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cosmopolitan/libc/thread
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Justine Tunney e939659b70
Fix ordering of pthread_create(pthread_t *thread) 
This change fixes a bug where signal_latency_async_test would flake less
than 1/1000 of the time. What was happening was pthread_kill(sender_thr)
would return EFAULT. This was because pthread_create() was not returning
the thread object pointer until after clone() had been called. So it was
actually possible for the main thread to stall after calling clone() and
during that time the receiver would launch and receive a signal from the
sender thread, and then fail when it tried to send a pong. I thought I'd
use a barrier at first, in the test, to synchronize thread creation, but
I firmly believe that pthread_create() was to blame and now that's fixed
2025-01-03 17:34:29 -08:00
..
alarm.c flip et / noet in modelines 2023-12-07 22:17:11 -05:00
BUILD.mk Make malloc() go 200x faster 2024-06-05 02:02:14 -07:00
freebsd.internal.h Introduce pthread_condattr_setclock() 2024-09-02 23:45:42 -07:00
getitimer.c Get rid of .internal.h convention in LIBC_INTRIN 2024-07-19 19:38:00 -07:00
getstackbottom.c Rewrite memory manager 2024-06-22 05:45:11 -07:00
itimer.c Remove some legacy cruft 2025-01-02 18:44:07 -08:00
itimer.h Make threads faster and more reliable 2024-12-21 22:13:00 -08:00
lock.h Eliminate cyclic locks in runtime 2024-12-16 22:25:12 -08:00
makecontext.c Remove .internal from more header filenames 2024-08-04 12:52:25 -07:00
mapstack.c Reduce stack virtual memory consumption on Linux 2024-12-25 20:58:08 -08:00
mktls.c Fix fork waiter leak in nsync 2024-12-31 01:30:13 -08:00
openbsd.internal.h Rewrite memory manager 2024-06-22 05:45:11 -07:00
posixthread.internal.h Fix ordering of pthread_create(pthread_t *thread) 2025-01-03 17:34:29 -08:00
pt.internal.h Improve multithreading 2024-07-21 14:40:45 -07:00
pthread_atfork.c Allow user to override pthread mutex and cond 2024-12-23 21:57:52 -08:00
pthread_attr_destroy.c flip et / noet in modelines 2023-12-07 22:17:11 -05:00
pthread_attr_getdetachstate.c flip et / noet in modelines 2023-12-07 22:17:11 -05:00
pthread_attr_getguardsize.c Reduce stack virtual memory consumption on Linux 2024-12-25 20:58:08 -08:00
pthread_attr_getinheritsched.c flip et / noet in modelines 2023-12-07 22:17:11 -05:00
pthread_attr_getschedparam.c flip et / noet in modelines 2023-12-07 22:17:11 -05:00
pthread_attr_getschedpolicy.c flip et / noet in modelines 2023-12-07 22:17:11 -05:00
pthread_attr_getscope.c flip et / noet in modelines 2023-12-07 22:17:11 -05:00
pthread_attr_getsigaltstack_np.c Improve multithreading 2024-07-21 14:40:45 -07:00
pthread_attr_getsigaltstacksize_np.c Improve multithreading 2024-07-21 14:40:45 -07:00
pthread_attr_getsigmask_np.c Apply clang-format update to repo (#1154) 2024-04-25 10:38:00 -07:00
pthread_attr_getstack.c Reduce stack virtual memory consumption on Linux 2024-12-25 20:58:08 -08:00
pthread_attr_getstacksize.c flip et / noet in modelines 2023-12-07 22:17:11 -05:00
pthread_attr_init.c Reduce stack virtual memory consumption on Linux 2024-12-25 20:58:08 -08:00
pthread_attr_setdetachstate.c Make threads faster and more reliable 2024-12-21 22:13:00 -08:00
pthread_attr_setguardsize.c Reduce stack virtual memory consumption on Linux 2024-12-25 20:58:08 -08:00
pthread_attr_setinheritsched.c flip et / noet in modelines 2023-12-07 22:17:11 -05:00
pthread_attr_setschedparam.c flip et / noet in modelines 2023-12-07 22:17:11 -05:00
pthread_attr_setschedpolicy.c flip et / noet in modelines 2023-12-07 22:17:11 -05:00
pthread_attr_setscope.c flip et / noet in modelines 2023-12-07 22:17:11 -05:00
pthread_attr_setsigaltstack_np.c Improve multithreading 2024-07-21 14:40:45 -07:00
pthread_attr_setsigaltstacksize_np.c Improve multithreading 2024-07-21 14:40:45 -07:00
pthread_attr_setsigmask_np.c Make threads faster and more reliable 2024-12-21 22:13:00 -08:00
pthread_attr_setstack.c Reduce stack virtual memory consumption on Linux 2024-12-25 20:58:08 -08:00
pthread_attr_setstacksize.c Improve memory manager and signal handling 2024-12-27 01:33:00 -08:00
pthread_barrier_destroy.c Make more improvements to threads and mappings 2024-07-24 01:19:54 -07:00
pthread_barrier_init.c Make more improvements to threads and mappings 2024-07-24 01:19:54 -07:00
pthread_barrier_wait.c Introduce cosmo_futex_wait and cosmo_futex_wake 2024-11-22 11:25:15 -08:00
pthread_barrierattr_destroy.c flip et / noet in modelines 2023-12-07 22:17:11 -05:00
pthread_barrierattr_getpshared.c Make more improvements to threads and mappings 2024-07-24 01:19:54 -07:00
pthread_barrierattr_init.c Make more improvements to threads and mappings 2024-07-24 01:19:54 -07:00
pthread_barrierattr_setpshared.c Make more improvements to threads and mappings 2024-07-24 01:19:54 -07:00
pthread_cancel.c Fix bugs in poll(), select(), ppoll(), and pselect() 2024-09-02 00:29:52 -07:00
pthread_cond_broadcast.c Eliminate cyclic locks in runtime 2024-12-16 22:25:12 -08:00
pthread_cond_destroy.c Eliminate cyclic locks in runtime 2024-12-16 22:25:12 -08:00
pthread_cond_init.c Allow user to override pthread mutex and cond 2024-12-23 21:57:52 -08:00
pthread_cond_signal.c Allow user to override pthread mutex and cond 2024-12-23 21:57:52 -08:00
pthread_cond_timedwait.c Allow user to override pthread mutex and cond 2024-12-23 21:57:52 -08:00
pthread_cond_wait.c Allow user to override pthread mutex and cond 2024-12-23 21:57:52 -08:00
pthread_condattr_destroy.c flip et / noet in modelines 2023-12-07 22:17:11 -05:00
pthread_condattr_getclock.c Delve into clock rabbit hole 2024-09-04 01:32:46 -07:00
pthread_condattr_getpshared.c Introduce pthread_condattr_setclock() 2024-09-02 23:45:42 -07:00
pthread_condattr_init.c Introduce pthread_condattr_setclock() 2024-09-02 23:45:42 -07:00
pthread_condattr_setclock.c Delve into clock rabbit hole 2024-09-04 01:32:46 -07:00
pthread_condattr_setpshared.c Introduce pthread_condattr_setclock() 2024-09-02 23:45:42 -07:00
pthread_create.c Fix ordering of pthread_create(pthread_t *thread) 2025-01-03 17:34:29 -08:00
pthread_decimate_np.c Fix fork waiter leak in nsync 2024-12-31 01:30:13 -08:00
pthread_detach.c Delve into clock rabbit hole 2024-09-04 01:32:46 -07:00
pthread_equal.c Add much of C11 threads.h API 2024-04-28 07:04:08 -07:00
pthread_exit.c Fix fork waiter leak in nsync 2024-12-31 01:30:13 -08:00
pthread_getaffinity_np.c Make some improvements of little consequence 2024-07-27 08:20:18 -07:00
pthread_getattr_np.c Improve memory manager and signal handling 2024-12-27 01:33:00 -08:00
pthread_getname_np.c Remove .internal from more header filenames 2024-08-04 12:52:25 -07:00
pthread_getschedparam.c flip et / noet in modelines 2023-12-07 22:17:11 -05:00
pthread_getspecific.c Make malloc() go 200x faster 2024-06-05 02:02:14 -07:00
pthread_getthreadid_np.c flip et / noet in modelines 2023-12-07 22:17:11 -05:00
pthread_getunique_np.c flip et / noet in modelines 2023-12-07 22:17:11 -05:00
pthread_join.c flip et / noet in modelines 2023-12-07 22:17:11 -05:00
pthread_key_create.c Make POSIX threads improvements 2024-06-30 15:38:59 -07:00
pthread_key_delete.c Make POSIX threads improvements 2024-06-30 15:38:59 -07:00
pthread_kill.c Use tgkill() on Linux and FreeBSD 2025-01-03 17:27:13 -08:00
pthread_mutex_consistent.c Allow user to override pthread mutex and cond 2024-12-23 21:57:52 -08:00
pthread_mutex_destroy.c Allow user to override pthread mutex and cond 2024-12-23 21:57:52 -08:00
pthread_mutex_init.c Allow user to override pthread mutex and cond 2024-12-23 21:57:52 -08:00
pthread_mutexattr_destroy.c Allow user to override pthread mutex and cond 2024-12-23 21:57:52 -08:00
pthread_mutexattr_getpshared.c Allow user to override pthread mutex and cond 2024-12-23 21:57:52 -08:00
pthread_mutexattr_gettype.c Allow user to override pthread mutex and cond 2024-12-23 21:57:52 -08:00
pthread_mutexattr_init.c Allow user to override pthread mutex and cond 2024-12-23 21:57:52 -08:00
pthread_mutexattr_setpshared.c Allow user to override pthread mutex and cond 2024-12-23 21:57:52 -08:00
pthread_mutexattr_settype.c Allow user to override pthread mutex and cond 2024-12-23 21:57:52 -08:00
pthread_once.c flip et / noet in modelines 2023-12-07 22:17:11 -05:00
pthread_reschedule.c flip et / noet in modelines 2023-12-07 22:17:11 -05:00
pthread_rwlock_destroy.c Support process shared pthread_rwlock 2024-12-13 03:00:06 -08:00
pthread_rwlock_init.c Support process shared pthread_rwlock 2024-12-13 03:00:06 -08:00
pthread_rwlock_rdlock.c Avoid pthread_rwlock_wrlock() starvation 2024-12-24 10:30:11 -08:00
pthread_rwlock_tryrdlock.c Support process shared pthread_rwlock 2024-12-13 03:00:06 -08:00
pthread_rwlock_trywrlock.c Support process shared pthread_rwlock 2024-12-13 03:00:06 -08:00
pthread_rwlock_unlock.c Support process shared pthread_rwlock 2024-12-13 03:00:06 -08:00
pthread_rwlock_wrlock.c Avoid pthread_rwlock_wrlock() starvation 2024-12-24 10:30:11 -08:00
pthread_rwlockattr_destroy.c flip et / noet in modelines 2023-12-07 22:17:11 -05:00
pthread_rwlockattr_getpshared.c Support process shared pthread_rwlock 2024-12-13 03:00:06 -08:00
pthread_rwlockattr_init.c flip et / noet in modelines 2023-12-07 22:17:11 -05:00
pthread_rwlockattr_setpshared.c Support process shared pthread_rwlock 2024-12-13 03:00:06 -08:00
pthread_self.c Add much of C11 threads.h API 2024-04-28 07:04:08 -07:00
pthread_setaffinity_np.c Make some improvements of little consequence 2024-07-27 08:20:18 -07:00
pthread_setcanceltype.c Remove pthread_setcanceltype() from non-dbg strace 2025-01-02 22:25:29 -08:00
pthread_setname_np.c Get rid of .internal.h convention in LIBC_INTRIN 2024-07-19 19:38:00 -07:00
pthread_setschedparam.c flip et / noet in modelines 2023-12-07 22:17:11 -05:00
pthread_setschedparam_freebsd.c flip et / noet in modelines 2023-12-07 22:17:11 -05:00
pthread_setschedprio.c flip et / noet in modelines 2023-12-07 22:17:11 -05:00
pthread_sigmask.c flip et / noet in modelines 2023-12-07 22:17:11 -05:00
pthread_spin_destroy.c Allow user to override pthread mutex and cond 2024-12-23 21:57:52 -08:00
pthread_spin_init.c Allow user to override pthread mutex and cond 2024-12-23 21:57:52 -08:00
pthread_spin_lock.c Allow user to override pthread mutex and cond 2024-12-23 21:57:52 -08:00
pthread_spin_trylock.c Allow user to override pthread mutex and cond 2024-12-23 21:57:52 -08:00
pthread_spin_unlock.c Allow user to override pthread mutex and cond 2024-12-23 21:57:52 -08:00
pthread_timedjoin_np.c Fix fork waiter leak in nsync 2024-12-31 01:30:13 -08:00
pthread_tryjoin_np.c Work around copy_file_range() bug in eCryptFs 2024-09-29 16:35:38 -07:00
pthread_zombify.c flip et / noet in modelines 2023-12-07 22:17:11 -05:00
README.md Use *NSYNC for POSIX threads locking APIs 2022-09-11 11:04:50 -07:00
sem_destroy.c Speed up unnamed POSIX semaphores 2024-09-13 06:25:27 -07:00
sem_getvalue.c flip et / noet in modelines 2023-12-07 22:17:11 -05:00
sem_init.c Speed up unnamed POSIX semaphores 2024-09-13 06:25:27 -07:00
sem_open.c Allow user to override pthread mutex and cond 2024-12-23 21:57:52 -08:00
sem_post.c Introduce cosmo_futex_wait and cosmo_futex_wake 2024-11-22 11:25:15 -08:00
sem_timedwait.c Introduce cosmo_futex_wait and cosmo_futex_wake 2024-11-22 11:25:15 -08:00
sem_trywait.c Apply clang-format update to repo (#1154) 2024-04-25 10:38:00 -07:00
sem_wait.c flip et / noet in modelines 2023-12-07 22:17:11 -05:00
semaphore.h Remove leaf attribute where appropriate 2025-01-02 08:07:15 -08:00
setitimer.c Get rid of .internal.h convention in LIBC_INTRIN 2024-07-19 19:38:00 -07:00
thrd_create.c Add much of C11 threads.h API 2024-04-28 07:04:08 -07:00
thrd_detach.c Add much of C11 threads.h API 2024-04-28 07:04:08 -07:00
thrd_join.c Add much of C11 threads.h API 2024-04-28 07:04:08 -07:00
thread.h Remove leaf attribute where appropriate 2025-01-02 08:07:15 -08:00
thread2.h Remove leaf attribute where appropriate 2025-01-02 08:07:15 -08:00
threads.h Remove more _Atomic keywords from public headers 2024-07-24 13:56:03 -07:00
tls.h Remove some legacy cruft 2025-01-02 18:44:07 -08:00
ualarm.c Delve into clock rabbit hole 2024-09-04 01:32:46 -07:00
xnu.internal.h Reduce header complexity 2023-11-28 14:39:42 -08:00

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.