platform_system_vold/MoveTask.h
Jeff Sharkey 1d6fbcc389 Migrate primary external storage.
When requested, kick off a thread that will migrate storage contents
between two locations.  This is performed in several steps that
also interact with the framework:

1. Take old and new volumes offline during migration
2. Wipe new location clean (10% of progress)
3. Copy files from old to new (60% of progress)
4. Inform framework that move was successful so it can persist
5. Wipe old location clean (15% of progress)

Derives a hacky progress estimate by using a rough proxy of free
disk space changes while a cp/rm is taking place.

Add new internal path for direct access to volumes to bypass any
FUSE emulation overhead, and send it to framework.  Remove mutex
around various exec calls since setexeccon() is already per-thread.

Bug: 19993667
Change-Id: Ibcb4f6fe0126d05b2365f316f53e71dc3e79a2b8
2015-04-24 16:08:07 -07:00

48 lines
1.2 KiB
C++

/*
* Copyright (C) 2015 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef ANDROID_VOLD_MOVE_TASK_H
#define ANDROID_VOLD_MOVE_TASK_H
#include "Utils.h"
#include "VolumeBase.h"
#include <thread>
namespace android {
namespace vold {
class MoveTask {
public:
MoveTask(const std::shared_ptr<VolumeBase>& from, const std::shared_ptr<VolumeBase>& to);
virtual ~MoveTask();
void start();
private:
std::shared_ptr<VolumeBase> mFrom;
std::shared_ptr<VolumeBase> mTo;
std::thread mThread;
void run();
DISALLOW_COPY_AND_ASSIGN(MoveTask);
};
} // namespace vold
} // namespace android
#endif