44 lines
980 B
Plaintext
44 lines
980 B
Plaintext
// RUN: %clang_tsan %s -o %t -framework Foundation
|
|
// RUN: %run %t 2>&1 | FileCheck %s
|
|
|
|
#import <Foundation/Foundation.h>
|
|
|
|
void notify_callback(void *context) {
|
|
// Do nothing.
|
|
}
|
|
|
|
int main() {
|
|
NSLog(@"Hello world.");
|
|
|
|
dispatch_queue_t q = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0);
|
|
|
|
for (int i = 0; i < 300000; i++) {
|
|
dispatch_group_t g = dispatch_group_create();
|
|
dispatch_group_enter(g);
|
|
dispatch_async(q, ^{
|
|
dispatch_group_leave(g);
|
|
});
|
|
dispatch_group_notify(g, q, ^{
|
|
// Do nothing.
|
|
});
|
|
dispatch_release(g);
|
|
}
|
|
|
|
for (int i = 0; i < 300000; i++) {
|
|
dispatch_group_t g = dispatch_group_create();
|
|
dispatch_group_enter(g);
|
|
dispatch_async(q, ^{
|
|
dispatch_group_leave(g);
|
|
});
|
|
dispatch_group_notify_f(g, q, NULL, ¬ify_callback);
|
|
dispatch_release(g);
|
|
}
|
|
|
|
NSLog(@"Done.");
|
|
}
|
|
|
|
// CHECK: Hello world.
|
|
// CHECK: Done.
|
|
// CHECK-NOT: WARNING: ThreadSanitizer
|
|
// CHECK-NOT: CHECK failed
|