cc/resources/single_release_callback.cc

   1 // Copyright 2013 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 "cc/resources/single_release_callback.h"
   6
   7 #include "base/callback_helpers.h"
   8 #include "base/logging.h"
   9
  10 namespace cc {
  11
  12 SingleReleaseCallback::SingleReleaseCallback(const ReleaseCallback& callback)
  13     : callback_(callback) {
  14   DCHECK(!callback_.is_null())
  15       << "Use a NULL SingleReleaseCallback for an empty callback.";
  16 }
  17
  18 SingleReleaseCallback::~SingleReleaseCallback() {
  19   DCHECK(callback_.is_null()) << "SingleReleaseCallback was never run.";
  20 }
  21
  22 void SingleReleaseCallback::Run(uint32 sync_point, bool is_lost) {
  23   DCHECK(!callback_.is_null())
  24       << "SingleReleaseCallback was run more than once.";
  25   base::ResetAndReturn(&callback_).Run(sync_point, is_lost);
  26 }
  27
  28 }  // namespace cc