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

   1 // RUN: %clang_tsan %s -o %t
   2 // RUN: %run %t 2>&1 | FileCheck %s --implicit-check-not='ThreadSanitizer'
   3
   4 #include "dispatch/dispatch.h"
   5
   6 #include <stdio.h>
   7
   8 long my_global;
   9 long my_global2;
  10 dispatch_semaphore_t done;
  11
  12 void callback(void *context) {
  13   my_global2 = 42;
  14
  15   dispatch_semaphore_signal(done);
  16 }
  17
  18 int main(int argc, const char *argv[]) {
  19   fprintf(stderr, "start\n");
  20   done = dispatch_semaphore_create(0);
  21
  22   dispatch_queue_t q = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0);
  23
  24   my_global = 10;
  25   dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(10 * NSEC_PER_MSEC)), q, ^{
  26     my_global = 42;
  27
  28     dispatch_semaphore_signal(done);
  29   });
  30
  31   my_global2 = 10;
  32   dispatch_after_f(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(10 * NSEC_PER_MSEC)), q, NULL, &callback);
  33
  34   dispatch_semaphore_wait(done, DISPATCH_TIME_FOREVER);
  35   dispatch_semaphore_wait(done, DISPATCH_TIME_FOREVER);
  36   fprintf(stderr, "done\n");
  37   return 0;
  38 }
  39
  40 // CHECK: start
  41 // CHECK: done