1 /*
2  * Copyright (C) 2018 The Android Open Source Project
3  *
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
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
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.
15  */
16 
17 #ifndef ANDROID_VOLD_STUB_VOLUME_H
18 #define ANDROID_VOLD_STUB_VOLUME_H
19 
20 #include "VolumeBase.h"
21 
22 namespace android {
23 namespace vold {
24 
25 /*
26  * A vold representation of volumes managed from outside Android (e.g., ARC++).
27  *
28  * Used for the case when events such that mounting and unmounting are
29  * actually handled from outside vold, and vold only need to keep track on those
30  * vents instead of talking to kernel directly.
31  */
32 class StubVolume : public VolumeBase {
33   public:
34     StubVolume(int id, const std::string& sourcePath, const std::string& mountPath,
35                const std::string& fsType, const std::string& fsUuid, const std::string& fsLabel);
36     virtual ~StubVolume();
37 
38   protected:
39     status_t doCreate() override;
40     status_t doDestroy() override;
41     status_t doMount() override;
42     status_t doUnmount() override;
43     status_t doFormat(const std::string& fsType) override;
44 
45   private:
46     const std::string mSourcePath;
47     const std::string mMountPath;
48     const std::string mFsType;
49     const std::string mFsUuid;
50     const std::string mFsLabel;
51 
52     DISALLOW_COPY_AND_ASSIGN(StubVolume);
53 };
54 
55 }  // namespace vold
56 }  // namespace android
57 
58 #endif
59