src/compiler-rt/test/tsan/Darwin/dispatch_main.mm

   1 // Check that we don't crash when dispatch_main calls pthread_exit which
   2 // quits the main thread.
   3
   4 // RUN: %clang_tsan %s -o %t -framework Foundation
   5 // RUN: %env_tsan_opts=ignore_interceptors_accesses=1 %run %t 2>&1 | FileCheck %s
   6
   7 #import <Foundation/Foundation.h>
   8
   9 int main() {
  10   fprintf(stderr,"Hello world");
  11
  12   dispatch_queue_t q = dispatch_queue_create("my.queue", DISPATCH_QUEUE_SERIAL);
  13
  14   dispatch_async(q, ^{
  15     fprintf(stderr,"1");
  16   });
  17
  18   dispatch_async(q, ^{
  19     fprintf(stderr,"2");
  20   });
  21
  22   dispatch_async(q, ^{
  23     fprintf(stderr,"3");
  24
  25     dispatch_async(dispatch_get_main_queue(), ^{
  26       fprintf(stderr,"Done.");
  27       sleep(1);
  28       exit(0);
  29     });
  30   });
  31
  32   dispatch_main();
  33 }
  34
  35 // CHECK: Hello world
  36 // CHECK: Done.
  37 // CHECK-NOT: WARNING: ThreadSanitizer
  38 // CHECK-NOT: CHECK failed