VolumeManager.h revision 1a06edaf4db4e9c520624bcc06e0e13ee470d90e 
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 "Volume.h"
26
27typedef android::List<char *> AsecIdCollection;
28
29class VolumeManager {
30private:
31    static VolumeManager *sInstance;
32
33private:
34    SocketListener        *mBroadcaster;
35
36    VolumeCollection      *mVolumes;
37    AsecIdCollection      *mActiveContainers;
38    bool                   mUsbMassStorageConnected;
39    bool                   mDebug;
40
41public:
42    virtual ~VolumeManager();
43
44    int start();
45    int stop();
46
47    void handleBlockEvent(NetlinkEvent *evt);
48    void handleSwitchEvent(NetlinkEvent *evt);
49
50    int addVolume(Volume *v);
51
52    int listVolumes(SocketClient *cli);
53    int mountVolume(const char *label);
54    int unmountVolume(const char *label, bool force);
55    int shareVolume(const char *label, const char *method);
56    int unshareVolume(const char *label, const char *method);
57    int shareAvailable(const char *method, bool *avail);
58    int shareEnabled(const char *path, const char *method, bool *enabled);
59    int simulate(const char *cmd, const char *arg);
60    int formatVolume(const char *label);
61    int createAsec(const char *id, unsigned numSectors, const char *fstype,
62                   const char *key, int ownerUid);
63    int finalizeAsec(const char *id);
64    int destroyAsec(const char *id, bool force);
65    int mountAsec(const char *id, const char *key, int ownerUid);
66    int unmountAsec(const char *id, bool force);
67    int renameAsec(const char *id1, const char *id2);
68    int getAsecMountPath(const char *id, char *buffer, int maxlen);
69
70    void setDebug(bool enable);
71
72    // XXX: This should be moved private once switch uevents are working
73    void notifyUmsConnected(bool connected);
74    // XXX: Post froyo this should be moved and cleaned up
75    int cleanupAsec(Volume *v, bool force);
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);
83
84private:
85    VolumeManager();
86    Volume *lookupVolume(const char *label);
87    bool isMountpointMounted(const char *mp);
88};
89#endif
90