1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
|
/*
* Copyright (C) 2011 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package android.os.storage;
import android.os.Parcel;
import android.os.Parcelable;
/**
* A class representing a storage volume
* @hide
*/
public class StorageVolume implements Parcelable {
//private static final String TAG = "StorageVolume";
private final String mPath;
private final String mDescription;
private final boolean mRemovable;
private final boolean mEmulated;
private final int mMtpReserveSpace;
private final boolean mAllowMassStorage;
private int mStorageId;
// StorageVolume extra for ACTION_MEDIA_REMOVED, ACTION_MEDIA_UNMOUNTED, ACTION_MEDIA_CHECKING,
// ACTION_MEDIA_NOFS, ACTION_MEDIA_MOUNTED, ACTION_MEDIA_SHARED, ACTION_MEDIA_UNSHARED,
// ACTION_MEDIA_BAD_REMOVAL, ACTION_MEDIA_UNMOUNTABLE and ACTION_MEDIA_EJECT broadcasts.
public static final String EXTRA_STORAGE_VOLUME = "storage_volume";
public StorageVolume(String path, String description, boolean removable,
boolean emulated, int mtpReserveSpace, boolean allowMassStorage) {
mPath = path;
mDescription = description;
mRemovable = removable;
mEmulated = emulated;
mMtpReserveSpace = mtpReserveSpace;
mAllowMassStorage = allowMassStorage;
}
// for parcelling only
private StorageVolume(String path, String description, boolean removable,
boolean emulated, int mtpReserveSpace, int storageId, boolean allowMassStorage) {
mPath = path;
mDescription = description;
mRemovable = removable;
mEmulated = emulated;
mMtpReserveSpace = mtpReserveSpace;
mAllowMassStorage = allowMassStorage;
mStorageId = storageId;
}
/**
* Returns the mount path for the volume.
*
* @return the mount path
*/
public String getPath() {
return mPath;
}
/**
* Returns a user visible description of the volume.
*
* @return the volume description
*/
public String getDescription() {
return mDescription;
}
/**
* Returns true if the volume is removable.
*
* @return is removable
*/
public boolean isRemovable() {
return mRemovable;
}
/**
* Returns true if the volume is emulated.
*
* @return is removable
*/
public boolean isEmulated() {
return mEmulated;
}
/**
* Returns the MTP storage ID for the volume.
* this is also used for the storage_id column in the media provider.
*
* @return MTP storage ID
*/
public int getStorageId() {
return mStorageId;
}
/**
* Do not call this unless you are MountService
*/
public void setStorageId(int index) {
// storage ID is 0x00010001 for primary storage,
// then 0x00020001, 0x00030001, etc. for secondary storages
mStorageId = ((index + 1) << 16) + 1;
}
/**
* Number of megabytes of space to leave unallocated by MTP.
* MTP will subtract this value from the free space it reports back
* to the host via GetStorageInfo, and will not allow new files to
* be added via MTP if there is less than this amount left free in the storage.
* If MTP has dedicated storage this value should be zero, but if MTP is
* sharing storage with the rest of the system, set this to a positive value
* to ensure that MTP activity does not result in the storage being
* too close to full.
*
* @return MTP reserve space
*/
public int getMtpReserveSpace() {
return mMtpReserveSpace;
}
/**
* Returns true if this volume can be shared via USB mass storage.
*
* @return whether mass storage is allowed
*/
public boolean allowMassStorage() {
return mAllowMassStorage;
}
@Override
public boolean equals(Object obj) {
if (obj instanceof StorageVolume && mPath != null) {
StorageVolume volume = (StorageVolume)obj;
return (mPath.equals(volume.mPath));
}
return false;
}
@Override
public int hashCode() {
return mPath.hashCode();
}
@Override
public String toString() {
return mPath;
}
public static final Parcelable.Creator<StorageVolume> CREATOR =
new Parcelable.Creator<StorageVolume>() {
public StorageVolume createFromParcel(Parcel in) {
String path = in.readString();
String description = in.readString();
int removable = in.readInt();
int emulated = in.readInt();
int storageId = in.readInt();
int mtpReserveSpace = in.readInt();
int allowMassStorage = in.readInt();
return new StorageVolume(path, description,
removable == 1, emulated == 1,
mtpReserveSpace, storageId, allowMassStorage == 1);
}
public StorageVolume[] newArray(int size) {
return new StorageVolume[size];
}
};
public int describeContents() {
return 0;
}
public void writeToParcel(Parcel parcel, int flags) {
parcel.writeString(mPath);
parcel.writeString(mDescription);
parcel.writeInt(mRemovable ? 1 : 0);
parcel.writeInt(mEmulated ? 1 : 0);
parcel.writeInt(mStorageId);
parcel.writeInt(mMtpReserveSpace);
parcel.writeInt(mAllowMassStorage ? 1 : 0);
}
}
|