src/compiler-rt/test/tsan/Darwin/libcxx-shared-ptr.mm

   1 // RUN: %clangxx_tsan %s -o %t -framework Foundation
   2 // RUN: %env_tsan_opts=ignore_interceptors_accesses=1 %run %t 2>&1 | FileCheck %s
   3
   4 #import <Foundation/Foundation.h>
   5
   6 #import <memory>
   7
   8 #import "../test.h"
   9
  10 long my_global;
  11
  12 struct MyStruct {
  13   void setGlobal() {
  14     my_global = 42;
  15   }
  16   ~MyStruct() {
  17     my_global = 43;
  18   }
  19 };
  20
  21 int main(int argc, const char *argv[]) {
  22   fprintf(stderr, "Hello world.\n");
  23   print_address("addr=", 1, &my_global);
  24   barrier_init(&barrier, 2);
  25
  26   std::shared_ptr<MyStruct> shared(new MyStruct());
  27
  28   dispatch_queue_t q = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0);
  29
  30   std::weak_ptr<MyStruct> weak(shared);
  31
  32   dispatch_async(q, ^{
  33     {
  34       std::shared_ptr<MyStruct> strong = weak.lock();
  35       if (!strong) exit(1);
  36
  37       strong->setGlobal();
  38     }
  39     barrier_wait(&barrier);
  40   });
  41
  42   barrier_wait(&barrier);
  43   shared.reset();
  44
  45   fprintf(stderr, "Done.\n");
  46 }
  47
  48 // CHECK: Hello world.
  49 // CHECK: Done.
  50 // CHECK-NOT: WARNING: ThreadSanitizer