#include "pthread_impl.h" void __vm_lock(int), __vm_unlock(void); int pthread_barrier_destroy(pthread_barrier_t *b) { if (b->_b_limit < 0) { int seq = b->_b_seq; if (seq & 1) __wait(&b->_b_seq, 0, seq, 0); __vm_lock(-1); __vm_unlock(); } return 0; }