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_DISK_H
18 #define ANDROID_VOLD_DISK_H
22 #include <utils/Errors.h>
33 // disk_meta 127:4 [size] [label]
34 // disk_destroyed 127:4
37 // disk partition_public 127:4
38 // disk partition_private 127:4
39 // disk partition_mixed 127:4 50
42 * Representation of detected physical media.
44 * Knows how to create volumes based on the partition tables found, and also
45 * how to repartition itself.
49 Disk(const std::string& eventPath, dev_t device);
52 const std::string& getId() { return mId; }
53 const std::string& getSysPath() { return mSysPath; }
54 const std::string& getDevPath() { return mDevPath; }
55 dev_t getDevice() { return mDevice; }
56 uint64_t getSize() { return mSize; }
57 const std::string& getLabel() { return mLabel; }
59 std::shared_ptr<VolumeBase> findVolume(const std::string& id);
61 status_t readMetadata();
62 status_t readPartitions();
64 status_t partitionPublic();
65 status_t partitionPrivate();
66 status_t partitionMixed(int8_t ratio);
69 /* ID that uniquely references this disk */
71 /* Device path under sysfs */
73 /* Device path under dev */
75 /* Kernel device representing disk */
77 /* Size of disk, in bytes */
79 /* User-visible label, such as manufacturer */
81 /* Current partitions on disk */
82 std::vector<std::shared_ptr<VolumeBase>> mParts;
86 DISALLOW_COPY_AND_ASSIGN(Disk);
90 } // namespace android