VolumeManager.h revision d9a4e358614a0c5f60cc76c0636ee4bb02004a32 
1/*
2 * Copyright (C) 2008 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 _VOLUMEMANAGER_H
18#define _VOLUMEMANAGER_H
19
20#include <pthread.h>
21
22#include <utils/List.h>
23#include <sysutils/SocketListener.h>
24
25#include "BlockDevice.h"
26#include "Volume.h"
27
28typedef android::List<char *> AsecIdCollection;
29
30class VolumeManager {
31private:
32    static VolumeManager *sInstance;
33
34private:
35    SocketListener        *mBroadcaster;
36    BlockDeviceCollection *mBlockDevices;
37
38    VolumeCollection      *mVolumes;
39    AsecIdCollection      *mActiveContainers;
40    bool                   mUsbMassStorageConnected;
41    bool                   mDebug;
42
43public:
44    virtual ~VolumeManager();
45
46    int start();
47    int stop();
48
49    void handleBlockEvent(NetlinkEvent *evt);
50    void handleSwitchEvent(NetlinkEvent *evt);
51
52    int addVolume(Volume *v);
53
54    int listVolumes(SocketClient *cli);
55    int mountVolume(const char *label);
56    int unmountVolume(const char *label, bool force);
57    int shareVolume(const char *label, const char *method);
58    int unshareVolume(const char *label, const char *method);
59    int shareAvailable(const char *method, bool *avail);
60    int shareEnabled(const char *path, const char *method, bool *enabled);
61    int simulate(const char *cmd, const char *arg);
62    int formatVolume(const char *label);
63    int createAsec(const char *id, unsigned numSectors, const char *fstype,
64                   const char *key, int ownerUid);
65    int finalizeAsec(const char *id);
66    int destroyAsec(const char *id, bool force);
67    int mountAsec(const char *id, const char *key, int ownerUid);
68    int unmountAsec(const char *id, bool force);
69    int renameAsec(const char *id1, const char *id2);
70    int getAsecMountPath(const char *id, char *buffer, int maxlen);
71
72    void setDebug(bool enable);
73
74    // XXX: This should be moved private once switch uevents are working
75    void notifyUmsConnected(bool connected);
76
77    void setBroadcaster(SocketListener *sl) { mBroadcaster = sl; }
78    SocketListener *getBroadcaster() { return mBroadcaster; }
79
80    static VolumeManager *Instance();
81
82    static char *asecHash(const char *id, char *buffer, size_t len);
83private:
84    VolumeManager();
85    Volume *lookupVolume(const char *label);
86    bool isMountpointMounted(const char *mp);
87};
88#endif
89