test/tsan/bench_ten_mutexes.cc

   1 // RUN: %clangxx_tsan %s -o %t
   2 // RUN: %run %t 2>&1 | FileCheck %s
   3
   4 #include "bench.h"
   5
   6 const int kMutex = 10;
   7 pthread_mutex_t mtx[kMutex];
   8
   9 void thread(int tid) {
  10   for (int i = 0; i < bench_niter; i++) {
  11     int idx = (i % kMutex);
  12     if (tid == 0)
  13       idx = kMutex - idx - 1;
  14     pthread_mutex_lock(&mtx[idx]);
  15     pthread_mutex_unlock(&mtx[idx]);
  16   }
  17 }
  18
  19 void bench() {
  20   for (int i = 0; i < kMutex; i++)
  21     pthread_mutex_init(&mtx[i], 0);
  22   start_thread_group(2, thread);
  23 }
  24
  25 // CHECK: DONE
  26