Volume.h revision dd9b8e92aaf330b48ddb40a7380588ef92b53de6
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 _VOLUME_H 18#define _VOLUME_H 19 20#include <utils/List.h> 21 22class NetlinkEvent; 23 24class Volume { 25private: 26 int mState; 27 28public: 29 static const int State_Init = -1; 30 static const int State_Idle = 1; 31 static const int State_Pending = 2; 32 static const int State_Mounted = 3; 33 static const int State_Checking = 4; 34 static const int State_Formatting = 5; 35 36protected: 37 char *mLabel; 38 char *mMountpoint; 39 40public: 41 Volume(const char *label, const char *mount_point); 42 virtual ~Volume(); 43 44 int mount(); 45 int unmount(); 46 47 const char *getLabel() { return mLabel; } 48 const char *getMountpoint() { return mMountpoint; } 49 int getState() { return mState; } 50 51 virtual int handleBlockEvent(NetlinkEvent *evt); 52 53protected: 54 void setState(int state); 55 56 virtual int prepareToMount(int *major, int *minor) = 0; 57 58 int createDeviceNode(const char *path, int major, int minor); 59 60private: 61 int checkFilesystem(const char *nodepath); 62}; 63 64typedef android::List<Volume *> VolumeCollection; 65 66#endif 67