38 lines · c
1// RUN: %clang_tsan %s -o %t2// RUN: %run %t 2>&1 | FileCheck %s --implicit-check-not='ThreadSanitizer'3 4#include "dispatch/dispatch.h"5 6#include <stdio.h>7 8long global;9dispatch_semaphore_t done;10 11void handler(void *arg) {12 fprintf(stderr, "global = %ld\n", global);13 14 dispatch_semaphore_signal(done);15}16 17int main(int argc, const char *argv[]) {18 done = dispatch_semaphore_create(0);19 20 dispatch_queue_t queue =21 dispatch_queue_create("my.queue", DISPATCH_QUEUE_CONCURRENT);22 23 dispatch_source_t source =24 dispatch_source_create(DISPATCH_SOURCE_TYPE_SIGNAL, SIGHUP, 0, queue);25 26 global = 42;27 28 dispatch_source_set_registration_handler_f(source, handler);29 30 dispatch_resume(source);31 32 dispatch_semaphore_wait(done, DISPATCH_TIME_FOREVER);33 34 return 0;35}36 37// CHECK: global = 4238