src/compiler-rt/test/tsan/Darwin/gcd-source-registration2.mm

   1 // RUN: %clang_tsan %s -o %t -framework Foundation
   2 // RUN: %env_tsan_opts=ignore_interceptors_accesses=1 %run %t 2>&1 | FileCheck %s
   3
   4 #import <Foundation/Foundation.h>
   5
   6 long global;
   7
   8 void handler(void *arg) {
   9   fprintf(stderr, "global = %ld\n", global);
  10
  11   dispatch_sync(dispatch_get_main_queue(), ^{
  12     CFRunLoopStop(CFRunLoopGetCurrent());
  13   });
  14 }
  15
  16 int main(int argc, const char *argv[]) {
  17   dispatch_queue_t queue =
  18       dispatch_queue_create("my.queue", DISPATCH_QUEUE_CONCURRENT);
  19
  20   dispatch_source_t source =
  21       dispatch_source_create(DISPATCH_SOURCE_TYPE_SIGNAL, SIGHUP, 0, queue);
  22
  23   global = 42;
  24
  25   dispatch_source_set_registration_handler_f(source, handler);
  26
  27   dispatch_resume(source);
  28
  29   CFRunLoopRun();
  30
  31   return 0;
  32 }
  33
  34 // CHECK: global = 42
  35 // CHECK-NOT: WARNING: ThreadSanitizer