sys_cond_wait      99 src/systhread.h extern void sys_cond_wait (sys_cond_t *, sys_mutex_t *);
sys_cond_wait     222 src/thread.c       sys_cond_wait (&mutex->condition, &global_lock);
sys_cond_wait     450 src/thread.c         sys_cond_wait (&cvar->cond, &global_lock);
sys_cond_wait    1023 src/thread.c       sys_cond_wait (self->wait_condvar, &global_lock);