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but it still has known bugs.
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* 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.
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* 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.
(cond_wait_cleanup*): Rename to ptw32_cond_wait_cleanup*.
(ptw32_cond_timedwait): Add comments.
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* 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*.
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* private.c (ptw32_throw): Fix exception test;
move exceptionInformation declaration.
* tsd.c (pthread_key_create): newkey wrongly declared.
* pthread.h: Fix comment block.
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* 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.
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* implement.h (PTW32_EPS_CANCEL/PTW32_EPS_EXIT):
Must be defined for all compilers - used as generic
exception selectors by ptw32_throw().
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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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* create2.c: New; Test that pthread_t contains
the W32 HANDLE before it calls the thread routine
proper.
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* 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).
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* tsd.c (pthread_create_key): Initialise temporary
key before returning it's address to avoid race
conditions.
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or snapshot.
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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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* dll.c (dllMain): Remove 2000-07-21 change - problem
appears to be in pthread_create().
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.
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* Makefile: Remove inconsistencies in 'cl' args
- Erik Hensema <erik.hensema@group2000.nl>
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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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(ETIMEDOUT): Change fallback value to that defined by winsock.h.
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* 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>
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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>
tests/ChangeLog:
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>
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* 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>
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* 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>.
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* rwlock6.c: New test.
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* 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.
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* rwlock5.c: New test.
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