src-test2/lib/libpthread/thread/thr_sem.c, branch release/7.3.0_cvsFreeBSD source treehttps://cgit-dev.freebsd.org/src-test2/atom?h=release%2F7.3.0_cvs2007-10-09T14:16:39ZRepo copy libpthreads to libkse.2007-10-09T14:16:39ZDavid E. O'Brienobrien@FreeBSD.org2007-10-09T14:16:39Zurn:sha1:aaffe2b157f65a534c955edb61c88aa1b764266d
This introduces the WITHOUT_LIBKSE nob,
and changes WITHOUT_LIBPTHREADS to mean with neither threading libs.
Approved by: re(kensmith)
Fix prototype mismatch and use of un-namespaced pthread functions.2006-03-28T21:50:12ZDag-Erling Smørgravdes@FreeBSD.org2006-03-28T21:50:12Zurn:sha1:adb19548bd8c7a0b3883ddd6cb46d20e11fe34c3Add compatibility symbol maps. libpthread (.so.1 and .so.2)2006-03-13T00:59:51ZDaniel Eischendeischen@FreeBSD.org2006-03-13T00:59:51Zurn:sha1:e62165c8b0f7d6452c0033127a0fd8ad1d9e34d3
used LIBTHREAD_1_0 as its version definition, but now needs
to define its symbols in the same namespace used by libc.
The compatibility hooks allows you to use libraries and
binaries built and linked to libpthread before libc was
built with symbol versioning. The shims can be removed if
libpthread is given a version bump.
Reviewed by: davidxu
Include needed headers that were obtained through <pthread.h>. Sort headers2005-09-01T15:21:23ZStefan Farfelederstefanf@FreeBSD.org2005-09-01T15:21:23Zurn:sha1:7e4cbc3a50953cecc308df62bd21662be1be54d5
while here.
Use a generic way to back threads out of wait queues when handling2004-12-18T18:07:37ZDaniel Eischendeischen@FreeBSD.org2004-12-18T18:07:37Zurn:sha1:843d4004b367db61428fa1cbf611cdbd2791d672
signals instead of having more intricate knowledge of thread state
within signal handling.
Simplify signal code because of above (by David Xu).
Use macros for libpthread usage of pthread_cleanup_push() and
pthread_cleanup_pop(). This removes some instances of malloc()
and free() from the semaphore and pthread_once() implementations.
When single threaded and forking(), make sure that the current
thread's signal mask is inherited by the forked thread.
Use private mutexes for libc and libpthread. Signals are
deferred while threads hold private mutexes. This fix also
breaks www/linuxpluginwrapper; a patch that fixes it is at
http://people.freebsd.org/~deischen/kse/linuxpluginwrapper.diff
Fix race condition in condition variables where handling a
signal (pthread_kill() or kill()) may not see a wakeup
(pthread_cond_signal() or pthread_cond_broadcast()).
In collaboration with: davidxu
Add cancellation point to sem_wait() and sem_timedwait() for pshared2004-02-06T15:20:56ZDaniel Eischendeischen@FreeBSD.org2004-02-06T15:20:56Zurn:sha1:4b4d63bdfeb3808926e01cd594250db1a47df0d5
semaphores. Also add cancellation cleanup handlers to keep semaphores
in a consistent state.
Submitted in part by: davidxu
Reviewed by: davidxu
Provide a userland version of non-pshared semaphores and add cancellation2004-02-03T05:50:07ZDaniel Eischendeischen@FreeBSD.org2004-02-03T05:50:07Zurn:sha1:6bf50f98b1d8ef1e39dcfd2b41e10d6592496e13
points to sem_wait() and sem_timedwait(). Also make sem_post signal-safe.
Rename _thr_enter_cancellation_point to _thr_cancel_enter, rename2003-12-09T02:20:56ZDavid Xudavidxu@FreeBSD.org2003-12-09T02:20:56Zurn:sha1:71679e629d6933bda40564da2a54894aed1358f3
_thr_leave_cancellation_point to _thr_cancel_leave, add a parameter
to _thr_cancel_leave to indicate whether cancellation point should be
checked, this gives us an option to not check cancallation point if
a syscall successfully returns to avoid any leaks, current I have
creat(), open() and fcntl(F_DUPFD) to not check cancellation point
after they sucessfully returned.
Replace some members in structure kse with bit flags to same some
memory.
Conditionally compile THR_ASSERT to nothing if _PTHREAD_INVARIANTS is
not defined.
Inline some small functions in thr_cancel.c.
Use __predict_false in thr_kern.c for some executed only once code.
Reviewd by: deischen
Revamp libpthread so that it has a chance of working in an SMP2003-04-18T05:04:16ZDaniel Eischendeischen@FreeBSD.org2003-04-18T05:04:16Zurn:sha1:a0240e2cb0b1ef8e5b61930ac2b850c884daaba8
environment. This includes support for multiple KSEs and KSEGs.
The ability to create more than 1 KSE via pthread_setconcurrency()
is in the works as well as support for PTHREAD_SCOPE_SYSTEM threads.
Those should come shortly.
There are still some known issues which davidxu and I are working
on, but it'll make it easier for us by committing what we have.
This library now passes all of the ACE tests that libc_r passes
with the exception of one. It also seems to work OK with KDE
including konqueror, kwrite, etc. I haven't been able to get
mozilla to run due to lack of java plugin, so I'd be interested
to see how it works with that.
Reviewed by: davidxu
Make the changes needed for libpthread to compile in its new home.2002-09-16T08:45:36ZJonathan Minimini@FreeBSD.org2002-09-16T08:45:36Zurn:sha1:cc118d869b950c0c5b934133ed4184e83d88553b
The new libpthread will provide POSIX threading support using KSE.
These files were previously repo-copied from src/lib/libc_r.
Reviewed by: deischen
Approved by: -arch