| // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "chrome/installer/util/callback_work_item.h" |
| |
| #include "base/callback.h" |
| #include "base/logging.h" |
| #include "chrome/installer/util/work_item.h" |
| |
| CallbackWorkItem::CallbackWorkItem( |
| base::Callback<bool(const CallbackWorkItem&)> callback) |
| : callback_(callback), |
| roll_state_(RS_UNDEFINED) { |
| } |
| |
| CallbackWorkItem::~CallbackWorkItem() { |
| } |
| |
| bool CallbackWorkItem::Do() { |
| DCHECK_EQ(roll_state_, RS_UNDEFINED); |
| |
| roll_state_ = RS_FORWARD; |
| bool result = callback_.Run(*this); |
| roll_state_ = RS_UNDEFINED; |
| |
| return result; |
| } |
| |
| void CallbackWorkItem::Rollback() { |
| DCHECK_EQ(roll_state_, RS_UNDEFINED); |
| |
| roll_state_ = RS_BACKWARD; |
| ignore_result(callback_.Run(*this)); |
| roll_state_ = RS_UNDEFINED; |
| } |
| |
| bool CallbackWorkItem::IsRollback() const { |
| DCHECK_NE(roll_state_, RS_UNDEFINED); |
| return roll_state_ == RS_BACKWARD; |
| } |