VolumeManager.h revision 4ba8948dc16463053e21cda5744f519a555080d0 
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
42public:
43    virtual ~VolumeManager();
44
45    int start();
46    int stop();
47
48    void handleBlockEvent(NetlinkEvent *evt);
49    void handleSwitchEvent(NetlinkEvent *evt);
50
51    int addVolume(Volume *v);
52
53    int listVolumes(SocketClient *cli);
54    int mountVolume(const char *label);
55    int unmountVolume(const char *label, bool force);
56    int shareVolume(const char *label, const char *method);
57    int unshareVolume(const char *label, const char *method);
58    int shareAvailable(const char *method, bool *avail);
59    int shareEnabled(const char *path, const char *method, bool *enabled);
60    int simulate(const char *cmd, const char *arg);
61    int formatVolume(const char *label);
62    int createAsec(const char *id, unsigned numSectors, const char *fstype,
63                   const char *key, int ownerUid);
64    int finalizeAsec(const char *id);
65    int destroyAsec(const char *id, bool force);
66    int mountAsec(const char *id, const char *key, int ownerUid);
67    int unmountAsec(const char *id, bool force);
68    int renameAsec(const char *id1, const char *id2);
69    int getAsecMountPath(const char *id, char *buffer, int maxlen);
70
71    // XXX: This should be moved private once switch uevents are working
72    void notifyUmsConnected(bool connected);
73
74    void setBroadcaster(SocketListener *sl) { mBroadcaster = sl; }
75    SocketListener *getBroadcaster() { return mBroadcaster; }
76
77    static VolumeManager *Instance();
78
79private:
80    VolumeManager();
81    Volume *lookupVolume(const char *label);
82    bool isMountpointMounted(const char *mp);
83};
84#endif
85