82e90de23d
StubVolume is a volume type for ARC++ external storage. Named StubVolume because it is managed from outside Android (not through Android kernel). Previously, StubVolume is a diskless volume. However, as mentioned in jsharkey@ email, a disk is needed for StubVolume to hold "kInternal" (external storage type that is "external" from Android perspective, but is "internal" to the device. For example shared directory from ChromeOS to Android) and "kIndexable" (whether or not a disk should be indexed by MediaStore). The addition of disk means we could expose the createStubVolume API to add a disk flags, which is also introduced in this CL. Both kInternal and kIndexable will be introduced in separate CL. Bug: 132796154 Test: Mount/unmount ARC++ removable device in ChromeOS. Change-Id: I8b77fa1cf50ab38a2892272154dafdb78f079378
58 lines
1.7 KiB
C++
58 lines
1.7 KiB
C++
/*
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* Copyright (C) 2018 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_STUB_VOLUME_H
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#define ANDROID_VOLD_STUB_VOLUME_H
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#include "VolumeBase.h"
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namespace android {
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namespace vold {
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/*
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* A vold representation of volumes managed from outside Android (e.g., ARC++).
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*
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* Used for the case when events such that mounting and unmounting are
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* actually handled from outside vold, and vold only need to keep track on those
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* vents instead of talking to kernel directly.
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*/
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class StubVolume : public VolumeBase {
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public:
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StubVolume(dev_t id, const std::string& sourcePath, const std::string& mountPath,
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const std::string& fsType, const std::string& fsUuid, const std::string& fsLabel);
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virtual ~StubVolume();
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protected:
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status_t doCreate() override;
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status_t doDestroy() override;
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status_t doMount() override;
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status_t doUnmount() override;
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status_t doFormat(const std::string& fsType) override;
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private:
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const std::string mSourcePath;
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const std::string mMountPath;
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const std::string mFsType;
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const std::string mFsUuid;
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const std::string mFsLabel;
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DISALLOW_COPY_AND_ASSIGN(StubVolume);
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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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