Konstantin Belousov 6044c03a37 Apparently there are some popular programs around which assume that it ... is safe to call pthread_mutex_init() on the same shared mutex several times. POSIX claims that the behaviour in this case is undefined. Make this working by only allowing one caller to initialize the mutex. Other callers either see already completed initialization and do nothing, or busy-loop yielding while designated initializer finishes. Also make the API requirements loose by initializing mutexes on other pthread_mutex*() calls if they see uninitialized shared mutex. Only mutexes provide the hack for now, but it could be also implemented for other process shared primitives from libthr. Reported and tested by: "Oleg V. Nauman" <oleg@opentransfer.com> Sponsored by: The FreeBSD Foundation		2016-03-22 10:51:42 +00:00
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Makefile.inc	Implement process-shared locks support for libthr.so.3, without	2016-02-28 17:52:33 +00:00
thr_affinity.c	Don't compare thread pointers again.	2010-09-13 11:58:42 +00:00
thr_attr.c	Use sysctl kern.sched.cpusetsize to retrieve size of kernel cpuset.	2010-11-02 02:13:13 +00:00
thr_autoinit.c
thr_barrier.c	Implement process-shared locks support for libthr.so.3, without	2016-02-28 17:52:33 +00:00
thr_barrierattr.c	Implement process-shared locks support for libthr.so.3, without	2016-02-28 17:52:33 +00:00
thr_cancel.c	The SUSv4tc1 requires that pthread_setcancelstate() shall be not a	2013-06-19 04:47:41 +00:00
thr_clean.c	_pthread_cleanup_push: fix allocator sizeof operand mismatch	2015-04-22 16:51:21 +00:00
thr_concurrency.c	WARNS level 4 cleanup.	2006-04-04 02:57:49 +00:00
thr_cond.c	Implement process-shared locks support for libthr.so.3, without	2016-02-28 17:52:33 +00:00
thr_condattr.c	Implement process-shared locks support for libthr.so.3, without	2016-02-28 17:52:33 +00:00
thr_create.c	Implement process-shared locks support for libthr.so.3, without	2016-02-28 17:52:33 +00:00
thr_ctrdtr.c	Merge all the copies of _tcb_ctor and _tcb_dtor.	2015-01-21 16:41:05 +00:00
thr_detach.c	Convert thread list lock from mutex to rwlock.	2010-09-13 07:03:01 +00:00
thr_equal.c	Remove 3rd clause, renumber, ok per email	2007-01-12 07:26:21 +00:00
thr_event.c	Allow psaddr_t to be widened by using thr_pread_{int,long,ptr},	2008-09-14 16:07:21 +00:00
thr_exit.c	Revert r274772: it is not valid on MIPS	2014-11-25 03:50:31 +00:00
thr_fork.c	Lock pshared_lock shared around fork, to ensure that the COW snapshot	2016-03-21 06:52:35 +00:00
thr_getcpuclockid.c	Implement syscall clock_getcpuclockid2, so we can get a clock id	2012-08-17 02:26:31 +00:00
thr_getprio.c	Remove 3rd clause, renumber, ok per email	2007-01-12 07:26:21 +00:00
thr_getschedparam.c	Don't forget to initialize return value.	2012-07-20 05:47:12 +00:00
thr_getthreadid_np.c	Introduce a non-portable function pthread_getthreadid_np(3) to retrieve	2011-02-07 21:26:46 +00:00
thr_info.c	Simplify code by replacing _thr_ref_add() with _thr_find_thread().	2012-07-20 03:37:19 +00:00
thr_init.c	Lock pshared_lock shared around fork, to ensure that the COW snapshot	2016-03-21 06:52:35 +00:00
thr_join.c	Fix typo.	2010-09-19 08:55:36 +00:00
thr_kern.c	libthr: Always use the threaded rtld lock implementation.	2013-01-18 23:08:40 +00:00
thr_kill.c	In _pthread_kill(), if passed pthread is current thread, do not send	2014-02-01 18:13:18 +00:00
thr_list.c	Make code more stable by checking NULL pointers.	2012-02-11 04:12:12 +00:00
thr_main_np.c	WARNS level 4 cleanup.	2006-04-04 02:57:49 +00:00
thr_multi_np.c	Remove 3rd clause, renumber, ok per email	2007-01-12 07:26:21 +00:00
thr_mutex.c	Apparently there are some popular programs around which assume that it	2016-03-22 10:51:42 +00:00
thr_mutexattr.c	Implement process-shared locks support for libthr.so.3, without	2016-02-28 17:52:33 +00:00
thr_once.c	Style. Use ANSI definition, wrap long lines, no initialization in	2015-09-08 08:48:53 +00:00
thr_printf.c	Fix known issues which blow up the process after dlopen("libthr.so")	2015-01-03 18:38:46 +00:00
thr_private.h	Apparently there are some popular programs around which assume that it	2016-03-22 10:51:42 +00:00
thr_pshared.c	Lock pshared_lock shared around fork, to ensure that the COW snapshot	2016-03-21 06:52:35 +00:00
thr_pspinlock.c	Implement process-shared spinlocks.	2016-03-21 06:40:54 +00:00
thr_resume_np.c	In suspend_common(), don't wait for a thread which is in creation, because	2012-08-27 03:09:39 +00:00
thr_rtld.c	From libthr, remove special and strange code to set up session and	2016-03-21 06:46:16 +00:00
thr_rwlock.c	Implement process-shared locks support for libthr.so.3, without	2016-02-28 17:52:33 +00:00
thr_rwlockattr.c	Implement process-shared locks support for libthr.so.3, without	2016-02-28 17:52:33 +00:00
thr_self.c	Remove 3rd clause, renumber, ok per email	2007-01-12 07:26:21 +00:00
thr_sem.c	Use umtx to implement process sharable semaphore, to make this work,	2010-01-05 02:37:59 +00:00
thr_setprio.c	Don't assign same value.	2012-07-20 03:22:17 +00:00
thr_setschedparam.c	Don't assign same value.	2012-07-20 03:22:17 +00:00
thr_sig.c	Pre-resolve symbols required for the deferred signal processing. This	2015-08-10 17:02:42 +00:00
thr_single_np.c	Remove 3rd clause, renumber, ok per email	2007-01-12 07:26:21 +00:00
thr_sleepq.c	Create a common function lookup() to search a chan, this eliminates	2012-05-10 09:30:37 +00:00
thr_spec.c	Some third-party malloc(3) implementations use pthread_setspecific(3)	2015-05-15 08:40:17 +00:00
thr_spinlock.c	Properly interpose libc spinlocks, was missed in r276630. In	2015-02-14 11:47:40 +00:00
thr_stack.c	If libthr.so is dlopened without RTLD_GLOBAL flag, the libthr symbols	2016-02-08 19:24:13 +00:00
thr_suspend_np.c	In suspend_common(), don't wait for a thread which is in creation, because	2012-08-27 03:09:39 +00:00
thr_switch_np.c	WARNS level 4 cleanup.	2006-04-04 02:57:49 +00:00
thr_symbols.c	Remove 3rd clause, renumber, ok per email	2007-01-12 07:26:21 +00:00
thr_syscalls.c	If libthr.so is dlopened without RTLD_GLOBAL flag, the libthr symbols	2016-02-08 19:24:13 +00:00
thr_umtx.c	libthr: const-ify two variables	2016-01-13 22:34:55 +00:00
thr_umtx.h	libthr: Fix a parameter name in an internal header file.	2013-04-27 14:21:36 +00:00
thr_yield.c	Remove 3rd clause, renumber, ok per email	2007-01-12 07:26:21 +00:00