thread_name2.cc revision 6d1862363c88c183b0ed7740fca876342cf0474b 
1// RUN: %clangxx_tsan -O1 %s -o %t && %deflake %run %t | FileCheck %s
2#include <pthread.h>
3#include <stdio.h>
4#include <unistd.h>
5
6#if defined(__FreeBSD__)
7#include <pthread_np.h>
8#define pthread_setname_np pthread_set_name_np
9#endif
10
11int Global;
12
13void *Thread1(void *x) {
14  sleep(1);
15  Global++;
16  return 0;
17}
18
19void *Thread2(void *x) {
20  pthread_setname_np(pthread_self(), "foobar2");
21  Global--;
22  return 0;
23}
24
25int main() {
26  pthread_t t[2];
27  pthread_create(&t[0], 0, Thread1, 0);
28  pthread_create(&t[1], 0, Thread2, 0);
29  pthread_setname_np(t[0], "foobar1");
30  pthread_join(t[0], NULL);
31  pthread_join(t[1], NULL);
32}
33
34// CHECK: WARNING: ThreadSanitizer: data race
35// CHECK:   Thread T1 'foobar1'
36// CHECK:   Thread T2 'foobar2'
37