base/synchronization/cancellation_flag.cc

   1 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "base/synchronization/cancellation_flag.h"
   6
   7 #include "base/logging.h"
   8
   9 namespace base {
  10
  11 void CancellationFlag::Set() {
  12 #if !defined(NDEBUG)
  13   DCHECK_EQ(set_on_, PlatformThread::CurrentId());
  14 #endif
  15   base::subtle::Release_Store(&flag_, 1);
  16 }
  17
  18 bool CancellationFlag::IsSet() const {
  19   return base::subtle::Acquire_Load(&flag_) != 0;
  20 }
  21
  22 void CancellationFlag::UnsafeResetForTesting() {
  23   base::subtle::Release_Store(&flag_, 0);
  24 }
  25
  26 }  // namespace base