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cosmopolitan/libc/thread
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Justine Tunney 60cb435cb4
Implement pthread_atfork() 
If threads are being used, then fork() will now acquire and release and
runtime locks so that fork() may be safely used from threads. This also
makes vfork() thread safe, because pthread mutexes will do nothing when
the process is a child of vfork(). More torture tests have been written
to confirm this all works like a charm. Additionally:

- Invent hexpcpy() api
- Rename nsync_malloc_() to kmalloc()
- Complete posix named semaphore implementation
- Make pthread_create() asynchronous signal safe
- Add rm, rmdir, and touch to command interpreter builtins
- Invent sigisprecious() and modify sigset functions to use it
- Add unit tests for posix_spawn() attributes and fix its bugs

One unresolved problem is the reclaiming of *NSYNC waiter memory in the
forked child processes, within apps which have threads waiting on locks
2022-10-16 12:25:13 -07:00
..
freebsd.internal.h Add posix semaphores support 2022-10-14 09:21:02 -07:00
mktls.c Elevate Windows production worthiness 2022-10-13 13:44:41 -07:00
openbsd.internal.h Make fixes and improvements 2022-06-25 21:09:09 -07:00
posixthread.internal.h Implement pthread_atfork() 2022-10-16 12:25:13 -07:00
pthread_atfork.c Implement pthread_atfork() 2022-10-16 12:25:13 -07:00
pthread_attr_destroy.c Add *NSYNC unit test suite 2022-10-07 21:34:15 -07:00
pthread_attr_getdetachstate.c Make more improvements to threading support 2022-10-09 00:08:47 -07:00
pthread_attr_getguardsize.c Make more improvements to threading support 2022-10-09 00:08:47 -07:00
pthread_attr_getinheritsched.c Make more improvements to threading support 2022-10-09 00:08:47 -07:00
pthread_attr_getschedparam.c Make more improvements to threading support 2022-10-09 00:08:47 -07:00
pthread_attr_getschedpolicy.c Make more improvements to threading support 2022-10-09 00:08:47 -07:00
pthread_attr_getscope.c Make more improvements to threading support 2022-10-09 00:08:47 -07:00
pthread_attr_getstack.c Make more improvements to threading support 2022-10-09 00:08:47 -07:00
pthread_attr_getstacksize.c Make more improvements to threading support 2022-10-09 00:08:47 -07:00
pthread_attr_init.c Make more improvements to threading support 2022-10-09 00:08:47 -07:00
pthread_attr_setdetachstate.c Make more improvements to threading support 2022-10-09 00:08:47 -07:00
pthread_attr_setguardsize.c Make more improvements to threading support 2022-10-09 00:08:47 -07:00
pthread_attr_setinheritsched.c Fix bugs and make code tinier 2022-10-09 23:21:34 -07:00
pthread_attr_setschedparam.c Make more improvements to threading support 2022-10-09 00:08:47 -07:00
pthread_attr_setschedpolicy.c Make more improvements to threading support 2022-10-09 00:08:47 -07:00
pthread_attr_setscope.c Make more improvements to threading support 2022-10-09 00:08:47 -07:00
pthread_attr_setstack.c Make more improvements to threading support 2022-10-09 00:08:47 -07:00
pthread_attr_setstacksize.c Make more improvements to threading support 2022-10-09 00:08:47 -07:00
pthread_barrier_destroy.c Use *NSYNC for POSIX threads locking APIs 2022-09-11 11:04:50 -07:00
pthread_barrier_init.c Use *NSYNC for POSIX threads locking APIs 2022-09-11 11:04:50 -07:00
pthread_barrier_wait.c Improve system call wrappers 2022-09-19 15:06:25 -07:00
pthread_barrierattr_destroy.c Tidy up the threading implementation 2022-09-10 02:56:25 -07:00
pthread_barrierattr_getpshared.c Use *NSYNC for POSIX threads locking APIs 2022-09-11 11:04:50 -07:00
pthread_barrierattr_init.c Tidy up the threading implementation 2022-09-10 02:56:25 -07:00
pthread_barrierattr_setpshared.c Use *NSYNC for POSIX threads locking APIs 2022-09-11 11:04:50 -07:00
pthread_cancel.c Improve cosmo's conformance to libc-test 2022-10-10 17:52:41 -07:00
pthread_cleanup.c Make more improvements to threading support 2022-10-09 00:08:47 -07:00
pthread_cleanup_pop.c Make more improvements to threading support 2022-10-09 00:08:47 -07:00
pthread_cleanup_push.c Make more improvements to threading support 2022-10-09 00:08:47 -07:00
pthread_cond_broadcast.c Improve system call wrappers 2022-09-19 15:06:25 -07:00
pthread_cond_destroy.c Use *NSYNC for POSIX threads locking APIs 2022-09-11 11:04:50 -07:00
pthread_cond_init.c Use *NSYNC for POSIX threads locking APIs 2022-09-11 11:04:50 -07:00
pthread_cond_signal.c Improve system call wrappers 2022-09-19 15:06:25 -07:00
pthread_cond_timedwait.c Support futexes on FreeBSD 2022-10-02 11:57:13 -07:00
pthread_cond_wait.c Improve system call wrappers 2022-09-19 15:06:25 -07:00
pthread_condattr_destroy.c Tidy up the threading implementation 2022-09-10 02:56:25 -07:00
pthread_condattr_getpshared.c Use *NSYNC for POSIX threads locking APIs 2022-09-11 11:04:50 -07:00
pthread_condattr_init.c Tidy up the threading implementation 2022-09-10 02:56:25 -07:00
pthread_condattr_setpshared.c Use *NSYNC for POSIX threads locking APIs 2022-09-11 11:04:50 -07:00
pthread_create.c Implement pthread_atfork() 2022-10-16 12:25:13 -07:00
pthread_detach.c Add *NSYNC unit test suite 2022-10-07 21:34:15 -07:00
pthread_equal.c Improve cosmo's conformance to libc-test 2022-10-10 17:52:41 -07:00
pthread_exit.c Add posix semaphores support 2022-10-14 09:21:02 -07:00
pthread_getaffinity_np.c Improve the affinity system calls 2022-10-06 15:08:29 -07:00
pthread_getattr_np.c Make more improvements to threading support 2022-10-09 00:08:47 -07:00
pthread_getname_np.c Add posix semaphores support 2022-10-14 09:21:02 -07:00
pthread_getschedparam.c Make more improvements to threading support 2022-10-09 00:08:47 -07:00
pthread_getthreadid_np.c Tidy up the threading implementation 2022-09-10 02:56:25 -07:00
pthread_getunique_np.c Tidy up the threading implementation 2022-09-10 02:56:25 -07:00
pthread_join.c Make more improvements to threading support 2022-10-09 00:08:47 -07:00
pthread_kill.c Improve cosmo's conformance to libc-test 2022-10-10 17:52:41 -07:00
pthread_mutex_destroy.c Use *NSYNC for POSIX threads locking APIs 2022-09-11 11:04:50 -07:00
pthread_mutexattr_destroy.c Tidy up the threading implementation 2022-09-10 02:56:25 -07:00
pthread_mutexattr_getpshared.c Use *NSYNC for POSIX threads locking APIs 2022-09-11 11:04:50 -07:00
pthread_mutexattr_gettype.c Use *NSYNC for POSIX threads locking APIs 2022-09-11 11:04:50 -07:00
pthread_mutexattr_init.c Tidy up the threading implementation 2022-09-10 02:56:25 -07:00
pthread_mutexattr_setpshared.c Use *NSYNC for POSIX threads locking APIs 2022-09-11 11:04:50 -07:00
pthread_mutexattr_settype.c Use *NSYNC for POSIX threads locking APIs 2022-09-11 11:04:50 -07:00
pthread_reschedule.c Make more improvements to threading support 2022-10-09 00:08:47 -07:00
pthread_rwlock_destroy.c Use *NSYNC for POSIX threads locking APIs 2022-09-11 11:04:50 -07:00
pthread_rwlock_init.c Use *NSYNC for POSIX threads locking APIs 2022-09-11 11:04:50 -07:00
pthread_rwlock_rdlock.c Improve system call wrappers 2022-09-19 15:06:25 -07:00
pthread_rwlock_unlock.c Improve system call wrappers 2022-09-19 15:06:25 -07:00
pthread_rwlock_wrlock.c Improve system call wrappers 2022-09-19 15:06:25 -07:00
pthread_rwlockattr_destroy.c Tidy up the threading implementation 2022-09-10 02:56:25 -07:00
pthread_rwlockattr_getpshared.c Use *NSYNC for POSIX threads locking APIs 2022-09-11 11:04:50 -07:00
pthread_rwlockattr_init.c Tidy up the threading implementation 2022-09-10 02:56:25 -07:00
pthread_rwlockattr_setpshared.c Use *NSYNC for POSIX threads locking APIs 2022-09-11 11:04:50 -07:00
pthread_self.c Improve cosmo's conformance to libc-test 2022-10-10 17:52:41 -07:00
pthread_setaffinity_np.c Improve the affinity system calls 2022-10-06 15:08:29 -07:00
pthread_setcancelstate.c Improve cosmo's conformance to libc-test 2022-10-10 17:52:41 -07:00
pthread_setcanceltype.c Improve cosmo's conformance to libc-test 2022-10-10 17:52:41 -07:00
pthread_setname_np.c Add posix semaphores support 2022-10-14 09:21:02 -07:00
pthread_setschedparam.c Make more improvements to threading support 2022-10-09 00:08:47 -07:00
pthread_setschedparam_freebsd.c Add sys_ prefix to unwrapped system calls 2022-09-13 11:20:35 -07:00
pthread_setschedprio.c Improve cosmo's conformance to libc-test 2022-10-10 17:52:41 -07:00
pthread_sigmask.c Add posix semaphores support 2022-10-14 09:21:02 -07:00
pthread_spin_destroy.c Improve system call wrappers 2022-09-19 15:06:25 -07:00
pthread_spin_init.c Improve system call wrappers 2022-09-19 15:06:25 -07:00
pthread_spin_lock.c Improve system call wrappers 2022-09-19 15:06:25 -07:00
pthread_spin_trylock.c Improve system call wrappers 2022-09-19 15:06:25 -07:00
pthread_spin_unlock.c Improve system call wrappers 2022-09-19 15:06:25 -07:00
pthread_ungarbage.c Make more improvements to threading support 2022-10-09 00:08:47 -07:00
pthread_zombies.c Implement pthread_atfork() 2022-10-16 12:25:13 -07:00
README.md Use *NSYNC for POSIX threads locking APIs 2022-09-11 11:04:50 -07:00
sem_destroy.c Implement pthread_atfork() 2022-10-16 12:25:13 -07:00
sem_getvalue.c Implement pthread_atfork() 2022-10-16 12:25:13 -07:00
sem_init.c Implement pthread_atfork() 2022-10-16 12:25:13 -07:00
sem_open.c Implement pthread_atfork() 2022-10-16 12:25:13 -07:00
sem_path_np.c Implement pthread_atfork() 2022-10-16 12:25:13 -07:00
sem_post.c Implement pthread_atfork() 2022-10-16 12:25:13 -07:00
sem_timedwait.c Implement pthread_atfork() 2022-10-16 12:25:13 -07:00
sem_trywait.c Implement pthread_atfork() 2022-10-16 12:25:13 -07:00
sem_wait.c Add posix semaphores support 2022-10-14 09:21:02 -07:00
semaphore.h Implement pthread_atfork() 2022-10-16 12:25:13 -07:00
spawn.c Clean up threading code some more 2022-09-13 20:17:34 -07:00
spawn.h Clean up threading code some more 2022-09-13 20:17:34 -07:00
thread.h Implement pthread_atfork() 2022-10-16 12:25:13 -07:00
thread.mk Improve pthread_join() 2022-09-16 14:02:06 -07:00
thread2.h Tidy up the threading implementation 2022-09-10 02:56:25 -07:00
tls.h Implement pthread_atfork() 2022-10-16 12:25:13 -07:00
tls2.h Elevate Windows production worthiness 2022-10-13 13:44:41 -07:00
wait0.c Add posix semaphores support 2022-10-14 09:21:02 -07:00
wait0.internal.h Clean up threading code some more 2022-09-13 20:17:34 -07:00
xnu.internal.h Remove a bunch of stuff that shouldn't be in docs 2022-09-20 02:57:46 -07:00

README.md

Cosmpolitan POSIX Threads Library

Cosmopolitan Libc implements threading as it is written in The Open Group Base Specifications Issue 7, 2018 edition IEEE Std 1003.1-2017 (Revision of IEEE Std 1003.1-2008) in addition to GNU extensions.