2 * Copyright (C) 2015 The Android Open Source Project
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
17 #ifndef ANDROID_VOLD_EMULATED_VOLUME_H
18 #define ANDROID_VOLD_EMULATED_VOLUME_H
20 #include "VolumeBase.h"
22 #include <cutils/multiuser.h>
28 * Shared storage emulated on top of private storage.
30 * Knows how to spawn a FUSE daemon to synthesize permissions. ObbVolume
31 * can be stacked above it.
33 * This volume is always multi-user aware, but is only binds itself to
34 * users when its primary storage. This volume should never be presented
35 * as secondary storage, since we're strongly encouraging developers to
36 * store data local to their app.
38 class EmulatedVolume : public VolumeBase {
40 explicit EmulatedVolume(const std::string& rawPath);
41 EmulatedVolume(const std::string& rawPath, dev_t device, const std::string& fsUuid);
42 virtual ~EmulatedVolume();
45 status_t doMount() override;
46 status_t doUnmount() override;
52 std::string mFuseDefault;
53 std::string mFuseRead;
54 std::string mFuseWrite;
56 /* PID of FUSE wrapper */
59 DISALLOW_COPY_AND_ASSIGN(EmulatedVolume);
63 } // namespace android