| // RUN: %clang_tsan -O1 %s -o %t && %deflake %run %t | FileCheck %s |
| |
| // pthread barriers are not available on OS X |
| // UNSUPPORTED: darwin |
| |
| #include "test.h" |
| |
| pthread_barrier_t B; |
| int Global; |
| |
| void *Thread1(void *x) { |
| pthread_barrier_init(&B, 0, 2); |
| barrier_wait(&barrier); |
| pthread_barrier_wait(&B); |
| return NULL; |
| } |
| |
| void *Thread2(void *x) { |
| barrier_wait(&barrier); |
| pthread_barrier_wait(&B); |
| return NULL; |
| } |
| |
| int main() { |
| barrier_init(&barrier, 2); |
| pthread_t t; |
| pthread_create(&t, NULL, Thread1, NULL); |
| Thread2(0); |
| pthread_join(t, NULL); |
| pthread_barrier_destroy(&B); |
| return 0; |
| } |
| |
| // CHECK: WARNING: ThreadSanitizer: data race |