| // RUN: %clangxx_tsan -O1 %s -o %t && %deflake %run %t | FileCheck %s |
| #include "test.h" |
| |
| int fds[2]; |
| |
| void *Thread1(void *x) { |
| write(fds[1], "a", 1); |
| barrier_wait(&barrier); |
| return NULL; |
| } |
| |
| void *Thread2(void *x) { |
| barrier_wait(&barrier); |
| close(fds[0]); |
| close(fds[1]); |
| return NULL; |
| } |
| |
| int main() { |
| barrier_init(&barrier, 2); |
| pipe(fds); |
| pthread_t t[2]; |
| pthread_create(&t[0], NULL, Thread1, NULL); |
| pthread_create(&t[1], NULL, Thread2, NULL); |
| pthread_join(t[0], NULL); |
| pthread_join(t[1], NULL); |
| } |
| |
| // CHECK: WARNING: ThreadSanitizer: data race |
| // CHECK: Write of size 8 |
| // CHECK: #0 close |
| // CHECK: #1 Thread2 |
| // CHECK: Previous read of size 8 |
| // CHECK: #0 write |
| // CHECK: #1 Thread1 |
| |
| |