| // RUN: %clang_tsan %s -o %t |
| // RUN: %run %t 2>&1 | FileCheck %s --implicit-check-not='ThreadSanitizer' |
| |
| #include <dispatch/dispatch.h> |
| |
| #include <stdio.h> |
| #include <string.h> |
| |
| long global = 42; |
| |
| int main(int argc, const char *argv[]) { |
| fprintf(stderr, "Hello world.\n"); |
| |
| dispatch_queue_t q = dispatch_queue_create("my.queue", DISPATCH_QUEUE_SERIAL); |
| dispatch_semaphore_t sem = dispatch_semaphore_create(0); |
| |
| const char *buffer = "buffer"; |
| size_t size = strlen(buffer); |
| |
| dispatch_data_t data = dispatch_data_create(buffer, size, q, ^{ |
| fprintf(stderr, "Data destructor.\n"); |
| global++; |
| |
| dispatch_semaphore_signal(sem); |
| }); |
| dispatch_release(data); |
| |
| dispatch_semaphore_wait(sem, DISPATCH_TIME_FOREVER); |
| |
| data = dispatch_data_create(buffer, size, q, DISPATCH_DATA_DESTRUCTOR_DEFAULT); |
| dispatch_release(data); |
| |
| fprintf(stderr, "Done.\n"); |
| } |
| |
| // CHECK: Hello world. |
| // CHECK: Data destructor. |
| // CHECK: Done. |