StubVolume is a Volume that is maintained by external party such as the ChromeOS processes in ARC++. Bug: 110380403 Test: Tested on ARC++ Change-Id: I3198bd7283d5f60a524da3707dea7385ffec599dgugelfrei
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/*
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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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#include "StubVolume.h"
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#include <android-base/logging.h>
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#include <android-base/stringprintf.h>
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using android::base::StringPrintf;
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namespace android {
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namespace vold {
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StubVolume::StubVolume(int id, const std::string& sourcePath, const std::string& mountPath,
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const std::string& fsType, const std::string& fsUuid,
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const std::string& fsLabel)
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: VolumeBase(Type::kStub),
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mSourcePath(sourcePath),
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mMountPath(mountPath),
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mFsType(fsType),
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mFsUuid(fsUuid),
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mFsLabel(fsLabel) {
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setId(StringPrintf("stub:%d", id));
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}
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StubVolume::~StubVolume() {}
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status_t StubVolume::doCreate() {
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return OK;
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}
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status_t StubVolume::doDestroy() {
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return OK;
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}
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status_t StubVolume::doMount() {
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auto listener = getListener();
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if (listener) listener->onVolumeMetadataChanged(getId(), mFsType, mFsUuid, mFsLabel);
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setInternalPath(mSourcePath);
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setPath(mMountPath);
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return OK;
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}
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status_t StubVolume::doUnmount() {
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return OK;
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}
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// TODO: return error instead.
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status_t StubVolume::doFormat(const std::string& fsType) {
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return OK;
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}
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} // namespace vold
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} // namespace android
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/*
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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(int 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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