compiler-rt/test/tsan/libdispatch/dispatch_main.c

   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
   5 // RUN: %run %t 2>&1 | FileCheck %s --implicit-check-not='ThreadSanitizer'
   6
   7 #include <dispatch/dispatch.h>
   8
   9 #include <stdio.h>
  10 #include <stdlib.h>
  11
  12 int main() {
  13   fprintf(stderr,"Hello world");
  14
  15   dispatch_queue_t q = dispatch_queue_create("my.queue", DISPATCH_QUEUE_SERIAL);
  16
  17   dispatch_async(q, ^{
  18     fprintf(stderr,"1");
  19   });
  20
  21   dispatch_async(q, ^{
  22     fprintf(stderr,"2");
  23   });
  24
  25   dispatch_async(q, ^{
  26     fprintf(stderr,"3");
  27
  28     dispatch_async(dispatch_get_main_queue(), ^{
  29       fprintf(stderr,"Done.");
  30       sleep(1);
  31       exit(0);
  32     });
  33   });
  34
  35   dispatch_main();
  36 }
  37
  38 // CHECK: Hello world
  39 // CHECK: 123
  40 // CHECK: Done.