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