blob: 49adb62312309c104578ef438b2bcf5e6066bd9a [file] [log] [blame]
// 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