1 // Check that we don't crash when dispatch_main calls pthread_exit which
2 // quits the main thread.
3
4 // RUN: %clang_tsan %s -o %t
5 // RUN: %run %t 2>&1 | FileCheck %s --implicit-check-not='ThreadSanitizer'
6
7 #include <dispatch/dispatch.h>
8
9 #include <stdio.h>
10 #include <stdlib.h>
11
main()12 int main() {
13 fprintf(stderr,"Hello world");
14
15 dispatch_queue_t q = dispatch_queue_create("my.queue", DISPATCH_QUEUE_SERIAL);
16
17 dispatch_async(q, ^{
18 fprintf(stderr,"1");
19 });
20
21 dispatch_async(q, ^{
22 fprintf(stderr,"2");
23 });
24
25 dispatch_async(q, ^{
26 fprintf(stderr,"3");
27
28 dispatch_async(dispatch_get_main_queue(), ^{
29 fprintf(stderr,"Done.");
30 sleep(1);
31 exit(0);
32 });
33 });
34
35 dispatch_main();
36 }
37
38 // CHECK: Hello world
39 // CHECK: 123
40 // CHECK: Done.
41