// RUN: %clang_tsan %s -o %t
// RUN: %run %t 2>&1 | FileCheck %s

#include "dispatch/dispatch.h"

#include <stdio.h>

long my_global;
long my_global2;
dispatch_semaphore_t done;

void callback(void *context) {
  my_global2 = 42;

  dispatch_semaphore_signal(done);
}

int main(int argc, const char *argv[]) {
  fprintf(stderr, "start\n");
  done = dispatch_semaphore_create(0);

  dispatch_queue_t q = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0);

  my_global = 10;
  dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(10 * NSEC_PER_MSEC)), q, ^{
    my_global = 42;

    dispatch_semaphore_signal(done);
  });
  dispatch_semaphore_wait(done, DISPATCH_TIME_FOREVER);

  my_global2 = 10;
  dispatch_after_f(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(10 * NSEC_PER_MSEC)), q, NULL, &callback);

  dispatch_semaphore_wait(done, DISPATCH_TIME_FOREVER);
  fprintf(stderr, "done\n");
  return 0;
}

// CHECK: start
// CHECK: done
// CHECK-NOT: WARNING: ThreadSanitizer

// RUN: %clang_tsan %s -o %t
// RUN: %run %t 2>&1 | FileCheck %s

#include "dispatch/dispatch.h"

#include <stdio.h>

long my_global;
long my_global2;
dispatch_semaphore_t done;

void callback(void *context) {
  my_global2 = 42;

  dispatch_semaphore_signal(done);
}

int main(int argc, const char *argv[]) {
  fprintf(stderr, "start\n");
  done = dispatch_semaphore_create(0);

  dispatch_queue_t q = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0);

  my_global = 10;
  dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(10 * NSEC_PER_MSEC)), q, ^{
    my_global = 42;

    dispatch_semaphore_signal(done);
  });

  my_global2 = 10;
  dispatch_after_f(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(10 * NSEC_PER_MSEC)), q, NULL, &callback);

  dispatch_semaphore_wait(done, DISPATCH_TIME_FOREVER);
  dispatch_semaphore_wait(done, DISPATCH_TIME_FOREVER);
  fprintf(stderr, "done\n");
  return 0;
}

// CHECK: start
// CHECK: done
// CHECK-NOT: WARNING: ThreadSanitizer

Change test to have two simultaneous timers
[TSan][libdispatch] Change test to have two simultaneous timers

Change test semantics by waiting for both timer callbacks at the end
instead of serializing operations: start/wait timer 1 then 2.

Reviewed By: kubamracek

Differential Revision: https://reviews.llvm.org/D60476

git-svn-id: c199f293c43da69278bea8e88f92242bf3aa95f7@358204 91177308-0d34-0410-b5e6-96231b3b80d8
