musl/src/thread/pthread_cond_broadcast.c

#include "pthread_impl.h"

int pthread_cond_broadcast(pthread_cond_t *c)
{
	int w = c->_c_waiters;
	if (a_swap(&c->_c_block, 0) || w)
		__wake(&c->_c_block, -1, 0);
	return 0;
}
initial check-in, version 0.5.0 2011-02-12 00:22:29 -05:00			`#include "pthread_impl.h"`

			`int pthread_cond_broadcast(pthread_cond_t *c)`
			`{`
fix deadlock in condition wait whenever there are multiple waiters it's amazing none of the conformance tests i've run even bothered to check whether something so basic works... 2011-09-22 21:08:55 -04:00			`int w = c->_c_waiters;`
			`if (a_swap(&c->_c_block, 0) \|\| w)`
condition variable signal/bcast need not wake unless there are waiters 2011-08-07 18:31:06 -04:00			`__wake(&c->_c_block, -1, 0);`
initial check-in, version 0.5.0 2011-02-12 00:22:29 -05:00			`return 0;`
			`}`