compiler-rt/test/tsan/Linux/clockwait_double_lock.c

   1 // Regression test for https://github.com/google/sanitizers/issues/1259
   2 // RUN: %clang_tsan -O1 %s -o %t && %run %t
   3 // REQUIRES: glibc-2.30 || android-30
   4
   5 #define _GNU_SOURCE
   6 #include <pthread.h>
   7
   8 pthread_cond_t cv;
   9 pthread_mutex_t mtx;
  10
  11 void *fn(void *vp) {
  12   pthread_mutex_lock(&mtx);
  13   pthread_cond_signal(&cv);
  14   pthread_mutex_unlock(&mtx);
  15   return NULL;
  16 }
  17
  18 int main() {
  19   pthread_mutex_lock(&mtx);
  20
  21   pthread_t tid;
  22   pthread_create(&tid, NULL, fn, NULL);
  23
  24   struct timespec ts;
  25   clock_gettime(CLOCK_MONOTONIC, &ts);
  26   ts.tv_sec += 10;
  27   pthread_cond_clockwait(&cv, &mtx, CLOCK_MONOTONIC, &ts);
  28   pthread_mutex_unlock(&mtx);
  29
  30   pthread_join(tid, NULL);
  31   return 0;
  32 }