musl/src/thread/pthread_cond_init.c

#include "pthread_impl.h"

int pthread_cond_init(pthread_cond_t *c, const pthread_condattr_t *a)
{
	memset(c, 0, sizeof *c);
	if (a) {
		c->_c_clock = *a & 0x7fffffff;
		if (*a>>31) c->_c_mutex = (void *)-1;
	}
	return 0;
}
initial check-in, version 0.5.0 2011-02-12 00:22:29 -05:00			`#include "pthread_impl.h"`

			`int pthread_cond_init(pthread_cond_t c, const pthread_condattr_t a)`
			`{`
			`memset(c, 0, sizeof *c);`
new futex-requeue-based pthread_cond_broadcast implementation this avoids the "stampede effect" where pthread_cond_broadcast would result in all waiters waking up simultaneously, only to immediately contend for the mutex and go back to sleep. 2011-09-25 02:38:03 -04:00			`if (a) {`
			`c->_c_clock = *a & 0x7fffffff;`
			`if (a>>31) c->_c_mutex = (void )-1;`
			`}`
initial check-in, version 0.5.0 2011-02-12 00:22:29 -05:00			`return 0;`
			`}`