_cleanup): Add #warning to compile this
- file as C++ if using a cygwin32 environment. Perhaps the whole package
- should be compiled using g++ under cygwin.
-
- * private.c (ptw32_threadStart): Change #error directive
- into #warning and bracket for __CYGWIN__ and derivative compilers.
-
-Wed Jan 13 09:34:52 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * build.bat: Delete old binaries before compiling/linking.
-
-Tue Jan 12 09:58:38 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * dll.c: The Microsoft compiler pragmas probably are more
- appropriately protected by _MSC_VER than by _WIN32.
- - Tor Lillqvist <tml@iki.fi>.
-
- * condvar.c (pthread_cond_timedwait): Fix function description
- comments.
-
- * pthread.h: Define ETIMEDOUT. This should be returned by
- pthread_cond_timedwait which is not implemented yet as of
- snapshot-1999-01-04-1305. It was implemented in the older version.
- The Microsoft compiler pragmas probably are more appropriately
- protected by _MSC_VER than by _WIN32.
- - Tor Lillqvist <tml@iki.fi>.
-
- * pthread.def: pthread_mutex_destroy was missing from the def file
- - Tor Lillqvist <tml@iki.fi>.
-
- * condvar.c (pthread_cond_broadcast): Ensure we only wait on threads
- if there were any waiting on the condition.
- I think pthread_cond_broadcast should do the WaitForSingleObject
- only if cv->waiters > 0? Otherwise it seems to hang, at least in the
- testg thread program from glib.
- - Tor Lillqvist <tml@iki.fi>.
-
- * semaphore.c (sem_post): Correct typo in comment.
-
-Mon Jan 11 20:33:19 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * pthread.h: Re-arrange conditional compile of pthread_cleanup-*
- macros.
-
- * cleanup.c (ptw32_push_cleanup): Provide conditional
- compile of cleanup->prev.
-
-1999-01-11 Ben Elliston <bje@cygnus.com>
-
- * condvar.c (pthread_cond_init): Invert logic when testing the
- return value from calloc().
- - Tor Lillqvist <tml@iki.fi>.
-
-Sat Jan 9 14:32:08 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * implement.h: Compile-time switch for CYGWIN derived environments
- to use CreateThread instead of _beginthreadex. Ditto for ExitThread.
- Patch provided by Anders Norlander <anorland@hem2.passagen.se>.
-
-Tue Jan 5 16:33:04 1999 Ross Johnson <rpj@swan.canberra.edu.au>
-
- * cleanup.c (ptw32_pop_cleanup): Add C++ version of __try/__except
- block. Move trailing "}" out of #ifdef _WIN32 block left there by
- (rpj's) mistake.
-
- * private.c: Remove #include <errno.h> which is included by pthread.h.
-
-1998-12-11 Ben Elliston <bje@toilet.to.cygnus.com>
-
- * README: Update info about subscribing to the mailing list.
-
-Mon Jan 4 11:23:40 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * all: No code changes, just cleanup.
- - remove #if 0 /* Pre Bossom */ enclosed code.
- - Remove some redundant #includes.
- * pthread.h: Update implemented/unimplemented routines list.
- * Tag the bossom merge branch getting ready to merge back to main
- trunk.
-
-Tue Dec 29 13:11:16 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * implement.h: Move the following struct definitions to pthread.h:
- pthread_t_, pthread_attr_t_, pthread_mutex_t_, pthread_mutex_t_,
- pthread_mutexattr_t_, pthread_key_t_, pthread_cond_t_,
- pthread_condattr_t_, pthread_once_t_.
-
- * pthread.h: Add "_" prefix to pthread_push_cleanup and
- pthread_pop_cleanup internal routines, and associated struct and
- typedefs.
-
- * buildlib.bat: Add compile command for semaphore.c
-
- * pthread.def: Comment out pthread_atfork routine name.
- Now unimplemented.
-
- * tsd.c (pthread_setspecific): Rename tkAssocCreate to
- ptw32_tkAssocCreate.
- (pthread_key_delete): Rename tkAssocDestroy to
- ptw32_tkAssocDestroy.
-
- * sync.c (pthread_join): Rename threadDestroy to ptw32_threadDestroy
-
- * sched.c (is_attr): attr is now **attr (was *attr), so add extra
- NULL pointer test.
- (pthread_attr_setschedparam): Increase redirection for attr which is
- now a **.
- (pthread_attr_getschedparam): Ditto.
- (pthread_setschedparam): Change thread validation and rename "thread"
- Win32 thread Handle element name to match John Bossom's version.
- (pthread_getschedparam): Ditto.
-
- * private.c (ptw32_threadDestroy): Rename call to
- callUserDestroyRoutines() as ptw32_callUserDestroyRoutines()
-
- * misc.c: Add #include "implement.h".
-
- * dll.c: Remove defined(KLUDGE) wrapped code.
-
- * fork.c: Remove redefinition of ENOMEM.
- Remove pthread_atfork() and fork() with #if 0/#endif.
-
- * create.c (pthread_create): Rename threadStart and threadDestroy calls
- to ptw32_threadStart and ptw32_threadDestroy.
-
- * implement.h: Rename "detachedstate" to "detachstate".
-
- * attr.c: Rename "detachedstate" to "detachstate".
-
-Mon Dec 28 09:54:39 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * semaphore.c: Initial version. From John Bossom's implementation.
- * semaphore.h: Initial version. From John Bossom's implementation.
-
-Mon Dec 28 09:54:39 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * pthread.h (pthread_attr_t_): Change to *pthread_attr_t.
-
- * attr.c (pthread_attr_setstacksize): Merge with John Bossom's version.
- (pthread_attr_getstacksize): Merge with John Bossom's version.
- (pthread_attr_setstackaddr): Merge with John Bossom's version.
- (pthread_attr_getstackaddr): Merge with John Bossom's version.
- (pthread_attr_init): Merge with John Bossom's version.
- (pthread_attr_destroy): Merge with John Bossom's version.
- (pthread_attr_getdetachstate): Merge with John Bossom's version.
- (pthread_attr_setdetachstate): Merge with John Bossom's version.
- (is_attr): attr is now **attr (was *attr), so add extra NULL pointer
- test.
-
- * implement.h (pthread_attr_t_): Add and rename elements in JEB's
- version to correspond to original, so that it can be used with
- original attr routines.
-
- * pthread.h: Add #endif at end which was truncated in merging.
-
-Sun Dec 20 14:51:58 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * misc.c (pthreadCancelableWait): New function by John Bossom. Non-standard
- but provides a hook that can be used to implement cancellation points in
- applications that use this library.
-
- * pthread.h (pthread_cleanup_pop): C++ (non-WIN32) version uses
- try/catch to emulate John Bossom's WIN32 __try/__finally behaviour.
- In the WIN32 version __finally block, add a test for AbnormalTermination otherwise
- cleanup is only run if the cleanup_pop execute arg is non-zero. Cancellation
- should cause the cleanup to run irrespective of the execute arg.
-
- * condvar.c (pthread_condattr_init): Replaced by John Bossom's version.
- (pthread_condattr_destroy): Replaced by John Bossom's version.
- (pthread_condattr_getpshared): Replaced by John Bossom's version.
- (pthread_condattr_setpshared): Replaced by John Bossom's version.
- (pthread_cond_init): Replaced by John Bossom's version.
- Fix comment (refered to mutex rather than condition variable).
- (pthread_cond_destroy): Replaced by John Bossom's version.
- (pthread_cond_wait): Replaced by John Bossom's version.
- (pthread_cond_timedwait): Replaced by John Bossom's version.
- (pthread_cond_signal): Replaced by John Bossom's version.
- (pthread_cond_broadcast): Replaced by John Bossom's version.
-
-Thu Dec 17 19:10:46 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * tsd.c (pthread_key_create): Replaced by John Bossom's version.
- (pthread_key_delete): Replaced by John Bossom's version.
- (pthread_setspecific): Replaced by John Bossom's version.
- (pthread_getspecific): Replaced by John Bossom's version.
-
-Mon Dec 7 09:44:40 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * cancel.c (pthread_setcancelstate): Replaced by John Bossom's version.
- (pthread_setcanceltype): Replaced by John Bossom's version.
- (pthread_testcancel): Replaced by John Bossom's version.
- (pthread_cancel): Replaced by John Bossom's version.
-
- * exit.c (pthread_exit): Replaced by John Bossom's version.
-
- * misc.c (pthread_self): Replaced by John Bossom's version.
- (pthread_equal): Replaced by John Bossom's version.
-
- * sync.c (pthread_detach): Replaced by John Bossom's version.
- (pthread_join): Replaced by John Bossom's version.
-
- * create.c (pthread_create): Replaced by John Bossom's version.
-
- * private.c (ptw32_processInitialize): New by John Bossom.
- (ptw32_processTerminate): Non-public function by John Bossom.
- (ptw32_threadStart): Non-public function by John Bossom.
- (ptw32_threadDestroy): Non-public function by John Bossom.
- (ptw32_cleanupStack): Non-public function by John Bossom.
- (ptw32_tkAssocCreate): Non-public function by John Bossom.
- (ptw32_tkAssocDestroy): Non-public function by John Bossom.
- (ptw32_callUserDestroyRoutines): Non-public function by John Bossom.
-
- * implement.h: Added John Bossom's non-API structures and
- declarations.
-
- * dll.c (PthreadsEntryPoint): Cast return value of GetProcAddress
- to resolve compile warning from MSVC.
-
- * dll.c (DLLmain): Replaced by John Bossom's version.
- * dll.c (PthreadsEntryPoint):
- Re-applied Anders Norlander's patch:-
- Initialize ptw32_try_enter_critical_section at startup
- and release kernel32 handle when DLL is being unloaded.
-
-Sun Dec 6 21:54:35 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * buildlib.bat: Fix args to CL when building the .DLL
-
- * cleanup.c (ptw32_destructor_run_all): Fix TSD key management.
- This is a tidy-up before TSD and Thread management is completely
- replaced by John Bossom's code.
-
- * tsd.c (pthread_key_create): Fix TSD key management.
-
- * global.c (ptw32_key_virgin_next): Initialise.
-
- * build.bat: New DOS script to compile and link a pthreads app
- using Microsoft's CL compiler linker.
- * buildlib.bat: New DOS script to compile all the object files
- and create pthread.lib and pthread.dll using Microsoft's CL
- compiler linker.
-
-1998-12-05 Anders Norlander <anorland@hem2.passagen.se>
-
- * implement.h (ptw32_try_enter_critical_section): New extern
- * dll.c (ptw32_try_enter_critical_section): New pointer to
- TryEnterCriticalSection if it exists; otherwise NULL.
- * dll.c (PthreadsEntryPoint):
- Initialize ptw32_try_enter_critical_section at startup
- and release kernel32 handle when DLL is being unloaded.
- * mutex.c (pthread_mutex_trylock): Replaced check for NT with
- a check if ptw32_try_enter_critical_section is valid
- pointer to a function. Call ptw32_try_enter_critical_section
- instead of TryEnterCriticalSection to avoid errors on Win95.
-
-Thu Dec 3 13:32:00 1998 Ross Johnson <rpj@ise.canberra.edu.au>
-
- * README: Correct cygwin32 compatibility statement.
-
-Sun Nov 15 21:24:06 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * cleanup.c (ptw32_destructor_run_all): Declare missing void * arg.
- Fixup CVS merge conflicts.
-
-1998-10-30 Ben Elliston <bje@cygnus.com>
-
- * condvar.c (cond_wait): Fix semantic error. Test for equality
- instead of making an assignment.
-
-Fri Oct 30 15:15:50 1998 Ross Johnson <rpj@swan.canberra.edu.au>
-
- * cleanup.c (ptw32_handler_push): Fixed bug appending new
- handler to list reported by Peter Slacik
- <Peter.Slacik@leibinger.freinet.de>.
- (new_thread): Rename poorly named local variable to
- "new_handler".
-
-Sat Oct 24 18:34:59 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * global.c: Add TSD key management array and index declarations.
-
- * implement.h: Ditto for externs.
-
-Fri Oct 23 00:08:09 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * implement.h (PTW32_TSD_KEY_REUSE): Add enum.
-
- * private.c (ptw32_delete_thread): Add call to
- ptw32_destructor_run_all() to clean up the threads keys.
-
- * cleanup.c (ptw32_destructor_run_all): Check for no more dirty
- keys to run destructors on. Assume that the destructor call always
- succeeds and set the key value to NULL.
-
-Thu Oct 22 21:44:44 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * tsd.c (pthread_setspecific): Add key management code.
- (pthread_key_create): Ditto.
- (pthread_key_delete): Ditto.
-
- * implement.h (struct ptw32_tsd_key): Add status member.
-
- * tsd.c: Add description of pthread_key_delete() from the
- standard as a comment.
-
-Fri Oct 16 17:38:47 1998 Ross Johnson <rpj@swan.canberra.edu.au>
-
- * cleanup.c (ptw32_destructor_run_all): Fix and improve
- stepping through the key table.
-
-Thu Oct 15 14:05:01 1998 Ross Johnson <rpj@swan.canberra.edu.au>
-
- * private.c (ptw32_new_thread): Remove init of destructorstack.
- No longer an element of pthread_t.
-
- * tsd.c (pthread_setspecific): Fix type declaration and cast.
- (pthread_getspecific): Ditto.
- (pthread_getspecific): Change error return value to NULL if key
- is not in use.
-
-Thu Oct 15 11:53:21 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * global.c (ptw32_tsd_key_table): Fix declaration.
-
- * implement.h(ptw32_TSD_keys_TlsIndex): Add missing extern.
- (ptw32_tsd_mutex): Ditto.
-
- * create.c (ptw32_start_call): Fix "keys" array declaration.
- Add comment.
-
- * tsd.c (pthread_setspecific): Fix type declaration and cast.
- (pthread_getspecific): Ditto.
-
- * cleanup.c (ptw32_destructor_run_all): Declare missing loop
- counter.
-
-Wed Oct 14 21:09:24 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * private.c (ptw32_new_thread): Increment ptw32_threads_count.
- (ptw32_delete_thread): Decrement ptw32_threads_count.
- Remove some comments.
-
- * exit.c (ptw32_exit): : Fix two pthread_mutex_lock() calls that
- should have been pthread_mutex_unlock() calls.
- (ptw32_vacuum): Remove call to ptw32_destructor_pop_all().
-
- * create.c (pthread_create): Fix two pthread_mutex_lock() calls that
- should have been pthread_mutex_unlock() calls.
-
- * global.c (ptw32_tsd_mutex): Add mutex for TSD operations.
-
- * tsd.c (pthread_key_create): Add critical section.
- (pthread_setspecific): Ditto.
- (pthread_getspecific): Ditto.
- (pthread_key_delete): Ditto.
-
- * sync.c (pthread_join): Fix two pthread_mutex_lock() calls that
- should have been pthread_mutex_unlock() calls.
-
-Mon Oct 12 00:00:44 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * implement.h (ptw32_tsd_key_table): New.
-
- * create.c (ptw32_start_call): Initialise per-thread TSD keys
- to NULL.
-
- * misc.c (pthread_once): Correct typo in comment.
-
- * implement.h (ptw32_destructor_push): Remove.
- (ptw32_destructor_pop): Remove.
- (ptw32_destructor_run_all): Rename from ptw32_destructor_pop_all.
- (PTW32_TSD_KEY_DELETED): Add enum.
- (PTW32_TSD_KEY_INUSE): Add enum.
-
- * cleanup.c (ptw32_destructor_push): Remove.
- (ptw32_destructor_pop): Remove.
- (ptw32_destructor_run_all): Totally revamped TSD.
-
- * dll.c (ptw32_TSD_keys_TlsIndex): Initialise.
-
- * tsd.c (pthread_setspecific): Totally revamped TSD.
- (pthread_getspecific): Ditto.
- (pthread_create): Ditto.
- (pthread_delete): Ditto.
-
-Sun Oct 11 22:44:55 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * global.c (ptw32_tsd_key_table): Add new global.
-
- * implement.h (ptw32_tsd_key_t and struct ptw32_tsd_key):
- Add.
- (struct _pthread): Remove destructorstack.
-
- * cleanup.c (ptw32_destructor_run_all): Rename from
- ptw32_destructor_pop_all. The key destructor stack was made
- global rather than per-thread. No longer removes destructor nodes
- from the stack. Comments updated.
-
-1998-10-06 Ben Elliston <bje@cygnus.com>
-
- * condvar.c (cond_wait): Use POSIX, not Win32 mutex calls.
- (pthread_cond_broadcast): Likewise.
- (pthread_cond_signal): Likewise.
-
-1998-10-05 Ben Elliston <bje@cygnus.com>
-
- * pthread.def: Update. Some functions aren't available yet, others
- are macros in <pthread.h>.
-
- * tests/join.c: Remove; useless.
-
-Mon Oct 5 14:25:08 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * pthread.def: New file for building the DLL.
-
-1998-10-05 Ben Elliston <bje@cygnus.com>
-
- * misc.c (pthread_equal): Correct inverted logic bug.
- (pthread_once): Use the POSIX mutex primitives, not Win32. Remove
- irrelevant FIXME comment.
-
- * global.c (PTHREAD_MUTEX_INITIALIZER): Move to pthread.h.
-
- * pthread.h (PTHREAD_MUTEX_INITIALIZER): Define.
- (pthread_mutex_t): Reimplement as a struct containing a valid
- flag. If the flag is ever down upon entry to a mutex operation,
- we call pthread_mutex_create() to initialise the object. This
- fixes the problem of how to handle statically initialised objects
- that can't call InitializeCriticalSection() due to their context.
- (PTHREAD_ONCE_INIT): Define.
-
- * mutex.c (pthread_mutex_init): Set valid flag.
- (pthread_mutex_destroy): Clear valid flag.
- (pthread_mutex_lock): Check and handle the valid flag.
- (pthread_mutex_unlock): Likewise.
- (pthread_mutex_trylock): Likewise.
-
- * tests/mutex3.c: New file; test for the static initialisation
- macro. Passes.
-
- * tests/create1.c: New file; test pthread_create(). Passes.
-
- * tests/equal.c: Poor test; remove.
-
- * tests/equal1.c New file; test pthread_equal(). Passes.
-
- * tests/once1.c: New file; test for pthread_once(). Passes.
-
- * tests/self.c: Remove; rename to self1.c.
-
- * tests/self1.c: This is the old self.c.
-
- * tests/self2.c: New file. Test pthread_self() with a single
- thread. Passes.
-
- * tests/self3.c: New file. Test pthread_self() with a couple of
- threads to ensure their thread IDs differ. Passes.
-
-1998-10-04 Ben Elliston <bje@cygnus.com>
-
- * tests/mutex2.c: Test pthread_mutex_trylock(). Passes.
-
- * tests/mutex1.c: New basic test for mutex functions (it passes).
- (main): Eliminate warning.
-
- * configure.in: Test for __stdcall, not _stdcall. Typo.
-
- * configure: Regenerate.
-
- * attr.c (pthread_attr_setstackaddr): Remove FIXME comment. Win32
- does know about ENOSYS after all.
- (pthread_attr_setstackaddr): Likewise.
-
-1998-10-03 Ben Elliston <bje@cygnus.com>
-
- * configure.in: Test for the `_stdcall' keyword. Define `STDCALL'
- to `_stdcall' if we have it, null otherwise.
-
- * configure: Regenerate.
-
- * acconfig.h (STDCALL): New define.
-
- * config.h.in: Regenerate.
-
- * create.c (ptw32_start_call): Add STDCALL prefix.
-
- * mutex.c (pthread_mutex_init): Correct function signature.
-
- * attr.c (pthread_attr_init): Only zero out the `sigmask' member
- if we have the sigset_t type.
-
- * pthread.h: No need to include <unistd.h>. It doesn't even exist
- on Win32! Again, an artifact of cross-compilation.
- (pthread_sigmask): Only provide if we have the sigset_t type.
-
- * process.h: Remove. This was a stand-in before we started doing
- native compilation under Win32.
-
- * pthread.h (pthread_mutex_init): Make `attr' argument const.
-
-1998-10-02 Ben Elliston <bje@cygnus.com>
-
- * COPYING: Remove.
-
- * COPYING.LIB: Add. This library is under the LGPL.
-
-1998-09-13 Ben Elliston <bje@cygnus.com>
-
- * configure.in: Test for required system features.
-
- * configure: Generate.
-
- * acconfig.h: New file.
-
- * config.h.in: Generate.
-
- * Makefile.in: Renamed from Makefile.
-
- * COPYING: Import from a recent GNU package.
-
- * config.guess: Likewise.
-
- * config.sub: Likewise.
-
- * install-sh: Likewise.
-
- * config.h: Remove.
-
- * Makefile: Likewise.
-
-1998-09-12 Ben Elliston <bje@cygnus.com>
-
- * windows.h: No longer needed; remove.
-
- * windows.c: Likewise.
-
-Sat Sep 12 20:09:24 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * windows.h: Remove error number definitions. These are in <errno.h>
-
- * tsd.c: Add comment explaining rationale for not building
- POSIX TSD on top of Win32 TLS.
-
-1998-09-12 Ben Elliston <bje@cygnus.com>
-
- * {most}.c: Include <errno.h> to get POSIX error values.
-
- * signal.c (pthread_sigmask): Only provide if HAVE_SIGSET_T is
- defined.
-
- * config.h: #undef features, don't #define them. This will be
- generated by autoconf very soon.
-
-1998-08-11 Ben Elliston <bje@cygnus.com>
-
- * Makefile (LIB): Define.
- (clean): Define target.
- (all): Build a library not just the object files.
-
- * pthread.h: Provide a definition for struct timespec if we don't
- already have one.
-
- * windows.c (TlsGetValue): Bug fix.
-
-Thu Aug 6 15:19:22 1998 Ross Johnson <rpj@swan.canberra.edu.au>
-
- * misc.c (pthread_once): Fix arg 1 of EnterCriticalSection()
- and LeaveCriticalSection() calls to pass address-of lock.
-
- * fork.c (pthread_atfork): Typecast (void (*)(void *)) funcptr
- in each ptw32_handler_push() call.
-
- * exit.c (ptw32_exit): Fix attr arg in
- pthread_attr_getdetachstate() call.
-
- * private.c (ptw32_new_thread): Typecast (HANDLE) NULL.
- (ptw32_delete_thread): Ditto.
-
- * implement.h: (PTW32_MAX_THREADS): Add define. This keeps
- changing in an attempt to make thread administration data types
- opaque and cleanup DLL startup.
-
- * dll.c (PthreadsEntryPoint):
- (ptw32_virgins): Remove malloc() and free() calls.
- (ptw32_reuse): Ditto.
- (ptw32_win32handle_map): Ditto.
- (ptw32_threads_mutex_table): Ditto.
-
- * global.c (_POSIX_THREAD_THREADS_MAX): Initialise with
- PTW32_MAX_THREADS.
- (ptw32_virgins): Ditto.
- (ptw32_reuse): Ditto.
- (ptw32_win32handle_map): Ditto.
- (ptw32_threads_mutex_table): Ditto.
-
- * create.c (pthread_create): Typecast (HANDLE) NULL.
- Typecast (unsigned (*)(void *)) start_routine.
-
- * condvar.c (pthread_cond_init): Add address-of operator & to
- arg 1 of pthread_mutex_init() call.
- (pthread_cond_destroy): Add address-of operator & to
- arg 1 of pthread_mutex_destroy() call.
-
- * cleanup.c (ptw32_destructor_pop_all): Add (int) cast to
- pthread_getspecific() arg.
- (ptw32_destructor_pop): Add (void *) cast to "if" conditional.
- (ptw32_destructor_push): Add (void *) cast to
- ptw32_handler_push() "key" arg.
- (malloc.h): Add include.
-
- * implement.h (ptw32_destructor_pop): Add prototype.
-
- * tsd.c (implement.h): Add include.
-
- * sync.c (pthread_join): Remove target_thread_mutex and it's
- initialisation. Rename getdetachedstate to getdetachstate.
- Remove unused variable "exitcode".
- (pthread_detach): Remove target_thread_mutex and it's
- initialisation. Rename getdetachedstate to getdetachstate.
- Rename setdetachedstate to setdetachstate.
-
- * signal.c (pthread_sigmask): Rename SIG_SET to SIG_SETMASK.
- Cast "set" to (long *) in assignment to passify compiler warning.
- Add address-of operator & to thread->attr.sigmask in memcpy() call
- and assignment.
- (pthread_sigmask): Add address-of operator & to thread->attr.sigmask
- in memcpy() call and assignment.
-
- * windows.h (THREAD_PRIORITY_ERROR_RETURN): Add.
- (THREAD_PRIORITY_LOWEST): Add.
- (THREAD_PRIORITY_HIGHEST): Add.
-
- * sched.c (is_attr): Add function.
- (implement.h): Add include.
- (pthread_setschedparam): Rename all instances of "sched_policy"
- to "sched_priority".
- (pthread_getschedparam): Ditto.
-
-Tue Aug 4 16:57:58 1998 Ross Johnson <rpj@swan.canberra.edu.au>
-
- * private.c (ptw32_delete_thread): Fix typo. Add missing ';'.
-
- * global.c (ptw32_virgins): Change types from pointer to
- array pointer.
- (ptw32_reuse): Ditto.
- (ptw32_win32handle_map): Ditto.
- (ptw32_threads_mutex_table): Ditto.
-
- * implement.h(ptw32_virgins): Change types from pointer to
- array pointer.
- (ptw32_reuse): Ditto.
- (ptw32_win32handle_map): Ditto.
- (ptw32_threads_mutex_table): Ditto.
-
- * private.c (ptw32_delete_thread): Fix "entry" should be "thread".
-
- * misc.c (pthread_self): Add extern for ptw32_threadID_TlsIndex.
-
- * global.c: Add comment.
-
- * misc.c (pthread_once): Fix member -> dereferences.
- Change ptw32_once_flag to once_control->flag in "if" test.
-
-Tue Aug 4 00:09:30 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * implement.h(ptw32_virgins): Add extern.
- (ptw32_virgin_next): Ditto.
- (ptw32_reuse): Ditto.
- (ptw32_reuse_top): Ditto.
- (ptw32_win32handle_map): Ditto.
- (ptw32_threads_mutex_table): Ditto.
-
- * global.c (ptw32_virgins): Changed from array to pointer.
- Storage allocation for the array moved into dll.c.
- (ptw32_reuse): Ditto.
- (ptw32_win32handle_map): Ditto.
- (ptw32_threads_mutex_table): Ditto.
-
- * dll.c (PthreadsEntryPoint): Set up thread admin storage when
- DLL is loaded.
-
- * fork.c (pthread_atfork): Fix function pointer arg to all
- ptw32_handler_push() calls. Change "arg" arg to NULL in child push.
-
- * exit.c: Add windows.h and process.h includes.
- (ptw32_exit): Add local detachstate declaration.
- (ptw32_exit): Fix incorrect name for pthread_attr_getdetachstate().
-
- * pthread.h (_POSIX_THREAD_ATTR_STACKSIZE): Move from global.c
- (_POSIX_THREAD_ATTR_STACKADDR): Ditto.
-
- * create.c (pthread_create): Fix #if should be #ifdef.
- (ptw32_start_call): Remove usused variables.
-
- * process.h: Create.
-
- * windows.h: Move _beginthreadex and _endthreadex into
- process.h
-
-Mon Aug 3 21:19:57 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * condvar.c (pthread_cond_init): Add NULL attr to
- pthread_mutex_init() call - default attributes will be used.
- (cond_wait): Fix typo.
- (cond_wait): Fix typo - cv was ev.
- (pthread_cond_broadcast): Fix two identical typos.
-
- * cleanup.c (ptw32_destructor_pop_all): Remove _ prefix from
- PTHREAD_DESTRUCTOR_ITERATIONS.
-
- * pthread.h: Move _POSIX_* values into posix.h
-
- * pthread.h: Fix typo in pthread_mutex_init() prototype.
-
- * attr.c (pthread_attr_init): Fix error in priority member init.
-
- * windows.h (THREAD_PRIORITY_NORMAL): Add.
-
- * pthread.h (sched_param): Add missing ';' to struct definition.
-
- * attr.c (pthread_attr_init): Remove obsolete pthread_attr_t
- member initialisation - cancelstate, canceltype, cancel_pending.
- (is_attr): Make arg "attr" a const.
-
- * implement.h (PTW32_HANDLER_POP_LIFO): Remove definition.
- (PTW32_HANDLER_POP_FIFO): Ditto.
- (PTW32_VALID): Add missing newline escape (\).
- (ptw32_handler_node): Make element "next" a pointer.
-
-1998-08-02 Ben Elliston <bje@cygnus.com>
-
- * windows.h: Remove duplicate TlsSetValue() prototype. Add
- TlsGetValue() prototype.
- (FALSE): Define.
- (TRUE): Likewise.
- Add forgotten errno values. Guard against multiple #includes.
-
- * windows.c: New file. Implement stubs for Win32 functions.
-
- * Makefile (SRCS): Remove. Not explicitly needed.
- (CFLAGS): Add -Wall for all warnings with GCC.
-
-Sun Aug 2 19:03:42 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * config.h: Create. This is a temporary stand-in for autoconf yet
- to be done.
- (HAVE_SIGNAL_H): Add.
-
- * pthread.h: Minor rearrangement for temporary config.h.
-
-Fri Jul 31 14:00:29 1998 Ross Johnson <rpj@swan.canberra.edu.au>
-
- * cleanup.c (ptw32_destructor_pop): Implement. Removes
- destructors associated with a key without executing them.
- (ptw32_destructor_pop_all): Add FIXME comment.
-
- * tsd.c (pthread_key_delete): Add call to ptw32_destructor_pop().
-
-Fri Jul 31 00:05:45 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * tsd.c (pthread_key_create): Update to properly associate
- the destructor routine with the key.
- (pthread_key_delete): Add FIXME comment.
-
- * exit.c (ptw32_vacuum): Add call to
- ptw32_destructor_pop_all().
-
- * implement.h (ptw32_handler_pop_all): Add prototype.
- (ptw32_destructor_pop_all): Ditto.
-
- * cleanup.c (ptw32_destructor_push): Implement. This is just a
- call to ptw32_handler_push().
- (ptw32_destructor_pop_all): Implement. This is significantly
- different to ptw32_handler_pop_all().
-
- * Makefile (SRCS): Create. Preliminary.
-
- * windows.h: Create. Contains Win32 definitions for compile
- testing. This is just a standin for the real one.
-
- * pthread.h (SIG_UNBLOCK): Fix typo. Was SIG_BLOCK.
- (windows.h): Add include. Required for CRITICAL_SECTION.
- (pthread_cond_t): Move enum declaration outside of struct
- definition.
- (unistd.h): Add include - may be temporary.
-
- * condvar.c (windows.h): Add include.
-
- * implement.h (PTW32_THIS): Remove - no longer required.
- (PTW32_STACK): Use pthread_self() instead of PTW32_THIS.
-
-Thu Jul 30 23:12:45 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * implement.h: Remove ptw32_find_entry() prototype.
-
- * private.c: Extend comments.
- Remove ptw32_find_entry() - no longer needed.
-
- * create.c (ptw32_start_call): Add call to TlsSetValue() to
- store the thread ID.
-
- * dll.c (PthreadsEntryPoint): Implement. This is called
- whenever a process loads the DLL. Used to initialise thread
- local storage.
-
- * implement.h: Add ptw32_threadID_TlsIndex.
- Add ()s around PTW32_VALID expression.
-
- * misc.c (pthread_self): Re-implement using Win32 TLS to store
- the threads own ID.
-
-Wed Jul 29 11:39:03 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * private.c: Corrections in comments.
- (ptw32_new_thread): Alter "if" flow to be more natural.
-
- * cleanup.c (ptw32_handler_push): Same as below.
-
- * create.c (pthread_create): Same as below.
-
- * private.c (ptw32_new_thread): Rename "new" to "new_thread".
- Since when has a C programmer been required to know C++?
-
-Tue Jul 28 14:04:29 1998 Ross Johnson <rpj@swan.canberra.edu.au>
-
- * implement.h: Add PTW32_VALID macro.
-
- * sync.c (pthread_join): Modify to use the new thread
- type and ptw32_delete_thread(). Rename "target" to "thread".
- Remove extra local variable "target".
- (pthread_detach): Ditto.
-
- * signal.c (pthread_sigmask): Move init of "us" out of inner block.
- Fix instance of "this" should have been "us". Rename "us" to "thread".
-
- * sched.c (pthread_setschedparam): Modify to use the new thread
- type.
- (pthread_getschedparam): Ditto.
-
- * private.c (ptw32_find_thread): Fix return type and arg.
-
- * implement.h: Remove PTW32_YES and PTW32_NO.
- (ptw32_new_thread): Add prototype.
- (ptw32_find_thread): Ditto.
- (ptw32_delete_thread): Ditto.
- (ptw32_new_thread_entry): Remove prototype.
- (ptw32_find_thread_entry): Ditto.
- (ptw32_delete_thread_entry): Ditto.
- ( PTW32_NEW, PTW32_INUSE, PTW32_EXITED, PTW32_REUSE):
- Add.
-
-
- * create.c (pthread_create): Minor rename "us" to "new" (I need
- these cues but it doesn't stop me coming out with some major bugs
- at times).
- Load start_routine and arg into the thread so the wrapper can
- call it.
-
- * exit.c (pthread_exit): Fix pthread_this should be pthread_self.
-
- * cancel.c (pthread_setcancelstate): Change
- ptw32_threads_thread_t * to pthread_t and init with
- pthread_this().
- (pthread_setcanceltype): Ditto.
-
- * exit.c (ptw32_exit): Add new pthread_t arg.
- Rename ptw32_delete_thread_entry to ptw32_delete_thread.
- Rename "us" to "thread".
- (pthread_exit): Call ptw32_exit with added thread arg.
-
- * create.c (ptw32_start_call): Insert missing ")".
- Add "us" arg to ptw32_exit() call.
- (pthread_create): Modify to use new thread allocation scheme.
-
- * private.c: Added detailed explanation of the new thread
- allocation scheme.
- (ptw32_new_thread): Totally rewritten to use
- new thread allocation scheme.
- (ptw32_delete_thread): Ditto.
- (ptw32_find_thread): Obsolete.
-
-Mon Jul 27 17:46:37 1998 Ross Johnson <rpj@swan.canberra.edu.au>
-
- * create.c (pthread_create): Start of rewrite. Not completed yet.
-
- * private.c (ptw32_new_thread_entry): Start of rewrite. Not
- complete.
-
- * implement.h (ptw32_threads_thread): Rename, remove thread
- member, add win32handle and ptstatus members.
- (ptw32_t): Add.
-
- * pthread.h: pthread_t is no longer mapped directly to a Win32
- HANDLE type. This is so we can let the Win32 thread terminate and
- reuse the HANDLE while pthreads holds it's own thread ID until
- the last waiting join exits.
-
-Mon Jul 27 00:20:37 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * private.c (ptw32_delete_thread_entry): Destroy the thread
- entry attribute object before deleting the thread entry itself.
-
- * attr.c (pthread_attr_init): Initialise cancel_pending = FALSE.
- (pthread_attr_setdetachstate): Rename "detached" to "detachedstate".
- (pthread_attr_getdetachstate): Ditto.
-
- * exit.c (ptw32_exit): Fix incorrect check for detachedstate.
-
- * implement.h (ptw32_call_t): Remove env member.
-
-Sun Jul 26 13:06:12 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * implement.h (ptw32_new_thread_entry): Fix prototype.
- (ptw32_find_thread_entry): Ditto.
- (ptw32_delete_thread_entry): Ditto.
- (ptw32_exit): Add prototype.
-
- * exit.c (ptw32_exit): New function. Called from pthread_exit()
- and ptw32_start_call() to exit the thread. It allows an extra
- argument which is the return code passed to _endthreadex().
- (ptw32_exit): Move thread entry delete call from ptw32_vacuum()
- into here. Add more explanation of thread entry deletion.
- (ptw32_exit): Clarify comment.
-
- * create.c (ptw32_start_call): Change pthread_exit() call to
- ptw32_exit() call.
-
- * exit.c (ptw32_vacuum): Add thread entry deletion code
- moved from ptw32_start_call(). See next item.
- (pthread_exit): Remove longjmp(). Add mutex lock around thread table
- manipulation code. This routine now calls _enthreadex().
-
- * create.c (ptw32_start_call): Remove setjmp() call and move
- cleanup code out. Call pthread_exit(NULL) to terminate the thread.
-
-1998-07-26 Ben Elliston <bje@cygnus.com>
-
- * tsd.c (pthread_getspecific): Update comments.
-
- * mutex.c (pthread_mutexattr_setpshared): Not supported; remove.
- (pthread_mutexattr_getpshared): Likewise.
-
- * pthread.h (pthread_mutexattr_setpshared): Remove prototype.
- (pthread_mutexattr_getpshared): Likewise.
-
-Sun Jul 26 00:09:59 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * sync.c: Rename all instances of ptw32_count_mutex to
- ptw32_table_mutex.
-
- * implement.h: Rename ptw32_count_mutex to
- ptw32_table_mutex.
-
- * global.c: Rename ptw32_count_mutex to
- ptw32_table_mutex.
-
- * create.c (pthread_create): Add critical sections.
- (ptw32_start_call): Rename ptw32_count_mutex to
- ptw32_table_mutex.
-
- * cancel.c (pthread_setcancelstate): Fix indirection bug and rename
- "this" to "us".
-
- * signal.c (pthread_sigmask): Rename "this" to "us" and fix some
- minor syntax errors. Declare "us" and initialise it.
-
- * sync.c (pthread_detach): Rename "this" to "target".
-
- * pthread.h: Converting PTHREAD_* defines to alias the (const int)
- values in global.c.
-
- * global.c: Started converting PTHREAD_* defines to (const int) as
- a part of making the eventual pthreads DLL binary compatible
- through version changes.
-
- * condvar.c (cond_wait): Add cancelation point. This applies the
- point to both pthread_cond_wait() and pthread_cond_timedwait().
-
- * exit.c (pthread_exit): Rename "this" to "us".
-
- * implement.h: Add comment.
-
- * sync.c (pthread_join): I've satisfied myself that pthread_detach()
- does set the detached attribute in the thread entry attributes
- to PTHREAD_CREATE_DETACHED. "if" conditions were changed to test
- that attribute instead of a separate flag.
-
- * create.c (pthread_create): Rename "this" to "us".
- (pthread_create): cancelstate and canceltype are not attributes
- so the copy to thread entry attribute storage was removed.
- Only the thread itself can change it's cancelstate or canceltype,
- ie. the thread must exist already.
-
- * private.c (ptw32_delete_thread_entry): Mutex locks removed.
- Mutexes must be applied at the caller level.
- (ptw32_new_thread_entry): Ditto.
- (ptw32_new_thread_entry): Init cancelstate, canceltype, and
- cancel_pending to default values.
- (ptw32_new_thread_entry): Rename "this" to "new".
- (ptw32_find_thread_entry): Rename "this" to "entry".
- (ptw32_delete_thread_entry): Rename "thread_entry" to "entry".
-
- * create.c (ptw32_start_call): Mutexes changed to
- ptw32_count_mutex. All access to the threads table entries is
- under the one mutex. Otherwise chaos reigns.
-
-Sat Jul 25 23:16:51 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * implement.h (ptw32_threads_thread): Move cancelstate and
- canceltype members out of pthread_attr_t into here.
-
- * fork.c (fork): Add comment.
-
-1998-07-25 Ben Elliston <bje@cygnus.com>
-
- * fork.c (fork): Autoconfiscate.
-
-Sat Jul 25 00:00:13 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * create.c (ptw32_start_call): Set thread priority. Ensure our
- thread entry is removed from the thread table but only if
- pthread_detach() was called and there are no waiting joins.
- (pthread_create): Set detach flag in thread entry if the
- thread is created PTHREAD_CREATE_DETACHED.
-
- * pthread.h (pthread_attr_t): Rename member "detachedstate".
-
- * attr.c (pthread_attr_init): Rename attr members.
-
- * exit.c (pthread_exit): Fix indirection mistake.
-
- * implement.h (PTW32_THREADS_TABLE_INDEX): Add.
-
- * exit.c (ptw32_vacuum): Fix incorrect args to
- ptw32_handler_pop_all() calls.
- Make thread entry removal conditional.
-
- * sync.c (pthread_join): Add multiple join and async detach handling.
-
- * implement.h (PTW32_THREADS_TABLE_INDEX): Add.
-
- * global.c (ptw32_threads_mutex_table): Add.
-
- * implement.h (ptw32_once_flag): Remove.
- (ptw32_once_lock): Ditto.
- (ptw32_threads_mutex_table): Add.
-
- * global.c (ptw32_once_flag): Remove.
- (ptw32_once_lock): Ditto.
-
- * sync.c (pthread_join): Fix tests involving new return value
- from ptw32_find_thread_entry().
- (pthread_detach): Ditto.
-
- * private.c (ptw32_find_thread_entry): Failure return code
- changed from -1 to NULL.
-
-Fri Jul 24 23:09:33 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * create.c (pthread_create): Change . to -> in sigmask memcpy() args.
-
- * pthread.h: (pthread_cancel): Add function prototype.
- (pthread_testcancel): Ditto.
-
-1998-07-24 Ben Elliston <bje@cygnus.com>
-
- * pthread.h (pthread_condattr_t): Rename dummy structure member.
- (pthread_mutexattr_t): Likewise.
-
-Fri Jul 24 21:13:55 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * cancel.c (pthread_cancel): Implement.
- (pthread_testcancel): Implement.
-
- * exit.c (pthread_exit): Add comment explaining the longjmp().
-
- * implement.h (ptw32_threads_thread_t): New member cancelthread.
- (PTW32_YES): Define.
- (PTW32_NO): Define.
- (RND_SIZEOF): Remove.
-
- * create.c (pthread_create): Rename cancelability to cancelstate.
-
- * pthread.h (pthread_attr_t): Rename cancelability to cancelstate.
- (PTHREAD_CANCELED): Define.
-
-1998-07-24 Ben Elliston <bje@cygnus.com>
-
- * pthread.h (SIG_BLOCK): Define if not already defined.
- (SIG_UNBLOCK): Likewise.
- (SIG_SETMASK): Likewise.
- (pthread_attr_t): Add signal mask member.
- (pthread_sigmask): Add function prototype.
-
- * signal.c (pthread_sigmask): Implement.
-
- * create.c: #include <string.h> to get a prototype for memcpy().
- (pthread_create): New threads inherit their creator's signal
- mask. Copy the signal mask to the new thread structure if we know
- about signals.
-
-Fri Jul 24 16:33:17 1998 Ross Johnson <rpj@swan.canberra.edu.au>
-
- * fork.c (pthread_atfork): Add all the necessary push calls.
- Local implementation semantics:
- If we get an ENOMEM at any time then ALL handlers
- (including those from previous pthread_atfork() calls) will be
- popped off each of the three atfork stacks before we return.
- (fork): Add all the necessary pop calls. Add the thread cancellation
- and join calls to the child fork.
- Add #includes.
-
- * implement.h: (ptw32_handler_push): Fix return type and stack arg
- type in prototype.
- (ptw32_handler_pop): Fix stack arg type in prototype.
- (ptw32_handler_pop_all): Fix stack arg type in prototype.
-
- * cleanup.c (ptw32_handler_push): Change return type to int and
- return ENOMEM if malloc() fails.
-
- * sync.c (pthread_detach): Use equality test, not assignment.
-
- * create.c (ptw32_start_call): Add call to Win32 CloseHandle()
- if thread is detached.
-
-1998-07-24 Ben Elliston <bje@cygnus.com>
-
- * sync.c (pthread_detach): Close the Win32 thread handle to
- emulate detached (or daemon) threads.
-
-Fri Jul 24 03:00:25 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * sync.c (pthread_join): Save valueptr arg in joinvalueptr for
- pthread_exit() to use.
-
- * private.c (ptw32_new_thread_entry): Initialise joinvalueptr to
- NULL.
-
- * create.c (ptw32_start_call): Rewrite to facilitate joins.
- pthread_exit() will do a longjmp() back to here. Does appropriate
- cleanup and exit/return from the thread.
- (pthread_create): _beginthreadex() now passes a pointer to our
- thread table entry instead of just the call member of that entry.
-
- * implement.h (ptw32_threads_thread): New member
- void ** joinvalueptr.
- (ptw32_call_t): New member jmpbuf env.
-
- * exit.c (pthread_exit): Major rewrite to handle joins and handing
- value pointer to joining thread. Uses longjmp() back to
- ptw32_start_call().
-
- * create.c (pthread_create): Ensure values of new attribute members
- are copied to the thread attribute object.
-
- * attr.c (pthread_attr_destroy): Fix merge conflicts.
- (pthread_attr_getdetachstate): Fix merge conflicts.
- (pthread_attr_setdetachstate): Fix merge conflicts.
-
- * pthread.h: Fix merge conflicts.
-
- * sync.c (pthread_join): Fix merge conflicts.
-
-Fri Jul 24 00:21:21 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * sync.c (pthread_join): Add check for valid and joinable
- thread.
- (pthread_detach): Implement. After checking for a valid and joinable
- thread, it's still a no-op.
-
- * private.c (ptw32_find_thread_entry): Bug prevented returning
- an error value in some cases.
-
- * attr.c (pthread_attr_setdetachedstate): Implement.
- (pthread_attr_getdetachedstate): Implement.
-
- * implement.h: Move more hidden definitions into here from
- pthread.h.
-
-1998-07-24 Ben Elliston <bje@cygnus.com>
-
- * pthread.h (PTHREAD_CREATE_JOINABLE): Define.
- (PTHREAD_CREATE_DETACHED): Likewise.
- (pthread_attr_t): Add new structure member `detached'.
- (pthread_attr_getdetachstate): Add function prototype.
- (pthread_attr_setdetachstate): Likewise.
-
- * sync.c (pthread_join): Return if the target thread is detached.
-
- * attr.c (pthread_attr_init): Initialise cancelability and
- canceltype structure members.
- (pthread_attr_getdetachstate): Implement.
- (pthread_attr_setdetachstate): Likewise.
-
- * implement.h (PTW32_CANCEL_DEFAULTS): Remove. Bit fields
- proved to be too cumbersome. Set the defaults in attr.c using the
- public PTHREAD_CANCEL_* constants.
-
- * cancel.c: New file.
-
- * pthread.h (sched_param): Define this type.
- (pthread_attr_getschedparam): Add function prototype.
- (pthread_attr_setschedparam): Likewise.
- (pthread_setcancelstate): Likewise.
- (pthread_setcanceltype): Likewise.
- (sched_get_priority_min): Likewise.
- (sched_get_priority_max): Likewise.
- (pthread_mutexattr_setprotocol): Remove; not supported.
- (pthread_mutexattr_getprotocol): Likewise.
- (pthread_mutexattr_setprioceiling): Likewise.
- (pthread_mutexattr_getprioceiling): Likewise.
- (pthread_attr_t): Add canceltype member. Update comments.
- (SCHED_OTHER): Define this scheduling policy constant.
- (SCHED_FIFO): Likewise.
- (SCHED_RR): Likewise.
- (SCHED_MIN): Define the lowest possible value for this constant.
- (SCHED_MAX): Likewise, the maximum possible value.
- (PTHREAD_CANCEL_ASYNCHRONOUS): Redefine.
- (PTHREAD_CANCEL_DEFERRED): Likewise.
-
- * sched.c: New file.
- (pthread_setschedparam): Implement.
- (pthread_getschedparam): Implement.
- (sched_get_priority_max): Validate policy argument.
- (sched_get_priority_min): Likewise.
-
- * mutex.c (pthread_mutexattr_setprotocol): Remove; not supported.
- (pthread_mutexattr_getprotocol): Likewise.
- (pthread_mutexattr_setprioceiling): Likewise.
- (pthread_mutexattr_getprioceiling): Likewise.
-
-Fri Jul 24 00:21:21 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * create.c (pthread_create): Arg to ptw32_new_thread_entry()
- changed. See next entry. Move mutex locks out. Changes made yesterday
- and today allow us to start the new thread running rather than
- temporarily suspended.
-
- * private.c (ptw32_new_thread_entry): ptw32_thread_table
- was changed back to a table of thread structures rather than pointers.
- As such we're trading storage for increaded speed. This routine
- was modified to work with the new table. Mutex lock put in around
- global data accesses.
- (ptw32_find_thread_entry): Ditto
- (ptw32_delete_thread_entry): Ditto
-
-Thu Jul 23 23:25:30 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * global.c: New. Global data objects declared here. These moved from
- pthread.h.
-
- * pthread.h: Move implementation hidden definitions into
- implement.h.
-
- * implement.h: Move implementation hidden definitions from
- pthread.h. Add constants to index into the different handler stacks.
-
- * cleanup.c (ptw32_handler_push): Simplify args. Restructure.
- (ptw32_handler_pop): Simplify args. Restructure.
- (ptw32_handler_pop_all): Simplify args. Restructure.
-
-Wed Jul 22 00:16:22 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * attr.c, implement.h, pthread.h, ChangeLog: Resolve CVS merge
- conflicts.
-
- * private.c (ptw32_find_thread_entry): Changes to return type
- to support leaner ptw32_threads_table[] which now only stores
- ptw32_thread_thread_t *.
- (ptw32_new_thread_entry): Internal changes.
- (ptw32_delete_thread_entry): Internal changes to avoid contention.
- Calling routines changed accordingly.
-
- * pthread.h: Modified cleanup macros to use new generic push and pop.
- Added destructor and atfork stacks to ptw32_threads_thread_t.
-
- * cleanup.c (ptw32_handler_push, ptw32_handler_pop,
- ptw32_handler_pop_all): Renamed cleanup push and pop routines
- and made generic to handle destructors and atfork handlers as
- well.
-
- * create.c (ptw32_start_call): New function is a wrapper for
- all new threads. It allows us to do some cleanup when the thread
- returns, ie. that is otherwise only done if the thread is cancelled.
-
- * exit.c (ptw32_vacuum): New function contains code from
- pthread_exit() that we need in the new ptw32_start_call()
- as well.
-
- * implement.h: Various additions and minor changes.
-
- * pthread.h: Various additions and minor changes.
- Change cleanup handler macros to use generic handler push and pop
- functions.
-
- * attr.c: Minor mods to all functions.
- (is_attr): Implemented missing function.
-
- * create.c (pthread_create): More clean up.
-
- * private.c (ptw32_find_thread_entry): Implement.
- (ptw32_delete_thread_entry): Implement.
- (ptw32_new_thread_entry): Implement.
- These functions manipulate the implementations internal thread
- table and are part of general code cleanup and modularisation.
- They replace ptw32_getthreadindex() which was removed.
-
- * exit.c (pthread_exit): Changed to use the new code above.
-
- * pthread.h: Add cancelability constants. Update comments.
-
-1998-07-22 Ben Elliston <bje@cygnus.com>
-
- * attr.c (pthread_setstacksize): Update test of attr argument.
- (pthread_getstacksize): Likewise.
- (pthread_setstackaddr): Likewise.
- (pthread_getstackaddr): Likewise.
- (pthread_attr_init): No need to allocate any storage.
- (pthread_attr_destroy): No need to free any storage.
-
- * mutex.c (is_attr): Not likely to be needed; remove.
- (remove_attr): Likewise.
- (insert_attr): Likewise.
-
- * implement.h (ptw32_mutexattr_t): Moved to a public definition
- in pthread.h. There was little gain in hiding these details.
- (ptw32_condattr_t): Likewise.
- (ptw32_attr_t): Likewise.
-
- * pthread.h (pthread_atfork): Add function prototype.
- (pthread_attr_t): Moved here from implement.h.
-
- * fork.c (pthread_atfork): Preliminary implementation.
- (ptw32_fork): Likewise.
-
-Wed Jul 22 00:16:22 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * cleanup.c (ptw32_cleanup_push): Implement.
- (ptw32_cleanup_pop): Implement.
- (ptw32_do_cancellation): Implement.
- These are private to the implementation. The real cleanup functions
- are macros. See below.
-
- * pthread.h (pthread_cleanup_push): Implement as a macro.
- (pthread_cleanup_pop): Implement as a macro.
- Because these are macros which start and end a block, the POSIX scoping
- requirement is observed. See the comment in the file.
-
- * exit.c (pthread_exit): Refine the code.
-
- * create.c (pthread_create): Code cleanup.
-
- * implement.h (RND_SIZEOF): Add RND_SIZEOF(T) to round sizeof(T)
- up to multiple of DWORD.
- Add function prototypes.
-
- * private.c (ptw32_getthreadindex): "*thread" should have been
- "thread". Detect empty slot fail condition.
-
-1998-07-20 Ben Elliston <bje@cygnus.com>
-
- * misc.c (pthread_once): Implement. Don't use a per-application
- flag and mutex--make `pthread_once_t' contain these elements in
- their structure. The earlier version had incorrect semantics.
-
- * pthread.h (ptw32_once_flag): Add new variable. Remove.
- (ptw32_once_lock): Add new mutex lock to ensure integrity of
- access to ptw32_once_flag. Remove.
- (pthread_once): Add function prototype.
- (pthread_once_t): Define this type.
-
-Mon Jul 20 02:31:05 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * private.c (ptw32_getthreadindex): Implement.
-
- * pthread.h: Add application static data dependent on
- _PTHREADS_BUILD_DLL define. This is needed to avoid allocating
- non-sharable static data within the pthread DLL.
-
- * implement.h: Add ptw32_cleanup_stack_t, ptw32_cleanup_node_t
- and PTW32_HASH_INDEX.
-
- * exit.c (pthread_exit): Begin work on cleanup and de-allocate
- thread-private storage.
-
- * create.c (pthread_create): Add thread to thread table.
- Keep a thread-private copy of the attributes with default values
- filled in when necessary. Same for the cleanup stack. Make
- pthread_create C run-time library friendly by using _beginthreadex()
- instead of CreateThread(). Fix error returns.
-
-Sun Jul 19 16:26:23 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * implement.h: Rename pthreads_thread_count to ptw32_threads_count.
- Create ptw32_threads_thread_t struct to keep thread specific data.
-
- * create.c: Rename pthreads_thread_count to ptw32_threads_count.
- (pthread_create): Handle errors from CreateThread().
-
-1998-07-19 Ben Elliston <bje@cygnus.com>
-
- * condvar.c (pthread_cond_wait): Generalise. Moved from here ..
- (cond_wait): To here.
- (pthread_cond_timedwait): Implement; use generalised cond_wait().
-
- * pthread.h (pthread_key_t): Define this type.
- (pthread_key_create): Add function prototype.
- (pthread_setspecific): Likewise.
- (pthread_getspecific): Likwise.
- (pthread_key_delete): Likewise.
-
- * tsd.c (pthread_key_create): Implement.
- (pthread_setspecific): Likewise.
- (pthread_getspecific): Likewise.
- (pthread_key_delete): Likewise.
-
- * mutex.c (pthread_mutex_trylock): Return ENOSYS if this function
- is called on a Win32 platform which is not Windows NT.
-
-1998-07-18 Ben Elliston <bje@cygnus.com>
-
- * condvar.c (pthread_condattr_init): Do not attempt to malloc any
- storage; none is needed now that condattr_t is an empty struct.
- (pthread_condattr_destory): Likewise; do not free storage.
- (pthread_condattr_setpshared): No longer supported; return ENOSYS.
- (pthread_condattr_getpshared): Likewise.
- (pthread_cond_init): Implement with help from Douglas Schmidt.
- Remember to initialise the cv's internal mutex.
- (pthread_cond_wait): Likewise.
- (pthread_cond_signal): Likewise.
- (pthread_cond_broadcast): Likewise.
- (pthread_cond_timedwait): Preliminary implementation, but I need
- to see some API documentation for `WaitForMultipleObject'.
- (pthread_destory): Implement.
-
- * pthread.h (pthread_cond_init): Add function protoype.
- (pthread_cond_broadcast): Likewise.
- (pthread_cond_signal): Likewise.
- (pthread_cond_timedwait): Likewise.
- (pthread_cond_wait): Likewise.
- (pthread_cond_destroy): Likewise.
- (pthread_cond_t): Define this type. Fix for u_int. Do not assume
- that the mutex contained withing the pthread_cond_t structure will
- be a critical section. Use our new POSIX type!
-
- * implement.h (ptw32_condattr_t): Remove shared attribute.
-
-1998-07-17 Ben Elliston <bje@cygnus.com>
-
- * pthread.h (PTHREADS_PROCESS_PRIVATE): Remove.
- (PTHREAD_PROCESS_SHARED): Likewise. No support for mutexes shared
- across processes for now.
- (pthread_mutex_t): Use a Win32 CRITICAL_SECTION type for better
- performance.
-
- * implement.h (ptw32_mutexattr_t): Remove shared attribute.
-
- * mutex.c (pthread_mutexattr_setpshared): This optional function
- is no longer supported, since we want to implement POSIX mutex
- variables using the much more efficient Win32 critical section
- primitives. Critical section objects in Win32 cannot be shared
- between processes.
- (pthread_mutexattr_getpshared): Likewise.
- (pthread_mutexattr_init): No need to malloc any storage; the
- attributes structure is now empty.
- (pthread_mutexattr_destroy): This is now a nop.
- (pthread_mutex_init): Use InitializeCriticalSection().
- (pthread_mutex_destroy): Use DeleteCriticalSection().
- (pthread_mutex_lock): Use EnterCriticalSection().
- (pthread_mutex_trylock): Use TryEnterCriticalSection(). This is
- not supported by Windows 9x, but trylock is a hack anyway, IMHO.
- (pthread_mutex_unlock): Use LeaveCriticalSection().
-
-1998-07-14 Ben Elliston <bje@cygnus.com>
-
- * attr.c (pthread_attr_setstacksize): Implement.
- (pthread_attr_getstacksize): Likewise.
- (pthread_attr_setstackaddr): Likewise.
- (pthread_attr_getstackaddr): Likewise.
- (pthread_attr_init): Likewise.
- (pthread_attr_destroy): Likewise.
-
- * condvar.c (pthread_condattr_init): Add `_cond' to function name.
-
- * mutex.c (pthread_mutex_lock): Add `_mutex' to function name.
- (pthread_mutex_trylock): Likewise.
- (pthread_mutex_unlock): Likewise.
-
- * pthread.h (pthread_condattr_setpshared): Fix typo.
- (pthread_attr_init): Add function prototype.
- (pthread_attr_destroy): Likewise.
- (pthread_attr_setstacksize): Likewise.
- (pthread_attr_getstacksize): Likewise.
- (pthread_attr_setstackaddr): Likewise.
- (pthread_attr_getstackaddr): Likewise.
-
-Mon Jul 13 01:09:55 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * implement.h: Wrap in #ifndef _IMPLEMENT_H
-
- * create.c (pthread_create): Map stacksize attr to Win32.
-
- * mutex.c: Include implement.h
-
-1998-07-13 Ben Elliston <bje@cygnus.com>
-
- * condvar.c (pthread_condattr_init): Implement.
- (pthread_condattr_destroy): Likewise.
- (pthread_condattr_setpshared): Likewise.
- (pthread_condattr_getpshared): Likewise.
-
- * implement.h (PTHREAD_THREADS_MAX): Remove trailing semicolon.
- (PTHREAD_STACK_MIN): Specify; needs confirming.
- (ptw32_attr_t): Define this type.
- (ptw32_condattr_t): Likewise.
-
- * pthread.h (pthread_mutex_t): Define this type.
- (pthread_condattr_t): Likewise.
- (pthread_mutex_destroy): Add function prototype.
- (pthread_lock): Likewise.
- (pthread_trylock): Likewise.
- (pthread_unlock): Likewise.
- (pthread_condattr_init): Likewise.
- (pthread_condattr_destroy): Likewise.
- (pthread_condattr_setpshared): Likewise.
- (pthread_condattr_getpshared): Likewise.
-
- * mutex.c (pthread_mutex_init): Implement.
- (pthread_mutex_destroy): Likewise.
- (pthread_lock): Likewise.
- (pthread_trylock): Likewise.
- (pthread_unlock): Likewise.
-
-1998-07-12 Ben Elliston <bje@cygnus.com>
-
- * implement.h (ptw32_mutexattr_t): Define this implementation
- internal type. Application programmers only see a mutex attribute
- object as a void pointer.
-
- * pthread.h (pthread_mutexattr_t): Define this type.
- (pthread_mutexattr_init): Add function prototype.
- (pthread_mutexattr_destroy): Likewise.
- (pthread_mutexattr_setpshared): Likewise.
- (pthread_mutexattr_getpshared): Likewise.
- (pthread_mutexattr_setprotocol): Likewise.
- (pthread_mutexattr_getprotocol): Likewise.
- (pthread_mutexattr_setprioceiling): Likewise.
- (pthread_mutexattr_getprioceiling): Likewise.
- (PTHREAD_PROCESS_PRIVATE): Define.
- (PTHREAD_PROCESS_SHARED): Define.
-
- * mutex.c (pthread_mutexattr_init): Implement.
- (pthread_mutexattr_destroy): Implement.
- (pthread_mutexattr_setprotocol): Implement.
- (pthread_mutexattr_getprotocol): Likewise.
- (pthread_mutexattr_setprioceiling): Likewise.
- (pthread_mutexattr_getprioceiling): Likewise.
- (pthread_mutexattr_setpshared): Likewise.
- (pthread_mutexattr_getpshared): Likewise.
- (insert_attr): New function; very preliminary implementation!
- (is_attr): Likewise.
- (remove_attr): Likewise.
-
-Sat Jul 11 14:48:54 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * implement.h: Preliminary implementation specific defines.
-
- * create.c (pthread_create): Preliminary implementation.
-
-1998-07-11 Ben Elliston <bje@cygnus.com>
-
- * sync.c (pthread_join): Implement.
-
- * misc.c (pthread_equal): Likewise.
-
- * pthread.h (pthread_join): Add function prototype.
- (pthread_equal): Likewise.
-
-1998-07-10 Ben Elliston <bje@cygnus.com>
-
- * misc.c (pthread_self): Implement.
-
- * exit.c (pthread_exit): Implement.
-
- * pthread.h (pthread_exit): Add function prototype.
- (pthread_self): Likewise.
- (pthread_t): Define this type.
-
-1998-07-09 Ben Elliston <bje@cygnus.com>
-
- * create.c (pthread_create): A dummy stub right now.
-
- * pthread.h (pthread_create): Add function prototype.
+2001-06-25 Ross Johnson <rpj@setup1.ise.canberra.edu.au> + + * create.c (pthread_create): Add priority inheritance + attributes. + * mutex.c (pthread_mutex_lock): Remove some overhead for + PTHREAD_MUTEX_NORMAL mutex types. Specifically, avoid + calling pthread_self() and pthread_equal() to check/set + the mutex owner. Introduce a new pseudo owner for this + type. Test results suggest increases in speed of up to + 90% for non-blocking locks. + This is the default type of mutex used internally by other + synchronising objects, ie. condition variables and + read-write locks. The test rwlock7.c shows about a + 30-35% speed increase over snapshot 2001-06-06. The + price of this is that the application developer + must ensure correct behaviour, or explicitly set the + mutex to a safer type such as PTHREAD_MUTEX_ERRORCHECK. + For example, PTHREAD_MUTEX_NORMAL (or PTHREAD_MUTEX_DEFAULT) + type mutexes will not return an error if a thread which is not + the owner calls pthread_mutex_unlock. The call will succeed + in unlocking the mutex if it is currently locked, but a + subsequent unlock by the true owner will then fail with EPERM. + This is however consistent with some other implementations. + (pthread_mutex_unlock): Likewise. + (pthread_mutex_trylock): Likewise. + (pthread_mutex_destroy): Likewise. + * attr.c (pthread_attr_init): PTHREAD_EXPLICIT_SCHED is the + default inheritance attribute; THREAD_PRIORITY_NORMAL is + the default priority for new threads. + * sched.c (pthread_attr_setschedpolicy): Added routine. + (pthread_attr_getschedpolicy): Added routine. + (pthread_attr_setinheritsched): Added routine. + (pthread_attr_getinheritsched): Added routine. + * pthread.h (sched_rr_set_interval): Added as a macro; + returns -1 with errno set to ENOSYS. + +2001-06-23 Ross Johnson <rpj@setup1.ise.canberra.edu.au> + + *sched.c (pthread_attr_setschedparam): Add priority range + check. + (sched_setscheduler): New function; checks for a valid + pid and policy; checks for permission to set information + in the target process; expects pid to be a Win32 process ID, + not a process handle; the only scheduler policy allowed is + SCHED_OTHER. + (sched_getscheduler): Likewise, but checks for permission + to query. + * pthread.h (SCHED_*): Moved to sched.h as defined in the + POSIX standard. + * sched.h (SCHED_*): Moved from pthread.h. + (pid_t): Defined if necessary. + (sched_setscheduler): Defined. + (sched_getscheduler): Defined. + * pthread.def (sched_setscheduler): Exported. + (sched_getscheduler): Likewise. + +2001-06-23 Ross Johnson <rpj@setup1.ise.canberra.edu.au> + + Contributed by - Ralf Brese <Ralf.Brese@pdb4.siemens.de> + + * create.c (pthread_create): Set thread priority from + thread attributes. + +2001-06-18 Ross Johnson <rpj@setup1.ise.canberra.edu.au> + + * Made organisational-only changes to UWIN additions. + * dll.c (dllMain): Moved UWIN process attach code + to pthread_win32_process_attach_np(); moved + instance of pthread_count to global.c. + * global.c (pthread_count): Moved from dll.c. + * nonportable.c (pthread_win32_process_attach_np): + Moved _UWIN code to here from dll.c. + * implement.h (pthread_count): Define extern int. + * create.c (pthread_count): Remove extern int. + * private.c (pthread_count): Likewise. + * exit.c (pthread_count): Likewise. + +2001-06-18 Ross Johnson <rpj@setup1.ise.canberra.edu.au> + + Contributed by - David Korn <dgk@research.att.com> + + * dll.c: Added changes necessary to work with UWIN. + * create.c: Likewise. + * pthread.h: Likewise. + * misc.c: Likewise. + * exit.c: Likewise. + * private.c: Likewise. + * implement.h: Likewise. + There is some room at the start of struct pthread_t_ + to implement the signal semantics in UWIN's posix.dll + although this is not yet complete. + * Nmakefile: Compatible with UWIN's Nmake utility. + * Nmakefile.tests: Likewise - for running the tests. + +2001-06-08 Ross Johnson <rpj@setup1.ise.canberra.edu.au> + + * semaphore.h (sem_t): Fixed for compile and test. + * implement.h (sem_t_): Likewise. + * semaphore.c: Likewise. + * private.c (ptw32_sem_timedwait): Updated to use new + opaque sem_t. + +2001-06-06 Ross Johnson <rpj@setup1.ise.canberra.edu.au> + + * semaphore.h (sem_t): Is now an opaque pointer; + moved actual definition to implement.h. + * implement.h (sem_t_): Move here from semaphore.h; + was the definition of sem_t. + * semaphore.c: Wherever necessary, changed use of sem + from that of a pointer to a pointer-pointer; added + extra checks for a valid sem_t; NULL sem_t when + it is destroyed; added extra checks when creating + and destroying sem_t elements in the NEED_SEM + code branches; changed from using a pthread_mutex_t + ((*sem)->mutex) to CRITICAL_SECTION ((*sem)->sem_lock_cs) + in NEED_SEM branches for access serialisation. + +2001-06-06 Ross Johnson <rpj@setup1.ise.canberra.edu.au> + + * mutex.c (pthread_mutexattr_init): Remove + ptw32_mutex_default_kind. + +2001-06-05 Ross Johnson <rpj@setup1.ise.canberra.edu.au> + + * nonportable.c (pthread_mutex_setdefaultkind_np): + Remove - should not have been included in the first place. + (pthread_mutex_getdefaultkind_np): Likewise. + * global.c (ptw32_mutex_default_kind): Likewise. + * mutex.c (pthread_mutex_init): Remove use of + ptw32_mutex_default_kind. + * pthread.h (pthread_mutex_setdefaultkind_np): Likewise. + (pthread_mutex_getdefaultkind_np): Likewise. + * pthread.def (pthread_mutexattr_setkind_np): Added. + (pthread_mutexattr_getkind_np): Likewise. + + * README: Many changes that should have gone in before + the last snapshot. + * README.NONPORTABLE: New - referred to by ANNOUNCE + but never created; documents the non-portable routines + included in the library - moved from README with new + routines added. + * ANNOUNCE (pthread_mutexattr_setkind_np): Added to + compliance list. + (pthread_mutexattr_getkind_np): Likewise. + +2001-06-04 Ross Johnson <rpj@setup1.ise.canberra.edu.au> + + * condvar.c: Add original description of the algorithm as + developed by Terekhov and Thomas, plus reference to + README.CV. + +2001-06-03 Ross Johnson <rpj@setup1.ise.canberra.edu.au> + + Contributed by - Alexander Terekhov <TEREKHOV@de.ibm.com> + - Louis Thomas <lthomas@arbitrade.com> + + * condvar.c (pthread_cond_init): Completely revamped. + (pthread_cond_destroy): Likewise. + (ptw32_cond_wait_cleanup): Likewise. + (ptw32_cond_timedwait): Likewise. + (ptw32_cond_unblock): New general signaling routine. + (pthread_cond_signal): Now calls ptw32_cond_unblock. + (pthread_cond_broadcast): Likewise. + * implement.h (pthread_cond_t_): Revamped. + * README.CV: New; explanation of the above changes. + +2001-05-30 Ross Johnson <rpj@setup1.ise.canberra.edu.au> + + * pthread.h (rand_r): Fake using _seed argument to quell + compiler warning (compiler should optimise this away later). + + * GNUmakefile (OPT): Leave symbolic information out of the library + and increase optimisation level - for smaller faster prebuilt + dlls. + +2001-05-29 Ross Johnson <rpj@setup1.ise.canberra.edu.au> + + Contributed by - Milan Gardian <Milan.Gardian@LEIBINGER.com> + + * Makefile: fix typo. + * pthreads.h: Fix problems with stdcall/cdecl conventions, in particular + remove the need for PT_STDCALL everywhere; remove warning supression. + * (errno): Fix the longstanding "inconsistent dll linkage" problem + with errno; now also works with /MD debugging libs - + warnings emerged when compiling pthreads library with /MD (or /MDd) + compiler switch, instead of /MT (or /MTd) (i.e. when compiling pthreads + using Multithreaded DLL CRT instead of Multithreaded statically linked + CRT). + * create.c (pthread_create): Likewise; fix typo. + * private.c (ptw32_threadStart): Eliminate use of terminate() which doesn't + throw exceptions. + * Remove unnecessary #includes from a number of modules - + [I had to #include malloc.h in implement.h for gcc - rpj]. + +2001-05-29 Ross Johnson <rpj@setup1.ise.canberra.edu.au> + + Contributed by - Thomas Pfaff <tpfaff@gmx.net> + + * pthread.h (PTHREAD_MUTEX_DEFAULT): New; equivalent to + PTHREAD_MUTEX_DEFAULT_NP. + * (PTHREAD_MUTEX_NORMAL): Similarly. + * (PTHREAD_MUTEX_ERRORCHECK): Similarly. + * (PTHREAD_MUTEX_RECURSIVE): Similarly. + * (pthread_mutex_setdefaultkind_np): New; Linux compatibility stub + for pthread_mutexattr_settype. + * (pthread_mutexattr_getkind_np): New; Linux compatibility stub + for pthread_mutexattr_gettype. + * mutex.c (pthread_mutexattr_settype): New; allow + the following types of mutex: + PTHREAD_MUTEX_DEFAULT_NP + PTHREAD_MUTEX_NORMAL_NP + PTHREAD_MUTEX_ERRORCHECK_NP + PTHREAD_MUTEX_RECURSIVE_NP + * Note that PTHREAD_MUTEX_DEFAULT is equivalent to + PTHREAD_MUTEX_NORMAL - ie. mutexes should no longer + be recursive by default, and a thread will deadlock if it + tries to relock a mutex it already owns. This is inline with + other pthreads implementations. + * (pthread_mutex_lock): Process the lock request + according to the mutex type. + * (pthread_mutex_init): Eliminate use of Win32 mutexes as the + basis of POSIX mutexes - instead, a combination of one critical section + and one semaphore are used in conjunction with Win32 Interlocked* routines. + * (pthread_mutex_destroy): Likewise. + * (pthread_mutex_lock): Likewise. + * (pthread_mutex_trylock): Likewise. + * (pthread_mutex_unlock): Likewise. + * Use longjmp/setjmp to implement cancelation when building the library + using a C compiler which doesn't support exceptions, e.g. gcc -x c (note + that gcc -x c++ uses exceptions). + * Also fixed some of the same typos and eliminated PT_STDCALL as + Milan Gardian's patches above. + +2001-02-07 Ross Johnson <rpj@special.ise.canberra.edu.au> + + Contributed by - Alexander Terekhov <TEREKHOV@de.ibm.com> + + * rwlock.c: Revamped. + * implement.h (pthread_rwlock_t_): Redefined. + This implementation does not have reader/writer starvation problem. + Rwlock attempts to behave more like a normal mutex with + races and scheduling policy determining who is more important; + It also supports recursive locking, + has less synchronization overhead (no broadcasts at all, + readers are not blocked on any condition variable) and seem to + be faster than the current implementation [W98 appears to be + approximately 15 percent faster at least - on top of speed increase + from Thomas Pfaff's changes to mutex.c - rpj]. + +2000-12-29 Ross Johnson <rpj@special.ise.canberra.edu.au> + + * Makefile: Back-out "for" loops which don't work. + + * GNUmakefile: Remove the fake.a target; add the "realclean" + target; don't remove built libs under the "clean" target. + + * config.h: Add a guard against multiple inclusion. + + * semaphore.h: Add some defines from config.h to make + semaphore.h independent of config.h when building apps. + + * pthread.h (_errno): Back-out previous fix until we know how to + fix it properly. + + * implement.h (lockCount): Add missing element to pthread_mutex_t_. + + * sync.c (pthread_join): Spelling fix in comment. + + * private.c (ptw32_threadStart): Reset original termination + function (C++). + (ptw32_threadStart): Cleanup detached threads early in case + the library is statically linked. + (ptw32_callUserDestroyRoutines): Remove [SEH] __try block from + destructor call so that unhandled exceptions will be passed through + to the system; call terminate() from [C++] try block for the same + reason. + + * tsd.c (pthread_getspecific): Add comment. + + * mutex.c (pthread_mutex_init): Initialise new elements in + pthread_mutex_t. + (pthread_mutex_unlock): Invert "pthread_equal()" test. + +2000-12-28 Ross Johnson <rpj@special.ise.canberra.edu.au> + + * semaphore.c (mode_t): Use ifndef HAVE_MODE_T to include definition. + + * config.h.in (HAVE_MODE_T): Added. + (_UWIN): Start adding defines for the UWIN package. + + * private.c (ptw32_threadStart): Unhandled exceptions are + now passed through to the system to deal with. This is consistent + with normal Windows behaviour. C++ applications may use + set_terminate() to override the default behaviour which is + to call ptw32_terminate(). Ptw32_terminate() cleans up some + POSIX thread stuff before calling the system default function + which calls abort(). The users termination function should conform + to standard C++ semantics which is to not return. It should + exit the thread (call pthread_exit()) or exit the application. + * private.c (ptw32_terminate): Added as the default set_terminate() + function. It calls the system default function after cleaning up + some POSIX thread stuff. + + * implement.h (ptw32_try_enter_critical_section): Move + declaration. + * global.c (ptw32_try_enter_critical_section): Moved + from dll.c. + * dll.c: Move process and thread attach/detach code into + functions in nonportable.c. + * nonportable.c (pthread_win32_process_attach_np): Process + attach code from dll.c is now available to static linked + applications. + * nonportable.c (pthread_win32_process_detach_np): Likewise. + * nonportable.c (pthread_win32_thread_attach_np): Likewise. + * nonportable.c (pthread_win32_thread_detach_np): Likewise. + + * pthread.h: Add new non-portable prototypes for static + linked applications. + + * GNUmakefile (OPT): Increase optimisation flag and remove + debug info flag. + + * pthread.def: Add new non-portable exports for static + linked applications. + +2000-12-11 Ross Johnson <rpj@special.ise.canberra.edu.au> + + * FAQ: Update Answer 6 re getting a fully working + Mingw32 built library. + +2000-10-10 Ross Johnson <rpj@setup1.ise.canberra.edu.au> + + * misc.c (pthread_self): Restore Win32 "last error" + cleared by TlsGetValue() call in + pthread_getspecific() + - "Steven Reddie" <smr@essemer.com.au> + +2000-09-20 Ross Johnson <rpj@setup1.ise.canberra.edu.au> + + * mutex.c (pthread_mutex_lock): Record the owner + of the mutex. This requires also keeping count of + recursive locks ourselves rather than leaving it + to Win32 since we need to know when to NULL the + thread owner when the mutex is unlocked. + (pthread_mutex_trylock): Likewise. + (pthread_mutex_unlock): Check that the calling + thread owns the mutex, decrement the recursive + lock count, and NULL the owner if zero. Return + EPERM if the mutex is owned by another thread. + * implement.h (pthread_mutex_t_): Add ownerThread + and lockCount members. + - reported by Arthur Kantor <akantor@bexusa.com> + +2000-09-13 Ross Johnson <rpj@setup1.ise.canberra.edu.au> + + * mutex.c (pthread_mutex_init): Call + TryEnterCriticalSection through the pointer + rather than directly so that the dll can load + on Windows versions that can't resolve the + function, eg. Windows 95 + - "Jef Gearhart" <jgearhart@tpssys.com> + +2000-09-09 Ross Johnson <rpj@special.ise.canberra.edu.au> + + * pthread.h (ctime_r): Fix arg. + +2000-09-08 Ross Johnson <rpj@special.ise.canberra.edu.au> + + * GNUmakefile(_WIN32_WINNT=0x400): Define in CFLAGS; + doesn't seem to be needed though. + + * cancel.c (pthread_cancel): Must get "self" through + calling pthread_self() which will ensure a POSIX thread + struct is built for non-POSIX threads; return an error + if this fails + - Ollie Leahy <ollie@mpt.ie> + (pthread_setcancelstate): Likewise. + (pthread_setcanceltype): Likewise. + * misc.c (ptw32_cancelable_wait): Likewise. + + * private.c (ptw32_tkAssocCreate): Remove unused #if 0 + wrapped code. + + * pthread.h (ptw32_get_exception_services_code): + Needed to be forward declared unconditionally. + +2000-09-06 Ross Johnson <rpj@special.ise.canberra.edu.au> + + * cancel.c (pthread_cancel): If called from the main + thread "self" would be NULL; get "self" via pthread_self() + instead of directly from TLS so that an implicit + pthread object is created. + + * misc.c (pthread_equal): Strengthen test for NULLs. + +2000-09-02 Ross Johnson <rpj@special.ise.canberra.edu.au> + + * condvar.c (ptw32_cond_wait_cleanup): Ensure that all + waking threads check if they are the last, and notify + the broadcaster if so - even if an error occurs in the + waiter. + + * semaphore.c (_decrease_semaphore): Should be + a call to ptw32_decrease_semaphore. + (_increase_semaphore): Should be a call to + ptw32_increase_semaphore. + + * misc.c (ptw32_cancelable_wait): Renamed from + CancelableWait. + * rwlock.c (_rwlock_check*): Renamed to + ptw32_rwlock_check*. + * mutex.c (_mutex_check*): Renamed to ptw32_mutex_check*. + * condvar.c (cond_timed*): Renamed to ptw32_cond_timed*. + (_cond_check*): Renamed to ptw32_cond_check*. + (cond_wait_cleanup*): Rename to ptw32_cond_wait_cleanup*. + (ptw32_cond_timedwait): Add comments. + +2000-08-22 Ross Johnson <rpj@setup1.ise.canberra.edu.au> + + * private.c (ptw32_throw): Fix exception test; + move exceptionInformation declaration. + + * tsd.c (pthread_key_create): newkey wrongly declared. + + * pthread.h: Fix comment block. + +2000-08-18 Ross Johnson <rpj@setup1.ise.canberra.edu.au> + + * mutex.c (pthread_mutex_destroy): Check that the mutex isn't + held; invalidate the mutex as early as possible to avoid + contention; not perfect - FIXME! + + * rwlock.c (pthread_rwlock_init): Remove redundant assignment + to "rw". + (pthread_rwlock_destroy): Invalidate the rwlock before + freeing up any of it's resources - to avoid contention. + + * private.c (ptw32_tkAssocCreate): Change assoc->lock + to use a dynamically initialised mutex - only consumes + a W32 mutex or critical section when first used, + not before. + + * mutex.c (pthread_mutex_init): Remove redundant assignment + to "mx". + (pthread_mutexattr_destroy): Set attribute to NULL + before freeing it's memory - to avoid contention. + + * implement.h (PTW32_EPS_CANCEL/PTW32_EPS_EXIT): + Must be defined for all compilers - used as generic + exception selectors by ptw32_throw(). + + * Several: Fix typos from scripted edit session + yesterday. + + * nonportable.c (pthread_mutexattr_setforcecs_np): + Moved this function from mutex.c. + (pthread_getw32threadhandle_np): New function to + return the win32 thread handle that the POSIX + thread is using. + * mutex.c (pthread_mutexattr_setforcecs_np): + Moved to new file "nonportable.c". + + * pthread.h (PTW32_BUILD): Only redefine __except + and catch compiler keywords if we aren't building + the library (ie. PTW32_BUILD is not defined) - + this is safer than defining and then undefining + if not building the library. + * implement.h: Remove __except and catch undefines. + * Makefile (CFLAGS): Define PTW32_BUILD. + * GNUmakefile (CFLAGS): Define PTW32_BUILD. + + * All appropriate: Change Pthread_exception* to + ptw32_exception* to be consistent with internal + identifier naming. + + * private.c (ptw32_throw): New function to provide + a generic exception throw for all internal + exceptions and EH schemes. + (ptw32_threadStart): pthread_exit() value is now + returned via the thread structure exitStatus + element. + * exit.c (pthread_exit): pthread_exit() value is now + returned via the thread structure exitStatus + element. + * cancel.c (ptw32_cancel_self): Now uses ptw32_throw. + (pthread_setcancelstate): Ditto. + (pthread_setcanceltype): Ditto. + (pthread_testcancel): Ditto. + (pthread_cancel): Ditto. + * misc.c (CancelableWait): Ditto. + * exit.c (pthread_exit): Ditto. + * All applicable: Change PTW32_ prefix to + PTW32_ prefix to remove leading underscores + from private library identifiers. + +2000-08-17 Ross Johnson <rpj@special.ise.canberra.edu.au> + + * All applicable: Change _pthread_ prefix to + ptw32_ prefix to remove leading underscores + from private library identifiers (single + and double leading underscores are reserved in the + ANSI C standard for compiler implementations). + + * tsd.c (pthread_create_key): Initialise temporary + key before returning it's address to avoid race + conditions. + +2000-08-13 Ross Johnson <rpj@special.ise.canberra.edu.au> + + * errno.c: Add _MD precompile condition; thus far + had no effect when using /MD compile option but I + thnk it should be there. + + * exit.c: Add __cplusplus to various #if lines; + was compiling SEH code even when VC++ had + C++ compile options. + + * private.c: ditto. + + * create.c (pthread_create): Add PT_STDCALL macro to + function pointer arg in _beginthread(). + + * pthread.h: PT_STDCALL really does need to be defined + in both this and impliment.h; don't set it to __cdecl + - this macro is only used to extend function pointer + casting for functions that will be passed as parameters. + (~PThreadCleanup): add cast and group expression. + (_errno): Add _MD compile conditional. + (PtW32NoCatchWarn): Change pragma message. + + * implement.h: Move and change PT_STDCALL define. + + * need_errno.h: Add _MD to compilation conditional. + + * GNUmakefile: Substantial rewrite for new naming + convention; set for nil optimisation (turn it up + when we have a working library build; add target + "fake.a" to build a libpthreadw32.a from the VC++ + built DLL pthreadVCE.dll. + + * pthread.def (LIBRARY): Don't specify in the .def + file - it is specified on the linker command line + since we now use the same .def file for variously + named .dlls. + + * Makefile: Substantial rewrite for new naming + convention; default nmake target only issues a + help message; run nmake with specific target + corresponding to the EH scheme being used. + + * README: Update information; add naming convention + explanation. + + * ANNOUNCE: Update information. + +2000-08-12 Ross Johnson <rpj@special.ise.canberra.edu.au> + + * pthread.h: Add compile-time message when using + MSC_VER compiler and C++ EH to warn application + programmers to use PtW32Catch instead of catch(...) + if they want cancelation and pthread_exit to work. + + * implement.h: Remove #include <semaphore.h>; we + use our own local semaphore.h. + +2000-08-10 Ross Johnson <rpj@special.ise.canberra.edu.au> + + * cleanup.c (pthread_pop_cleanup): Remove _pthread + prefix from __except and catch keywords; implement.h + now simply undefines ptw32__except and + ptw32_catch if defined; VC++ was not textually + substituting ptw32_catch etc back to catch as + it was redefined; the reason for using the prefixed + version was to make it clear that it was not using + the pthread.h redefined catch keyword. + + * private.c (ptw32_threadStart): Ditto. + (ptw32_callUserDestroyRoutines): Ditto. + + * implement.h (ptw32__except): Remove #define. + (ptw32_catch): Remove #define. + + * GNUmakefile (pthread.a): New target to build + libpthread32.a from pthread.dll using dlltool. + + * buildlib.bat: Duplicate cl commands with args to + build C++ EH version of pthread.dll; use of .bat + files is redundant now that nmake compatible + Makefile is included; used as a kludge only now. + + * Makefile: Localise some macros and fix up the clean: + target to extend it and work properly. + + * CONTRIBUTORS: Add contributors. + + * ANNOUNCE: Updated. + + * README: Updated. + +2000-08-06 Ross Johnson <rpj@special.ise.canberra.edu.au> + + * pthread.h: Remove #warning - VC++ doesn't accept it. + +2000-08-05 Ross Johnson <rpj@special.ise.canberra.edu.au> + + * pthread.h (PtW32CatchAll): Add macro. When compiling + applications using VC++ with C++ EH rather than SEH + 'PtW32CatchAll' must be used in place of any 'catch( ... )' + if the application wants pthread cancelation or + pthread_exit() to work. + +2000-08-03 Ross Johnson <rpj@special.ise.canberra.edu.au> + + * pthread.h: Add a base class ptw32_exception for + library internal exceptions and change the "catch" + re-define macro to use it. + +2000-08-02 Ross Johnson <rpj@special.ise.canberra.edu.au> + + * GNUmakefile (CFLAGS): Add -mthreads. + Add new targets to generate cpp and asm output. + + * sync.c (pthread_join): Remove dead code. + +2000-07-25 Ross Johnson <rpj@special.ise.canberra.edu.au> + + * sched.c (sched_get_priority_max): Handle different WinCE and + Win32 priority values together. + (sched_get_priority_min): Ditto. + - Tristan Savatier <tristan@mpegtv.com> + + * create.c (pthread_create): Force new threads to wait until + pthread_create has the new thread's handle; we also retain + a local copy of the handle for internal use until + pthread_create returns. + + * private.c (ptw32_threadStart): Initialise ei[]. + (ptw32_threadStart): When beginthread is used to start the + thread, force waiting until the creator thread had the + thread handle. + + * cancel.c (ptw32_cancel_thread): Include context switch + code for defined(_X86_) environments in addition to _M_IX86. + + * rwlock.c (pthread_rwlock_destroy): Assignment changed + to avoid compiler warning. + + * private.c (ptw32_get_exception_services_code): Cast + NULL return value to avoid compiler warning. + + * cleanup.c (pthread_pop_cleanup): Initialise "cleanup" variable + to avoid compiler warnings. + + * misc.c (ptw32_new): Change "new" variable to "t" to avoid + confusion with the C++ keyword of the same name. + + * condvar.c (cond_wait_cleanup): Initialise lastWaiter variable. + (cond_timedwait): Remove unused local variables. to avoid + compiler warnings. + + * dll.c (dllMain): Remove 2000-07-21 change - problem + appears to be in pthread_create(). + +2000-07-22 Ross Johnson <rpj@special.ise.canberra.edu.au> + + * tsd.c (pthread_key_create): If a destructor was given + and the pthread_mutex_init failed, then would try to + reference a NULL pointer (*key); eliminate this section of + code by using a dynamically initialised mutex + (PTHREAD_MUTEX_INITIALIZER). + + * tsd.c (pthread_setspecific): Return an error if + unable to set the value; simplify cryptic conditional. + + * tsd.c (pthread_key_delete): Locking threadsLock relied + on mutex_lock returning an error if the key has no destructor. + ThreadsLock is only initialised if the key has a destructor. + Making this mutex a static could reduce the number of mutexes + used by an application since it is actually created only at + first use and it's often destroyed soon after. + +2000-07-22 Ross Johnson <rpj@special.ise.canberra.edu.au> + + * FAQ: Added Q5 and Q6. + +2000-07-21 Ross Johnson <rpj@setup1.ise.canberra.edu.au> + + * create.c (pthread_create): Set threadH to 0 (zero) + everywhere. Some assignments were using NULL. Maybe + it should be NULL everywhere - need to check. (I know + they are nearly always the same thing - but not by + definition.) + + * dll.c: Include resource leakage work-around. This is a + partial FIXME which doesn't stop all leakage. The real + problem needs to be found and fixed. + - "David Baggett" <dmb@itasoftware.com> + + * misc.c (pthread_self): Try to catch NULL thread handles + at the point where they might be generated, even though + they should always be valid at this point. + + * tsd.c (pthread_setspecific): return an error value if + pthread_self() returns NULL. + + * sync.c (pthread_join): return an error value if + pthread_self() returns NULL. + + * signal.c (pthread_sigmask): return an error value if + pthread_self() returns NULL. + +2000-03-02 Ross Johnson <rpj@special.ise.canberra.edu.au> + + * attr.c (pthread_attr_init): Set default stacksize to zero (0) + rather than PTHREAD_STACK_MIN even though these are now the same. + + * pthread.h (PTHREAD_STACK_MIN): Lowered to 0. + +2000-01-28 Ross Johnson <rpj@special.ise.canberra.edu.au> + + * mutex.c (pthread_mutex_init): Free mutex if it has been alloced; + if critical sections can be used instead of Win32 mutexes, test + that the critical section works and return an error if not. + +2000-01-07 Ross Johnson <rpj@special.ise.canberra.edu.au> + + * cleanup.c (pthread_pop_cleanup): Include SEH code only if MSC is not + compiling as C++. + (pthread_push_cleanup): Include SEH code only if MSC is not + compiling as C++. + + * pthread.h: Include SEH code only if MSC is not + compiling as C++. + + * implement.h: Include SEH code only if MSC is not + compiling as C++. + + * cancel.c (ptw32_cancel_thread): Add _M_IX86 check. + (pthread_testcancel): Include SEH code only if MSC is not + compiling as C++. + (ptw32_cancel_self): Include SEH code only if MSC is not + compiling as C++. + +2000-01-06 Ross Johnson <rpj@special.ise.canberra.edu.au> + + * Makefile: Remove inconsistencies in 'cl' args + - Erik Hensema <erik.hensema@group2000.nl> + +2000-01-04 Ross Johnson <rpj@special.ise.canberra.edu.au> + + * private.c (ptw32_get_exception_services_code): New; returns + value of EXCEPTION_PTW32_SERVICES. + (ptw32_processInitialize): Remove initialisation of + ptw32_exception_services which is no longer needed. + + * pthread.h (ptw32_exception_services): Remove extern. + (ptw32_get_exception_services_code): Add function prototype; + use this to return EXCEPTION_PTW32_SERVICES value instead of + using the ptw32_exception_services variable which I had + trouble exporting through pthread.def. + + * global.c (ptw32_exception_services): Remove declaration. + +1999-11-22 Ross Johnson <rpj@special.ise.canberra.edu.au> + + * implement.h: Forward declare ptw32_new(); + + * misc.c (ptw32_new): New; alloc and initialise a new pthread_t. + (pthread_self): New thread struct is generated by new routine + ptw32_new(). + + * create.c (pthread_create): New thread struct is generated + by new routine ptw32_new(). + +1999-11-21 Ross Johnson <rpj@special.ise.canberra.edu.au> + + * global.c (ptw32_exception_services): Declare new variable. + + * private.c (ptw32_threadStart): Destroy thread's + cancelLock mutex; make 'catch' and '__except' usageimmune to + redfinitions in pthread.h. + (ptw32_processInitialize): Init new constant ptw32_exception_services. + + * create.c (pthread_create): Initialise thread's cancelLock + mutex. + + * cleanup.c (pthread_pop_cleanup): Make 'catch' and '__except' + usage immune to redfinition s in pthread.h. + + * private.c: Ditto. + + * pthread.h (catch): Redefine 'catch' so that C++ applications + won't catch our internal exceptions. + (__except): ditto for __except. + + * implement.h (ptw32_catch): Define internal version + of 'catch' because 'catch' is redefined by pthread.h. + (__except): ditto for __except. + (struct pthread_t_): Add cancelLock mutex for async cancel + safety. + + * cancel.c (ptw32_cancel_self): New; part of the async + cancellation implementation. + (ptw32_cancel_thread): Ditto; this function is X86 + processor specific. + (pthread_setcancelstate): Add check for pending async + cancel request and cancel the calling thread if + required; add async-cancel safety lock. + (pthread_setcanceltype): Ditto. + - Jason Nye <jnye@nbnet.nb.ca> + - Erik Hensema <erik.hensema@group2000.nl> + +1999-11-13 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * configure.in (AC_OUTPUT): Put generated output into GNUmakefile + rather than Makefile. Makefile will become the MSC nmake compatible + version + - Erik Hensema <erik.hensema@group2000.nl> + + * misc.c (pthread_self): Add a note about GetCurrentThread + returning a pseudo-handle + - John Bossom (John.Bossom@cognos.com> + +1999-11-10 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * dll.c (dllMain): Free kernel32 ASAP. + If TryEnterCriticalSection is not being used, then free + the kernel32.dll handle now, rather than leaving it until + DLL_PROCESS_DETACH. + + Note: this is not a pedantic exercise in freeing unused + resources! It is a work-around for a bug in Windows 95 + (see microsoft knowledge base article, Q187684) which + does Bad Things when FreeLibrary is called within + the DLL_PROCESS_DETACH code, in certain situations. + Since w95 just happens to be a platform which does not + provide TryEnterCriticalSection, the bug will be + effortlessly avoided. + - Todd Owen <towen@lucidcalm.dropbear.id.au> + + * sync.c (pthread_join): Make it a deferred cancelation point. + + * misc.c (pthread_self): Explicitly initialise implicitly + created thread state to default values. + +1999-11-05 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * pthread.h (winsock.h): Include unconditionally. + (ETIMEDOUT): Change fallback value to that defined by winsock.h. + + * general: Patched for portability to WinCE. The details are + described in the file WinCE-PORT. Follow the instructions + in README.WinCE to make the appropriate changes in config.h. + - Tristan Savatier <tristan@mpegtv.com> + +1999-10-30 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * create.c (pthread_create): Explicitly initialise thread state to + default values. + + * cancel.c (pthread_setcancelstate): Check for NULL 'oldstate' + for compatibility with Solaris pthreads; + (pthread_setcanceltype): ditto: + - Erik Hensema <erik.hensema@group2000.nl> + +1999-10-23 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * pthread.h (ctime_r): Fix incorrect argument "_tm" + - Erik Hensema <erik.hensema@group2000.nl> + +1999-10-21 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * pthread.h (_POSIX_THREADS): Only define it if it isn't + already defined. Projects may need to define this on + the CC command line under Win32 as it doesn't have unistd.h + - Aurelio Medina <aureliom@crt.com> + +1999-10-17 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * rwlock.c (pthread_rwlock_destroy): Add cast to remove compile + warning. + + * condvar.c (pthread_cond_broadcast): Only release semaphores + if there are waiting threads. + +1999-10-15 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * condvar.c (cond_wait_cleanup): New static cleanup handler for + cond_timedwait; + (cond_timedwait): pthread_cleanup_push args changed; + canceling a thread while it's in pthread_cond_wait + will now decrement the waiters count and cleanup if it's the + last waiter. + - Lorin Hochstein <lmh@xiphos.ca> and + Peter Slacik <Peter.Slacik@tatramed.sk>; + the last waiter will now reset the CV's wasBroadcast flag + - Graham Dumpleton <Graham.Dumpleton@ra.pad.otc.telstra.com.au>. + +Thu Sep 16 1999 Ross Johnson <rpj@swan.canberra.edu.au> + + * rwlock.c (pthread_rwlock_destroy): Add serialisation. + (_rwlock_check_need_init): Check for detroyed rwlock. + * rwlock.c: Check return codes from _rwlock_check_need_init(); + modify comments; serialise access to rwlock objects during + operations; rename rw_mutex to rw_lock. + * implement.h: Rename rw_mutex to rw_lock. + * mutex.c (pthread_mutex_destroy): Add serialisation. + (_mutex_check_need_init): Check for detroyed mutex. + * condvar.c (pthread_cond_destroy): Add serialisation. + (_cond_check_need_init): Check for detroyed condvar. + * mutex.c: Modify comments. + * condvar.c: Modify comments. + +Sat Sep 10 12:56:13 1999 Ross Johnson <rpj@swan.canberra.edu.au> + + The following code for POSIX read/write locks was contributed + by Aurelio Medina. + + * implement.h (pthread_rwlock_t_): Add. + * pthread.h (pthread_rwlock_t): Add. + (PTHREAD_RWLOCK_INITIALIZER): Add. + Add rwlock function prototypes. + * rwlock.c: New module. + * pthread.def: Add new rwlock functions. + * private.c (ptw32_processInitialize): initialise + ptw32_rwlock_test_init_lock critical section. + * global.c (ptw32_rwlock_test_init_lock): Add. + + * mutex.c (pthread_mutex_destroy): Don't free mutex memory + if mutex is PTHREAD_MUTEX_INITIALIZER and has not been + initialised yet. + +Wed Sep 8 12:56:13 1999 Ross Johnson <rpj@swan.canberra.edu.au> + + * mutex.c (pthread_mutex_destroy): Free mutex memory. + - Milan Gardian <mg@tatramed.sk> + +1999-08-22 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * exit.c (pthread_exit): Fix reference to potentially + uninitialised pointer. + +1999-08-21 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * private.c (ptw32_threadStart): Apply fix of 1999-08-19 + this time to C++ and non-trapped C versions. Ommitted to + do this the first time through. + +1999-08-19 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * private.c (ptw32_threadStart): Return exit status from + the application thread startup routine. + - Milan Gardian <mg@tatramed.sk> + +1999-08-18 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * exit.c (pthread_exit): Put status into pthread_t->exitStatus + - John Bossom <john.Bossom@cognos.com> + * private.c (ptw32_threadStart): Set pthread->exitStatus + on exit of try{} block. + - John Bossom <john.Bossom@cognos.com> + * sync.c (pthread_join): use pthread_exitStatus value if the + thread exit doesn't return a value (for Mingw32 CRTDLL + which uses endthread instead of _endthreadex). + - John Bossom <john.Bossom@cognos.com> + +Tue Aug 17 20:17:58 CDT 1999 Mumit Khan <khan@xraylith.wisc.edu> + + * create.c (pthread_create): Add CRTDLL suppport. + * exit.c (pthread_exit): Likewise. + * private.c (ptw32_threadStart): Likewise. + (ptw32_threadDestroy): Likewise. + * sync.c (pthread_join): Likewise. + * tests/join1.c (main): Warn about partial support for CRTDLL. + +Tue Aug 17 20:00:08 1999 Mumit Khan <khan@xraylith.wisc.edu> + + * Makefile.in (LD): Delete entry point. + * acconfig.h (STDCALL): Delete unused macro. + * configure.in: Remove test for STDCALL. + * config.h.in: Regenerate. + * errno.c (_errno): Fix self type. + * pthread.h (PT_STDCALL): Move from here to + * implement.h (PT_STDCALL): here. + (ptw32_threadStart): Fix prototype. + * private.c (ptw32_threadStart): Likewise. + +1999-08-14 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * exit.c (pthread_exit): Don't call pthread_self() but + get thread handle directly from TSD for efficiency. + +1999-08-12 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * private.c (ptw32_threadStart): ei[] only declared if _MSC_VER. + + * exit.c (pthread_exit): Check for implicitly created threads + to avoid raising an unhandled exception. + +1999-07-12 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * condvar.c (pthread_cond_destroy): Add critical section. + (cond_timedwait): Add critical section; check for timeout + waiting on semaphore. + (pthread_cond_broadcast): Add critical section. + - Peter Slacik <Peter.Slacik@tatramed.sk> + +1999-07-09 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + The following changes fix a bug identified by + Lorin Hochstein <lmh@xiphos.ca> and solved by + John Bossom <John.Bossom@Cognos.COM>. + + The problem was that cleanup handlers were not executed when + pthread_exit() was called. + + * implement.h (pthread_t_): Add exceptionInformation element for + C++ per-thread exception information. + (general): Define and rename exceptions. + + + * misc.c (CancelableWait): PTW32_EPS_CANCEL (SEH) and + ptw32_exception_cancel (C++) used to identify the exception. + + * cancel.c (pthread_testcancel): PTW32_EPS_CANCEL (SEH) and + ptw32_exception_cancel (C++) used to identify the exception. + + * exit.c (pthread_exit): throw/raise an exception to return to + ptw32_threadStart() to exit the thread. PTW32_EPS_EXIT (SEH) + and ptw32_exception_exit (C++) used to identify the exception. + + * private.c (ptw32_threadStart): Add pthread_exit exception trap; + clean up and exit the thread directly rather than via pthread_exit(). + +Sun May 30 00:25:02 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * semaphore.h (mode_t): Conditionally typedef it. + +Fri May 28 13:33:05 1999 Ross Johnson <rpj@swan.canberra.edu.au> + + * condvar.c (pthread_cond_broadcast): Fix possible memory fault + - Mark E. Armstrong <avail@pacbell.net> + +Thu May 27 13:08:46 1999 Ross Johnson <rpj@swan.canberra.edu.au> + + * condvar.c (pthread_cond_broadcast): Fix logic bug + - Peter Slacik <Peter.Slacik@tatramed.sk>; + optimise sem_post loop + - Bossom, John <John.Bossom@Cognos.COM>. + +Fri May 14 12:13:18 1999 Ross Johnson <rpj@swan.canberra.edu.au> + + * attr.c (pthread_attr_setdetachstate): Fix logic bug + - Mike Russo <miker@eai.com>. + +Sat May 8 09:42:30 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * pthread.def (sem_open): Add. + (sem_close): Add. + (sem_unlink): Add. + (sem_getvalue): Add. + + * FAQ (Question 3): Add. + +Thu Apr 8 01:16:23 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * semaphore.c (sem_open): New function; returns an error (ENOSYS). + (sem_close): ditto. + (sem_unlink): ditto. + (sem_getvalue): ditto. + + * semaphore.h (_POSIX_SEMAPHORES): define. + +Wed Apr 7 14:09:52 1999 Ross Johnson <rpj@swan.canberra.edu.au> + + * errno.c (_REENTRANT || _MT): Invert condition. + + * pthread.h (_errno): Conditionally include prototype. + +Wed Apr 7 09:37:00 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * *.c (comments): Remove individual attributions - these are + documented sufficiently elsewhere. + + * implement.h (pthread.h): Remove extraneous include. + +Sun Apr 4 11:05:57 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * sched.c (sched.h): Include. + + * sched.h: New file for POSIX 1b scheduling. + + * pthread.h: Move opaque structures to implement.h; move sched_* + prototypes out and into sched.h. + + * implement.h: Add opaque structures from pthread.h. + + * sched.c (sched_yield): New function. + + * condvar.c (ptw32_sem_*): Rename to sem_*; except for + ptw32_sem_timedwait which is an private function. + +Sat Apr 3 23:28:00 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * Makefile.in (OBJS): Add errno.o. + +Fri Apr 2 11:08:50 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * implement.h (ptw32_sem_*): Remove prototypes now defined in + semaphore.h. + + * pthread.h (sempahore.h): Include. + + * semaphore.h: New file for POSIX 1b semaphores. + + * pthread.h (ptw32_sem_t): Change to sem_t. + + * semaphore.c (ptw32_sem_*): Change to sem_*; these functions + will be exported from the library; set errno on error. + - John Bossom <jebossom@cognos.com> + (ptw32_sem_timedwait): Moved to private.c. + + * private.c (ptw32_sem_timedwait): Moved from semaphore.c; + set errno on error. + + * errno.c (_errno): New file. New function. + - John Bossom + + * pthread.h (pthread_t_): Add per-thread errno element. + +Fri Mar 26 14:11:45 1999 Ross Johnson <rpj@swan.canberra.edu.au> + + * semaphore.c (ptw32_sem_timedwait): Check for negative + milliseconds. + - Tor Lillqvist <tml@iki.fi> + +Wed Mar 24 11:32:07 1999 Ross Johnson <rpj@swan.canberra.edu.au> + + * misc.c (CancelableWait): Initialise exceptionInformation[2]. + (pthread_self): Get a real Win32 thread handle for implicit threads. + - John Bossom <jebossom@cognos.com> + + * cancel.c (pthread_testcancel): Initialise exceptionInformation[2]. + - John Bossom <jebossom@cognos.com> + + * implement.h (SE_INFORMATION): Fix values. + - John Bossom <jebossom@cognos.com> + + * private.c (ptw32_threadDestroy): Close the thread handle. + - John Bossom <jebossom@cognos.com> + +Fri Mar 19 12:57:27 1999 Ross Johnson <rpj@swan.canberra.edu.au> + + * cancel.c (comments): Update and cleanup. + +Fri Mar 19 09:12:59 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * private.c (ptw32_threadStart): status returns PTHREAD_CANCELED. + + * pthread.h (PTHREAD_CANCELED): defined. + +Tue Mar 16 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * all: Add GNU LGPL and Copyright and Warranty. + +Mon Mar 15 00:20:13 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * condvar.c (pthread_cond_init): fix possible uninitialised use + of cv. + +Sun Mar 14 21:01:59 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * condvar.c (pthread_cond_destroy): don't do full cleanup if + static initialised cv has never been used. + (cond_timedwait): check result of auto-initialisation. + +Thu Mar 11 09:01:48 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * pthread.h (pthread_mutex_t): revert to (pthread_mutex_t *); + define a value to serve as PTHREAD_MUTEX_INITIALIZER. + (pthread_mutex_t_): remove staticinit and valid elements. + (pthread_cond_t): revert to (pthread_cond_t_ *); + define a value to serve as PTHREAD_COND_INITIALIZER. + (pthread_cond_t_): remove staticinit and valid elements. + + * mutex.c (pthread_mutex_t args): adjust indirection of references. + (all functions): check for PTHREAD_MUTEX_INITIALIZER value; + check for NULL (invalid). + + * condvar.c (pthread_cond_t args): adjust indirection of references. + (all functions): check for PTHREAD_COND_INITIALIZER value; + check for NULL (invalid). + +Wed Mar 10 17:18:12 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * misc.c (CancelableWait): Undo changes from Mar 8 and 7. + +Mon Mar 8 11:18:59 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * misc.c (CancelableWait): Ensure cancelEvent handle is the lowest + indexed element in the handles array. Enhance test for abandoned + objects. + + * pthread.h (PTHREAD_MUTEX_INITIALIZER): Trailing elements not + initialised are set to zero by the compiler. This avoids the + problem of initialising the opaque critical section element in it. + (PTHREAD_COND_INITIALIZER): Ditto. + + * semaphore.c (ptw32_sem_timedwait): Check sem == NULL earlier. + +Sun Mar 7 12:31:14 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * condvar.c (pthread_cond_init): set semaphore initial value + to 0, not 1. cond_timedwait was returning signaled immediately. + + * misc.c (CancelableWait): Place the cancel event handle first + in the handle table for WaitForMultipleObjects. This ensures that + the cancel event is recognised and acted apon if both objects + happen to be signaled together. + + * private.c (ptw32_cond_test_init_lock): Initialise and destroy. + + * implement.h (ptw32_cond_test_init_lock): Add extern. + + * global.c (ptw32_cond_test_init_lock): Add declaration. + + * condvar.c (pthread_cond_destroy): check for valid initialised CV; + flag destroyed CVs as invalid. + (pthread_cond_init): pthread_cond_t is no longer just a pointer. + This is because PTHREAD_COND_INITIALIZER needs state info to reside + in pthread_cond_t so that it can initialise on first use. Will work on + making pthread_cond_t (and other objects like it) opaque again, if + possible, later. + (cond_timedwait): add check for statically initialisation of + CV; initialise on first use. + (pthread_cond_signal): check for valid CV. + (pthread_cond_broadcast): check for valid CV. + (_cond_check_need_init): Add. + + * pthread.h (PTHREAD_COND_INITIALIZER): Fix. + (pthread_cond_t): no longer a pointer to pthread_cond_t_. + (pthread_cond_t_): add 'staticinit' and 'valid' elements. + +Sat Mar 6 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * implement.h: Undate comments. + +Sun Feb 21 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * pthread.h (PTHREAD_MUTEX_INITIALIZER): missing braces around + cs element initialiser. + +1999-02-21 Ben Elliston <bje@cygnus.com> + + * pthread.h (pthread_exit): The return type of this function is + void, not int. + + * exit.c (pthread_exit): Do not return 0. + +Sat Feb 20 16:03:30 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * dll.c (DLLMain): Expand TryEnterCriticalSection support test. + + * mutex.c (pthread_mutex_trylock): The check for + ptw32_try_enter_critical_section == NULL should have been + removed long ago. + +Fri Feb 19 16:03:30 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * sync.c (pthread_join): Fix pthread_equal() test. + + * mutex.c (pthread_mutex_trylock): Check mutex != NULL before + using it. + +Thu Feb 18 16:17:30 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * misc.c (pthread_equal): Fix inverted result. + + * Makefile.in: Use libpthread32.a as the name of the DLL export + library instead of pthread.lib. + + * condvar.c (pthread_cond_init): cv could have been used unitialised; + initialise. + + * create.c (pthread_create): parms could have been used unitialised; + initialise. + + * pthread.h (struct pthread_once_t_): Remove redefinition. + +Sat Feb 13 03:03:30 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * pthread.h (struct pthread_once_t_): Replaced. + + * misc.c (pthread_once): Replace with John Bossom's version; + has lighter weight serialisation; fixes problem of not holding + competing threads until after the init_routine completes. + +Thu Feb 11 13:34:14 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * misc.c (CancelableWait): Change C++ exception throw. + + * sync.c (pthread_join): Change FIXME comment - issue resolved. + +Wed Feb 10 12:49:11 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * configure: Various temporary changes. + - Kevin Ruland <Kevin.Ruland@anheuser-busch.com> + + * README: Update. + + * pthread.def (pthread_attr_getstackaddr): uncomment + (pthread_attr_setstackaddr): uncomment + +Fri Feb 5 13:42:30 1999 Ross Johnson <rpj@swan.canberra.edu.au> + + * semaphore.c: Comment format changes. + +Thu Feb 4 10:07:28 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * global.c: Remove ptw32_exception instantiation. + + * cancel.c (pthread_testcancel): Change C++ exception throw. + + * implement.h: Remove extern declaration. + +Wed Feb 3 13:04:44 1999 Ross Johnson <rpj@swan.canberra.edu.au> + + * cleanup.c: Rename ptw32_*_cleanup() to pthread_*_cleanup(). + + * pthread.def: Ditto. + + * pthread.h: Ditto. + + * pthread.def (pthread_cleanup_push): Remove from export list; + the function is defined as a macro under all compilers. + (pthread_cleanup_pop): Ditto. + + * pthread.h: Remove #if defined(). + +Wed Feb 3 10:13:48 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * sync.c (pthread_join): Check for NULL value_ptr arg; + check for detached threads. + +Tue Feb 2 18:07:43 1999 Ross Johnson <rpj@swan.canberra.edu.au> + + * implement.h: Add #include <pthread.h>. + Change sem_t to ptw32_sem_t. + + Various patches by Kevin Ruland <Kevin.Ruland@anheuser-busch.com> + + * signal.c (pthread_sigmask): Add and modify casts. + Reverse LHS/RHS bitwise assignments. + + * pthread.h: Remove #include <semaphore.h>. + (PTW32_ATTR_VALID): Add cast. + (struct pthread_t_): Add sigmask element. + + * dll.c: Add "extern C" for DLLMain. + (DllMain): Add cast. + + * create.c (pthread_create): Set sigmask in thread. + + * condvar.c: Remove #include. Change sem_* to ptw32_sem_*. + + * attr.c: Changed #include. + + * Makefile.in: Additional targets and changes to build the library + as a DLL. + +Fri Jan 29 11:56:28 1999 Ross Johnson <rpj@swan.canberra.edu.au> + + * Makefile.in (OBJS): Add semaphore.o to list. + + * semaphore.c (ptw32_sem_timedwait): Move from private.c. + Rename sem_* to ptw32_sem_*. + + * pthread.h (pthread_cond_t): Change type of sem_t. + _POSIX_SEMAPHORES no longer defined. + + * semaphore.h: Contents moved to implement.h. + Removed from source tree. + + * implement.h: Add semaphore function prototypes and rename all + functions to prepend 'ptw32_'. They are + now private to the pthreads-win32 implementation. + + * private.c: Change #warning. + Move ptw32_sem_timedwait() to semaphore.c. + + * cleanup.c: Change #warning. + + * misc.c: Remove #include <errno.h> + + * pthread.def: Cleanup CVS merge conflicts. + + * global.c: Ditto. + + * ChangeLog: Ditto. + + * cleanup.c: Ditto. + +Sun Jan 24 01:34:52 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * semaphore.c (sem_wait): Remove second arg to + pthreadCancelableWait() call. + +Sat Jan 23 17:36:40 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * pthread.def: Add new functions to export list. + + * pthread.h (PTHREAD_MUTEX_AUTO_CS_NP): New. + (PTHREAD_MUTEX_FORCE_CS_NP): New. + + * README: Updated. + +Fri Jan 22 14:31:59 1999 Ross Johnson <rpj@swan.canberra.edu.au> + + * Makefile.in (CFLAGS): Remove -fhandle-exceptions. Not needed + with egcs. Add -g for debugging. + + * create.c (pthread_create): Replace __stdcall with PT_STDCALL + macro. This is a hack and must be fixed. + + * misc.c (CancelableWait): Remove redundant statement. + + * mutex.c (pthread_mutexattr_init): Cast calloc return value. + + * misc.c (CancelableWait): Add cast. + (pthread_self): Add cast. + + * exit.c (pthread_exit): Add cast. + + * condvar.c (pthread_condattr_init): Cast calloc return value. + + * cleanup.c: Reorganise conditional compilation. + + * attr.c (pthread_attr_init): Remove unused 'result'. + Cast malloc return value. + + * private.c (ptw32_callUserDestroyRoutines): Redo conditional + compilation. + + * misc.c (CancelableWait): C++ version uses 'throw'. + + * cancel.c (pthread_testcancel): Ditto. + + * implement.h (class ptw32_exception): Define for C++. + + * pthread.h: Fix C, C++, and Win32 SEH condition compilation + mayhem around pthread_cleanup_* defines. C++ version now uses John + Bossom's cleanup handlers. + (pthread_attr_t): Make 'valid' unsigned. + Define '_timeb' as 'timeb' for Ming32. + Define PT_STDCALL as nothing for Mingw32. May be temporary. + + * cancel.c (pthread_testcancel): Cast return value. + +Wed Jan 20 09:31:28 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * pthread.h (pthread_mutexattr_t): Changed to a pointer. + + * mutex.c (pthread_mutex_init): Conditionally create Win32 mutex + - from John Bossom's implementation. + (pthread_mutex_destroy): Conditionally close Win32 mutex + - from John Bossom's implementation. + (pthread_mutexattr_init): Replaced by John Bossom's version. + (pthread_mutexattr_destroy): Ditto. + (pthread_mutexattr_getpshared): New function from John Bossom's + implementation. + (pthread_mutexattr_setpshared): New function from John Bossom's + implementation. + +Tue Jan 19 18:27:42 1999 Ross Johnson <rpj@swan.canberra.edu.au> + + * pthread.h (pthreadCancelableTimedWait): New prototype. + (pthreadCancelableWait): Remove second argument. + + * misc.c (CancelableWait): New static function is + pthreadCancelableWait() renamed. + (pthreadCancelableWait): Now just calls CancelableWait() with + INFINITE timeout. + (pthreadCancelableTimedWait): Just calls CancelableWait() + with passed in timeout. + + * private.c (ptw32_sem_timedwait): 'abstime' arg really is + absolute time. Calculate relative time to wait from current + time before passing timeout to new routine + pthreadCancelableTimedWait(). + - Scott Lightner <scott@curriculum.com> + +Tue Jan 19 10:27:39 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * pthread.h (pthread_mutexattr_setforcecs_np): New prototype. + + * mutex.c (pthread_mutexattr_init): Init 'pshared' and 'forcecs' + attributes to 0. + (pthread_mutexattr_setforcecs_np): New function (not portable). + + * pthread.h (pthread_mutex_t): + Add 'mutex' element. Set to NULL in PTHREAD_MUTEX_INITIALIZER. + The pthread_mutex_*() routines will try to optimise performance + by choosing either mutexes or critical sections as the basis + for pthread mutexes for each indevidual mutex. + (pthread_mutexattr_t_): Add 'forcecs' element. + Some applications may choose to force use of critical sections + if they know that:- + the mutex is PROCESS_PRIVATE and, + either the OS supports TryEnterCriticalSection() or + pthread_mutex_trylock() will never be called on the mutex. + This attribute will be setable via a non-portable routine. + + Note: We don't yet support PROCESS_SHARED mutexes, so the + implementation as it stands will default to Win32 mutexes only if + the OS doesn't support TryEnterCriticalSection. On Win9x, and early + versions of NT 'forcecs' will need to be set in order to get + critical section based mutexes. + +Sun Jan 17 12:01:26 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * pthread.h (PTHREAD_MUTEX_INITIALIZER): Init new 'staticinit' + value to '1' and existing 'valid' value to '1'. + + * global.c (ptw32_mutex_test_init_lock): Add. + + * implement.h (ptw32_mutex_test_init_lock.): Add extern. + + * private.c (ptw32_processInitialize): Init critical section for + global lock used by _mutex_check_need_init(). + (ptw32_processTerminate): Ditto (:s/Init/Destroy/). + + * dll.c (dllMain): Move call to FreeLibrary() so that it is only + called once when the process detaches. + + * mutex.c (_mutex_check_need_init): New static function to test + and init PTHREAD_MUTEX_INITIALIZER mutexes. Provides serialised + access to the internal state of the uninitialised static mutex. + Called from pthread_mutex_trylock() and pthread_mutex_lock() which + do a quick unguarded test to check if _mutex_check_need_init() + needs to be called. This is safe as the test is conservative + and is repeated inside the guarded section of + _mutex_check_need_init(). Thus in all calls except the first + calls to lock static mutexes, the additional overhead to lock any + mutex is a single memory fetch and test for zero. + + * pthread.h (pthread_mutex_t_): Add 'staticinit' member. Mutexes + initialised by PTHREAD_MUTEX_INITIALIZER aren't really initialised + until the first attempt to lock it. Using the 'valid' + flag (which flags the mutex as destroyed or not) to record this + information would be messy. It is possible for a statically + initialised mutex such as this to be destroyed before ever being + used. + + * mutex.c (pthread_mutex_trylock): Call _mutex_check_need_init() + to test/init PTHREAD_MUTEX_INITIALIZER mutexes. + (pthread_mutex_lock): Ditto. + (pthread_mutex_unlock): Add check to ensure we don't try to unlock + an unitialised static mutex. + (pthread_mutex_destroy): Add check to ensure we don't try to delete + a critical section that we never created. Allows us to destroy + a static mutex that has never been locked (and hence initialised). + (pthread_mutex_init): Set 'staticinit' flag to 0 for the new mutex. + +Sun Jan 17 12:01:26 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * private.c (ptw32_sem_timedwait): Move from semaphore.c. + + * semaphore.c : Remove redundant #includes. + (ptw32_sem_timedwait): Move to private.c. + (sem_wait): Add missing abstime arg to pthreadCancelableWait() call. + +Fri Jan 15 23:38:05 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * condvar.c (cond_timedwait): Remove comment. + +Fri Jan 15 15:41:28 1999 Ross Johnson <rpj@swan.canberra.edu.au> + + * pthread.h: Add new 'abstime' arg to pthreadCancelableWait() + prototype. + + * condvar.c (cond_timedwait): New generalised function called by + both pthread_cond_wait() and pthread_cond_timedwait(). This is + essentially pthread_cond_wait() renamed and modified to add the + 'abstime' arg and call the new ptw32_sem_timedwait() instead of + sem_wait(). + (pthread_cond_wait): Now just calls the internal static + function cond_timedwait() with an INFINITE wait. + (pthread_cond_timedwait): Now implemented. Calls the internal + static function cond_timedwait(). + + * implement.h (ptw32_sem_timedwait): New internal function + prototype. + + * misc.c (pthreadCancelableWait): Added new 'abstime' argument + to allow shorter than INFINITE wait. + + * semaphore.c (ptw32_sem_timedwait): New function for internal + use. This is essentially sem_wait() modified to add the + 'abstime' arg and call the modified (see above) + pthreadCancelableWait(). + +Thu Jan 14 14:27:13 1999 Ross Johnson <rpj@swan.canberra.edu.au> + + * cleanup.c: Correct _cplusplus to __cplusplus wherever used. + + * Makefile.in: Add CC=g++ and add -fhandle-exceptions to CFLAGS. + The derived Makefile will compile all units of the package as C++ + so that those which include try/catch exception handling should work + properly. The package should compile ok if CC=gcc, however, exception + handling will not be included and thus thread cancellation, for + example, will not work. + + * cleanup.c (ptw32_pop_cleanup): Add #warning to compile this + file as C++ if using a cygwin32 environment. Perhaps the whole package + should be compiled using g++ under cygwin. + + * private.c (ptw32_threadStart): Change #error directive + into #warning and bracket for __CYGWIN__ and derivative compilers. + +Wed Jan 13 09:34:52 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * build.bat: Delete old binaries before compiling/linking. + +Tue Jan 12 09:58:38 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * dll.c: The Microsoft compiler pragmas probably are more + appropriately protected by _MSC_VER than by _WIN32. + - Tor Lillqvist <tml@iki.fi>. + + * condvar.c (pthread_cond_timedwait): Fix function description + comments. + + * pthread.h: Define ETIMEDOUT. This should be returned by + pthread_cond_timedwait which is not implemented yet as of + snapshot-1999-01-04-1305. It was implemented in the older version. + The Microsoft compiler pragmas probably are more appropriately + protected by _MSC_VER than by _WIN32. + - Tor Lillqvist <tml@iki.fi>. + + * pthread.def: pthread_mutex_destroy was missing from the def file + - Tor Lillqvist <tml@iki.fi>. + + * condvar.c (pthread_cond_broadcast): Ensure we only wait on threads + if there were any waiting on the condition. + I think pthread_cond_broadcast should do the WaitForSingleObject + only if cv->waiters > 0? Otherwise it seems to hang, at least in the + testg thread program from glib. + - Tor Lillqvist <tml@iki.fi>. + + * semaphore.c (sem_post): Correct typo in comment. + +Mon Jan 11 20:33:19 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * pthread.h: Re-arrange conditional compile of pthread_cleanup-* + macros. + + * cleanup.c (ptw32_push_cleanup): Provide conditional + compile of cleanup->prev. + +1999-01-11 Ben Elliston <bje@cygnus.com> + + * condvar.c (pthread_cond_init): Invert logic when testing the + return value from calloc(). + - Tor Lillqvist <tml@iki.fi>. + +Sat Jan 9 14:32:08 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * implement.h: Compile-time switch for CYGWIN derived environments + to use CreateThread instead of _beginthreadex. Ditto for ExitThread. + Patch provided by Anders Norlander <anorland@hem2.passagen.se>. + +Tue Jan 5 16:33:04 1999 Ross Johnson <rpj@swan.canberra.edu.au> + + * cleanup.c (ptw32_pop_cleanup): Add C++ version of __try/__except + block. Move trailing "}" out of #ifdef _WIN32 block left there by + (rpj's) mistake. + + * private.c: Remove #include <errno.h> which is included by pthread.h. + +1998-12-11 Ben Elliston <bje@toilet.to.cygnus.com> + + * README: Update info about subscribing to the mailing list. + +Mon Jan 4 11:23:40 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * all: No code changes, just cleanup. + - remove #if 0 /* Pre Bossom */ enclosed code. + - Remove some redundant #includes. + * pthread.h: Update implemented/unimplemented routines list. + * Tag the bossom merge branch getting ready to merge back to main + trunk. + +Tue Dec 29 13:11:16 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * implement.h: Move the following struct definitions to pthread.h: + pthread_t_, pthread_attr_t_, pthread_mutex_t_, pthread_mutex_t_, + pthread_mutexattr_t_, pthread_key_t_, pthread_cond_t_, + pthread_condattr_t_, pthread_once_t_. + + * pthread.h: Add "_" prefix to pthread_push_cleanup and + pthread_pop_cleanup internal routines, and associated struct and + typedefs. + + * buildlib.bat: Add compile command for semaphore.c + + * pthread.def: Comment out pthread_atfork routine name. + Now unimplemented. + + * tsd.c (pthread_setspecific): Rename tkAssocCreate to + ptw32_tkAssocCreate. + (pthread_key_delete): Rename tkAssocDestroy to + ptw32_tkAssocDestroy. + + * sync.c (pthread_join): Rename threadDestroy to ptw32_threadDestroy + + * sched.c (is_attr): attr is now **attr (was *attr), so add extra + NULL pointer test. + (pthread_attr_setschedparam): Increase redirection for attr which is + now a **. + (pthread_attr_getschedparam): Ditto. + (pthread_setschedparam): Change thread validation and rename "thread" + Win32 thread Handle element name to match John Bossom's version. + (pthread_getschedparam): Ditto. + + * private.c (ptw32_threadDestroy): Rename call to + callUserDestroyRoutines() as ptw32_callUserDestroyRoutines() + + * misc.c: Add #include "implement.h". + + * dll.c: Remove defined(KLUDGE) wrapped code. + + * fork.c: Remove redefinition of ENOMEM. + Remove pthread_atfork() and fork() with #if 0/#endif. + + * create.c (pthread_create): Rename threadStart and threadDestroy calls + to ptw32_threadStart and ptw32_threadDestroy. + + * implement.h: Rename "detachedstate" to "detachstate". + + * attr.c: Rename "detachedstate" to "detachstate". + +Mon Dec 28 09:54:39 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * semaphore.c: Initial version. From John Bossom's implementation. + * semaphore.h: Initial version. From John Bossom's implementation. + +Mon Dec 28 09:54:39 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * pthread.h (pthread_attr_t_): Change to *pthread_attr_t. + + * attr.c (pthread_attr_setstacksize): Merge with John Bossom's version. + (pthread_attr_getstacksize): Merge with John Bossom's version. + (pthread_attr_setstackaddr): Merge with John Bossom's version. + (pthread_attr_getstackaddr): Merge with John Bossom's version. + (pthread_attr_init): Merge with John Bossom's version. + (pthread_attr_destroy): Merge with John Bossom's version. + (pthread_attr_getdetachstate): Merge with John Bossom's version. + (pthread_attr_setdetachstate): Merge with John Bossom's version. + (is_attr): attr is now **attr (was *attr), so add extra NULL pointer + test. + + * implement.h (pthread_attr_t_): Add and rename elements in JEB's + version to correspond to original, so that it can be used with + original attr routines. + + * pthread.h: Add #endif at end which was truncated in merging. + +Sun Dec 20 14:51:58 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * misc.c (pthreadCancelableWait): New function by John Bossom. Non-standard + but provides a hook that can be used to implement cancellation points in + applications that use this library. + + * pthread.h (pthread_cleanup_pop): C++ (non-WIN32) version uses + try/catch to emulate John Bossom's WIN32 __try/__finally behaviour. + In the WIN32 version __finally block, add a test for AbnormalTermination otherwise + cleanup is only run if the cleanup_pop execute arg is non-zero. Cancellation + should cause the cleanup to run irrespective of the execute arg. + + * condvar.c (pthread_condattr_init): Replaced by John Bossom's version. + (pthread_condattr_destroy): Replaced by John Bossom's version. + (pthread_condattr_getpshared): Replaced by John Bossom's version. + (pthread_condattr_setpshared): Replaced by John Bossom's version. + (pthread_cond_init): Replaced by John Bossom's version. + Fix comment (refered to mutex rather than condition variable). + (pthread_cond_destroy): Replaced by John Bossom's version. + (pthread_cond_wait): Replaced by John Bossom's version. + (pthread_cond_timedwait): Replaced by John Bossom's version. + (pthread_cond_signal): Replaced by John Bossom's version. + (pthread_cond_broadcast): Replaced by John Bossom's version. + +Thu Dec 17 19:10:46 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * tsd.c (pthread_key_create): Replaced by John Bossom's version. + (pthread_key_delete): Replaced by John Bossom's version. + (pthread_setspecific): Replaced by John Bossom's version. + (pthread_getspecific): Replaced by John Bossom's version. + +Mon Dec 7 09:44:40 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * cancel.c (pthread_setcancelstate): Replaced by John Bossom's version. + (pthread_setcanceltype): Replaced by John Bossom's version. + (pthread_testcancel): Replaced by John Bossom's version. + (pthread_cancel): Replaced by John Bossom's version. + + * exit.c (pthread_exit): Replaced by John Bossom's version. + + * misc.c (pthread_self): Replaced by John Bossom's version. + (pthread_equal): Replaced by John Bossom's version. + + * sync.c (pthread_detach): Replaced by John Bossom's version. + (pthread_join): Replaced by John Bossom's version. + + * create.c (pthread_create): Replaced by John Bossom's version. + + * private.c (ptw32_processInitialize): New by John Bossom. + (ptw32_processTerminate): Non-public function by John Bossom. + (ptw32_threadStart): Non-public function by John Bossom. + (ptw32_threadDestroy): Non-public function by John Bossom. + (ptw32_cleanupStack): Non-public function by John Bossom. + (ptw32_tkAssocCreate): Non-public function by John Bossom. + (ptw32_tkAssocDestroy): Non-public function by John Bossom. + (ptw32_callUserDestroyRoutines): Non-public function by John Bossom. + + * implement.h: Added John Bossom's non-API structures and + declarations. + + * dll.c (PthreadsEntryPoint): Cast return value of GetProcAddress + to resolve compile warning from MSVC. + + * dll.c (DLLmain): Replaced by John Bossom's version. + * dll.c (PthreadsEntryPoint): + Re-applied Anders Norlander's patch:- + Initialize ptw32_try_enter_critical_section at startup + and release kernel32 handle when DLL is being unloaded. + +Sun Dec 6 21:54:35 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * buildlib.bat: Fix args to CL when building the .DLL + + * cleanup.c (ptw32_destructor_run_all): Fix TSD key management. + This is a tidy-up before TSD and Thread management is completely + replaced by John Bossom's code. + + * tsd.c (pthread_key_create): Fix TSD key management. + + * global.c (ptw32_key_virgin_next): Initialise. + + * build.bat: New DOS script to compile and link a pthreads app + using Microsoft's CL compiler linker. + * buildlib.bat: New DOS script to compile all the object files + and create pthread.lib and pthread.dll using Microsoft's CL + compiler linker. + +1998-12-05 Anders Norlander <anorland@hem2.passagen.se> + + * implement.h (ptw32_try_enter_critical_section): New extern + * dll.c (ptw32_try_enter_critical_section): New pointer to + TryEnterCriticalSection if it exists; otherwise NULL. + * dll.c (PthreadsEntryPoint): + Initialize ptw32_try_enter_critical_section at startup + and release kernel32 handle when DLL is being unloaded. + * mutex.c (pthread_mutex_trylock): Replaced check for NT with + a check if ptw32_try_enter_critical_section is valid + pointer to a function. Call ptw32_try_enter_critical_section + instead of TryEnterCriticalSection to avoid errors on Win95. + +Thu Dec 3 13:32:00 1998 Ross Johnson <rpj@ise.canberra.edu.au> + + * README: Correct cygwin32 compatibility statement. + +Sun Nov 15 21:24:06 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * cleanup.c (ptw32_destructor_run_all): Declare missing void * arg. + Fixup CVS merge conflicts. + +1998-10-30 Ben Elliston <bje@cygnus.com> + + * condvar.c (cond_wait): Fix semantic error. Test for equality + instead of making an assignment. + +Fri Oct 30 15:15:50 1998 Ross Johnson <rpj@swan.canberra.edu.au> + + * cleanup.c (ptw32_handler_push): Fixed bug appending new + handler to list reported by Peter Slacik + <Peter.Slacik@leibinger.freinet.de>. + (new_thread): Rename poorly named local variable to + "new_handler". + +Sat Oct 24 18:34:59 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * global.c: Add TSD key management array and index declarations. + + * implement.h: Ditto for externs. + +Fri Oct 23 00:08:09 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * implement.h (PTW32_TSD_KEY_REUSE): Add enum. + + * private.c (ptw32_delete_thread): Add call to + ptw32_destructor_run_all() to clean up the threads keys. + + * cleanup.c (ptw32_destructor_run_all): Check for no more dirty + keys to run destructors on. Assume that the destructor call always + succeeds and set the key value to NULL. + +Thu Oct 22 21:44:44 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * tsd.c (pthread_setspecific): Add key management code. + (pthread_key_create): Ditto. + (pthread_key_delete): Ditto. + + * implement.h (struct ptw32_tsd_key): Add status member. + + * tsd.c: Add description of pthread_key_delete() from the + standard as a comment. + +Fri Oct 16 17:38:47 1998 Ross Johnson <rpj@swan.canberra.edu.au> + + * cleanup.c (ptw32_destructor_run_all): Fix and improve + stepping through the key table. + +Thu Oct 15 14:05:01 1998 Ross Johnson <rpj@swan.canberra.edu.au> + + * private.c (ptw32_new_thread): Remove init of destructorstack. + No longer an element of pthread_t. + + * tsd.c (pthread_setspecific): Fix type declaration and cast. + (pthread_getspecific): Ditto. + (pthread_getspecific): Change error return value to NULL if key + is not in use. + +Thu Oct 15 11:53:21 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * global.c (ptw32_tsd_key_table): Fix declaration. + + * implement.h(ptw32_TSD_keys_TlsIndex): Add missing extern. + (ptw32_tsd_mutex): Ditto. + + * create.c (ptw32_start_call): Fix "keys" array declaration. + Add comment. + + * tsd.c (pthread_setspecific): Fix type declaration and cast. + (pthread_getspecific): Ditto. + + * cleanup.c (ptw32_destructor_run_all): Declare missing loop + counter. + +Wed Oct 14 21:09:24 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * private.c (ptw32_new_thread): Increment ptw32_threads_count. + (ptw32_delete_thread): Decrement ptw32_threads_count. + Remove some comments. + + * exit.c (ptw32_exit): : Fix two pthread_mutex_lock() calls that + should have been pthread_mutex_unlock() calls. + (ptw32_vacuum): Remove call to ptw32_destructor_pop_all(). + + * create.c (pthread_create): Fix two pthread_mutex_lock() calls that + should have been pthread_mutex_unlock() calls. + + * global.c (ptw32_tsd_mutex): Add mutex for TSD operations. + + * tsd.c (pthread_key_create): Add critical section. + (pthread_setspecific): Ditto. + (pthread_getspecific): Ditto. + (pthread_key_delete): Ditto. + + * sync.c (pthread_join): Fix two pthread_mutex_lock() calls that + should have been pthread_mutex_unlock() calls. + +Mon Oct 12 00:00:44 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * implement.h (ptw32_tsd_key_table): New. + + * create.c (ptw32_start_call): Initialise per-thread TSD keys + to NULL. + + * misc.c (pthread_once): Correct typo in comment. + + * implement.h (ptw32_destructor_push): Remove. + (ptw32_destructor_pop): Remove. + (ptw32_destructor_run_all): Rename from ptw32_destructor_pop_all. + (PTW32_TSD_KEY_DELETED): Add enum. + (PTW32_TSD_KEY_INUSE): Add enum. + + * cleanup.c (ptw32_destructor_push): Remove. + (ptw32_destructor_pop): Remove. + (ptw32_destructor_run_all): Totally revamped TSD. + + * dll.c (ptw32_TSD_keys_TlsIndex): Initialise. + + * tsd.c (pthread_setspecific): Totally revamped TSD. + (pthread_getspecific): Ditto. + (pthread_create): Ditto. + (pthread_delete): Ditto. + +Sun Oct 11 22:44:55 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * global.c (ptw32_tsd_key_table): Add new global. + + * implement.h (ptw32_tsd_key_t and struct ptw32_tsd_key): + Add. + (struct _pthread): Remove destructorstack. + + * cleanup.c (ptw32_destructor_run_all): Rename from + ptw32_destructor_pop_all. The key destructor stack was made + global rather than per-thread. No longer removes destructor nodes + from the stack. Comments updated. + +1998-10-06 Ben Elliston <bje@cygnus.com> + + * condvar.c (cond_wait): Use POSIX, not Win32 mutex calls. + (pthread_cond_broadcast): Likewise. + (pthread_cond_signal): Likewise. + +1998-10-05 Ben Elliston <bje@cygnus.com> + + * pthread.def: Update. Some functions aren't available yet, others + are macros in <pthread.h>. + + * tests/join.c: Remove; useless. + +Mon Oct 5 14:25:08 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * pthread.def: New file for building the DLL. + +1998-10-05 Ben Elliston <bje@cygnus.com> + + * misc.c (pthread_equal): Correct inverted logic bug. + (pthread_once): Use the POSIX mutex primitives, not Win32. Remove + irrelevant FIXME comment. + + * global.c (PTHREAD_MUTEX_INITIALIZER): Move to pthread.h. + + * pthread.h (PTHREAD_MUTEX_INITIALIZER): Define. + (pthread_mutex_t): Reimplement as a struct containing a valid + flag. If the flag is ever down upon entry to a mutex operation, + we call pthread_mutex_create() to initialise the object. This + fixes the problem of how to handle statically initialised objects + that can't call InitializeCriticalSection() due to their context. + (PTHREAD_ONCE_INIT): Define. + + * mutex.c (pthread_mutex_init): Set valid flag. + (pthread_mutex_destroy): Clear valid flag. + (pthread_mutex_lock): Check and handle the valid flag. + (pthread_mutex_unlock): Likewise. + (pthread_mutex_trylock): Likewise. + + * tests/mutex3.c: New file; test for the static initialisation + macro. Passes. + + * tests/create1.c: New file; test pthread_create(). Passes. + + * tests/equal.c: Poor test; remove. + + * tests/equal1.c New file; test pthread_equal(). Passes. + + * tests/once1.c: New file; test for pthread_once(). Passes. + + * tests/self.c: Remove; rename to self1.c. + + * tests/self1.c: This is the old self.c. + + * tests/self2.c: New file. Test pthread_self() with a single + thread. Passes. + + * tests/self3.c: New file. Test pthread_self() with a couple of + threads to ensure their thread IDs differ. Passes. + +1998-10-04 Ben Elliston <bje@cygnus.com> + + * tests/mutex2.c: Test pthread_mutex_trylock(). Passes. + + * tests/mutex1.c: New basic test for mutex functions (it passes). + (main): Eliminate warning. + + * configure.in: Test for __stdcall, not _stdcall. Typo. + + * configure: Regenerate. + + * attr.c (pthread_attr_setstackaddr): Remove FIXME comment. Win32 + does know about ENOSYS after all. + (pthread_attr_setstackaddr): Likewise. + +1998-10-03 Ben Elliston <bje@cygnus.com> + + * configure.in: Test for the `_stdcall' keyword. Define `STDCALL' + to `_stdcall' if we have it, null otherwise. + + * configure: Regenerate. + + * acconfig.h (STDCALL): New define. + + * config.h.in: Regenerate. + + * create.c (ptw32_start_call): Add STDCALL prefix. + + * mutex.c (pthread_mutex_init): Correct function signature. + + * attr.c (pthread_attr_init): Only zero out the `sigmask' member + if we have the sigset_t type. + + * pthread.h: No need to include <unistd.h>. It doesn't even exist + on Win32! Again, an artifact of cross-compilation. + (pthread_sigmask): Only provide if we have the sigset_t type. + + * process.h: Remove. This was a stand-in before we started doing + native compilation under Win32. + + * pthread.h (pthread_mutex_init): Make `attr' argument const. + +1998-10-02 Ben Elliston <bje@cygnus.com> + + * COPYING: Remove. + + * COPYING.LIB: Add. This library is under the LGPL. + +1998-09-13 Ben Elliston <bje@cygnus.com> + + * configure.in: Test for required system features. + + * configure: Generate. + + * acconfig.h: New file. + + * config.h.in: Generate. + + * Makefile.in: Renamed from Makefile. + + * COPYING: Import from a recent GNU package. + + * config.guess: Likewise. + + * config.sub: Likewise. + + * install-sh: Likewise. + + * config.h: Remove. + + * Makefile: Likewise. + +1998-09-12 Ben Elliston <bje@cygnus.com> + + * windows.h: No longer needed; remove. + + * windows.c: Likewise. + +Sat Sep 12 20:09:24 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * windows.h: Remove error number definitions. These are in <errno.h> + + * tsd.c: Add comment explaining rationale for not building + POSIX TSD on top of Win32 TLS. + +1998-09-12 Ben Elliston <bje@cygnus.com> + + * {most}.c: Include <errno.h> to get POSIX error values. + + * signal.c (pthread_sigmask): Only provide if HAVE_SIGSET_T is + defined. + + * config.h: #undef features, don't #define them. This will be + generated by autoconf very soon. + +1998-08-11 Ben Elliston <bje@cygnus.com> + + * Makefile (LIB): Define. + (clean): Define target. + (all): Build a library not just the object files. + + * pthread.h: Provide a definition for struct timespec if we don't + already have one. + + * windows.c (TlsGetValue): Bug fix. + +Thu Aug 6 15:19:22 1998 Ross Johnson <rpj@swan.canberra.edu.au> + + * misc.c (pthread_once): Fix arg 1 of EnterCriticalSection() + and LeaveCriticalSection() calls to pass address-of lock. + + * fork.c (pthread_atfork): Typecast (void (*)(void *)) funcptr + in each ptw32_handler_push() call. + + * exit.c (ptw32_exit): Fix attr arg in + pthread_attr_getdetachstate() call. + + * private.c (ptw32_new_thread): Typecast (HANDLE) NULL. + (ptw32_delete_thread): Ditto. + + * implement.h: (PTW32_MAX_THREADS): Add define. This keeps + changing in an attempt to make thread administration data types + opaque and cleanup DLL startup. + + * dll.c (PthreadsEntryPoint): + (ptw32_virgins): Remove malloc() and free() calls. + (ptw32_reuse): Ditto. + (ptw32_win32handle_map): Ditto. + (ptw32_threads_mutex_table): Ditto. + + * global.c (_POSIX_THREAD_THREADS_MAX): Initialise with + PTW32_MAX_THREADS. + (ptw32_virgins): Ditto. + (ptw32_reuse): Ditto. + (ptw32_win32handle_map): Ditto. + (ptw32_threads_mutex_table): Ditto. + + * create.c (pthread_create): Typecast (HANDLE) NULL. + Typecast (unsigned (*)(void *)) start_routine. + + * condvar.c (pthread_cond_init): Add address-of operator & to + arg 1 of pthread_mutex_init() call. + (pthread_cond_destroy): Add address-of operator & to + arg 1 of pthread_mutex_destroy() call. + + * cleanup.c (ptw32_destructor_pop_all): Add (int) cast to + pthread_getspecific() arg. + (ptw32_destructor_pop): Add (void *) cast to "if" conditional. + (ptw32_destructor_push): Add (void *) cast to + ptw32_handler_push() "key" arg. + (malloc.h): Add include. + + * implement.h (ptw32_destructor_pop): Add prototype. + + * tsd.c (implement.h): Add include. + + * sync.c (pthread_join): Remove target_thread_mutex and it's + initialisation. Rename getdetachedstate to getdetachstate. + Remove unused variable "exitcode". + (pthread_detach): Remove target_thread_mutex and it's + initialisation. Rename getdetachedstate to getdetachstate. + Rename setdetachedstate to setdetachstate. + + * signal.c (pthread_sigmask): Rename SIG_SET to SIG_SETMASK. + Cast "set" to (long *) in assignment to passify compiler warning. + Add address-of operator & to thread->attr.sigmask in memcpy() call + and assignment. + (pthread_sigmask): Add address-of operator & to thread->attr.sigmask + in memcpy() call and assignment. + + * windows.h (THREAD_PRIORITY_ERROR_RETURN): Add. + (THREAD_PRIORITY_LOWEST): Add. + (THREAD_PRIORITY_HIGHEST): Add. + + * sched.c (is_attr): Add function. + (implement.h): Add include. + (pthread_setschedparam): Rename all instances of "sched_policy" + to "sched_priority". + (pthread_getschedparam): Ditto. + +Tue Aug 4 16:57:58 1998 Ross Johnson <rpj@swan.canberra.edu.au> + + * private.c (ptw32_delete_thread): Fix typo. Add missing ';'. + + * global.c (ptw32_virgins): Change types from pointer to + array pointer. + (ptw32_reuse): Ditto. + (ptw32_win32handle_map): Ditto. + (ptw32_threads_mutex_table): Ditto. + + * implement.h(ptw32_virgins): Change types from pointer to + array pointer. + (ptw32_reuse): Ditto. + (ptw32_win32handle_map): Ditto. + (ptw32_threads_mutex_table): Ditto. + + * private.c (ptw32_delete_thread): Fix "entry" should be "thread". + + * misc.c (pthread_self): Add extern for ptw32_threadID_TlsIndex. + + * global.c: Add comment. + + * misc.c (pthread_once): Fix member -> dereferences. + Change ptw32_once_flag to once_control->flag in "if" test. + +Tue Aug 4 00:09:30 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * implement.h(ptw32_virgins): Add extern. + (ptw32_virgin_next): Ditto. + (ptw32_reuse): Ditto. + (ptw32_reuse_top): Ditto. + (ptw32_win32handle_map): Ditto. + (ptw32_threads_mutex_table): Ditto. + + * global.c (ptw32_virgins): Changed from array to pointer. + Storage allocation for the array moved into dll.c. + (ptw32_reuse): Ditto. + (ptw32_win32handle_map): Ditto. + (ptw32_threads_mutex_table): Ditto. + + * dll.c (PthreadsEntryPoint): Set up thread admin storage when + DLL is loaded. + + * fork.c (pthread_atfork): Fix function pointer arg to all + ptw32_handler_push() calls. Change "arg" arg to NULL in child push. + + * exit.c: Add windows.h and process.h includes. + (ptw32_exit): Add local detachstate declaration. + (ptw32_exit): Fix incorrect name for pthread_attr_getdetachstate(). + + * pthread.h (_POSIX_THREAD_ATTR_STACKSIZE): Move from global.c + (_POSIX_THREAD_ATTR_STACKADDR): Ditto. + + * create.c (pthread_create): Fix #if should be #ifdef. + (ptw32_start_call): Remove usused variables. + + * process.h: Create. + + * windows.h: Move _beginthreadex and _endthreadex into + process.h + +Mon Aug 3 21:19:57 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * condvar.c (pthread_cond_init): Add NULL attr to + pthread_mutex_init() call - default attributes will be used. + (cond_wait): Fix typo. + (cond_wait): Fix typo - cv was ev. + (pthread_cond_broadcast): Fix two identical typos. + + * cleanup.c (ptw32_destructor_pop_all): Remove _ prefix from + PTHREAD_DESTRUCTOR_ITERATIONS. + + * pthread.h: Move _POSIX_* values into posix.h + + * pthread.h: Fix typo in pthread_mutex_init() prototype. + + * attr.c (pthread_attr_init): Fix error in priority member init. + + * windows.h (THREAD_PRIORITY_NORMAL): Add. + + * pthread.h (sched_param): Add missing ';' to struct definition. + + * attr.c (pthread_attr_init): Remove obsolete pthread_attr_t + member initialisation - cancelstate, canceltype, cancel_pending. + (is_attr): Make arg "attr" a const. + + * implement.h (PTW32_HANDLER_POP_LIFO): Remove definition. + (PTW32_HANDLER_POP_FIFO): Ditto. + (PTW32_VALID): Add missing newline escape (\). + (ptw32_handler_node): Make element "next" a pointer. + +1998-08-02 Ben Elliston <bje@cygnus.com> + + * windows.h: Remove duplicate TlsSetValue() prototype. Add + TlsGetValue() prototype. + (FALSE): Define. + (TRUE): Likewise. + Add forgotten errno values. Guard against multiple #includes. + + * windows.c: New file. Implement stubs for Win32 functions. + + * Makefile (SRCS): Remove. Not explicitly needed. + (CFLAGS): Add -Wall for all warnings with GCC. + +Sun Aug 2 19:03:42 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * config.h: Create. This is a temporary stand-in for autoconf yet + to be done. + (HAVE_SIGNAL_H): Add. + + * pthread.h: Minor rearrangement for temporary config.h. + +Fri Jul 31 14:00:29 1998 Ross Johnson <rpj@swan.canberra.edu.au> + + * cleanup.c (ptw32_destructor_pop): Implement. Removes + destructors associated with a key without executing them. + (ptw32_destructor_pop_all): Add FIXME comment. + + * tsd.c (pthread_key_delete): Add call to ptw32_destructor_pop(). + +Fri Jul 31 00:05:45 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * tsd.c (pthread_key_create): Update to properly associate + the destructor routine with the key. + (pthread_key_delete): Add FIXME comment. + + * exit.c (ptw32_vacuum): Add call to + ptw32_destructor_pop_all(). + + * implement.h (ptw32_handler_pop_all): Add prototype. + (ptw32_destructor_pop_all): Ditto. + + * cleanup.c (ptw32_destructor_push): Implement. This is just a + call to ptw32_handler_push(). + (ptw32_destructor_pop_all): Implement. This is significantly + different to ptw32_handler_pop_all(). + + * Makefile (SRCS): Create. Preliminary. + + * windows.h: Create. Contains Win32 definitions for compile + testing. This is just a standin for the real one. + + * pthread.h (SIG_UNBLOCK): Fix typo. Was SIG_BLOCK. + (windows.h): Add include. Required for CRITICAL_SECTION. + (pthread_cond_t): Move enum declaration outside of struct + definition. + (unistd.h): Add include - may be temporary. + + * condvar.c (windows.h): Add include. + + * implement.h (PTW32_THIS): Remove - no longer required. + (PTW32_STACK): Use pthread_self() instead of PTW32_THIS. + +Thu Jul 30 23:12:45 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * implement.h: Remove ptw32_find_entry() prototype. + + * private.c: Extend comments. + Remove ptw32_find_entry() - no longer needed. + + * create.c (ptw32_start_call): Add call to TlsSetValue() to + store the thread ID. + + * dll.c (PthreadsEntryPoint): Implement. This is called + whenever a process loads the DLL. Used to initialise thread + local storage. + + * implement.h: Add ptw32_threadID_TlsIndex. + Add ()s around PTW32_VALID expression. + + * misc.c (pthread_self): Re-implement using Win32 TLS to store + the threads own ID. + +Wed Jul 29 11:39:03 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * private.c: Corrections in comments. + (ptw32_new_thread): Alter "if" flow to be more natural. + + * cleanup.c (ptw32_handler_push): Same as below. + + * create.c (pthread_create): Same as below. + + * private.c (ptw32_new_thread): Rename "new" to "new_thread". + Since when has a C programmer been required to know C++? + +Tue Jul 28 14:04:29 1998 Ross Johnson <rpj@swan.canberra.edu.au> + + * implement.h: Add PTW32_VALID macro. + + * sync.c (pthread_join): Modify to use the new thread + type and ptw32_delete_thread(). Rename "target" to "thread". + Remove extra local variable "target". + (pthread_detach): Ditto. + + * signal.c (pthread_sigmask): Move init of "us" out of inner block. + Fix instance of "this" should have been "us". Rename "us" to "thread". + + * sched.c (pthread_setschedparam): Modify to use the new thread + type. + (pthread_getschedparam): Ditto. + + * private.c (ptw32_find_thread): Fix return type and arg. + + * implement.h: Remove PTW32_YES and PTW32_NO. + (ptw32_new_thread): Add prototype. + (ptw32_find_thread): Ditto. + (ptw32_delete_thread): Ditto. + (ptw32_new_thread_entry): Remove prototype. + (ptw32_find_thread_entry): Ditto. + (ptw32_delete_thread_entry): Ditto. + ( PTW32_NEW, PTW32_INUSE, PTW32_EXITED, PTW32_REUSE): + Add. + + + * create.c (pthread_create): Minor rename "us" to "new" (I need + these cues but it doesn't stop me coming out with some major bugs + at times). + Load start_routine and arg into the thread so the wrapper can + call it. + + * exit.c (pthread_exit): Fix pthread_this should be pthread_self. + + * cancel.c (pthread_setcancelstate): Change + ptw32_threads_thread_t * to pthread_t and init with + pthread_this(). + (pthread_setcanceltype): Ditto. + + * exit.c (ptw32_exit): Add new pthread_t arg. + Rename ptw32_delete_thread_entry to ptw32_delete_thread. + Rename "us" to "thread". + (pthread_exit): Call ptw32_exit with added thread arg. + + * create.c (ptw32_start_call): Insert missing ")". + Add "us" arg to ptw32_exit() call. + (pthread_create): Modify to use new thread allocation scheme. + + * private.c: Added detailed explanation of the new thread + allocation scheme. + (ptw32_new_thread): Totally rewritten to use + new thread allocation scheme. + (ptw32_delete_thread): Ditto. + (ptw32_find_thread): Obsolete. + +Mon Jul 27 17:46:37 1998 Ross Johnson <rpj@swan.canberra.edu.au> + + * create.c (pthread_create): Start of rewrite. Not completed yet. + + * private.c (ptw32_new_thread_entry): Start of rewrite. Not + complete. + + * implement.h (ptw32_threads_thread): Rename, remove thread + member, add win32handle and ptstatus members. + (ptw32_t): Add. + + * pthread.h: pthread_t is no longer mapped directly to a Win32 + HANDLE type. This is so we can let the Win32 thread terminate and + reuse the HANDLE while pthreads holds it's own thread ID until + the last waiting join exits. + +Mon Jul 27 00:20:37 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * private.c (ptw32_delete_thread_entry): Destroy the thread + entry attribute object before deleting the thread entry itself. + + * attr.c (pthread_attr_init): Initialise cancel_pending = FALSE. + (pthread_attr_setdetachstate): Rename "detached" to "detachedstate". + (pthread_attr_getdetachstate): Ditto. + + * exit.c (ptw32_exit): Fix incorrect check for detachedstate. + + * implement.h (ptw32_call_t): Remove env member. + +Sun Jul 26 13:06:12 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * implement.h (ptw32_new_thread_entry): Fix prototype. + (ptw32_find_thread_entry): Ditto. + (ptw32_delete_thread_entry): Ditto. + (ptw32_exit): Add prototype. + + * exit.c (ptw32_exit): New function. Called from pthread_exit() + and ptw32_start_call() to exit the thread. It allows an extra + argument which is the return code passed to _endthreadex(). + (ptw32_exit): Move thread entry delete call from ptw32_vacuum() + into here. Add more explanation of thread entry deletion. + (ptw32_exit): Clarify comment. + + * create.c (ptw32_start_call): Change pthread_exit() call to + ptw32_exit() call. + + * exit.c (ptw32_vacuum): Add thread entry deletion code + moved from ptw32_start_call(). See next item. + (pthread_exit): Remove longjmp(). Add mutex lock around thread table + manipulation code. This routine now calls _enthreadex(). + + * create.c (ptw32_start_call): Remove setjmp() call and move + cleanup code out. Call pthread_exit(NULL) to terminate the thread. + +1998-07-26 Ben Elliston <bje@cygnus.com> + + * tsd.c (pthread_getspecific): Update comments. + + * mutex.c (pthread_mutexattr_setpshared): Not supported; remove. + (pthread_mutexattr_getpshared): Likewise. + + * pthread.h (pthread_mutexattr_setpshared): Remove prototype. + (pthread_mutexattr_getpshared): Likewise. + +Sun Jul 26 00:09:59 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * sync.c: Rename all instances of ptw32_count_mutex to + ptw32_table_mutex. + + * implement.h: Rename ptw32_count_mutex to + ptw32_table_mutex. + + * global.c: Rename ptw32_count_mutex to + ptw32_table_mutex. + + * create.c (pthread_create): Add critical sections. + (ptw32_start_call): Rename ptw32_count_mutex to + ptw32_table_mutex. + + * cancel.c (pthread_setcancelstate): Fix indirection bug and rename + "this" to "us". + + * signal.c (pthread_sigmask): Rename "this" to "us" and fix some + minor syntax errors. Declare "us" and initialise it. + + * sync.c (pthread_detach): Rename "this" to "target". + + * pthread.h: Converting PTHREAD_* defines to alias the (const int) + values in global.c. + + * global.c: Started converting PTHREAD_* defines to (const int) as + a part of making the eventual pthreads DLL binary compatible + through version changes. + + * condvar.c (cond_wait): Add cancelation point. This applies the + point to both pthread_cond_wait() and pthread_cond_timedwait(). + + * exit.c (pthread_exit): Rename "this" to "us". + + * implement.h: Add comment. + + * sync.c (pthread_join): I've satisfied myself that pthread_detach() + does set the detached attribute in the thread entry attributes + to PTHREAD_CREATE_DETACHED. "if" conditions were changed to test + that attribute instead of a separate flag. + + * create.c (pthread_create): Rename "this" to "us". + (pthread_create): cancelstate and canceltype are not attributes + so the copy to thread entry attribute storage was removed. + Only the thread itself can change it's cancelstate or canceltype, + ie. the thread must exist already. + + * private.c (ptw32_delete_thread_entry): Mutex locks removed. + Mutexes must be applied at the caller level. + (ptw32_new_thread_entry): Ditto. + (ptw32_new_thread_entry): Init cancelstate, canceltype, and + cancel_pending to default values. + (ptw32_new_thread_entry): Rename "this" to "new". + (ptw32_find_thread_entry): Rename "this" to "entry". + (ptw32_delete_thread_entry): Rename "thread_entry" to "entry". + + * create.c (ptw32_start_call): Mutexes changed to + ptw32_count_mutex. All access to the threads table entries is + under the one mutex. Otherwise chaos reigns. + +Sat Jul 25 23:16:51 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * implement.h (ptw32_threads_thread): Move cancelstate and + canceltype members out of pthread_attr_t into here. + + * fork.c (fork): Add comment. + +1998-07-25 Ben Elliston <bje@cygnus.com> + + * fork.c (fork): Autoconfiscate. + +Sat Jul 25 00:00:13 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * create.c (ptw32_start_call): Set thread priority. Ensure our + thread entry is removed from the thread table but only if + pthread_detach() was called and there are no waiting joins. + (pthread_create): Set detach flag in thread entry if the + thread is created PTHREAD_CREATE_DETACHED. + + * pthread.h (pthread_attr_t): Rename member "detachedstate". + + * attr.c (pthread_attr_init): Rename attr members. + + * exit.c (pthread_exit): Fix indirection mistake. + + * implement.h (PTW32_THREADS_TABLE_INDEX): Add. + + * exit.c (ptw32_vacuum): Fix incorrect args to + ptw32_handler_pop_all() calls. + Make thread entry removal conditional. + + * sync.c (pthread_join): Add multiple join and async detach handling. + + * implement.h (PTW32_THREADS_TABLE_INDEX): Add. + + * global.c (ptw32_threads_mutex_table): Add. + + * implement.h (ptw32_once_flag): Remove. + (ptw32_once_lock): Ditto. + (ptw32_threads_mutex_table): Add. + + * global.c (ptw32_once_flag): Remove. + (ptw32_once_lock): Ditto. + + * sync.c (pthread_join): Fix tests involving new return value + from ptw32_find_thread_entry(). + (pthread_detach): Ditto. + + * private.c (ptw32_find_thread_entry): Failure return code + changed from -1 to NULL. + +Fri Jul 24 23:09:33 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * create.c (pthread_create): Change . to -> in sigmask memcpy() args. + + * pthread.h: (pthread_cancel): Add function prototype. + (pthread_testcancel): Ditto. + +1998-07-24 Ben Elliston <bje@cygnus.com> + + * pthread.h (pthread_condattr_t): Rename dummy structure member. + (pthread_mutexattr_t): Likewise. + +Fri Jul 24 21:13:55 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * cancel.c (pthread_cancel): Implement. + (pthread_testcancel): Implement. + + * exit.c (pthread_exit): Add comment explaining the longjmp(). + + * implement.h (ptw32_threads_thread_t): New member cancelthread. + (PTW32_YES): Define. + (PTW32_NO): Define. + (RND_SIZEOF): Remove. + + * create.c (pthread_create): Rename cancelability to cancelstate. + + * pthread.h (pthread_attr_t): Rename cancelability to cancelstate. + (PTHREAD_CANCELED): Define. + +1998-07-24 Ben Elliston <bje@cygnus.com> + + * pthread.h (SIG_BLOCK): Define if not already defined. + (SIG_UNBLOCK): Likewise. + (SIG_SETMASK): Likewise. + (pthread_attr_t): Add signal mask member. + (pthread_sigmask): Add function prototype. + + * signal.c (pthread_sigmask): Implement. + + * create.c: #include <string.h> to get a prototype for memcpy(). + (pthread_create): New threads inherit their creator's signal + mask. Copy the signal mask to the new thread structure if we know + about signals. + +Fri Jul 24 16:33:17 1998 Ross Johnson <rpj@swan.canberra.edu.au> + + * fork.c (pthread_atfork): Add all the necessary push calls. + Local implementation semantics: + If we get an ENOMEM at any time then ALL handlers + (including those from previous pthread_atfork() calls) will be + popped off each of the three atfork stacks before we return. + (fork): Add all the necessary pop calls. Add the thread cancellation + and join calls to the child fork. + Add #includes. + + * implement.h: (ptw32_handler_push): Fix return type and stack arg + type in prototype. + (ptw32_handler_pop): Fix stack arg type in prototype. + (ptw32_handler_pop_all): Fix stack arg type in prototype. + + * cleanup.c (ptw32_handler_push): Change return type to int and + return ENOMEM if malloc() fails. + + * sync.c (pthread_detach): Use equality test, not assignment. + + * create.c (ptw32_start_call): Add call to Win32 CloseHandle() + if thread is detached. + +1998-07-24 Ben Elliston <bje@cygnus.com> + + * sync.c (pthread_detach): Close the Win32 thread handle to + emulate detached (or daemon) threads. + +Fri Jul 24 03:00:25 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * sync.c (pthread_join): Save valueptr arg in joinvalueptr for + pthread_exit() to use. + + * private.c (ptw32_new_thread_entry): Initialise joinvalueptr to + NULL. + + * create.c (ptw32_start_call): Rewrite to facilitate joins. + pthread_exit() will do a longjmp() back to here. Does appropriate + cleanup and exit/return from the thread. + (pthread_create): _beginthreadex() now passes a pointer to our + thread table entry instead of just the call member of that entry. + + * implement.h (ptw32_threads_thread): New member + void ** joinvalueptr. + (ptw32_call_t): New member jmpbuf env. + + * exit.c (pthread_exit): Major rewrite to handle joins and handing + value pointer to joining thread. Uses longjmp() back to + ptw32_start_call(). + + * create.c (pthread_create): Ensure values of new attribute members + are copied to the thread attribute object. + + * attr.c (pthread_attr_destroy): Fix merge conflicts. + (pthread_attr_getdetachstate): Fix merge conflicts. + (pthread_attr_setdetachstate): Fix merge conflicts. + + * pthread.h: Fix merge conflicts. + + * sync.c (pthread_join): Fix merge conflicts. + +Fri Jul 24 00:21:21 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * sync.c (pthread_join): Add check for valid and joinable + thread. + (pthread_detach): Implement. After checking for a valid and joinable + thread, it's still a no-op. + + * private.c (ptw32_find_thread_entry): Bug prevented returning + an error value in some cases. + + * attr.c (pthread_attr_setdetachedstate): Implement. + (pthread_attr_getdetachedstate): Implement. + + * implement.h: Move more hidden definitions into here from + pthread.h. + +1998-07-24 Ben Elliston <bje@cygnus.com> + + * pthread.h (PTHREAD_CREATE_JOINABLE): Define. + (PTHREAD_CREATE_DETACHED): Likewise. + (pthread_attr_t): Add new structure member `detached'. + (pthread_attr_getdetachstate): Add function prototype. + (pthread_attr_setdetachstate): Likewise. + + * sync.c (pthread_join): Return if the target thread is detached. + + * attr.c (pthread_attr_init): Initialise cancelability and + canceltype structure members. + (pthread_attr_getdetachstate): Implement. + (pthread_attr_setdetachstate): Likewise. + + * implement.h (PTW32_CANCEL_DEFAULTS): Remove. Bit fields + proved to be too cumbersome. Set the defaults in attr.c using the + public PTHREAD_CANCEL_* constants. + + * cancel.c: New file. + + * pthread.h (sched_param): Define this type. + (pthread_attr_getschedparam): Add function prototype. + (pthread_attr_setschedparam): Likewise. + (pthread_setcancelstate): Likewise. + (pthread_setcanceltype): Likewise. + (sched_get_priority_min): Likewise. + (sched_get_priority_max): Likewise. + (pthread_mutexattr_setprotocol): Remove; not supported. + (pthread_mutexattr_getprotocol): Likewise. + (pthread_mutexattr_setprioceiling): Likewise. + (pthread_mutexattr_getprioceiling): Likewise. + (pthread_attr_t): Add canceltype member. Update comments. + (SCHED_OTHER): Define this scheduling policy constant. + (SCHED_FIFO): Likewise. + (SCHED_RR): Likewise. + (SCHED_MIN): Define the lowest possible value for this constant. + (SCHED_MAX): Likewise, the maximum possible value. + (PTHREAD_CANCEL_ASYNCHRONOUS): Redefine. + (PTHREAD_CANCEL_DEFERRED): Likewise. + + * sched.c: New file. + (pthread_setschedparam): Implement. + (pthread_getschedparam): Implement. + (sched_get_priority_max): Validate policy argument. + (sched_get_priority_min): Likewise. + + * mutex.c (pthread_mutexattr_setprotocol): Remove; not supported. + (pthread_mutexattr_getprotocol): Likewise. + (pthread_mutexattr_setprioceiling): Likewise. + (pthread_mutexattr_getprioceiling): Likewise. + +Fri Jul 24 00:21:21 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * create.c (pthread_create): Arg to ptw32_new_thread_entry() + changed. See next entry. Move mutex locks out. Changes made yesterday + and today allow us to start the new thread running rather than + temporarily suspended. + + * private.c (ptw32_new_thread_entry): ptw32_thread_table + was changed back to a table of thread structures rather than pointers. + As such we're trading storage for increaded speed. This routine + was modified to work with the new table. Mutex lock put in around + global data accesses. + (ptw32_find_thread_entry): Ditto + (ptw32_delete_thread_entry): Ditto + +Thu Jul 23 23:25:30 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * global.c: New. Global data objects declared here. These moved from + pthread.h. + + * pthread.h: Move implementation hidden definitions into + implement.h. + + * implement.h: Move implementation hidden definitions from + pthread.h. Add constants to index into the different handler stacks. + + * cleanup.c (ptw32_handler_push): Simplify args. Restructure. + (ptw32_handler_pop): Simplify args. Restructure. + (ptw32_handler_pop_all): Simplify args. Restructure. + +Wed Jul 22 00:16:22 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * attr.c, implement.h, pthread.h, ChangeLog: Resolve CVS merge + conflicts. + + * private.c (ptw32_find_thread_entry): Changes to return type + to support leaner ptw32_threads_table[] which now only stores + ptw32_thread_thread_t *. + (ptw32_new_thread_entry): Internal changes. + (ptw32_delete_thread_entry): Internal changes to avoid contention. + Calling routines changed accordingly. + + * pthread.h: Modified cleanup macros to use new generic push and pop. + Added destructor and atfork stacks to ptw32_threads_thread_t. + + * cleanup.c (ptw32_handler_push, ptw32_handler_pop, + ptw32_handler_pop_all): Renamed cleanup push and pop routines + and made generic to handle destructors and atfork handlers as + well. + + * create.c (ptw32_start_call): New function is a wrapper for + all new threads. It allows us to do some cleanup when the thread + returns, ie. that is otherwise only done if the thread is cancelled. + + * exit.c (ptw32_vacuum): New function contains code from + pthread_exit() that we need in the new ptw32_start_call() + as well. + + * implement.h: Various additions and minor changes. + + * pthread.h: Various additions and minor changes. + Change cleanup handler macros to use generic handler push and pop + functions. + + * attr.c: Minor mods to all functions. + (is_attr): Implemented missing function. + + * create.c (pthread_create): More clean up. + + * private.c (ptw32_find_thread_entry): Implement. + (ptw32_delete_thread_entry): Implement. + (ptw32_new_thread_entry): Implement. + These functions manipulate the implementations internal thread + table and are part of general code cleanup and modularisation. + They replace ptw32_getthreadindex() which was removed. + + * exit.c (pthread_exit): Changed to use the new code above. + + * pthread.h: Add cancelability constants. Update comments. + +1998-07-22 Ben Elliston <bje@cygnus.com> + + * attr.c (pthread_setstacksize): Update test of attr argument. + (pthread_getstacksize): Likewise. + (pthread_setstackaddr): Likewise. + (pthread_getstackaddr): Likewise. + (pthread_attr_init): No need to allocate any storage. + (pthread_attr_destroy): No need to free any storage. + + * mutex.c (is_attr): Not likely to be needed; remove. + (remove_attr): Likewise. + (insert_attr): Likewise. + + * implement.h (ptw32_mutexattr_t): Moved to a public definition + in pthread.h. There was little gain in hiding these details. + (ptw32_condattr_t): Likewise. + (ptw32_attr_t): Likewise. + + * pthread.h (pthread_atfork): Add function prototype. + (pthread_attr_t): Moved here from implement.h. + + * fork.c (pthread_atfork): Preliminary implementation. + (ptw32_fork): Likewise. + +Wed Jul 22 00:16:22 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * cleanup.c (ptw32_cleanup_push): Implement. + (ptw32_cleanup_pop): Implement. + (ptw32_do_cancellation): Implement. + These are private to the implementation. The real cleanup functions + are macros. See below. + + * pthread.h (pthread_cleanup_push): Implement as a macro. + (pthread_cleanup_pop): Implement as a macro. + Because these are macros which start and end a block, the POSIX scoping + requirement is observed. See the comment in the file. + + * exit.c (pthread_exit): Refine the code. + + * create.c (pthread_create): Code cleanup. + + * implement.h (RND_SIZEOF): Add RND_SIZEOF(T) to round sizeof(T) + up to multiple of DWORD. + Add function prototypes. + + * private.c (ptw32_getthreadindex): "*thread" should have been + "thread". Detect empty slot fail condition. + +1998-07-20 Ben Elliston <bje@cygnus.com> + + * misc.c (pthread_once): Implement. Don't use a per-application + flag and mutex--make `pthread_once_t' contain these elements in + their structure. The earlier version had incorrect semantics. + + * pthread.h (ptw32_once_flag): Add new variable. Remove. + (ptw32_once_lock): Add new mutex lock to ensure integrity of + access to ptw32_once_flag. Remove. + (pthread_once): Add function prototype. + (pthread_once_t): Define this type. + +Mon Jul 20 02:31:05 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * private.c (ptw32_getthreadindex): Implement. + + * pthread.h: Add application static data dependent on + _PTHREADS_BUILD_DLL define. This is needed to avoid allocating + non-sharable static data within the pthread DLL. + + * implement.h: Add ptw32_cleanup_stack_t, ptw32_cleanup_node_t + and PTW32_HASH_INDEX. + + * exit.c (pthread_exit): Begin work on cleanup and de-allocate + thread-private storage. + + * create.c (pthread_create): Add thread to thread table. + Keep a thread-private copy of the attributes with default values + filled in when necessary. Same for the cleanup stack. Make + pthread_create C run-time library friendly by using _beginthreadex() + instead of CreateThread(). Fix error returns. + +Sun Jul 19 16:26:23 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * implement.h: Rename pthreads_thread_count to ptw32_threads_count. + Create ptw32_threads_thread_t struct to keep thread specific data. + + * create.c: Rename pthreads_thread_count to ptw32_threads_count. + (pthread_create): Handle errors from CreateThread(). + +1998-07-19 Ben Elliston <bje@cygnus.com> + + * condvar.c (pthread_cond_wait): Generalise. Moved from here .. + (cond_wait): To here. + (pthread_cond_timedwait): Implement; use generalised cond_wait(). + + * pthread.h (pthread_key_t): Define this type. + (pthread_key_create): Add function prototype. + (pthread_setspecific): Likewise. + (pthread_getspecific): Likwise. + (pthread_key_delete): Likewise. + + * tsd.c (pthread_key_create): Implement. + (pthread_setspecific): Likewise. + (pthread_getspecific): Likewise. + (pthread_key_delete): Likewise. + + * mutex.c (pthread_mutex_trylock): Return ENOSYS if this function + is called on a Win32 platform which is not Windows NT. + +1998-07-18 Ben Elliston <bje@cygnus.com> + + * condvar.c (pthread_condattr_init): Do not attempt to malloc any + storage; none is needed now that condattr_t is an empty struct. + (pthread_condattr_destory): Likewise; do not free storage. + (pthread_condattr_setpshared): No longer supported; return ENOSYS. + (pthread_condattr_getpshared): Likewise. + (pthread_cond_init): Implement with help from Douglas Schmidt. + Remember to initialise the cv's internal mutex. + (pthread_cond_wait): Likewise. + (pthread_cond_signal): Likewise. + (pthread_cond_broadcast): Likewise. + (pthread_cond_timedwait): Preliminary implementation, but I need + to see some API documentation for `WaitForMultipleObject'. + (pthread_destory): Implement. + + * pthread.h (pthread_cond_init): Add function protoype. + (pthread_cond_broadcast): Likewise. + (pthread_cond_signal): Likewise. + (pthread_cond_timedwait): Likewise. + (pthread_cond_wait): Likewise. + (pthread_cond_destroy): Likewise. + (pthread_cond_t): Define this type. Fix for u_int. Do not assume + that the mutex contained withing the pthread_cond_t structure will + be a critical section. Use our new POSIX type! + + * implement.h (ptw32_condattr_t): Remove shared attribute. + +1998-07-17 Ben Elliston <bje@cygnus.com> + + * pthread.h (PTHREADS_PROCESS_PRIVATE): Remove. + (PTHREAD_PROCESS_SHARED): Likewise. No support for mutexes shared + across processes for now. + (pthread_mutex_t): Use a Win32 CRITICAL_SECTION type for better + performance. + + * implement.h (ptw32_mutexattr_t): Remove shared attribute. + + * mutex.c (pthread_mutexattr_setpshared): This optional function + is no longer supported, since we want to implement POSIX mutex + variables using the much more efficient Win32 critical section + primitives. Critical section objects in Win32 cannot be shared + between processes. + (pthread_mutexattr_getpshared): Likewise. + (pthread_mutexattr_init): No need to malloc any storage; the + attributes structure is now empty. + (pthread_mutexattr_destroy): This is now a nop. + (pthread_mutex_init): Use InitializeCriticalSection(). + (pthread_mutex_destroy): Use DeleteCriticalSection(). + (pthread_mutex_lock): Use EnterCriticalSection(). + (pthread_mutex_trylock): Use TryEnterCriticalSection(). This is + not supported by Windows 9x, but trylock is a hack anyway, IMHO. + (pthread_mutex_unlock): Use LeaveCriticalSection(). + +1998-07-14 Ben Elliston <bje@cygnus.com> + + * attr.c (pthread_attr_setstacksize): Implement. + (pthread_attr_getstacksize): Likewise. + (pthread_attr_setstackaddr): Likewise. + (pthread_attr_getstackaddr): Likewise. + (pthread_attr_init): Likewise. + (pthread_attr_destroy): Likewise. + + * condvar.c (pthread_condattr_init): Add `_cond' to function name. + + * mutex.c (pthread_mutex_lock): Add `_mutex' to function name. + (pthread_mutex_trylock): Likewise. + (pthread_mutex_unlock): Likewise. + + * pthread.h (pthread_condattr_setpshared): Fix typo. + (pthread_attr_init): Add function prototype. + (pthread_attr_destroy): Likewise. + (pthread_attr_setstacksize): Likewise. + (pthread_attr_getstacksize): Likewise. + (pthread_attr_setstackaddr): Likewise. + (pthread_attr_getstackaddr): Likewise. + +Mon Jul 13 01:09:55 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * implement.h: Wrap in #ifndef _IMPLEMENT_H + + * create.c (pthread_create): Map stacksize attr to Win32. + + * mutex.c: Include implement.h + +1998-07-13 Ben Elliston <bje@cygnus.com> + + * condvar.c (pthread_condattr_init): Implement. + (pthread_condattr_destroy): Likewise. + (pthread_condattr_setpshared): Likewise. + (pthread_condattr_getpshared): Likewise. + + * implement.h (PTHREAD_THREADS_MAX): Remove trailing semicolon. + (PTHREAD_STACK_MIN): Specify; needs confirming. + (ptw32_attr_t): Define this type. + (ptw32_condattr_t): Likewise. + + * pthread.h (pthread_mutex_t): Define this type. + (pthread_condattr_t): Likewise. + (pthread_mutex_destroy): Add function prototype. + (pthread_lock): Likewise. + (pthread_trylock): Likewise. + (pthread_unlock): Likewise. + (pthread_condattr_init): Likewise. + (pthread_condattr_destroy): Likewise. + (pthread_condattr_setpshared): Likewise. + (pthread_condattr_getpshared): Likewise. + + * mutex.c (pthread_mutex_init): Implement. + (pthread_mutex_destroy): Likewise. + (pthread_lock): Likewise. + (pthread_trylock): Likewise. + (pthread_unlock): Likewise. + +1998-07-12 Ben Elliston <bje@cygnus.com> + + * implement.h (ptw32_mutexattr_t): Define this implementation + internal type. Application programmers only see a mutex attribute + object as a void pointer. + + * pthread.h (pthread_mutexattr_t): Define this type. + (pthread_mutexattr_init): Add function prototype. + (pthread_mutexattr_destroy): Likewise. + (pthread_mutexattr_setpshared): Likewise. + (pthread_mutexattr_getpshared): Likewise. + (pthread_mutexattr_setprotocol): Likewise. + (pthread_mutexattr_getprotocol): Likewise. + (pthread_mutexattr_setprioceiling): Likewise. + (pthread_mutexattr_getprioceiling): Likewise. + (PTHREAD_PROCESS_PRIVATE): Define. + (PTHREAD_PROCESS_SHARED): Define. + + * mutex.c (pthread_mutexattr_init): Implement. + (pthread_mutexattr_destroy): Implement. + (pthread_mutexattr_setprotocol): Implement. + (pthread_mutexattr_getprotocol): Likewise. + (pthread_mutexattr_setprioceiling): Likewise. + (pthread_mutexattr_getprioceiling): Likewise. + (pthread_mutexattr_setpshared): Likewise. + (pthread_mutexattr_getpshared): Likewise. + (insert_attr): New function; very preliminary implementation! + (is_attr): Likewise. + (remove_attr): Likewise. + +Sat Jul 11 14:48:54 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * implement.h: Preliminary implementation specific defines. + + * create.c (pthread_create): Preliminary implementation. + +1998-07-11 Ben Elliston <bje@cygnus.com> + + * sync.c (pthread_join): Implement. + + * misc.c (pthread_equal): Likewise. + + * pthread.h (pthread_join): Add function prototype. + (pthread_equal): Likewise. + +1998-07-10 Ben Elliston <bje@cygnus.com> + + * misc.c (pthread_self): Implement. + + * exit.c (pthread_exit): Implement. + + * pthread.h (pthread_exit): Add function prototype. + (pthread_self): Likewise. + (pthread_t): Define this type. + +1998-07-09 Ben Elliston <bje@cygnus.com> + + * create.c (pthread_create): A dummy stub right now. + + * pthread.h (pthread_create): Add function prototype. @@ -3,7 +3,7 @@ */ VERSION = - -CCFLAGS = -g $(CC.DLL) +CCFLAGS = -V -g $(CC.DLL) PTW32_BUILD == 1 _MT == 1 _timeb == timeb diff --git a/Nmakefile.tests b/Nmakefile.tests index 5ba32ff..4829938 100644 --- a/Nmakefile.tests +++ b/Nmakefile.tests @@ -78,15 +78,21 @@ cleanup3:: cleanup3.c exception1:: exception1.c exception2:: exception2.c exception3:: exception3.c +priority1:: priority1.c +priority2:: priority2.c +inherit1:: inherit1.c +benchtest1:: benchtest1.c +benchtest2:: benchtest2.c loadfree: :test: +mutex5 :test: loadfree mutex1 :test: loadfree mutex2 :test: loadfree exit1 :test: loadfree condvar1 :test: loadfree self1 :test: loadfree condvar2 :test: condvar1 -create1. :test: mutex2 +create1 :test: mutex2 cancel1 :test: create1 cancel2 :test: cancel1 mutex3 :test: create1 @@ -124,8 +130,12 @@ cleanup0 :test: cancel5 cleanup1 :test: cleanup0 cleanup2 :test: cleanup1 cleanup3 :test: cleanup2 +priority1 :test: join1 +priority2 :test: priority1 +inherit1 :test: join1 exception1 :test: cancel4 exception2 :test: exception1 +benchtest1 :test: mutex3 +benchtest2 :test: benchtest1 exception3 :test: exception2 -tryentercs :test: -tryentercs2 :test: + @@ -346,8 +346,13 @@ pthread_attr_init(pthread_attr_t *attr) memset(&(attr_result->sigmask), 0, sizeof(sigset_t)); #endif /* HAVE_SIGSET_T */ - /* Priority uses Win32 priority values. */ - attr_result->priority = THREAD_PRIORITY_NORMAL; + /* + * Win32 sets new threads to THREAD_PRIORITY_NORMAL and + * not to that of the parent thread. We choose to default to + * this arrangement. + */ + attr_result->param.sched_priority = THREAD_PRIORITY_NORMAL; + attr_result->inheritsched = PTHREAD_EXPLICIT_SCHED; attr_result->valid = PTW32_ATTR_VALID; @@ -498,6 +503,7 @@ pthread_attr_setdetachstate(pthread_attr_t *attr, return 0; } + int pthread_attr_setscope(pthread_attr_t *attr, int contentionscope) { @@ -84,10 +84,10 @@ pthread_create (pthread_t * tid, thread->cancelEvent = CreateEvent ( - 0, - (int) TRUE, /* manualReset */ - (int) FALSE, /* setSignaled */ - NULL); + 0, + (int) TRUE, /* manualReset */ + (int) FALSE, /* setSignaled */ + NULL); if (thread->cancelEvent == NULL) { @@ -142,16 +142,34 @@ pthread_create (pthread_t * tid, thread->threadH = threadH = (HANDLE) _beginthreadex ( - (void *) NULL, /* No security info */ - (unsigned) stackSize, /* default stack size */ - ptw32_threadStart, - parms, - (unsigned) CREATE_SUSPENDED, - (unsigned *) &(thread->thread)); - - if (threadH != 0 && run) + (void *) NULL, /* No security info */ + (unsigned) stackSize, /* default stack size */ + ptw32_threadStart, + parms, + (unsigned) CREATE_SUSPENDED, + (unsigned *) &(thread->thread)); + + if (threadH != 0) { - ResumeThread(threadH); + /* + * PTHREAD_EXPLICIT_SCHED is the default because Win32 threads + * don't inherit their creator's priority. They are started with + * THREAD_PRIORITY_NORMAL (win32 value). The result of not supplying + * an 'attr' arg to pthread_create() is equivalent to defaulting to + * PTHREAD_EXPLICIT_SCHED and priority THREAD_PRIORITY_NORMAL. + */ + if (attr != NULL && *attr != NULL) + { + (void) SetThreadPriority(thread->threadH, + PTHREAD_INHERIT_SCHED == (*attr)->inheritsched + ? GetThreadPriority(GetCurrentThread()) + : (*attr)->param.sched_priority ); + } + + if (run) + { + ResumeThread(threadH); + } } #else /* __MINGW32__ && ! __MSVCRT__ */ @@ -164,9 +182,9 @@ pthread_create (pthread_t * tid, thread->threadH = threadH = (HANDLE) _beginthread ( - ptw32_threadStart, - (unsigned) stackSize, /* default stack size */ - parms); + ptw32_threadStart, + (unsigned) stackSize, /* default stack size */ + parms); /* * Make the return code match _beginthreadex's. @@ -175,14 +193,32 @@ pthread_create (pthread_t * tid, { thread->threadH = threadH = 0; } - else if (! run) + else { - /* - * beginthread does not allow for create flags, so we do it now. - * Note that beginthread itself creates the thread in SUSPENDED - * mode, and then calls ResumeThread to start it. + if (! run) + { + /* + * beginthread does not allow for create flags, so we do it now. + * Note that beginthread itself creates the thread in SUSPENDED + * mode, and then calls ResumeThread to start it. + */ + SuspendThread (threadH); + } + + /* + * PTHREAD_EXPLICIT_SCHED is the default because Win32 threads + * don't inherit their creator's priority. They are started with + * THREAD_PRIORITY_NORMAL (win32 value). The result of not supplying + * an 'attr' arg to pthread_create() is equivalent to defaulting to + * PTHREAD_EXPLICIT_SCHED and priority THREAD_PRIORITY_NORMAL. */ - SuspendThread (threadH); + if (attr != NULL && *attr != NULL) + { + (void) SetThreadPriority(thread->threadH, + PTHREAD_INHERIT_SCHED == (*attr)->inheritsched + ? GetThreadPriority(GetCurrentThread()) + : (*attr)->param.sched_priority ); + } } (void) pthread_mutex_unlock(&thread->cancelLock); diff --git a/implement.h b/implement.h index da094c8..e2acba3 100644 --- a/implement.h +++ b/implement.h @@ -35,8 +35,9 @@ #include <limits.h> #endif -/* changed include from <semaphore.h> to use local file during development */ +/* use local include files during development */ #include "semaphore.h" +#include "sched.h" typedef enum { /* @@ -107,7 +108,8 @@ struct pthread_attr_t_ { void *stackaddr; size_t stacksize; int detachstate; - int priority; + struct sched_param param; + int inheritsched; #if HAVE_SIGSET_T sigset_t sigmask; #endif /* HAVE_SIGSET_T */ @@ -319,7 +321,12 @@ struct ThreadKeyAssoc { #define PTW32_EPS_EXIT (1) #define PTW32_EPS_CANCEL (2) -#define PTW32_MUTEX_LOCK_IDX_INIT (-1) +/* Mutex constants */ +enum { + PTW32_MUTEX_LOCK_IDX_INIT = -1, + PTW32_MUTEX_OWNER_ANONYMOUS = 1 +}; + /* Declared in global.c */ extern int ptw32_processInitialized; @@ -180,8 +180,14 @@ pthread_mutex_destroy(pthread_mutex_t *mutex) * The mutex type may not be RECURSIVE therefore trylock may return EBUSY if * we already own the mutex. Here we are assuming that it's OK to destroy * a mutex that we own and have locked recursively. Is this correct? + * + * For FAST mutexes we record the owner as ANONYMOUS for speed. In this + * case we assume that the thread calling pthread_mutex_destroy() is the + * owner, if the mutex is owned at all. */ - if (result == 0 || pthread_equal( mx->ownerThread, pthread_self() ) ) + if (result == 0 + || mx->ownerThread == (pthread_t) PTW32_MUTEX_OWNER_ANONYMOUS + || pthread_equal( mx->ownerThread, pthread_self() ) ) { /* * FIXME!!! @@ -634,7 +640,9 @@ pthread_mutex_lock(pthread_mutex_t *mutex) if( 0 == InterlockedIncrement( &mx->lock_idx ) ) { mx->recursive_count = 1; - mx->ownerThread = pthread_self(); + mx->ownerThread = (mx->kind != PTHREAD_MUTEX_FAST_NP + ? pthread_self() + : (pthread_t) PTW32_MUTEX_OWNER_ANONYMOUS); } else { @@ -656,7 +664,9 @@ pthread_mutex_lock(pthread_mutex_t *mutex) { WaitForSingleObject( mx->wait_sema, INFINITE ); mx->recursive_count = 1; - mx->ownerThread = pthread_self(); + mx->ownerThread = (mx->kind != PTHREAD_MUTEX_FAST_NP + ? pthread_self() + : (pthread_t) PTW32_MUTEX_OWNER_ANONYMOUS); } } @@ -683,10 +693,11 @@ pthread_mutex_unlock(pthread_mutex_t *mutex) */ if (mx != (pthread_mutex_t) PTW32_OBJECT_AUTO_INIT) { - if (pthread_equal(mx->ownerThread, pthread_self())) + if (mx->ownerThread == (pthread_t) PTW32_MUTEX_OWNER_ANONYMOUS + || pthread_equal(mx->ownerThread, pthread_self())) { - if( mx->kind != PTHREAD_MUTEX_RECURSIVE_NP || - 0 == --mx->recursive_count ) + if( mx->kind != PTHREAD_MUTEX_RECURSIVE_NP + || 0 == --mx->recursive_count ) { mx->ownerThread = NULL; @@ -748,7 +759,9 @@ pthread_mutex_trylock(pthread_mutex_t *mutex) if( 0 == InterlockedIncrement( &mx->lock_idx ) ) { mx->recursive_count = 1; - mx->ownerThread = pthread_self(); + mx->ownerThread = (mx->kind != PTHREAD_MUTEX_FAST_NP + ? pthread_self() + : (pthread_t) PTW32_MUTEX_OWNER_ANONYMOUS); } else { diff --git a/pthread.def b/pthread.def index 15383aa..2915077 100644 --- a/pthread.def +++ b/pthread.def @@ -1,5 +1,5 @@ ; pthread.def
-; Last updated: $Date: 2001/06/05 07:48:19 $
+; Last updated: $Date: 2001/07/01 13:23:10 $
; Currently unimplemented functions are commented out.
@@ -10,23 +10,23 @@ ptw32_processInitialize ;pthread_atfork
pthread_attr_destroy
pthread_attr_getdetachstate
-;pthread_attr_getinheritsched
+pthread_attr_getinheritsched
pthread_attr_getschedparam
-;pthread_attr_getschedpolicy
+pthread_attr_getschedpolicy
pthread_attr_getscope
pthread_attr_getstackaddr
pthread_attr_getstacksize
pthread_attr_init
pthread_attr_setdetachstate
-;pthread_attr_setinheritsched
+pthread_attr_setinheritsched
pthread_attr_setschedparam
-;pthread_attr_setschedpolicy
+pthread_attr_setschedpolicy
pthread_attr_setscope
pthread_attr_setstackaddr
pthread_attr_setstacksize
pthread_cancel
;
-; These two are implemented as macros
+; These two are implemented as macros in pthread.h
;
;pthread_cleanup_pop
;pthread_cleanup_push
@@ -82,6 +82,9 @@ pthread_testcancel ;
sched_get_priority_min
sched_get_priority_max
+sched_rr_set_interval
+sched_getscheduler
+sched_setscheduler
sched_yield
sem_init
sem_destroy
@@ -22,6 +22,9 @@ #if !defined( PTHREAD_H ) #define PTHREAD_H +#if !defined( PTW32_HEADER ) +#define PTW32_HEADER + #ifdef _UWIN # define HAVE_STRUCT_TIMESPEC 1 # define HAVE_SIGNAL_H 1 @@ -29,6 +32,8 @@ # pragma comment(lib, "pthread") #endif +#endif /* PTW32_HEADER */ + /* * ------------------------------------------------------------- * @@ -120,7 +125,8 @@ #include <setjmp.h> -#ifndef HAVE_STRUCT_TIMESPEC +#if ! defined(HAVE_STRUCT_TIMESPEC) && ! defined(PTW32_TIMESPEC) +#define PTW32_TIMESPEC struct timespec { long tv_sec; long tv_nsec; @@ -145,11 +151,13 @@ struct timespec { #include <winsock.h> #ifdef NEED_ERRNO -#include "need_errno.h" +# include "need_errno.h" #else -#include <errno.h> +# include <errno.h> #endif +#include <sched.h> + /* * In case ETIMEDOUT hasn't been defined above somehow. */ @@ -157,6 +165,15 @@ struct timespec { #define ETIMEDOUT 10060 /* This is the value in winsock.h. */ #endif +/* + * Several systems don't define ENOTSUP. If not, we use + * the same value as Solaris. + */ +#ifndef ENOTSUP +# define ENOTSUP 48 +#endif + + #ifdef __cplusplus extern "C" { @@ -185,7 +202,7 @@ extern "C" * pthread_attr_getstackaddr * pthread_attr_setstackaddr * - * _POSIX_THREAD_PRIORITY_SCHEDULING (not set) + * _POSIX_THREAD_PRIORITY_SCHEDULING (set) * If set, you can use realtime scheduling. * Indicates the availability of: * pthread_attr_getinheritsched @@ -198,8 +215,9 @@ extern "C" * pthread_attr_setscope * pthread_getschedparam * pthread_setschedparam - * pthread_get_priority_max - * pthread_get_priority_min + * sched_get_priority_max + * sched_get_priority_min + * sched_rr_set_interval * * _POSIX_THREAD_PRIO_INHERIT (not set) * If set, you can create priority inheritance @@ -263,16 +281,16 @@ extern "C" #ifndef _POSIX_THREADS #define _POSIX_THREADS #endif -#define _POSIX_THREAD_SAFE_FUNCTIONS +#define _POSIX_THREAD_SAFE_FUNCTIONS #define _POSIX_THREAD_ATTR_STACKSIZE +#define _POSIX_THREAD_PRIORITY_SCHEDULING #if defined( KLUDGE ) /* * The following are not supported */ #define _POSIX_THREAD_ATTR_STACKADDR -#define _POSIX_THREAD_PRIORITY_SCHEDULING #define _POSIX_THREAD_PRIO_INHERIT #define _POSIX_THREAD_PRIO_PROTECT #define _POSIX_THREAD_PROCESS_SHARED @@ -335,36 +353,44 @@ typedef struct pthread_rwlockattr_t_ *pthread_rwlockattr_t; * ==================== */ +enum { /* * pthread_attr_{get,set}detachstate */ -#define PTHREAD_CREATE_JOINABLE 0 -#define PTHREAD_CREATE_DETACHED 1 + PTHREAD_CREATE_JOINABLE = 0, /* Default */ + PTHREAD_CREATE_DETACHED = 1, + +/* + * pthread_attr_{get,set}inheritsched + */ + PTHREAD_INHERIT_SCHED = 0, + PTHREAD_EXPLICIT_SCHED = 1, /* Default */ /* - * pthread_attr{get,set}inheritsched + * pthread_{get,set}scope */ -#define PTHREAD_INHERIT_SCHED 0 -#define PTHREAD_EXPLICIT_SCHED 1 + PTHREAD_SCOPE_PROCESS = 0, + PTHREAD_SCOPE_SYSTEM = 1, /* Default */ /* * pthread_setcancelstate paramters */ -#define PTHREAD_CANCEL_ENABLE 0 -#define PTHREAD_CANCEL_DISABLE 1 + PTHREAD_CANCEL_ENABLE = 0, /* Default */ + PTHREAD_CANCEL_DISABLE = 1, /* * pthread_setcanceltype parameters */ -#define PTHREAD_CANCEL_ASYNCHRONOUS 0 -#define PTHREAD_CANCEL_DEFERRED 1 + PTHREAD_CANCEL_ASYNCHRONOUS = 0, + PTHREAD_CANCEL_DEFERRED = 1, /* Default */ /* * pthread_mutexattr_{get,set}pshared * pthread_condattr_{get,set}pshared */ -#define PTHREAD_PROCESS_PRIVATE 0 -#define PTHREAD_PROCESS_SHARED 1 + PTHREAD_PROCESS_PRIVATE = 0, + PTHREAD_PROCESS_SHARED = 1 +}; /* * ==================== @@ -411,28 +437,6 @@ enum }; -/* - * ==================== - * ==================== - * Scheduling - * ==================== - * ==================== - */ - -/* Thread scheduling policies */ - -#define SCHED_OTHER 0 -#define SCHED_FIFO 1 -#define SCHED_RR 2 - -#define SCHED_MIN SCHED_OTHER -#define SCHED_MAX SCHED_RR - -struct sched_param { - int sched_priority; -}; - - /* There are three implementations of cancel cleanup. * Note that pthread.h is included in both application * compilation units and also internally for the library. @@ -657,6 +661,18 @@ int pthread_attr_getschedparam (const pthread_attr_t *attr, int pthread_attr_setschedparam (pthread_attr_t *attr, const struct sched_param *param); +int pthread_attr_setschedpolicy (pthread_attr_t *, + int); + +int pthread_attr_getschedpolicy (pthread_attr_t *, + int *); + +int pthread_attr_setinheritsched(pthread_attr_t * attr, + int inheritsched); + +int pthread_attr_getinheritsched(pthread_attr_t * attr, + int * inheritsched); + int pthread_attr_setscope (pthread_attr_t *, int); @@ -23,8 +23,6 @@ * MA 02111-1307, USA */ -#define ENOSUP 0 - #include "pthread.h" #include "implement.h" #include "sched.h" @@ -37,19 +35,78 @@ is_attr(const pthread_attr_t *attr) (*attr)->valid != PTW32_ATTR_VALID) ? 1 : 0; } + +int +pthread_attr_setschedpolicy(pthread_attr_t *attr, + int policy) +{ + if (is_attr(attr) != 0) + { + return EINVAL; + } + + if (policy != SCHED_OTHER) + { + return ENOTSUP; + } + + return 0; +} + + +int +pthread_attr_getschedpolicy(pthread_attr_t *attr, + int * policy) +{ + if (is_attr(attr) != 0 || policy == NULL) + { + return EINVAL; + } + + /* + * Validate the policy arg. + * Check that a policy constant wasn't passed rather than &policy. + */ + if (policy <= (int *) SCHED_MAX) + { + return EINVAL; + } + + *policy = SCHED_OTHER; + + return 0; +} + + int pthread_attr_setschedparam(pthread_attr_t *attr, const struct sched_param *param) { + int priority; + if (is_attr(attr) != 0 || param == NULL) { return EINVAL; } - (*attr)->priority = param->sched_priority; + priority = param->sched_priority; + + /* + * Validate priority level. Don't check the + * return values of the function calls because + * we're sure they will succeed. + */ + if (priority < sched_get_priority_min(SCHED_OTHER) || + priority > sched_get_priority_max(SCHED_OTHER)) + { + return EINVAL; + } + + memcpy(&(*attr)->param, param, sizeof(*param)); return 0; } + int pthread_attr_getschedparam(const pthread_attr_t *attr, struct sched_param *param) @@ -59,11 +116,47 @@ pthread_attr_getschedparam(const pthread_attr_t *attr, return EINVAL; } - param->sched_priority = (*attr)->priority; + memcpy(param, &(*attr)->param, sizeof(*param)); return 0; } -int pthread_setschedparam(pthread_t thread, int policy, + +int +pthread_attr_setinheritsched(pthread_attr_t * attr, + int inheritsched) +{ + if (is_attr(attr) != 0) + { + return EINVAL; + } + + if (PTHREAD_INHERIT_SCHED != inheritsched + && PTHREAD_EXPLICIT_SCHED != inheritsched) + { + return EINVAL; + } + + (*attr)->inheritsched = inheritsched; + return 0; +} + + +int +pthread_attr_getinheritsched(pthread_attr_t * attr, + int * inheritsched) +{ + if (is_attr(attr) != 0 || inheritsched == NULL) + { + return EINVAL; + } + + *inheritsched = (*attr)->inheritsched; + return 0; +} + + +int +pthread_setschedparam(pthread_t thread, int policy, const struct sched_param *param) { /* Validate the thread id. */ @@ -81,12 +174,16 @@ int pthread_setschedparam(pthread_t thread, int policy, /* Ensure the policy is SCHED_OTHER. */ if (policy != SCHED_OTHER) { - return ENOSUP; + return ENOTSUP; } - /* Validate priority level. */ - if (param->sched_priority < sched_get_priority_min(policy) || - param->sched_priority > sched_get_priority_max(policy)) + /* + * Validate priority level. Don't check the + * return values of the function calls because + * we're sure they will succeed. + */ + if (param->sched_priority < sched_get_priority_min(SCHED_OTHER) || + param->sched_priority > sched_get_priority_max(SCHED_OTHER)) { return EINVAL; } @@ -97,7 +194,9 @@ int pthread_setschedparam(pthread_t thread, int policy, return 0; } -int pthread_getschedparam(pthread_t thread, int *policy, + +int +pthread_getschedparam(pthread_t thread, int *policy, struct sched_param *param) { int prio; @@ -108,8 +207,11 @@ int pthread_getschedparam(pthread_t thread, int *policy, return EINVAL; } - /* Validate the param structure. */ - if (param == NULL) + /* + * Validate the policy and param args. + * Check that a policy constant wasn't passed rather than &policy. + */ + if (policy <= (int *) SCHED_MAX || param == NULL) { return EINVAL; } @@ -141,14 +243,24 @@ int pthread_getschedparam(pthread_t thread, int *policy, * sched_get_priority_max() returns 1 */ + #define sched_Max(a,b) ((a)<(b)?(b):(a)) #define sched_Min(a,b) ((a)>(b)?(b):(a)) -int sched_get_priority_max(int policy) + +int +sched_get_priority_max(int policy) { if (policy < SCHED_MIN || policy > SCHED_MAX) { - return EINVAL; + errno = EINVAL; + return -1; + } + + if (policy != SCHED_OTHER) + { + errno = ENOTSUP; + return -1; } #if (THREAD_PRIORITY_LOWEST > THREAD_PRIORITY_NORMAL) @@ -160,11 +272,20 @@ int sched_get_priority_max(int policy) #endif } -int sched_get_priority_min(int policy) + +int +sched_get_priority_min(int policy) { if (policy < SCHED_MIN || policy > SCHED_MAX) { - return EINVAL; + errno = EINVAL; + return -1; + } + + if (policy != SCHED_OTHER) + { + errno = ENOTSUP; + return -1; } #if (THREAD_PRIORITY_LOWEST > THREAD_PRIORITY_NORMAL) @@ -176,7 +297,259 @@ int sched_get_priority_min(int policy) #endif } -int sched_yield(void) + +int +sched_rr_get_interval(pid_t pid, struct timespec * interval) + /* + * ------------------------------------------------------ + * DOCPUBLIC + * This function updates the timespec structure + * referenced by the interval argument to contain + * the current quantum for the process executing + * under the SCHED_RR policy. If a process, running under + * the round-robin scheduling policy, runs without + * blocking or yielding for more than this amount of + * time, it may be preempted by another runnable + * process (at the same priority). + * + * If the PID argument is zero, the current execution + * time limit for the calling process is returned. + * + * PARAMETERS + * pid Process identifier. + * + * + * DESCRIPTION + * This function updates the timespec structure + * referenced by the interval argument to contain + * the current quantum for the process executing + * under the SCHED_RR policy. If a process, running under + * the round-robin scheduling policy, runs without + * blocking or yielding for more than this amount of + * time, it may be preempted by another runnable + * process (at the same priority). + * + * If the PID argument is zero, the current execution + * time limit for the calling process is returned. + * + * RESULTS + * We don't support SCHED_RR so this routine always fails. + * + * NOTE: Since this is part of POSIX 1003.1b + * (realtime extensions), it is defined as returning + * -1 if an error occurs and sets errno to the actual + * error. + * + * errno: ESRCH Pid doesn't refer to a valid process. + * EPERM The process referenced by pid does + * not allow query access. + * ENOTSUP SCHED_RR is not supported. + * + * ------------------------------------------------------ + */ +{ + /* + * Provide other valid side-effects + * such as EPERM and ESRCH errors. + */ + if (0 != pid) + { + DWORD selfPid = GetCurrentProcessId(); + + if (pid != selfPid) + { + HANDLE h = OpenProcess(PROCESS_QUERY_INFORMATION, FALSE, pid); + + if (NULL == h) + { + errno = (GetLastError() == (0xFF & ERROR_ACCESS_DENIED) + ? EPERM + : ESRCH ); + + return -1; + } + + (void) CloseHandle(h); + } + } + + /* + * We can't return ENOSYS and stay strictly compliant with the + * standard. We don't support round-robin scheduling so + * we return ENOTSUP instead. This is consistent with + * routines which return ENOTSUP if SCHED_RR is given + * as the policy parameter. + */ + errno = ENOTSUP; + return -1; +} + + +int +sched_setscheduler(pid_t pid, int policy) + /* + * ------------------------------------------------------ + * DOCPUBLIC + * This function returns sets the scheduling policy and + * scheduling parameters of the process specified by pid + * to policy and the parameters specified in the + * sched_param structure pointed to by param, respectively. + * The value of the sched_priority member in the sched_param + * structure is any integer within the inclusive priority + * range for the scheduling policy specified by policy. + * If the value of pid is negative, the behaviour of the + * sched_setscheduler() function is unspecified. + * + * PARAMETERS + * pid Identifier of the process in which the + * policy will be set. + * policy The new policy value. + * + * + * DESCRIPTION + * This function returns sets the scheduling policy and + * scheduling parameters of the process specified by pid + * to policy and the parameters specified in the + * sched_param structure pointed to by param, respectively. + * The value of the sched_priority member in the sched_param + * structure is any integer within the inclusive priority + * range for the scheduling policy specified by policy. + * If the value of pid is negative, the behaviour of the + * sched_setscheduler() function is unspecified. + * + * RESULTS + * SCHED_OTHER on success this is the only possible + * value that can be returned. + * + * NOTE: Since this is part of POSIX 1003.1b + * (realtime extensions), it is defined as returning + * -1 if an error occurs and sets errno to the actual + * error. + * + * errno: ESRCH 'pid' doesn't refer to an existing + * process. + * EPERM The process referenced by pid does + * not allow set access. + * EINVAL 'policy' is not a valid policy value. + * ENOSYS the policy specified is not supported. + * + * ------------------------------------------------------ + */ +{ + /* + * Win32 only has one policy which we call SCHED_OTHER. + * However, we try to provide other valid side-effects + * such as EPERM and ESRCH errors. + */ + if (0 != pid) + { + DWORD selfPid = GetCurrentProcessId(); + + if (pid != selfPid) + { + HANDLE h = OpenProcess(PROCESS_SET_INFORMATION, FALSE, pid); + + if (NULL == h) + { + errno = (GetLastError() == (0xFF & ERROR_ACCESS_DENIED) + ? EPERM + : ESRCH ); + + return -1; + } + + (void) CloseHandle(h); + } + } + + if (policy < SCHED_MIN || policy > SCHED_MAX) + { + errno = EINVAL; + return -1; + } + + if (SCHED_OTHER != policy) + { + errno = ENOSYS; + return -1; + } + + /* + * Don't set anything because there is nothing to set. + * Just return the current (the only possible) value. + */ + return SCHED_OTHER; +} + + +int +sched_getscheduler(pid_t pid) + /* + * ------------------------------------------------------ + * DOCPUBLIC + * This function returns the scheduling policy of the + * process specified by pid. If the value of pid is + * negative, the behaviour of the sched_getscheduler() + * function is unspecified. + * + * PARAMETERS + * pid Process identifier. + * + * + * DESCRIPTION + * This function returns the scheduling policy of the + * process specified by pid. If the value of pid is + * negative, the behaviour of the sched_getscheduler() + * function is unspecified. + * + * RESULTS + * SCHED_OTHER on success this is the only possible + * value that can be returned. + * + * NOTE: Since this is part of POSIX 1003.1b + * (realtime extensions), it is defined as returning + * -1 if an error occurs and sets errno to the actual + * error. + * + * errno: ESRCH Pid doesn't refer to a valid process. + * EPERM The process referenced by pid does + * not allow query access. + * + * ------------------------------------------------------ + */ +{ + /* + * Win32 only has one policy which we call SCHED_OTHER. + * However, we try to provide other valid side-effects + * such as EPERM and ESRCH errors. + */ + if (0 != pid) + { + DWORD selfPid = GetCurrentProcessId(); + + if (pid != selfPid) + { + HANDLE h = OpenProcess(PROCESS_QUERY_INFORMATION, FALSE, pid); + + if (NULL == h) + { + errno = (GetLastError() == (0xFF & ERROR_ACCESS_DENIED) + ? EPERM + : ESRCH ); + + return -1; + } + + (void) CloseHandle(h); + } + } + + return SCHED_OTHER; +} + + +int +sched_yield(void) /* * ------------------------------------------------------ * DOCPUBLIC @@ -196,8 +569,7 @@ int sched_yield(void) * error. * * RESULTS - * 0 successfully created semaphore, - * ENOSYS sched_yield not supported, + * 0 always succeeds * * ------------------------------------------------------ */ @@ -28,6 +28,49 @@ #ifndef _SCHED_H #define _SCHED_H +#if !defined( PTW32_HEADER ) +#define PTW32_HEADER + +#ifdef _UWIN +# define HAVE_STRUCT_TIMESPEC 1 +# define HAVE_SIGNAL_H 1 +# undef HAVE_CONFIG_H +# pragma comment(lib, "pthread") +#endif + +#endif /* PTW32_HEADER */ + +#if defined(__MINGW32__) || defined(_UWIN) +/* For pid_t */ +# include <sys/types.h> +/* Required by Unix 98 - including sched.h makes time.h available */ +# include <time.h> +#else +typedef DWORD pid_t; +#endif + +#if ! defined(HAVE_STRUCT_TIMESPEC) && ! defined(PTW32_TIMESPEC) +#define PTW32_TIMESPEC +struct timespec { + long tv_sec; + long tv_nsec; +}; +#endif /* HAVE_STRUCT_TIMESPEC */ + + +/* Thread scheduling policies */ +enum { + SCHED_OTHER = 0, + SCHED_FIFO, + SCHED_RR, + SCHED_MIN = SCHED_OTHER, + SCHED_MAX = SCHED_RR +}; + +struct sched_param { + int sched_priority; +}; + #ifdef __cplusplus extern "C" { @@ -39,6 +82,11 @@ int sched_get_priority_min (int policy); int sched_get_priority_max (int policy); +int sched_setscheduler (pid_t pid, int policy); + +int sched_getscheduler (pid_t pid); + +int sched_rr_get_interval(pid_t pid, struct timespec * interval); #ifdef __cplusplus } /* End of extern "C" */ diff --git a/tests/ChangeLog b/tests/ChangeLog index 27f8dfe..231d9fe 100644 --- a/tests/ChangeLog +++ b/tests/ChangeLog @@ -1,504 +1,513 @@ -2001-06-8 Ross Johnson <rpj@special.ise.canberra.edu.au>
-
- * mutex5.c: Insert inert change to quell compiler warnings.
- * condvar3_2.c: Remove unused variable.
-
-2001-06-3 Ross Johnson <rpj@special.ise.canberra.edu.au>
-
- * condvar2_1.c: New test.
- * condvar3_1.c: New test.
- * condvar3_2.c: New test.
-
-2001-05-30 Ross Johnson <rpj@special.ise.canberra.edu.au>
-
- * mutex1n.c: New test.
- * mutex1e.c: New test.
- * mutex1r.c: New test.
- * mutex4.c: Now locks and unlocks a mutex.
- * mutex5.c: New test.
- * mutex6.c: New test.
- * mutex6n.c: New test.
- * mutex6e.c: New test.
- * mutex6r.c: New test.
- * Makefile: Added new tests; reorganised.
- * GNUmakefile: Likewise.
- * rwlock6.c: Fix to properly prove read-while-write locking
- and single writer locking.
-
-2001-05-29 Ross Johnson <rpj@special.ise.canberra.edu.au>
-
- * Makefile: Reorganisation.
- * GNUmakefile: Likewise.
- - Thomas Pfaff <tpfaff@gmx.net>
-
- * exception1.c: Add stdio.h include to define fprintf and stderr
- in non-exception C version of main().
- * exception2.c: Likewise.
- * exception3.c: Likewise.
-
- * Makefile (rwlock7): Add new test.
- * GNUmakefile (rwlock7): Add new test.
- * rwlock7.c: New test.
- * rwlock6.c: Changed to test that writer has priority.
-
- * eyal1.c (main): Unlock each mutex_start lock before destroying
- it.
-
-2000-12-29 Ross Johnson <rpj@special.ise.canberra.edu.au>
-
- * GNUmakefile: Add mutex4 test; ensure libpthreadw32.a is
- removed for "clean" target.
- * Makefile: Add mutex4 test.
-
- * exception3.c: Remove SEH code; automatically pass the test
- under SEH (which is an N/A environment).
-
- * mutex4.c: New test.
-
- * eyal1.c (do_work_unit): Add a dummy "if" to force the
- optimiser to retain code; reduce thread work loads.
-
- * condvar8.c (main): Add an additional "assert" for debugging;
- increase pthread_cond_signal timeout.
-
-2000-12-28 Ross Johnson <rpj@special.ise.canberra.edu.au>
-
- * eyal1.c: Increase thread work loads.
- * exception2.c: New test.
- * exception3.c: New test.
- * Makefile: Add new tests exception2.c and exception3.c.
- * GNUmakefile: Likewise.
-
-2000-12-11 Ross Johnson <rpj@special.ise.canberra.edu.au>
-
- * cleanup3.c: Remove unused variable.
- * cleanup2.c: Likewise.
- * exception1.c: Throw an exception rather than use
- a deliberate zero divide so that catch(...) will
- handle it under Mingw32. Mingw32 now builds the
- library correctly to pass all tests - see Thomas
- Pfaff's detailed instructions re needed changes
- to Mingw32 in the Pthreads-Win32 FAQ.
-
-2000-09-08 Ross Johnson <rpj@special.ise.canberra.edu.au>
-
- * cancel5.c: New; tests calling pthread_cancel()
- from the main thread without first creating a
- POSIX thread struct for the non-POSIX main thread
- - this forces pthread_cancel() to create one via
- pthread_self().
- * Makefile (cancel5): Add new test.
- * GNUmakefile (cancel5): Likewise.
-
-2000-08-17 Ross Johnson <rpj@special.ise.canberra.edu.au>
-
- * create2.c: New; Test that pthread_t contains
- the W32 HANDLE before it calls the thread routine
- proper.
-
-2000-08-13 Ross Johnson <rpj@special.ise.canberra.edu.au>
-
- * condvar3.c: Minor change to eliminate compiler
- warning.
-
- * condvar4.c: ditto.
-
- * condvar5.c: ditto.
-
- * condvar6.c: ditto.
-
- * condvar7.c: ditto.
-
- * condvar8.c: ditto.
-
- * condvar9.c: ditto.
-
- * exit1.c: Function needed return statement.
-
- * cleanup1.c: Remove unnecessary printf arg.
-
- * cleanup2.c: Fix cast.
-
- * rwlock6.c: Fix casts.
-
- * exception1.c (PtW32CatchAll): Had the wrong name;
- fix casts.
-
- * cancel3.c: Remove unused waitLock variable.
-
- * GNUmakefile: Change library/dll naming; add new tests;
- general minor changes.
-
- * Makefile: Change library/dll naming; add targets for
- testing each of the two VC++ EH scheme versions;
- default target now issues help message; compile warnings
- now interpreted as errors to stop the make; add new
- tests; restructure to remove prerequisites needed
- otherwise.
-
- * README: Updated.
-
-
-2000-08-10 Ross Johnson <rpj@special.ise.canberra.edu.au>
-
- * eyal1.c (main): Change implicit cast to explicit
- cast when passing "print_server" function pointer;
- G++ no longer allows implicit func parameter casts.
-
- * cleanup1.c: Remove unused "waitLock".
- (main): Fix implicit parameter cast.
-
- * cancel2.c (main): Fix implicit parameter cast.
-
- * cancel4.c (main): Fix implicit parameter cast.
-
- * cancel3.c (main): Fix implicit parameter cast.
-
- * GNUmakefile: Renamed from Makefile; Add missing
- cancel1 and cancel2 test targets.
-
- * Makefile: Converted for use with MS nmake.
-
-2000-08-06 Ross Johnson <rpj@special.ise.canberra.edu.au>
-
- * ccl.bat: Add /nologo to remove extraneous output.
-
- * exception1.c (exceptionedThread): Init 'dummy';
- put expression into if condition to prevent optimising away;
- remove unused variable.
-
- * cancel4.c (mythread): Cast return value to avoid warnings.
-
- * cancel2.c (mythread): Missing #endif.
-
- * condvar9.c (mythread): Cast return value to avoid warnings.
-
- * condvar8.c (mythread): Cast return value to avoid warnings.
-
- * condvar7.c (mythread): Cast return value to avoid warnings.
-
- * cleanup3.c (mythread): Cast return value to avoid warnings.
-
- * cleanup2.c (mythread): Cast return value to avoid warnings.
-
- * cleanup1.c (mythread): Cast return value to avoid warnings.
-
- * condvar5.c (mythread): Cast return value to avoid warnings.
-
- * condvar3.c (mythread): Cast return value to avoid warnings.
-
- * condvar6.c (mythread): Cast return value to avoid warnings.
-
- * condvar4.c (mythread): Cast return value to avoid warnings.
-
-2000-08-05 Ross Johnson <rpj@special.ise.canberra.edu.au>
-
- * cancel2.c: Use PtW32CatchAll macro if defined.
-
- * exception1.c: Use PtW32CatchAll macro if defined.
-
-2000-08-02 Ross Johnson <rpj@special.ise.canberra.edu.au>
-
- * tsd1.c: Fix typecasts of &result [g++ is now very fussy].
-
- * test.h (assert): Return 0's explicitly to allay
- g++ errors.
-
- * join2.c: Add explicit typecasts.
-
- * join1.c: Add explicit typecasts.
-
- * join0.c: Add explicit typecasts.
-
- * eyal1.c: Add explicit typecasts.
-
- * count1.c (main): Add type cast to remove g++ parse warning
- [gcc-2.95.2 seems to have tightened up on this].
-
- * Makefile (GLANG): Use c++ explicitly.
- Remove MSVC sections (was commented out).
- Add target to generate cpp output.
-
-2000-07-25 Ross Johnson <rpj@special.ise.canberra.edu.au>
-
- * runtest.bat: modified to work under W98.
-
- * runall.bat: Add new tests; modified to work under W98.
- It was ok under NT.
-
- * Makefile: Add new tests.
-
- * exception1.c: New; Test passing exceptions back to the
- application and retaining library internal exceptions.
-
- * join0.c: New; Test a single join.
-
-2000-01-06 Ross Johnson <rpj@special.ise.canberra.edu.au>
-
- * cleanup1.c: New; Test cleanup handler executes (when thread is
- canceled).
-
- * cleanup2.c: New; Test cleanup handler executes (when thread is
- not canceled).
-
- * cleanup3.c: New; Test cleanup handler does not execute
- (when thread is not canceled).
-
-2000-01-04 Ross Johnson <rpj@special.ise.canberra.edu.au>
-
- * cancel4.c: New; Test cancelation does not occur in deferred
- cancelation threads with no cancelation points.
-
- * cancel3.c: New; Test asynchronous cancelation.
-
- * context1.c: New; Test context switching method for async
- cancelation.
-
-1999-11-23 Ross Johnson <rpj@special.ise.canberra.edu.au>
-
- * test.h: Add header includes; include local header versions rather
- than system versions; rearrange the assert macro defines.
-
-1999-11-07 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * loadfree.c: New. Test loading and freeing the library (DLL).
-
-1999-10-30 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * cancel1.c: New. Test pthread_setcancelstate and
- pthread_setcanceltype functions.
- * eyal1.c (waste_time): Change calculation to avoid FP exception
- on Aplhas
- - Rich Peters <rpeters@micro-magic.com>
-
-Oct 14 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * condvar7.c: New. Test broadcast after waiting thread is canceled.
- * condvar8.c: New. Test multiple broadcasts.
- * condvar9.c: New. Test multiple broadcasts with thread
- cancelation.
-
-Sep 16 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * rwlock6.c: New test.
-
-Sep 15 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * rwlock1.c: New test.
- * rwlock2.c: New test.
- * rwlock3.c: New test.
- * rwlock4.c: New test.
- * rwlock5.c: New test.
-
-Aug 22 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * runall.bat (join2): Add test.
-
-Aug 19 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * join2.c: New test.
-
-Wed Aug 12 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * Makefile (LIBS): Add -L.
-
-Mon May 31 10:25:01 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * Makefile (GLANG): Add GCC language option.
-
-Sat May 29 23:29:04 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * runall.bat (condvar5): Add new test.
-
- * runall.bat (condvar6): Add new test.
-
- * Makefile (condvar5) : Add new test.
-
- * Makefile (condvar6) : Add new test.
-
- * condvar5.c: New test for pthread_cond_broadcast().
-
- * condvar6.c: New test for pthread_cond_broadcast().
-
-Sun Apr 4 12:04:28 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * tsd1.c (mythread): Change Sleep(0) to sched_yield().
- (sched.h): Include.
-
- * condvar3.c (mythread): Remove redundant Sleep().
-
- * runtest.bat: Re-organised to make more informative.
-
-Fri Mar 19 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * *.bat: redirect unwanted output to nul:
-
- * runall.bat: new.
-
- * cancel1.c: new. Not part of suite yet.
-
-Mon Mar 15 00:17:55 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * mutex1.c: only test mutex init and destroy; add assertions.
-
- * count1.c: raise number of spawned threads to 60 (appears to
- be the limit under Win98).
-
-Sun Mar 14 21:31:02 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * test.h (assert): add assertion trace option.
- Use:
- "#define ASSERT_TRACE 1" to turn it on,
- "#define ASSERT_TRACE 0" to turn it off (default).
-
- * condvar3.c (main): add more assertions.
-
- * condvar4.c (main): add more assertions.
-
- * condvar1.c (main): add more assertions.
-
-Fri Mar 12 08:34:15 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * condvar4.c (cvthing): switch the order of the INITIALIZERs.
-
- * eyal1.c (main): Fix trylock loop; was not waiting for thread to lock
- the "started" mutex.
-
-Wed Mar 10 10:41:52 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * tryentercs.c: Apply typo patch from bje.
-
- * tryentercs2.c: Ditto.
-
-Sun Mar 7 10:41:52 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * Makefile (condvar3, condvar4): Add tests.
-
- * condvar4.c (General): Reduce to simple test case; prerequisite
- is condvar3.c; add description.
-
- * condvar3.c (General): Reduce to simple test case; prerequisite
- is condvar2.c; add description.
-
- * condvar2.c (General): Reduce to simple test case; prerequisite
- is condvar1.c; add description.
-
- * condvar1.c (General): Reduce to simple test case; add
- description.
-
- * Template.c (Comments): Add generic test detail.
-
-1999-02-23 Ross Johnson <rpj@ise.canberra.edu.au>
-
- * Template.c: Revamp.
-
- * condvar1.c: Add.
-
- * condvar2.c: Add.
-
- * Makefile: Add condvar1 condvar2 tests.
-
- * exit1.c, exit2.c, exit3.c: Cosmetic changes.
-
-1999-02-23 Ross Johnson <rpj@ise.canberra.edu.au>
-
- * Makefile: Some refinement.
-
- * *.c: More exhaustive checking through assertions; clean up;
- add some more tests.
-
- * Makefile: Now actually runs the tests.
-
- * tests.h: Define our own assert macro. The Mingw32
- version pops up a dialog but we want to run non-interactively.
-
- * equal1.c: use assert a little more directly so that it
- prints the actual call statement.
-
- * exit1.c: Modify to return 0 on success, 1 on failure.
-
-1999-02-22 Ross Johnson <rpj@ise.canberra.edu.au>
-
- * self2.c: Bring up to date.
-
- * self3.c: Ditto.
-
-1999-02-21 Ben Elliston <bje@cygnus.com>
-
- * README: Update.
-
- * Makefile: New file. Run all tests automatically. Primitive tests
- are run first; more complex tests are run last.
-
- * count1.c: New test. Validate the thread count.
-
- * exit2.c: Perform a simpler test.
-
- * exit3.c: New test. Replaces exit2.c, since exit2.c needs to
- perform simpler checking first.
-
- * create1.c: Update to use the new testsuite exiting convention.
-
- * equal1.c: Likewise.
-
- * mutex1.c: Likewise.
-
- * mutex2.c: Likewise.
-
- * once1.c: Likewise.
-
- * self2.c: Likewise.
-
- * self3.c: Likewise.
-
- * tsd1.c: Likewise.
-
-1999-02-20 Ross Johnson <rpj@ise.canberra.edu.au>
-
- * mutex2.c: Test static mutex initialisation.
-
- * test.h: New. Declares a table mapping error numbers to
- error names.
-
-1999-01-17 Ross Johnson <rpj@ise.canberra.edu.au>
-
- * runtest: New script to build and run a test in the tests directory.
-
-Wed Dec 30 11:22:44 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * tsd1.c: Re-written. See comments at start of file.
- * Template.c: New. Contains skeleton code and comment template
- intended to fully document the test.
-
-Fri Oct 16 17:59:49 1998 Ross Johnson <rpj@swan.canberra.edu.au>
-
- * tsd1.c (destroy_key): Add function. Change diagnostics.
-
-Thu Oct 15 17:42:37 1998 Ross Johnson <rpj@swan.canberra.edu.au>
-
- * tsd1.c (mythread): Fix some casts and add some message
- output. Fix inverted conditional.
-
-Mon Oct 12 02:12:29 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
-
- * tsd1.c: New. Test TSD using 1 key and 2 threads.
-
-1998-09-13 Ben Elliston <bje@cygnus.com>
-
- * eyal1.c: New file; contributed by Eyal Lebedinsky
- <eyal@eyal.emu.id.au>.
-
-1998-09-12 Ben Elliston <bje@cygnus.com>
-
- * exit2.c (func): Return a value.
- (main): Call the right thread entry function.
-
-1998-07-22 Ben Elliston <bje@cygnus.com>
-
- * exit2.c (main): Fix size of pthread_t array.
-
-1998-07-10 Ben Elliston <bje@cygnus.com>
-
- * exit2.c: New file; test pthread_exit() harder.
-
- * exit1.c: New file; test pthread_exit().
+2001-06-25 Ross Johnson <rpj@special.ise.canberra.edu.au> + + priority1.c: New test. + priority2.c: New test. + inherit1.c: New test. + benchtest1.c: New; timing mutexes. + benchtest2.c: New; timing mutexes. + mutex4.c: Modified to test all mutex types. + +2001-06-8 Ross Johnson <rpj@special.ise.canberra.edu.au> + + * mutex5.c: Insert inert change to quell compiler warnings. + * condvar3_2.c: Remove unused variable. + +2001-06-3 Ross Johnson <rpj@special.ise.canberra.edu.au> + + * condvar2_1.c: New test. + * condvar3_1.c: New test. + * condvar3_2.c: New test. + +2001-05-30 Ross Johnson <rpj@special.ise.canberra.edu.au> + + * mutex1n.c: New test. + * mutex1e.c: New test. + * mutex1r.c: New test. + * mutex4.c: Now locks and unlocks a mutex. + * mutex5.c: New test. + * mutex6.c: New test. + * mutex6n.c: New test. + * mutex6e.c: New test. + * mutex6r.c: New test. + * Makefile: Added new tests; reorganised. + * GNUmakefile: Likewise. + * rwlock6.c: Fix to properly prove read-while-write locking + and single writer locking. + +2001-05-29 Ross Johnson <rpj@special.ise.canberra.edu.au> + + * Makefile: Reorganisation. + * GNUmakefile: Likewise. + - Thomas Pfaff <tpfaff@gmx.net> + + * exception1.c: Add stdio.h include to define fprintf and stderr + in non-exception C version of main(). + * exception2.c: Likewise. + * exception3.c: Likewise. + + * Makefile (rwlock7): Add new test. + * GNUmakefile (rwlock7): Add new test. + * rwlock7.c: New test. + * rwlock6.c: Changed to test that writer has priority. + + * eyal1.c (main): Unlock each mutex_start lock before destroying + it. + +2000-12-29 Ross Johnson <rpj@special.ise.canberra.edu.au> + + * GNUmakefile: Add mutex4 test; ensure libpthreadw32.a is + removed for "clean" target. + * Makefile: Add mutex4 test. + + * exception3.c: Remove SEH code; automatically pass the test + under SEH (which is an N/A environment). + + * mutex4.c: New test. + + * eyal1.c (do_work_unit): Add a dummy "if" to force the + optimiser to retain code; reduce thread work loads. + + * condvar8.c (main): Add an additional "assert" for debugging; + increase pthread_cond_signal timeout. + +2000-12-28 Ross Johnson <rpj@special.ise.canberra.edu.au> + + * eyal1.c: Increase thread work loads. + * exception2.c: New test. + * exception3.c: New test. + * Makefile: Add new tests exception2.c and exception3.c. + * GNUmakefile: Likewise. + +2000-12-11 Ross Johnson <rpj@special.ise.canberra.edu.au> + + * cleanup3.c: Remove unused variable. + * cleanup2.c: Likewise. + * exception1.c: Throw an exception rather than use + a deliberate zero divide so that catch(...) will + handle it under Mingw32. Mingw32 now builds the + library correctly to pass all tests - see Thomas + Pfaff's detailed instructions re needed changes + to Mingw32 in the Pthreads-Win32 FAQ. + +2000-09-08 Ross Johnson <rpj@special.ise.canberra.edu.au> + + * cancel5.c: New; tests calling pthread_cancel() + from the main thread without first creating a + POSIX thread struct for the non-POSIX main thread + - this forces pthread_cancel() to create one via + pthread_self(). + * Makefile (cancel5): Add new test. + * GNUmakefile (cancel5): Likewise. + +2000-08-17 Ross Johnson <rpj@special.ise.canberra.edu.au> + + * create2.c: New; Test that pthread_t contains + the W32 HANDLE before it calls the thread routine + proper. + +2000-08-13 Ross Johnson <rpj@special.ise.canberra.edu.au> + + * condvar3.c: Minor change to eliminate compiler + warning. + + * condvar4.c: ditto. + + * condvar5.c: ditto. + + * condvar6.c: ditto. + + * condvar7.c: ditto. + + * condvar8.c: ditto. + + * condvar9.c: ditto. + + * exit1.c: Function needed return statement. + + * cleanup1.c: Remove unnecessary printf arg. + + * cleanup2.c: Fix cast. + + * rwlock6.c: Fix casts. + + * exception1.c (PtW32CatchAll): Had the wrong name; + fix casts. + + * cancel3.c: Remove unused waitLock variable. + + * GNUmakefile: Change library/dll naming; add new tests; + general minor changes. + + * Makefile: Change library/dll naming; add targets for + testing each of the two VC++ EH scheme versions; + default target now issues help message; compile warnings + now interpreted as errors to stop the make; add new + tests; restructure to remove prerequisites needed + otherwise. + + * README: Updated. + + +2000-08-10 Ross Johnson <rpj@special.ise.canberra.edu.au> + + * eyal1.c (main): Change implicit cast to explicit + cast when passing "print_server" function pointer; + G++ no longer allows implicit func parameter casts. + + * cleanup1.c: Remove unused "waitLock". + (main): Fix implicit parameter cast. + + * cancel2.c (main): Fix implicit parameter cast. + + * cancel4.c (main): Fix implicit parameter cast. + + * cancel3.c (main): Fix implicit parameter cast. + + * GNUmakefile: Renamed from Makefile; Add missing + cancel1 and cancel2 test targets. + + * Makefile: Converted for use with MS nmake. + +2000-08-06 Ross Johnson <rpj@special.ise.canberra.edu.au> + + * ccl.bat: Add /nologo to remove extraneous output. + + * exception1.c (exceptionedThread): Init 'dummy'; + put expression into if condition to prevent optimising away; + remove unused variable. + + * cancel4.c (mythread): Cast return value to avoid warnings. + + * cancel2.c (mythread): Missing #endif. + + * condvar9.c (mythread): Cast return value to avoid warnings. + + * condvar8.c (mythread): Cast return value to avoid warnings. + + * condvar7.c (mythread): Cast return value to avoid warnings. + + * cleanup3.c (mythread): Cast return value to avoid warnings. + + * cleanup2.c (mythread): Cast return value to avoid warnings. + + * cleanup1.c (mythread): Cast return value to avoid warnings. + + * condvar5.c (mythread): Cast return value to avoid warnings. + + * condvar3.c (mythread): Cast return value to avoid warnings. + + * condvar6.c (mythread): Cast return value to avoid warnings. + + * condvar4.c (mythread): Cast return value to avoid warnings. + +2000-08-05 Ross Johnson <rpj@special.ise.canberra.edu.au> + + * cancel2.c: Use PtW32CatchAll macro if defined. + + * exception1.c: Use PtW32CatchAll macro if defined. + +2000-08-02 Ross Johnson <rpj@special.ise.canberra.edu.au> + + * tsd1.c: Fix typecasts of &result [g++ is now very fussy]. + + * test.h (assert): Return 0's explicitly to allay + g++ errors. + + * join2.c: Add explicit typecasts. + + * join1.c: Add explicit typecasts. + + * join0.c: Add explicit typecasts. + + * eyal1.c: Add explicit typecasts. + + * count1.c (main): Add type cast to remove g++ parse warning + [gcc-2.95.2 seems to have tightened up on this]. + + * Makefile (GLANG): Use c++ explicitly. + Remove MSVC sections (was commented out). + Add target to generate cpp output. + +2000-07-25 Ross Johnson <rpj@special.ise.canberra.edu.au> + + * runtest.bat: modified to work under W98. + + * runall.bat: Add new tests; modified to work under W98. + It was ok under NT. + + * Makefile: Add new tests. + + * exception1.c: New; Test passing exceptions back to the + application and retaining library internal exceptions. + + * join0.c: New; Test a single join. + +2000-01-06 Ross Johnson <rpj@special.ise.canberra.edu.au> + + * cleanup1.c: New; Test cleanup handler executes (when thread is + canceled). + + * cleanup2.c: New; Test cleanup handler executes (when thread is + not canceled). + + * cleanup3.c: New; Test cleanup handler does not execute + (when thread is not canceled). + +2000-01-04 Ross Johnson <rpj@special.ise.canberra.edu.au> + + * cancel4.c: New; Test cancelation does not occur in deferred + cancelation threads with no cancelation points. + + * cancel3.c: New; Test asynchronous cancelation. + + * context1.c: New; Test context switching method for async + cancelation. + +1999-11-23 Ross Johnson <rpj@special.ise.canberra.edu.au> + + * test.h: Add header includes; include local header versions rather + than system versions; rearrange the assert macro defines. + +1999-11-07 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * loadfree.c: New. Test loading and freeing the library (DLL). + +1999-10-30 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * cancel1.c: New. Test pthread_setcancelstate and + pthread_setcanceltype functions. + * eyal1.c (waste_time): Change calculation to avoid FP exception + on Aplhas + - Rich Peters <rpeters@micro-magic.com> + +Oct 14 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * condvar7.c: New. Test broadcast after waiting thread is canceled. + * condvar8.c: New. Test multiple broadcasts. + * condvar9.c: New. Test multiple broadcasts with thread + cancelation. + +Sep 16 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * rwlock6.c: New test. + +Sep 15 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * rwlock1.c: New test. + * rwlock2.c: New test. + * rwlock3.c: New test. + * rwlock4.c: New test. + * rwlock5.c: New test. + +Aug 22 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * runall.bat (join2): Add test. + +Aug 19 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * join2.c: New test. + +Wed Aug 12 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * Makefile (LIBS): Add -L. + +Mon May 31 10:25:01 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * Makefile (GLANG): Add GCC language option. + +Sat May 29 23:29:04 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * runall.bat (condvar5): Add new test. + + * runall.bat (condvar6): Add new test. + + * Makefile (condvar5) : Add new test. + + * Makefile (condvar6) : Add new test. + + * condvar5.c: New test for pthread_cond_broadcast(). + + * condvar6.c: New test for pthread_cond_broadcast(). + +Sun Apr 4 12:04:28 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * tsd1.c (mythread): Change Sleep(0) to sched_yield(). + (sched.h): Include. + + * condvar3.c (mythread): Remove redundant Sleep(). + + * runtest.bat: Re-organised to make more informative. + +Fri Mar 19 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * *.bat: redirect unwanted output to nul: + + * runall.bat: new. + + * cancel1.c: new. Not part of suite yet. + +Mon Mar 15 00:17:55 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * mutex1.c: only test mutex init and destroy; add assertions. + + * count1.c: raise number of spawned threads to 60 (appears to + be the limit under Win98). + +Sun Mar 14 21:31:02 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * test.h (assert): add assertion trace option. + Use: + "#define ASSERT_TRACE 1" to turn it on, + "#define ASSERT_TRACE 0" to turn it off (default). + + * condvar3.c (main): add more assertions. + + * condvar4.c (main): add more assertions. + + * condvar1.c (main): add more assertions. + +Fri Mar 12 08:34:15 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * condvar4.c (cvthing): switch the order of the INITIALIZERs. + + * eyal1.c (main): Fix trylock loop; was not waiting for thread to lock + the "started" mutex. + +Wed Mar 10 10:41:52 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * tryentercs.c: Apply typo patch from bje. + + * tryentercs2.c: Ditto. + +Sun Mar 7 10:41:52 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * Makefile (condvar3, condvar4): Add tests. + + * condvar4.c (General): Reduce to simple test case; prerequisite + is condvar3.c; add description. + + * condvar3.c (General): Reduce to simple test case; prerequisite + is condvar2.c; add description. + + * condvar2.c (General): Reduce to simple test case; prerequisite + is condvar1.c; add description. + + * condvar1.c (General): Reduce to simple test case; add + description. + + * Template.c (Comments): Add generic test detail. + +1999-02-23 Ross Johnson <rpj@ise.canberra.edu.au> + + * Template.c: Revamp. + + * condvar1.c: Add. + + * condvar2.c: Add. + + * Makefile: Add condvar1 condvar2 tests. + + * exit1.c, exit2.c, exit3.c: Cosmetic changes. + +1999-02-23 Ross Johnson <rpj@ise.canberra.edu.au> + + * Makefile: Some refinement. + + * *.c: More exhaustive checking through assertions; clean up; + add some more tests. + + * Makefile: Now actually runs the tests. + + * tests.h: Define our own assert macro. The Mingw32 + version pops up a dialog but we want to run non-interactively. + + * equal1.c: use assert a little more directly so that it + prints the actual call statement. + + * exit1.c: Modify to return 0 on success, 1 on failure. + +1999-02-22 Ross Johnson <rpj@ise.canberra.edu.au> + + * self2.c: Bring up to date. + + * self3.c: Ditto. + +1999-02-21 Ben Elliston <bje@cygnus.com> + + * README: Update. + + * Makefile: New file. Run all tests automatically. Primitive tests + are run first; more complex tests are run last. + + * count1.c: New test. Validate the thread count. + + * exit2.c: Perform a simpler test. + + * exit3.c: New test. Replaces exit2.c, since exit2.c needs to + perform simpler checking first. + + * create1.c: Update to use the new testsuite exiting convention. + + * equal1.c: Likewise. + + * mutex1.c: Likewise. + + * mutex2.c: Likewise. + + * once1.c: Likewise. + + * self2.c: Likewise. + + * self3.c: Likewise. + + * tsd1.c: Likewise. + +1999-02-20 Ross Johnson <rpj@ise.canberra.edu.au> + + * mutex2.c: Test static mutex initialisation. + + * test.h: New. Declares a table mapping error numbers to + error names. + +1999-01-17 Ross Johnson <rpj@ise.canberra.edu.au> + + * runtest: New script to build and run a test in the tests directory. + +Wed Dec 30 11:22:44 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * tsd1.c: Re-written. See comments at start of file. + * Template.c: New. Contains skeleton code and comment template + intended to fully document the test. + +Fri Oct 16 17:59:49 1998 Ross Johnson <rpj@swan.canberra.edu.au> + + * tsd1.c (destroy_key): Add function. Change diagnostics. + +Thu Oct 15 17:42:37 1998 Ross Johnson <rpj@swan.canberra.edu.au> + + * tsd1.c (mythread): Fix some casts and add some message + output. Fix inverted conditional. + +Mon Oct 12 02:12:29 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> + + * tsd1.c: New. Test TSD using 1 key and 2 threads. + +1998-09-13 Ben Elliston <bje@cygnus.com> + + * eyal1.c: New file; contributed by Eyal Lebedinsky + <eyal@eyal.emu.id.au>. + +1998-09-12 Ben Elliston <bje@cygnus.com> + + * exit2.c (func): Return a value. + (main): Call the right thread entry function. + +1998-07-22 Ben Elliston <bje@cygnus.com> + + * exit2.c (main): Fix size of pthread_t array. + +1998-07-10 Ben Elliston <bje@cygnus.com> + + * exit2.c: New file; test pthread_exit() harder. + + * exit1.c: New file; test pthread_exit(). diff --git a/tests/GNUmakefile b/tests/GNUmakefile index b14db76..2eabdae 100644 --- a/tests/GNUmakefile +++ b/tests/GNUmakefile @@ -46,7 +46,10 @@ TESTS = loadfree \ rwlock1 rwlock2 rwlock3 rwlock4 rwlock5 rwlock6 rwlock7 \ context1 cancel3 cancel4 cancel5 \ cleanup0 cleanup1 cleanup2 cleanup3 \ - exception1 exception2 exception3 + priority1 priority2 inherit1 \ + exception1 exception2 \ + benchtest1 benchtest2 \ + exception3 PASSES = $(TESTS:%=%.pass) @@ -71,6 +74,8 @@ all-GC: $(PASSES) all-GCE: $(PASSES) @ $(ECHO) ALL TESTS PASSED! Congratulations! +benchtest1.pass: mutex3.pass +benchtest2.pass: benchtest1.pass cancel1.pass: create1.pass cancel2.pass: cancel1.pass cancel2_1.pass: cancel2.pass @@ -105,6 +110,7 @@ exit1.pass: exit2.pass: create1.pass exit3.pass: create1.pass eyal1.pass: tsd1.pass +inherit1.pass: join1.pass join0.pass: create1.pass join1.pass: create1.pass join2.pass: create1.pass @@ -118,6 +124,8 @@ mutex3.pass: create1.pass mutex4.pass: mutex3.pass mutex5.pass: once1.pass: create1.pass +priority1.pass: join1.pass +priority2.pass: priority1.pass rwlock1.pass: condvar6.pass rwlock2.pass: rwlock1.pass rwlock3.pass: rwlock2.pass diff --git a/tests/Makefile b/tests/Makefile index afcc156..d7b36b0 100644 --- a/tests/Makefile +++ b/tests/Makefile @@ -55,7 +55,9 @@ PASSES= loadfree.pass \ context1.pass \
cancel3.pass cancel4.pass cancel5.pass \
cleanup0.pass cleanup1.pass cleanup2.pass cleanup3.pass \
- exception1.pass exception2.pass exception3.pass
+ priority1.pass priority2.pass inherit1.pass \
+ exception1.pass exception2.pass \
+ benchtest1.pass benchtest2.pass exception3.pass \
all:
@ $(ECHO) Run one of the following command lines:
@@ -114,6 +116,8 @@ clean: - $(RM) *.exe
- $(RM) *.pass
+benchtest1.pass: mutex3.pass
+benchtest2.pass: benchtest1.pass
cancel1.pass: create1.pass
cancel2.pass: cancel1.pass
cancel3.pass: context1.pass
@@ -147,6 +151,7 @@ exit1.pass: exit2.pass: create1.pass
exit3.pass: create1.pass
eyal1.pass: tsd1.pass
+inherit1.pass: join1.pass
join0.pass: create1.pass
join1.pass: create1.pass
join2.pass: create1.pass
@@ -160,6 +165,8 @@ mutex3.pass: create1.pass mutex4.pass: mutex3.pass
mutex5.pass:
once1.pass: create1.pass
+priority1.pass: join1.pass
+priority2.pass: priority1.pass
rwlock1.pass: condvar6.pass
rwlock2.pass: rwlock1.pass
rwlock3.pass: rwlock2.pass
diff --git a/tests/benchtest1.c b/tests/benchtest1.c new file mode 100644 index 0000000..883c24f --- /dev/null +++ b/tests/benchtest1.c @@ -0,0 +1,117 @@ +/* + * benchtest1.c + * + * Measure time taken to complete an elementary operation. + * + * - Mutex + * Single thread iteration over lock/unlock for each mutex type. + */ + +#include "test.h" +#include <sys/timeb.h> + +#ifdef __GNUC__ +#include <stdlib.h> +#endif + +#define ITERATIONS 10000000L + +pthread_mutex_t mx; +pthread_mutexattr_t ma; +struct _timeb currSysTimeStart; +struct _timeb currSysTimeStop; +long durationMilliSecs; +long overHeadMilliSecs = 0; + +#define GetDurationMilliSecs(_TStart, _TStop) ((_TStop.time*1000+_TStop.millitm) \ + - (_TStart.time*1000+_TStart.millitm)) + +/* + * Dummy use of j, otherwise the loop may be removed by the optimiser + * when doing the overhead timing with an empty loop. + */ +#define TESTSTART \ + { int i, j = 0, k = 0; _ftime(&currSysTimeStart); for (i = 0; i < ITERATIONS; i++) { j++; + +#define TESTSTOP \ + }; _ftime(&currSysTimeStop); if (j + k == i) j++; } + + +void +runTest (char * testNameString, int mType) +{ +#ifdef PTHREAD_MUTEX_DEFAULT + pthread_mutexattr_settype(&ma, mType); +#endif + pthread_mutex_init(&mx, &ma); + + TESTSTART + (void) pthread_mutex_lock(&mx); + (void) pthread_mutex_unlock(&mx); + TESTSTOP + + pthread_mutex_destroy(&mx); + + durationMilliSecs = GetDurationMilliSecs(currSysTimeStart, currSysTimeStop) + - overHeadMilliSecs; + + printf( "%-25s %15ld %15ld %15.3f\n", + testNameString, + ITERATIONS, + durationMilliSecs, + (float) durationMilliSecs * 1E3 / ITERATIONS); +} + + +int +main (int argc, char *argv[]) +{ + pthread_mutexattr_init(&ma); + + printf( "Single thread, non-blocking mutex locks/unlocks.\n\n"); + printf( "%-25s %15s %15s %15s\n", + "Test", + "Iterations", + "Total(msec)", + "lock/unlock(usec)"); + + /* + * Time the loop overhead so we can subtract it from the actual test times. + */ + + TESTSTART + TESTSTOP + + durationMilliSecs = GetDurationMilliSecs(currSysTimeStart, currSysTimeStop) + - overHeadMilliSecs; + + printf( "%-25s %15ld %15ld\n", + "Overhead", + ITERATIONS, + durationMilliSecs); + + overHeadMilliSecs = durationMilliSecs; + + /* + * Now we can start the actual tests + */ +#ifdef PTHREAD_MUTEX_DEFAULT + runTest("PTHREAD_MUTEX_DEFAULT", PTHREAD_MUTEX_DEFAULT); + + runTest("PTHREAD_MUTEX_NORMAL", PTHREAD_MUTEX_NORMAL); + + runTest("PTHREAD_MUTEX_ERRORCHECK", PTHREAD_MUTEX_ERRORCHECK); + + runTest("PTHREAD_MUTEX_RECURSIVE", PTHREAD_MUTEX_RECURSIVE); +#else + runTest("Non-blocking lock", 0); +#endif + + /* + * End of tests. + */ + + pthread_mutexattr_destroy(&ma); + + return 0; +} diff --git a/tests/benchtest2.c b/tests/benchtest2.c new file mode 100644 index 0000000..f2932b9 --- /dev/null +++ b/tests/benchtest2.c @@ -0,0 +1,183 @@ +/* + * benchtest1.c + * + * Measure time taken to complete an elementary operation. + * + * - Mutex + * Two threads iterate over lock/unlock for each mutex type. + * The two threads are forced into lock-step using two mutexes, + * forcing the threads to block on each lock operation. The + * time measured is therefore the worst case senario. + */ + +#include "test.h" +#include <sys/timeb.h> + +#ifdef __GNUC__ +#include <stdlib.h> +#endif + +#define ITERATIONS 100000L + +pthread_mutex_t gate1, gate2; +pthread_mutexattr_t ma; +long durationMilliSecs; +long overHeadMilliSecs = 0; +struct _timeb currSysTimeStart; +struct _timeb currSysTimeStop; +pthread_t worker; +int running = 0; + +#define GetDurationMilliSecs(_TStart, _TStop) ((_TStop.time*1000+_TStop.millitm) \ + - (_TStart.time*1000+_TStart.millitm)) + +/* + * Dummy use of j, otherwise the loop may be removed by the optimiser + * when doing the overhead timing with an empty loop. + */ +#define TESTSTART \ + { int i, j = 0, k = 0; _ftime(&currSysTimeStart); for (i = 0; i < ITERATIONS; i++) { j++; + +#define TESTSTOP \ + }; _ftime(&currSysTimeStop); if (j + k == i) j++; } + + +void * +overheadThread(void * arg) +{ + do + { + sched_yield(); + } + while (running); + + return NULL; +} + + +void * +workerThread(void * arg) +{ + do + { + (void) pthread_mutex_lock(&gate1); + (void) pthread_mutex_lock(&gate2); + (void) pthread_mutex_unlock(&gate1); + sched_yield(); + (void) pthread_mutex_unlock(&gate2); + } + while (running); + + return NULL; +} + +void +runTest (char * testNameString, int mType) +{ +#ifdef PTHREAD_MUTEX_DEFAULT + pthread_mutexattr_settype(&ma, mType); +#endif + pthread_mutex_init(&gate1, &ma); + pthread_mutex_init(&gate2, &ma); + + (void) pthread_mutex_lock(&gate1); + (void) pthread_mutex_lock(&gate2); + + running = 1; + + (void) pthread_create(&worker, NULL, workerThread, NULL); + + TESTSTART + (void) pthread_mutex_unlock(&gate1); + sched_yield(); + (void) pthread_mutex_unlock(&gate2); + (void) pthread_mutex_lock(&gate1); + (void) pthread_mutex_lock(&gate2); + TESTSTOP + + running = 0; + + (void) pthread_mutex_unlock(&gate2); + (void) pthread_mutex_unlock(&gate1); + + (void) pthread_join(worker, NULL); + + pthread_mutex_destroy(&gate2); + pthread_mutex_destroy(&gate1); + + durationMilliSecs = GetDurationMilliSecs(currSysTimeStart, currSysTimeStop) + - overHeadMilliSecs; + + printf( "%-25s %15ld %15ld %15.3f\n", + testNameString, + ITERATIONS, + durationMilliSecs, + (float) durationMilliSecs * 1E3 / ITERATIONS / 4 /* Four locks/unlocks per iteration */); +} + + +int +main (int argc, char *argv[]) +{ + pthread_mutexattr_init(&ma); + + printf( "Two threads, blocking mutex locks/unlocks.\n\n"); + + printf( "%-25s %15s %15s %15s\n", + "Test", + "Iterations", + "Total(msec)", + "lock/unlock(usec)"); + + /* + * Time the loop overhead so we can subtract it from the actual test times. + */ + + running = 1; + + (void) pthread_create(&worker, NULL, overheadThread, NULL); + + TESTSTART + sched_yield(); + TESTSTOP + + running = 0; + + (void) pthread_join(worker, NULL); + + pthread_mutex_destroy(&gate2); + pthread_mutex_destroy(&gate1); + + durationMilliSecs = GetDurationMilliSecs(currSysTimeStart, currSysTimeStop) + - overHeadMilliSecs; + + printf( "%-25s %15ld %15ld\n", + "Overhead", + ITERATIONS, + durationMilliSecs); + + overHeadMilliSecs = durationMilliSecs; + + /* + * Now we can start the actual tests + */ +#ifdef PTHREAD_MUTEX_DEFAULT + runTest("PTHREAD_MUTEX_DEFAULT", PTHREAD_MUTEX_DEFAULT); + + runTest("PTHREAD_MUTEX_NORMAL", PTHREAD_MUTEX_NORMAL); + + runTest("PTHREAD_MUTEX_ERRORCHECK", PTHREAD_MUTEX_ERRORCHECK); + + runTest("PTHREAD_MUTEX_RECURSIVE", PTHREAD_MUTEX_RECURSIVE); +#else + runTest("Blocking locks", 0); +#endif + + /* + * End of tests. + */ + + pthread_mutexattr_destroy(&ma); + + return 0; +} diff --git a/tests/cancel5.c b/tests/cancel5.c index 7d7262a..b12cc1c 100644 --- a/tests/cancel5.c +++ b/tests/cancel5.c @@ -1,177 +1,177 @@ -/*
- * File: cancel5.c
- *
- * Test Synopsis: Test calling pthread_cancel from the main thread
- * without calling pthread_self() in main.
- *
- * Test Method (Validation or Falsification):
- * -
- *
- * Requirements Tested:
- * -
- *
- * Features Tested:
- * -
- *
- * Cases Tested:
- * -
- *
- * Description:
- * -
- *
- * Environment:
- * -
- *
- * Input:
- * - None.
- *
- * Output:
- * - File name, Line number, and failed expression on failure.
- * - No output on success.
- *
- * Assumptions:
- * - have working pthread_create, pthread_self, pthread_mutex_lock/unlock
- * pthread_testcancel, pthread_cancel, pthread_join
- *
- * Pass Criteria:
- * - Process returns zero exit status.
- *
- * Fail Criteria:
- * - Process returns non-zero exit status.
- */
-
-#if defined(_MSC_VER) || defined(__cplusplus)
-
-#include "test.h"
-
-/*
- * Create NUMTHREADS threads in addition to the Main thread.
- */
-enum {
- NUMTHREADS = 4
-};
-
-typedef struct bag_t_ bag_t;
-struct bag_t_ {
- int threadnum;
- int started;
- /* Add more per-thread state variables here */
- int count;
-};
-
-static bag_t threadbag[NUMTHREADS + 1];
-
-void *
-mythread(void * arg)
-{
- int result = ((int)PTHREAD_CANCELED + 1);
- bag_t * bag = (bag_t *) arg;
-
- assert(bag == &threadbag[bag->threadnum]);
- assert(bag->started == 0);
- bag->started = 1;
-
- /* Set to known state and type */
-
- assert(pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL) == 0);
-
- assert(pthread_setcanceltype(PTHREAD_CANCEL_ASYNCHRONOUS, NULL) == 0);
-
- /*
- * We wait up to 10 seconds, waking every 0.1 seconds,
- * for a cancelation to be applied to us.
- */
- for (bag->count = 0; bag->count < 100; bag->count++)
- Sleep(100);
-
- return (void *) result;
-}
-
-int
-main()
-{
- int failed = 0;
- int i;
- pthread_t t[NUMTHREADS + 1];
-
- for (i = 1; i <= NUMTHREADS; i++)
- {
- threadbag[i].started = 0;
- threadbag[i].threadnum = i;
- assert(pthread_create(&t[i], NULL, mythread, (void *) &threadbag[i]) == 0);
- }
-
- /*
- * Code to control or munipulate child threads should probably go here.
- */
- Sleep(500);
-
- for (i = 1; i <= NUMTHREADS; i++)
- {
- assert(pthread_cancel(t[i]) == 0);
- }
-
- /*
- * Give threads time to run.
- */
- Sleep(NUMTHREADS * 100);
-
- /*
- * Standard check that all threads started.
- */
- for (i = 1; i <= NUMTHREADS; i++)
- {
- if (!threadbag[i].started)
- {
- failed |= !threadbag[i].started;
- fprintf(stderr, "Thread %d: started %d\n", i, threadbag[i].started);
- }
- }
-
- assert(!failed);
-
- /*
- * Check any results here. Set "failed" and only print output on failure.
- */
- failed = 0;
- for (i = 1; i <= NUMTHREADS; i++)
- {
- int fail = 0;
- int result = 0;
-
- /*
- * The thread does not contain any cancelation points, so
- * a return value of PTHREAD_CANCELED confirms that async
- * cancelation succeeded.
- */
- assert(pthread_join(t[i], (void **) &result) == 0);
-
- fail = (result != (int) PTHREAD_CANCELED);
-
- if (fail)
- {
- fprintf(stderr, "Thread %d: started %d: count %d\n",
- i,
- threadbag[i].started,
- threadbag[i].count);
- }
- failed = (failed || fail);
- }
-
- assert(!failed);
-
- /*
- * Success.
- */
- return 0;
-}
-
-#else /* defined(_MSC_VER) || defined(__cplusplus) */
-
-int
-main()
-{
- return 0;
-}
-
-#endif /* defined(_MSC_VER) || defined(__cplusplus) */
+/* + * File: cancel5.c + * + * Test Synopsis: Test calling pthread_cancel from the main thread + * without calling pthread_self() in main. + * + * Test Method (Validation or Falsification): + * - + * + * Requirements Tested: + * - + * + * Features Tested: + * - + * + * Cases Tested: + * - + * + * Description: + * - + * + * Environment: + * - + * + * Input: + * - None. + * + * Output: + * - File name, Line number, and failed expression on failure. + * - No output on success. + * + * Assumptions: + * - have working pthread_create, pthread_self, pthread_mutex_lock/unlock + * pthread_testcancel, pthread_cancel, pthread_join + * + * Pass Criteria: + * - Process returns zero exit status. + * + * Fail Criteria: + * - Process returns non-zero exit status. + */ + +#if defined(_MSC_VER) || defined(__cplusplus) + +#include "test.h" + +/* + * Create NUMTHREADS threads in addition to the Main thread. + */ +enum { + NUMTHREADS = 4 +}; + +typedef struct bag_t_ bag_t; +struct bag_t_ { + int threadnum; + int started; + /* Add more per-thread state variables here */ + int count; +}; + +static bag_t threadbag[NUMTHREADS + 1]; + +void * +mythread(void * arg) +{ + int result = ((int)PTHREAD_CANCELED + 1); + bag_t * bag = (bag_t *) arg; + + assert(bag == &threadbag[bag->threadnum]); + assert(bag->started == 0); + bag->started = 1; + + /* Set to known state and type */ + + assert(pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL) == 0); + + assert(pthread_setcanceltype(PTHREAD_CANCEL_ASYNCHRONOUS, NULL) == 0); + + /* + * We wait up to 10 seconds, waking every 0.1 seconds, + * for a cancelation to be applied to us. + */ + for (bag->count = 0; bag->count < 100; bag->count++) + Sleep(100); + + return (void *) result; +} + +int +main() +{ + int failed = 0; + int i; + pthread_t t[NUMTHREADS + 1]; + + for (i = 1; i <= NUMTHREADS; i++) + { + threadbag[i].started = 0; + threadbag[i].threadnum = i; + assert(pthread_create(&t[i], NULL, mythread, (void *) &threadbag[i]) == 0); + } + + /* + * Code to control or munipulate child threads should probably go here. + */ + Sleep(500); + + for (i = 1; i <= NUMTHREADS; i++) + { + assert(pthread_cancel(t[i]) == 0); + } + + /* + * Give threads time to run. + */ + Sleep(NUMTHREADS * 100); + + /* + * Standard check that all threads started. + */ + for (i = 1; i <= NUMTHREADS; i++) + { + if (!threadbag[i].started) + { + failed |= !threadbag[i].started; + fprintf(stderr, "Thread %d: started %d\n", i, threadbag[i].started); + } + } + + assert(!failed); + + /* + * Check any results here. Set "failed" and only print output on failure. + */ + failed = 0; + for (i = 1; i <= NUMTHREADS; i++) + { + int fail = 0; + int result = 0; + + /* + * The thread does not contain any cancelation points, so + * a return value of PTHREAD_CANCELED confirms that async + * cancelation succeeded. + */ + assert(pthread_join(t[i], (void **) &result) == 0); + + fail = (result != (int) PTHREAD_CANCELED); + + if (fail) + { + fprintf(stderr, "Thread %d: started %d: count %d\n", + i, + threadbag[i].started, + threadbag[i].count); + } + failed = (failed || fail); + } + + assert(!failed); + + /* + * Success. + */ + return 0; +} + +#else /* defined(_MSC_VER) || defined(__cplusplus) */ + +int +main() +{ + return 0; +} + +#endif /* defined(_MSC_VER) || defined(__cplusplus) */ diff --git a/tests/exception1.c b/tests/exception1.c index 60038cd..e6ca461 100644 --- a/tests/exception1.c +++ b/tests/exception1.c @@ -1,231 +1,231 @@ -/*
- * File: exception1.c
- *
- * Test Synopsis: Test passing of exceptions back to the application.
- *
- * Test Method (Validation or Falsification):
- * -
- *
- * Requirements Tested:
- * -
- *
- * Features Tested:
- * -
- *
- * Cases Tested:
- * -
- *
- * Description:
- * -
- *
- * Environment:
- * -
- *
- * Input:
- * - None.
- *
- * Output:
- * - File name, Line number, and failed expression on failure.
- * - No output on success.
- *
- * Assumptions:
- * - have working pthread_create, pthread_self, pthread_mutex_lock/unlock
- * pthread_testcancel, pthread_cancel, pthread_join
- *
- * Pass Criteria:
- * - Process returns zero exit status.
- *
- * Fail Criteria:
- * - Process returns non-zero exit status.
- */
-
-#if defined(_MSC_VER) || defined(__cplusplus)
-
-#include "test.h"
-
-/*
- * Create NUMTHREADS threads in addition to the Main thread.
- */
-enum {
- NUMTHREADS = 4
-};
-
-void *
-exceptionedThread(void * arg)
-{
- int dummy = 0;
- int result = ((int)PTHREAD_CANCELED + 1);
- /* Set to async cancelable */
-
- assert(pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL) == 0);
-
- assert(pthread_setcanceltype(PTHREAD_CANCEL_ASYNCHRONOUS, NULL) == 0);
-
- Sleep(100);
-
-#if defined(_MSC_VER) && !defined(__cplusplus)
- __try
- {
- int zero = 0;
- int one = 1;
- /*
- * The deliberate exception condition (zero devide) is
- * in an "if" to avoid being optimised out.
- */
- if (dummy == one/zero)
- Sleep(0);
- }
- __except (EXCEPTION_EXECUTE_HANDLER)
- {
- /* Should get into here. */
- result = ((int)PTHREAD_CANCELED + 2);
- }
-#elif defined(__cplusplus)
- try
- {
- /*
- * I had a zero divide exception here but it
- * wasn't being caught by the catch(...)
- * below under Mingw32. That could be a problem.
- */
- throw dummy;
- }
-#if defined(PtW32CatchAll)
- PtW32CatchAll
-#else
- catch (...)
-#endif
- {
- /* Should get into here. */
- result = ((int)PTHREAD_CANCELED + 2);
- }
-#endif
-
- return (void *) result;
-}
-
-void *
-canceledThread(void * arg)
-{
- int result = ((int)PTHREAD_CANCELED + 1);
- int count;
-
- /* Set to async cancelable */
-
- assert(pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL) == 0);
-
- assert(pthread_setcanceltype(PTHREAD_CANCEL_ASYNCHRONOUS, NULL) == 0);
-
-#if defined(_MSC_VER) && !defined(__cplusplus)
- __try
- {
- /*
- * We wait up to 10 seconds, waking every 0.1 seconds,
- * for a cancelation to be applied to us.
- */
- for (count = 0; count < 100; count++)
- Sleep(100);
- }
- __except (EXCEPTION_EXECUTE_HANDLER)
- {
- /* Should NOT get into here. */
- result = ((int)PTHREAD_CANCELED + 2);
- }
-#elif defined(__cplusplus)
- try
- {
- /*
- * We wait up to 10 seconds, waking every 0.1 seconds,
- * for a cancelation to be applied to us.
- */
- for (count = 0; count < 100; count++)
- Sleep(100);
- }
-#if defined(PtW32CatchAll)
- PtW32CatchAll
-#else
- catch (...)
-#endif
- {
- /* Should NOT get into here. */
- result = ((int)PTHREAD_CANCELED + 2);
- }
-#endif
-
- return (void *) result;
-}
-
-int
-main()
-{
- int failed = 0;
- int i;
- pthread_t mt;
- pthread_t et[NUMTHREADS];
- pthread_t ct[NUMTHREADS];
-
- assert((mt = pthread_self()) != NULL);
-
- for (i = 0; i < NUMTHREADS; i++)
- {
- assert(pthread_create(&et[i], NULL, exceptionedThread, NULL) == 0);
- assert(pthread_create(&ct[i], NULL, canceledThread, NULL) == 0);
- }
-
- /*
- * Code to control or munipulate child threads should probably go here.
- */
- Sleep(1000);
-
- for (i = 0; i < NUMTHREADS; i++)
- {
- assert(pthread_cancel(ct[i]) == 0);
- }
-
- /*
- * Give threads time to run.
- */
- Sleep(NUMTHREADS * 1000);
-
- /*
- * Check any results here. Set "failed" and only print output on failure.
- */
- failed = 0;
- for (i = 0; i < NUMTHREADS; i++)
- {
- int fail = 0;
- int result = 0;
-
- /* Canceled thread */
- assert(pthread_join(ct[i], (void **) &result) == 0);
- assert(!(fail = (result != (int) PTHREAD_CANCELED)));
-
- failed = (failed || fail);
-
- /* Exceptioned thread */
- assert(pthread_join(et[i], (void **) &result) == 0);
- assert(!(fail = (result != ((int) PTHREAD_CANCELED + 2))));
-
- failed = (failed || fail);
- }
-
- assert(!failed);
-
- /*
- * Success.
- */
- return 0;
-}
-
-#else /* defined(_MSC_VER) || defined(__cplusplus) */
-
-#include <stdio.h>
-
-int
-main()
-{
- fprintf(stderr, "Test N/A for this compiler environment.\n");
- return 0;
-}
-
-#endif /* defined(_MSC_VER) || defined(__cplusplus) */
+/* + * File: exception1.c + * + * Test Synopsis: Test passing of exceptions back to the application. + * + * Test Method (Validation or Falsification): + * - + * + * Requirements Tested: + * - + * + * Features Tested: + * - + * + * Cases Tested: + * - + * + * Description: + * - + * + * Environment: + * - + * + * Input: + * - None. + * + * Output: + * - File name, Line number, and failed expression on failure. + * - No output on success. + * + * Assumptions: + * - have working pthread_create, pthread_self, pthread_mutex_lock/unlock + * pthread_testcancel, pthread_cancel, pthread_join + * + * Pass Criteria: + * - Process returns zero exit status. + * + * Fail Criteria: + * - Process returns non-zero exit status. + */ + +#if defined(_MSC_VER) || defined(__cplusplus) + +#include "test.h" + +/* + * Create NUMTHREADS threads in addition to the Main thread. + */ +enum { + NUMTHREADS = 4 +}; + +void * +exceptionedThread(void * arg) +{ + int dummy = 0; + int result = ((int)PTHREAD_CANCELED + 1); + /* Set to async cancelable */ + + assert(pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL) == 0); + + assert(pthread_setcanceltype(PTHREAD_CANCEL_ASYNCHRONOUS, NULL) == 0); + + Sleep(100); + +#if defined(_MSC_VER) && !defined(__cplusplus) + __try + { + int zero = 0; + int one = 1; + /* + * The deliberate exception condition (zero devide) is + * in an "if" to avoid being optimised out. + */ + if (dummy == one/zero) + Sleep(0); + } + __except (EXCEPTION_EXECUTE_HANDLER) + { + /* Should get into here. */ + result = ((int)PTHREAD_CANCELED + 2); + } +#elif defined(__cplusplus) + try + { + /* + * I had a zero divide exception here but it + * wasn't being caught by the catch(...) + * below under Mingw32. That could be a problem. + */ + throw dummy; + } +#if defined(PtW32CatchAll) + PtW32CatchAll +#else + catch (...) +#endif + { + /* Should get into here. */ + result = ((int)PTHREAD_CANCELED + 2); + } +#endif + + return (void *) result; +} + +void * +canceledThread(void * arg) +{ + int result = ((int)PTHREAD_CANCELED + 1); + int count; + + /* Set to async cancelable */ + + assert(pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL) == 0); + + assert(pthread_setcanceltype(PTHREAD_CANCEL_ASYNCHRONOUS, NULL) == 0); + +#if defined(_MSC_VER) && !defined(__cplusplus) + __try + { + /* + * We wait up to 10 seconds, waking every 0.1 seconds, + * for a cancelation to be applied to us. + */ + for (count = 0; count < 100; count++) + Sleep(100); + } + __except (EXCEPTION_EXECUTE_HANDLER) + { + /* Should NOT get into here. */ + result = ((int)PTHREAD_CANCELED + 2); + } +#elif defined(__cplusplus) + try + { + /* + * We wait up to 10 seconds, waking every 0.1 seconds, + * for a cancelation to be applied to us. + */ + for (count = 0; count < 100; count++) + Sleep(100); + } +#if defined(PtW32CatchAll) + PtW32CatchAll +#else + catch (...) +#endif + { + /* Should NOT get into here. */ + result = ((int)PTHREAD_CANCELED + 2); + } +#endif + + return (void *) result; +} + +int +main() +{ + int failed = 0; + int i; + pthread_t mt; + pthread_t et[NUMTHREADS]; + pthread_t ct[NUMTHREADS]; + + assert((mt = pthread_self()) != NULL); + + for (i = 0; i < NUMTHREADS; i++) + { + assert(pthread_create(&et[i], NULL, exceptionedThread, NULL) == 0); + assert(pthread_create(&ct[i], NULL, canceledThread, NULL) == 0); + } + + /* + * Code to control or munipulate child threads should probably go here. + */ + Sleep(1000); + + for (i = 0; i < NUMTHREADS; i++) + { + assert(pthread_cancel(ct[i]) == 0); + } + + /* + * Give threads time to run. + */ + Sleep(NUMTHREADS * 1000); + + /* + * Check any results here. Set "failed" and only print output on failure. + */ + failed = 0; + for (i = 0; i < NUMTHREADS; i++) + { + int fail = 0; + int result = 0; + + /* Canceled thread */ + assert(pthread_join(ct[i], (void **) &result) == 0); + assert(!(fail = (result != (int) PTHREAD_CANCELED))); + + failed = (failed || fail); + + /* Exceptioned thread */ + assert(pthread_join(et[i], (void **) &result) == 0); + assert(!(fail = (result != ((int) PTHREAD_CANCELED + 2)))); + + failed = (failed || fail); + } + + assert(!failed); + + /* + * Success. + */ + return 0; +} + +#else /* defined(_MSC_VER) || defined(__cplusplus) */ + +#include <stdio.h> + +int +main() +{ + fprintf(stderr, "Test N/A for this compiler environment.\n"); + return 0; +} + +#endif /* defined(_MSC_VER) || defined(__cplusplus) */ diff --git a/tests/inherit1.c b/tests/inherit1.c new file mode 100644 index 0000000..a909eb7 --- /dev/null +++ b/tests/inherit1.c @@ -0,0 +1,99 @@ +/* + * File: inherit1.c + * + * Test Synopsis: + * - Test thread priority inheritance. + * + * Test Method (Validation or Falsification): + * - + * + * Requirements Tested: + * - + * + * Features Tested: + * - + * + * Cases Tested: + * - + * + * Description: + * - + * + * Environment: + * - + * + * Input: + * - None. + * + * Output: + * - File name, Line number, and failed expression on failure. + * - No output on success. + * + * Assumptions: + * - + * + * Pass Criteria: + * - Process returns zero exit status. + * + * Fail Criteria: + * - Process returns non-zero exit status. + */ + +#include "test.h" + +void * func(void * arg) +{ + int policy; + struct sched_param param; + + assert(pthread_getschedparam(pthread_self(), &policy, ¶m) == 0); + return (void *) param.sched_priority; +} + +int +main() +{ + pthread_t t; + pthread_t mainThread = pthread_self(); + pthread_attr_t attr; + void * result = NULL; + struct sched_param param; + struct sched_param mainParam; + int maxPrio; + int minPrio; + int prio; + int policy; + int inheritsched = -1; + + assert((maxPrio = sched_get_priority_max(SCHED_OTHER)) != -1); + assert((minPrio = sched_get_priority_min(SCHED_OTHER)) != -1); + + assert(pthread_attr_init(&attr) == 0); + assert(pthread_attr_setinheritsched(&attr, PTHREAD_INHERIT_SCHED) == 0); + assert(pthread_attr_getinheritsched(&attr, &inheritsched) == 0); + assert(inheritsched == PTHREAD_INHERIT_SCHED); + + for (prio = minPrio; prio < maxPrio; prio++) + { + mainParam.sched_priority = prio; + + /* Change the main thread priority */ + assert(pthread_setschedparam(mainThread, SCHED_OTHER, &mainParam) == 0); + assert(pthread_getschedparam(mainThread, &policy, &mainParam) == 0); + assert(policy == SCHED_OTHER); + assert(mainParam.sched_priority == prio); + + for (param.sched_priority = prio; + param.sched_priority <= maxPrio; + param.sched_priority++) + { + /* The new thread create should ignore this new priority */ + assert(pthread_attr_setschedparam(&attr, ¶m) == 0); + assert(pthread_create(&t, &attr, func, NULL) == 0); + pthread_join(t, &result); + assert((int) result == mainParam.sched_priority); + } + } + + return 0; +} diff --git a/tests/mutex3.c b/tests/mutex3.c index 26cb070..07e75b1 100644 --- a/tests/mutex3.c +++ b/tests/mutex3.c @@ -33,8 +33,7 @@ main() assert(pthread_mutex_lock(&mutex1) == 0); assert(pthread_create(&t, NULL, func, NULL) == 0); - - Sleep(2000); + assert(pthread_join(t, NULL) == 0); assert(pthread_mutex_unlock(&mutex1) == 0); diff --git a/tests/mutex4.c b/tests/mutex4.c index 7b989d0..1bf236b 100644 --- a/tests/mutex4.c +++ b/tests/mutex4.c @@ -13,42 +13,61 @@ static int wasHere = 0; -static pthread_mutex_t mutex1 = PTHREAD_MUTEX_INITIALIZER; - -void * locker(void * arg) -{ - wasHere++; - assert(pthread_mutex_lock(&mutex1) == 0); - Sleep(1000); - assert(pthread_mutex_unlock(&mutex1) == 0); - - wasHere++; - return 0; -} +static pthread_mutex_t mutex1; void * unlocker(void * arg) { - wasHere++; - - /* Wait for locker to lock mutex1 */ - Sleep(500); - - assert(pthread_mutex_unlock(&mutex1) == EPERM); + int expectedResult = (int) arg; wasHere++; - return 0; + assert(pthread_mutex_unlock(&mutex1) == expectedResult); + wasHere++; + return NULL; } int main() { pthread_t t; + pthread_mutexattr_t ma; - assert(pthread_create(&t, NULL, locker, NULL) == 0); - assert(pthread_create(&t, NULL, unlocker, NULL) == 0); - Sleep(2000); + assert(pthread_mutexattr_init(&ma) == 0); - assert(wasHere == 4); + wasHere = 0; + assert(pthread_mutexattr_settype(&ma, PTHREAD_MUTEX_DEFAULT) == 0); + assert(pthread_mutex_init(&mutex1, &ma) == 0); + assert(pthread_mutex_lock(&mutex1) == 0); + assert(pthread_create(&t, NULL, unlocker, (void *) 0) == 0); + assert(pthread_join(t, NULL) == 0); + assert(pthread_mutex_unlock(&mutex1) == EPERM); + assert(wasHere == 2); + + wasHere = 0; + assert(pthread_mutexattr_settype(&ma, PTHREAD_MUTEX_NORMAL) == 0); + assert(pthread_mutex_init(&mutex1, &ma) == 0); + assert(pthread_mutex_lock(&mutex1) == 0); + assert(pthread_create(&t, NULL, unlocker, (void *) 0) == 0); + assert(pthread_join(t, NULL) == 0); + assert(pthread_mutex_unlock(&mutex1) == EPERM); + assert(wasHere == 2); + + wasHere = 0; + assert(pthread_mutexattr_settype(&ma, PTHREAD_MUTEX_ERRORCHECK) == 0); + assert(pthread_mutex_init(&mutex1, &ma) == 0); + assert(pthread_mutex_lock(&mutex1) == 0); + assert(pthread_create(&t, NULL, unlocker, (void *) EPERM) == 0); + assert(pthread_join(t, NULL) == 0); + assert(pthread_mutex_unlock(&mutex1) == 0); + assert(wasHere == 2); + + wasHere = 0; + assert(pthread_mutexattr_settype(&ma, PTHREAD_MUTEX_RECURSIVE) == 0); + assert(pthread_mutex_init(&mutex1, &ma) == 0); + assert(pthread_mutex_lock(&mutex1) == 0); + assert(pthread_create(&t, NULL, unlocker, (void *) EPERM) == 0); + assert(pthread_join(t, NULL) == 0); + assert(pthread_mutex_unlock(&mutex1) == 0); + assert(wasHere == 2); return 0; } diff --git a/tests/mutex5.c b/tests/mutex5.c index d7b9064..1f90e19 100644 --- a/tests/mutex5.c +++ b/tests/mutex5.c @@ -13,18 +13,18 @@ int main() { int mxType = -1; - int bool = 0; /* Use to quell GNU compiler warnings. */ + int success = 0; /* Use to quell GNU compiler warnings. */ - assert(bool = PTHREAD_MUTEX_DEFAULT == PTHREAD_MUTEX_NORMAL); - assert(bool = PTHREAD_MUTEX_DEFAULT != PTHREAD_MUTEX_ERRORCHECK); - assert(bool = PTHREAD_MUTEX_DEFAULT != PTHREAD_MUTEX_RECURSIVE); - assert(bool = PTHREAD_MUTEX_RECURSIVE != PTHREAD_MUTEX_ERRORCHECK); + assert(success = PTHREAD_MUTEX_DEFAULT == PTHREAD_MUTEX_NORMAL); + assert(success = PTHREAD_MUTEX_DEFAULT != PTHREAD_MUTEX_ERRORCHECK); + assert(success = PTHREAD_MUTEX_DEFAULT != PTHREAD_MUTEX_RECURSIVE); + assert(success = PTHREAD_MUTEX_RECURSIVE != PTHREAD_MUTEX_ERRORCHECK); - assert(bool = PTHREAD_MUTEX_NORMAL == PTHREAD_MUTEX_FAST_NP); - assert(bool = PTHREAD_MUTEX_RECURSIVE == PTHREAD_MUTEX_RECURSIVE_NP); - assert(bool = PTHREAD_MUTEX_ERRORCHECK == PTHREAD_MUTEX_ERRORCHECK_NP); + assert(success = PTHREAD_MUTEX_NORMAL == PTHREAD_MUTEX_FAST_NP); + assert(success = PTHREAD_MUTEX_RECURSIVE == PTHREAD_MUTEX_RECURSIVE_NP); + assert(success = PTHREAD_MUTEX_ERRORCHECK == PTHREAD_MUTEX_ERRORCHECK_NP); - if (bool == bool) + if (success == success) { assert(pthread_mutexattr_init(&mxAttr) == 0); assert(pthread_mutexattr_gettype(&mxAttr, &mxType) == 0); diff --git a/tests/priority1.c b/tests/priority1.c new file mode 100644 index 0000000..a311028 --- /dev/null +++ b/tests/priority1.c @@ -0,0 +1,78 @@ +/* + * File: priority1.c + * + * Test Synopsis: + * - Test thread priority explicit setting using thread attribute. + * + * Test Method (Validation or Falsification): + * - + * + * Requirements Tested: + * - + * + * Features Tested: + * - + * + * Cases Tested: + * - + * + * Description: + * - + * + * Environment: + * - + * + * Input: + * - None. + * + * Output: + * - File name, Line number, and failed expression on failure. + * - No output on success. + * + * Assumptions: + * - + * + * Pass Criteria: + * - Process returns zero exit status. + * + * Fail Criteria: + * - Process returns non-zero exit status. + */ + +#include "test.h" + +void * func(void * arg) +{ + int policy; + struct sched_param param; + + assert(pthread_getschedparam(pthread_self(), &policy, ¶m) == 0); + assert(policy == SCHED_OTHER); + return (void *) param.sched_priority; +} + +int +main() +{ + pthread_t t; + pthread_attr_t attr; + void * result = NULL; + struct sched_param param; + int maxPrio = sched_get_priority_max(SCHED_OTHER); + int minPrio = sched_get_priority_min(SCHED_OTHER); + + assert(pthread_attr_init(&attr) == 0); + assert(pthread_attr_setinheritsched(&attr, PTHREAD_EXPLICIT_SCHED) == 0); + + for (param.sched_priority = minPrio; + param.sched_priority <= maxPrio; + param.sched_priority++) + { + assert(pthread_attr_setschedparam(&attr, ¶m) == 0); + assert(pthread_create(&t, &attr, func, NULL) == 0); + pthread_join(t, &result); + assert((int) result == param.sched_priority); + } + + return 0; +} diff --git a/tests/priority2.c b/tests/priority2.c new file mode 100644 index 0000000..4dcf385 --- /dev/null +++ b/tests/priority2.c @@ -0,0 +1,80 @@ +/* + * File: priority2.c + * + * Test Synopsis: + * - Test thread priority setting after creation. + * + * Test Method (Validation or Falsification): + * - + * + * Requirements Tested: + * - + * + * Features Tested: + * - + * + * Cases Tested: + * - + * + * Description: + * - + * + * Environment: + * - + * + * Input: + * - None. + * + * Output: + * - File name, Line number, and failed expression on failure. + * - No output on success. + * + * Assumptions: + * - + * + * Pass Criteria: + * - Process returns zero exit status. + * + * Fail Criteria: + * - Process returns non-zero exit status. + */ + +#include "test.h" + +pthread_mutex_t startMx = PTHREAD_MUTEX_INITIALIZER; + +void * func(void * arg) +{ + int policy; + struct sched_param param; + + assert(pthread_mutex_lock(&startMx) == 0); + assert(pthread_getschedparam(pthread_self(), &policy, ¶m) == 0); + assert(pthread_mutex_unlock(&startMx) == 0); + assert(policy == SCHED_OTHER); + return (void *) param.sched_priority; +} + +int +main() +{ + pthread_t t; + void * result = NULL; + struct sched_param param; + int maxPrio = sched_get_priority_max(SCHED_OTHER); + int minPrio = sched_get_priority_min(SCHED_OTHER); + + for (param.sched_priority = minPrio; + param.sched_priority <= maxPrio; + param.sched_priority++) + { + assert(pthread_mutex_lock(&startMx) == 0); + assert(pthread_create(&t, NULL, func, NULL) == 0); + assert(pthread_setschedparam(t, SCHED_OTHER, ¶m) == 0); + assert(pthread_mutex_unlock(&startMx) == 0); + pthread_join(t, &result); + assert((int) result == param.sched_priority); + } + + return 0; +} |