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 _LOOP_H
18 #define _LOOP_H
19 
20 #include <linux/loop.h>
21 #include <unistd.h>
22 #include <string>
23 
24 class Loop {
25   public:
26     static const int LOOP_MAX = 4096;
27 
28   public:
29     static int create(const std::string& file, std::string& out_device);
30     static int destroyByDevice(const char* loopDevice);
31     static int destroyAll();
32     static int createImageFile(const char* file, unsigned long numSectors);
33     static int resizeImageFile(const char* file, unsigned long numSectors);
34 };
35 
36 #endif
37