Pirama Arumuga Nainar | 799172d | 2016-03-03 15:50:30 -0800 | [diff] [blame^] | 1 | // RUN: %clang_tsan %s -o %t -framework Foundation |
| 2 | // RUN: %deflake %run %t 2>&1 |
| 3 | |
| 4 | #import <Foundation/Foundation.h> |
| 5 | |
| 6 | #import "../test.h" |
| 7 | |
| 8 | @interface MyClass : NSObject { |
| 9 | long instance_variable; |
| 10 | } |
| 11 | - (void)method:(long)value; |
| 12 | @end |
| 13 | |
| 14 | @implementation MyClass |
| 15 | |
| 16 | - (void)method:(long)value { |
| 17 | self->instance_variable = value; |
| 18 | } |
| 19 | |
| 20 | @end |
| 21 | |
| 22 | int main() { |
| 23 | NSLog(@"Hello world."); |
| 24 | barrier_init(&barrier, 2); |
| 25 | |
| 26 | MyClass *my_object = [MyClass new]; |
| 27 | [my_object method:42]; |
| 28 | |
| 29 | dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{ |
| 30 | [my_object method:43]; |
| 31 | barrier_wait(&barrier); |
| 32 | }); |
| 33 | |
| 34 | dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{ |
| 35 | barrier_wait(&barrier); |
| 36 | [my_object method:44]; |
| 37 | |
| 38 | dispatch_sync(dispatch_get_main_queue(), ^{ |
| 39 | CFRunLoopStop(CFRunLoopGetCurrent()); |
| 40 | }); |
| 41 | }); |
| 42 | |
| 43 | CFRunLoopRun(); |
| 44 | NSLog(@"Done."); |
| 45 | return 0; |
| 46 | } |
| 47 | |
| 48 | // CHECK: Hello world. |
| 49 | // CHECK: WARNING: ThreadSanitizer: data race |
| 50 | // CHECK: Write of size 8 |
| 51 | // CHECK: #0 -[MyClass method:] |
| 52 | // CHECK: Write of size 8 |
| 53 | // CHECK: #0 -[MyClass method:] |
| 54 | // CHECK: Location is heap block |
| 55 | // CHECK: Done. |