musl/src/thread/pthread_mutex_timedlock.c

#include "pthread_impl.h"

int pthread_mutex_timedlock(pthread_mutex_t *m, const struct timespec *at)
{
	int r, w=0;
	while ((r=pthread_mutex_trylock(m)) == EBUSY) {
		if (!w) a_inc(&m->_m_waiters), w++;
		if (__timedwait(&m->_m_lock, 1, CLOCK_REALTIME, at, 0) == ETIMEDOUT) {
			if (w) a_dec(&m->_m_waiters);
			return ETIMEDOUT;
		}
	}
	if (w) a_dec(&m->_m_waiters);
	return r;
}
initial check-in, version 0.5.0 2011-02-12 00:22:29 -05:00			`#include "pthread_impl.h"`

			`int pthread_mutex_timedlock(pthread_mutex_t m, const struct timespec at)`
			`{`
			`int r, w=0;`
			`while ((r=pthread_mutex_trylock(m)) == EBUSY) {`
reorganize pthread data structures and move the definitions to alltypes.h this allows sys/types.h to provide the pthread types, as required by POSIX. this design also facilitates forcing ABI-compatible sizes in the arch-specific alltypes.h, while eliminating the need for developers changing the internals of the pthread types to poke around with arch-specific headers they may not be able to test. 2011-02-17 17:16:20 -05:00			`if (!w) a_inc(&m->_m_waiters), w++;`
			`if (__timedwait(&m->_m_lock, 1, CLOCK_REALTIME, at, 0) == ETIMEDOUT) {`
			`if (w) a_dec(&m->_m_waiters);`
initial check-in, version 0.5.0 2011-02-12 00:22:29 -05:00			`return ETIMEDOUT;`
			`}`
			`}`
reorganize pthread data structures and move the definitions to alltypes.h this allows sys/types.h to provide the pthread types, as required by POSIX. this design also facilitates forcing ABI-compatible sizes in the arch-specific alltypes.h, while eliminating the need for developers changing the internals of the pthread types to poke around with arch-specific headers they may not be able to test. 2011-02-17 17:16:20 -05:00			`if (w) a_dec(&m->_m_waiters);`
initial check-in, version 0.5.0 2011-02-12 00:22:29 -05:00			`return r;`
			`}`