forked from OSchip/llvm-project
27 lines
570 B
C
27 lines
570 B
C
// RUN: %clang_tsan %s -o %t
|
|
// RUN: %run %t 2>&1 | FileCheck %s --implicit-check-not='ThreadSanitizer'
|
|
|
|
#include "dispatch/dispatch.h"
|
|
|
|
#include <stdio.h>
|
|
|
|
long global;
|
|
|
|
int main() {
|
|
fprintf(stderr, "Hello world.\n");
|
|
dispatch_semaphore_t done = dispatch_semaphore_create(0);
|
|
|
|
global = 42;
|
|
dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
|
|
global = 43;
|
|
|
|
dispatch_semaphore_signal(done);
|
|
});
|
|
|
|
dispatch_semaphore_wait(done, DISPATCH_TIME_FOREVER);
|
|
fprintf(stderr, "Done.\n");
|
|
}
|
|
|
|
// CHECK: Hello world.
|
|
// CHECK: Done.
|