base/callback_helpers.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 "base/callback_helpers.h"
   6
   7 #include "base/callback.h"
   8
   9 namespace base {
  10
  11 ScopedClosureRunner::ScopedClosureRunner() {
  12 }
  13
  14 ScopedClosureRunner::ScopedClosureRunner(const Closure& closure)
  15     : closure_(closure) {
  16 }
  17
  18 ScopedClosureRunner::~ScopedClosureRunner() {
  19   if (!closure_.is_null())
  20     closure_.Run();
  21 }
  22
  23 void ScopedClosureRunner::Reset() {
  24   Closure old_closure = Release();
  25   if (!old_closure.is_null())
  26     old_closure.Run();
  27 }
  28
  29 void ScopedClosureRunner::Reset(const Closure& closure) {
  30   Closure old_closure = Release();
  31   closure_ = closure;
  32   if (!old_closure.is_null())
  33     old_closure.Run();
  34 }
  35
  36 Closure ScopedClosureRunner::Release() {
  37   Closure result = closure_;
  38   closure_.Reset();
  39   return result;
  40 }
  41
  42 }  // namespace base