| 1 | // RUN: %clang_tsan %s -o %t |
|---|
| 2 | // RUN: %run %t 2>&1 | FileCheck %s --implicit-check-not='ThreadSanitizer' |
|---|
| 3 | |
|---|
| 4 | #include "dispatch/dispatch.h" |
|---|
| 5 | |
|---|
| 6 | #include <stdio.h> |
|---|
| 7 | |
|---|
| 8 | long global; |
|---|
| 9 | |
|---|
| 10 | int main() { |
|---|
| 11 | fprintf(stderr, format: "Hello world.\n" ); |
|---|
| 12 | dispatch_semaphore_t done = dispatch_semaphore_create(0); |
|---|
| 13 | |
|---|
| 14 | global = 42; |
|---|
| 15 | dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{ |
|---|
| 16 | global = 43; |
|---|
| 17 | |
|---|
| 18 | dispatch_semaphore_signal(done); |
|---|
| 19 | }); |
|---|
| 20 | |
|---|
| 21 | dispatch_semaphore_wait(done, DISPATCH_TIME_FOREVER); |
|---|
| 22 | fprintf(stderr, format: "Done.\n" ); |
|---|
| 23 | } |
|---|
| 24 | |
|---|
| 25 | // CHECK: Hello world. |
|---|
| 26 | // CHECK: Done. |
|---|
| 27 | |
|---|
