David Xu 7de1ecef2d Add two commands to _umtx_op system call to allow a simple mutex to be ... locked and unlocked completely in userland. by locking and unlocking mutex in userland, it reduces the total time a mutex is locked by a thread, in some application code, a mutex only protects a small piece of code, the code's execution time is less than a simple system call, if a lock contention happens, however in current implemenation, the lock holder has to extend its locking time and enter kernel to unlock it, the change avoids this disadvantage, it first sets mutex to free state and then enters kernel and wake one waiter up. This improves performance dramatically in some sysbench mutex tests. Tested by: kris Sounds great: jeff		2008-06-24 07:32:12 +00:00
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Makefile.inc	Add POSIX pthread API pthread_getcpuclockid() to get a thread's cpu	2008-03-22 09:59:20 +00:00
thr_affinity.c	Avoid various shadowed variables. libthr is now almost WARNS=4 clean except	2008-04-23 21:06:51 +00:00
thr_atfork.c
thr_attr.c	Avoid various shadowed variables. libthr is now almost WARNS=4 clean except	2008-04-23 21:06:51 +00:00
thr_autoinit.c
thr_barrier.c
thr_barrierattr.c
thr_cancel.c
thr_clean.c	Make pthread_cleanup_push() and pthread_cleanup_pop() as a pair of macros,	2008-06-09 01:14:10 +00:00
thr_concurrency.c
thr_cond.c	Remove unused functions.	2008-04-02 08:33:42 +00:00
thr_condattr.c
thr_create.c	Use UMTX_OP_WAIT_UINT_PRIVATE and UMTX_OP_WAKE_PRIVATE to save	2008-04-29 03:58:18 +00:00
thr_detach.c
thr_equal.c
thr_event.c
thr_exit.c	Remove libc_r's remnant code.	2008-05-06 07:27:11 +00:00
thr_fork.c
thr_getcpuclockid.c	Add POSIX pthread API pthread_getcpuclockid() to get a thread's cpu	2008-03-22 09:59:20 +00:00
thr_getprio.c
thr_getschedparam.c
thr_info.c
thr_init.c	- Reduce function call overhead for uncontended case.	2008-05-29 07:57:33 +00:00
thr_join.c
thr_kern.c
thr_kill.c
thr_list.c
thr_main_np.c
thr_multi_np.c
thr_mutex.c	Add two commands to _umtx_op system call to allow a simple mutex to be	2008-06-24 07:32:12 +00:00
thr_mutexattr.c	pthread_mutexattr_destroy() was accidentally broken in last revision,	2008-03-20 11:47:08 +00:00
thr_once.c	Eliminate global mutex by using pthread_once's state field as	2008-05-30 00:02:59 +00:00
thr_printf.c
thr_private.h	Make pthread_cleanup_push() and pthread_cleanup_pop() as a pair of macros,	2008-06-09 01:14:10 +00:00
thr_pspinlock.c	Reverse the logic of UP and SMP.	2007-10-16 07:36:02 +00:00
thr_resume_np.c	Use UMTX_OP_WAIT_UINT_PRIVATE and UMTX_OP_WAKE_PRIVATE to save	2008-04-29 03:58:18 +00:00
thr_rtld.c	Use native rwlock.	2008-04-22 06:44:11 +00:00
thr_rwlock.c	don't include pthread_np.h, it is not used.	2008-04-14 08:08:40 +00:00
thr_rwlockattr.c
thr_self.c
thr_sem.c	Use UMTX_OP_WAIT_UINT_PRIVATE and UMTX_OP_WAKE_PRIVATE to save	2008-04-29 03:58:18 +00:00
thr_setprio.c
thr_setschedparam.c
thr_sig.c	Use UMTX_OP_WAIT_UINT_PRIVATE and UMTX_OP_WAKE_PRIVATE to save	2008-04-29 03:58:18 +00:00
thr_single_np.c
thr_spec.c	In _pthread_key_create() ensure that libthr is initialized. This	2007-11-06 21:50:43 +00:00
thr_spinlock.c	Avoid various shadowed variables. libthr is now almost WARNS=4 clean except	2008-04-23 21:06:51 +00:00
thr_stack.c
thr_suspend_np.c	Use UMTX_OP_WAIT_UINT_PRIVATE and UMTX_OP_WAKE_PRIVATE to save	2008-04-29 03:58:18 +00:00
thr_switch_np.c
thr_symbols.c
thr_syscalls.c	Call the fcntl compatiblity wrapper from the thread library fcntl wrappers	2008-05-30 14:47:42 +00:00
thr_umtx.c	Add two commands to _umtx_op system call to allow a simple mutex to be	2008-06-24 07:32:12 +00:00
thr_umtx.h	Add two commands to _umtx_op system call to allow a simple mutex to be	2008-06-24 07:32:12 +00:00
thr_yield.c