07e64a4cea
- Remove bind mounting Android/ code as we want to bind mount obb dir for each process instead. - Set property "vold.vold.fuse_running_users" as an array of user id for which fuse is ready to use. - After fuse is ready for a user, fork a background process in vold to bind mount all direct boot apps for that user so its direct boot apps obb dir will be mounted to lower fs for imporoved performance. Bug: 148049767 Bug: 137890172 Test: After flag is enabled, AdoptableHostTest still pass. Change-Id: I90079fbeed1c91f9780ca71e37b0012884680b7c
77 lines
2.2 KiB
C++
77 lines
2.2 KiB
C++
/*
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* Copyright (C) 2015 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef ANDROID_VOLD_EMULATED_VOLUME_H
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#define ANDROID_VOLD_EMULATED_VOLUME_H
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#include "VolumeBase.h"
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#include <cutils/multiuser.h>
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namespace android {
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namespace vold {
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/*
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* Shared storage emulated on top of private storage.
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*
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* Knows how to spawn a sdcardfs daemon to synthesize permissions. ObbVolume
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* can be stacked above it.
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*
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* This volume is always multi-user aware, but is only binds itself to
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* users when its primary storage. This volume should never be presented
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* as secondary storage, since we're strongly encouraging developers to
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* store data local to their app.
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*/
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class EmulatedVolume : public VolumeBase {
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public:
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explicit EmulatedVolume(const std::string& rawPath, int userId);
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EmulatedVolume(const std::string& rawPath, dev_t device, const std::string& fsUuid, int userId);
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virtual ~EmulatedVolume();
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std::string getRootPath() const override;
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protected:
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status_t doMount() override;
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status_t doUnmount() override;
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private:
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status_t mountFuseBindMounts();
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status_t unmountFuseBindMounts();
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std::string getLabel();
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std::string mRawPath;
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std::string mLabel;
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std::string mSdcardFsDefault;
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std::string mSdcardFsRead;
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std::string mSdcardFsWrite;
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std::string mSdcardFsFull;
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/* Whether we mounted FUSE for this volume */
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bool mFuseMounted;
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/* Whether to use sdcardfs for this volume */
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bool mUseSdcardFs;
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/* Whether to use app data isolation is enabled tor this volume */
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bool mAppDataIsolationEnabled;
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DISALLOW_COPY_AND_ASSIGN(EmulatedVolume);
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};
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} // namespace vold
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} // namespace android
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#endif
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