1*7c3d14c8STreehugger Robot// RUN: %clangxx_tsan %s -o %t -framework Foundation 2*7c3d14c8STreehugger Robot// RUN: %env_tsan_opts=ignore_interceptors_accesses=1 %run %t 2>&1 | FileCheck %s 3*7c3d14c8STreehugger Robot 4*7c3d14c8STreehugger Robot#import <Foundation/Foundation.h> 5*7c3d14c8STreehugger Robot 6*7c3d14c8STreehugger Robot#import <memory> 7*7c3d14c8STreehugger Robot#import <stdatomic.h> 8*7c3d14c8STreehugger Robot 9*7c3d14c8STreehugger Robot_Atomic(long) destructor_counter = 0; 10*7c3d14c8STreehugger Robot 11*7c3d14c8STreehugger Robotstruct MyStruct { 12*7c3d14c8STreehugger Robot virtual ~MyStruct() { 13*7c3d14c8STreehugger Robot usleep(10000); 14*7c3d14c8STreehugger Robot atomic_fetch_add_explicit(&destructor_counter, 1, memory_order_relaxed); 15*7c3d14c8STreehugger Robot } 16*7c3d14c8STreehugger Robot}; 17*7c3d14c8STreehugger Robot 18*7c3d14c8STreehugger Robotint main(int argc, const char *argv[]) { 19*7c3d14c8STreehugger Robot fprintf(stderr, "Hello world.\n"); 20*7c3d14c8STreehugger Robot 21*7c3d14c8STreehugger Robot dispatch_queue_t q = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0); 22*7c3d14c8STreehugger Robot dispatch_group_t g = dispatch_group_create(); 23*7c3d14c8STreehugger Robot 24*7c3d14c8STreehugger Robot for (int i = 0; i < 100; i++) { 25*7c3d14c8STreehugger Robot std::shared_ptr<MyStruct> shared(new MyStruct()); 26*7c3d14c8STreehugger Robot 27*7c3d14c8STreehugger Robot dispatch_group_async(g, q, ^{ 28*7c3d14c8STreehugger Robot shared.get(); // just to make sure the object is captured by the block 29*7c3d14c8STreehugger Robot }); 30*7c3d14c8STreehugger Robot } 31*7c3d14c8STreehugger Robot 32*7c3d14c8STreehugger Robot dispatch_group_wait(g, DISPATCH_TIME_FOREVER); 33*7c3d14c8STreehugger Robot 34*7c3d14c8STreehugger Robot if (destructor_counter != 100) { 35*7c3d14c8STreehugger Robot abort(); 36*7c3d14c8STreehugger Robot } 37*7c3d14c8STreehugger Robot 38*7c3d14c8STreehugger Robot fprintf(stderr, "Done.\n"); 39*7c3d14c8STreehugger Robot} 40*7c3d14c8STreehugger Robot 41*7c3d14c8STreehugger Robot// CHECK: Hello world. 42*7c3d14c8STreehugger Robot// CHECK-NOT: WARNING: ThreadSanitizer 43*7c3d14c8STreehugger Robot// CHECK: Done. 44