1*bcaeed49SFangrui Song // RUN: %clangxx_tsan -O1 %s -o %t && %deflake %run %t | FileCheck %s
2*bcaeed49SFangrui Song #include "test.h"
3*bcaeed49SFangrui Song
4*bcaeed49SFangrui Song int fds[2];
5*bcaeed49SFangrui Song
Thread1(void * x)6*bcaeed49SFangrui Song void *Thread1(void *x) {
7*bcaeed49SFangrui Song write(fds[1], "a", 1);
8*bcaeed49SFangrui Song barrier_wait(&barrier);
9*bcaeed49SFangrui Song return NULL;
10*bcaeed49SFangrui Song }
11*bcaeed49SFangrui Song
Thread2(void * x)12*bcaeed49SFangrui Song void *Thread2(void *x) {
13*bcaeed49SFangrui Song barrier_wait(&barrier);
14*bcaeed49SFangrui Song close(fds[0]);
15*bcaeed49SFangrui Song close(fds[1]);
16*bcaeed49SFangrui Song return NULL;
17*bcaeed49SFangrui Song }
18*bcaeed49SFangrui Song
main()19*bcaeed49SFangrui Song int main() {
20*bcaeed49SFangrui Song barrier_init(&barrier, 2);
21*bcaeed49SFangrui Song pipe(fds);
22*bcaeed49SFangrui Song pthread_t t[2];
23*bcaeed49SFangrui Song pthread_create(&t[0], NULL, Thread1, NULL);
24*bcaeed49SFangrui Song pthread_create(&t[1], NULL, Thread2, NULL);
25*bcaeed49SFangrui Song pthread_join(t[0], NULL);
26*bcaeed49SFangrui Song pthread_join(t[1], NULL);
27*bcaeed49SFangrui Song }
28*bcaeed49SFangrui Song
29*bcaeed49SFangrui Song // CHECK: WARNING: ThreadSanitizer: data race
30*bcaeed49SFangrui Song // CHECK: Location is file descriptor {{[0-9]+}} created by main thread at:
31*bcaeed49SFangrui Song // CHECK: #0 pipe
32*bcaeed49SFangrui Song // CHECK: #1 main
33*bcaeed49SFangrui Song
34