compiler-rt/test/tsan/cond_version.c

   1 // RUN: %clang_tsan -O1 %s -o %t -lrt && %run %t 2>&1 | FileCheck %s
   2 // Test that pthread_cond is properly intercepted,
   3 // previously there were issues with versioned symbols.
   4 // CHECK: OK
   5
   6 // OS X doesn't have pthread_condattr_setclock.
   7 // UNSUPPORTED: darwin
   8
   9 #include <stdio.h>
  10 #include <stdlib.h>
  11 #include <pthread.h>
  12 #include <time.h>
  13 #include <errno.h>
  14
  15 int main() {
  16   typedef unsigned long long u64;
  17   pthread_mutex_t m;
  18   pthread_cond_t c;
  19   pthread_condattr_t at;
  20   struct timespec ts0, ts1, ts2;
  21   int res;
  22   u64 sleep;
  23
  24   pthread_mutex_init(&m, 0);
  25   pthread_condattr_init(&at);
  26   pthread_condattr_setclock(&at, CLOCK_MONOTONIC);
  27   pthread_cond_init(&c, &at);
  28
  29   clock_gettime(CLOCK_MONOTONIC, &ts0);
  30   ts1 = ts0;
  31   ts1.tv_sec += 2;
  32
  33   pthread_mutex_lock(&m);
  34   do {
  35     res = pthread_cond_timedwait(&c, &m, &ts1);
  36   } while (res == 0);
  37   pthread_mutex_unlock(&m);
  38
  39   clock_gettime(CLOCK_MONOTONIC, &ts2);
  40   sleep = (u64)ts2.tv_sec * 1000000000 + ts2.tv_nsec -
  41       ((u64)ts0.tv_sec * 1000000000 + ts0.tv_nsec);
  42   if (res != ETIMEDOUT)
  43     exit(printf("bad return value %d, want %d\n", res, ETIMEDOUT));
  44   if (sleep < 1000000000)
  45     exit(printf("bad sleep duration %lluns, want %dns\n", sleep, 1000000000));
  46   fprintf(stderr, "OK\n");
  47 }