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* 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].
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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.
./tests/ChangeLog:
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.
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2000-12-28 Ross Johnson <rpj@special.ise.canberra.edu.au>
* 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.
2000-09-09 Ross Johnson <rpj@special.ise.canberra.edu.au>
* pthread.h (ctime_r): Fix arg.
./tests/ChangeLog:
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.
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* 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.
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* 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.
tests/ChangeLog:
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.
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* cleanup.c (pthread_pop_cleanup): Remove _pthread
prefix from __except and catch keywords; implement.h
now simply undefines _pthread__except and
_pthread_catch if defined; VC++ was not textually
substituting _pthread_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 (_pthread_threadStart): Ditto.
(_pthread_callUserDestroyRoutines): Ditto.
* implement.h (_pthread__except): Remove #define.
(_pthread_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.
tests/ChangeLog:
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.
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* 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 Pthread_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.
tests:
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.
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* 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 (_pthread_threadStart): Initialise ei[].
(_pthread_threadStart): When beginthread is used to start the
thread, force waiting until the creator thread had the
thread handle.
* cancel.c (_pthread_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 (_pthread_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 (_pthread_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.
tests/ChangeLog:
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.
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- asynchronous cancellation added
- attempt to hide internal exceptions from applications
- kernel32 load/free problem fixed
- new tests
- changes only to comments in some tests
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