forked from OSchip/llvm-project
39 lines
843 B
Plaintext
39 lines
843 B
Plaintext
// RUN: %clang_tsan %s -o %t -framework Foundation
|
|
// RUN: %run %t 2>&1 | FileCheck %s
|
|
|
|
#import <Foundation/Foundation.h>
|
|
|
|
long global;
|
|
|
|
void handler(void *arg) {
|
|
fprintf(stderr, "global = %ld\n", global);
|
|
|
|
dispatch_sync(dispatch_get_main_queue(), ^{
|
|
CFRunLoopStop(CFRunLoopGetCurrent());
|
|
});
|
|
}
|
|
|
|
int main(int argc, const char *argv[]) {
|
|
dispatch_queue_t queue =
|
|
dispatch_queue_create("my.queue", DISPATCH_QUEUE_CONCURRENT);
|
|
|
|
dispatch_source_t source =
|
|
dispatch_source_create(DISPATCH_SOURCE_TYPE_TIMER, 0, 0, queue);
|
|
|
|
dispatch_source_set_timer(source, dispatch_walltime(NULL, 0), 1e9, 5);
|
|
|
|
global = 42;
|
|
|
|
dispatch_source_set_cancel_handler_f(source, &handler);
|
|
|
|
dispatch_resume(source);
|
|
dispatch_cancel(source);
|
|
|
|
CFRunLoopRun();
|
|
|
|
return 0;
|
|
}
|
|
|
|
// CHECK: global = 42
|
|
// CHECK-NOT: WARNING: ThreadSanitizer
|