pthread_cond_signal.c\thread\src - musl - musl - an implementation of the standard library for Linux-based systems

#include "pthread_impl.h"
int pthread_cond_signal(pthread_cond_t *c)
{
	if (!c->_c_shared) return __private_cond_signal(c, 1);
	if (!c->_c_waiters) return 0;
	a_inc(&c->_c_seq);
	__wake(&c->_c_seq, 1, 0);
	return 0;
}