1*7c3d14c8STreehugger Robot// RUN: %clang_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 Robotlong global; 7*7c3d14c8STreehugger Robot 8*7c3d14c8STreehugger Robotint main(int argc, const char *argv[]) { 9*7c3d14c8STreehugger Robot fprintf(stderr, "Hello world.\n"); 10*7c3d14c8STreehugger Robot 11*7c3d14c8STreehugger Robot dispatch_queue_t q = dispatch_queue_create("my.queue", DISPATCH_QUEUE_SERIAL); 12*7c3d14c8STreehugger Robot dispatch_semaphore_t sem = dispatch_semaphore_create(0); 13*7c3d14c8STreehugger Robot 14*7c3d14c8STreehugger Robot global = 44; 15*7c3d14c8STreehugger Robot dispatch_data_t data = dispatch_data_create("buffer", 6, q, ^{ 16*7c3d14c8STreehugger Robot fprintf(stderr, "Data destructor.\n"); 17*7c3d14c8STreehugger Robot global++; 18*7c3d14c8STreehugger Robot 19*7c3d14c8STreehugger Robot dispatch_semaphore_signal(sem); 20*7c3d14c8STreehugger Robot }); 21*7c3d14c8STreehugger Robot dispatch_release(data); 22*7c3d14c8STreehugger Robot data = nil; 23*7c3d14c8STreehugger Robot 24*7c3d14c8STreehugger Robot dispatch_semaphore_wait(sem, DISPATCH_TIME_FOREVER); 25*7c3d14c8STreehugger Robot 26*7c3d14c8STreehugger Robot data = dispatch_data_create("buffer", 6, q, DISPATCH_DATA_DESTRUCTOR_DEFAULT); 27*7c3d14c8STreehugger Robot dispatch_release(data); 28*7c3d14c8STreehugger Robot data = nil; 29*7c3d14c8STreehugger Robot 30*7c3d14c8STreehugger Robot fprintf(stderr, "Done.\n"); 31*7c3d14c8STreehugger Robot} 32*7c3d14c8STreehugger Robot 33*7c3d14c8STreehugger Robot// CHECK: Hello world. 34*7c3d14c8STreehugger Robot// CHECK: Data destructor. 35*7c3d14c8STreehugger Robot// CHECK-NOT: WARNING: ThreadSanitizer 36*7c3d14c8STreehugger Robot// CHECK: Done. 37