test/tsan/thread_name2.cc

   1 // RUN: %clangxx_tsan -O1 %s -o %t && not %run %t 2>&1 | FileCheck %s
   2 #include <pthread.h>
   3 #include <stdio.h>
   4 #include <unistd.h>
   5
   6 int Global;
   7
   8 void *Thread1(void *x) {
   9   sleep(1);
  10   Global++;
  11   return 0;
  12 }
  13
  14 void *Thread2(void *x) {
  15   pthread_setname_np(pthread_self(), "foobar2");
  16   Global--;
  17   return 0;
  18 }
  19
  20 int main() {
  21   pthread_t t[2];
  22   pthread_create(&t[0], 0, Thread1, 0);
  23   pthread_create(&t[1], 0, Thread2, 0);
  24   pthread_setname_np(t[0], "foobar1");
  25   pthread_join(t[0], NULL);
  26   pthread_join(t[1], NULL);
  27 }
  28
  29 // CHECK: WARNING: ThreadSanitizer: data race
  30 // CHECK:   Thread T1 'foobar1'
  31 // CHECK:   Thread T2 'foobar2'
  32