compiler-rt/test/BlocksRuntime/rdar6405500.c

   1 //
   2 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   3 // See https://llvm.org/LICENSE.txt for license information.
   4 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   5
   6 // CONFIG rdar://6405500
   7
   8 #include <stdio.h>
   9 #include <stdlib.h>
  10 #import <dispatch/dispatch.h>
  11 #import <objc/objc-auto.h>
  12
  13 int main (int argc, const char * argv[]) {
  14     __block void (^blockFu)(size_t t);
  15     blockFu = ^(size_t t){
  16         if (t == 20) {
  17             printf("%s: success\n", argv[0]);
  18             exit(0);
  19         } else
  20             dispatch_async(dispatch_get_main_queue(), ^{ blockFu(20); });
  21     };
  22
  23     dispatch_apply(10, dispatch_get_concurrent_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT), blockFu);
  24
  25     dispatch_main();
  26     printf("shouldn't get here\n");
  27     return 1;
  28 }