#include "pthread_impl.h" #include int pthread_cond_init(pthread_cond_t *restrict c, const pthread_condattr_t *restrict a) { return 0; } int pthread_cond_destroy(pthread_cond_t *c) { return 0; } int pthread_cond_broadcast(pthread_cond_t *c) { return 0; } int pthread_cond_signal(pthread_cond_t *c) { return 0; } int pthread_cond_wait(pthread_cond_t *restrict c, pthread_mutex_t *restrict m) { /* Because there is no other thread that can signal us, this is a deadlock immediately. The other possible choice is to return immediately (spurious wakeup), but that is likely to just result in the program spinning forever on a condition that cannot become true. */ __builtin_trap(); } int __pthread_cond_timedwait(pthread_cond_t *restrict c, pthread_mutex_t *restrict m, const struct timespec *restrict ts) { /* Error check mutexes must detect if they're not locked (UB for others) */ if (!m->_m_count) return EPERM; int ret = clock_nanosleep(CLOCK_REALTIME, TIMER_ABSTIME, ts, 0); if (ret == 0) return ETIMEDOUT; if (ret != EINTR) return ret; return 0; } weak_alias(__pthread_cond_timedwait, pthread_cond_timedwait);