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      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 }
     48