src/thread/pthread_mutex_lock.c

   1 #include "pthread_impl.h"
   2
   3 int pthread_mutex_lock(pthread_mutex_t *m)
   4 {
   5         int r;
   6         while ((r=pthread_mutex_trylock(m)) == EBUSY)
   7                 __wait(&m->__lock, &m->__waiters, 1, 0);
   8         return r;
   9 }