FATDirHandle.h

00001 /* mbed Microcontroller Library
00002  * Copyright (c) 2006-2012 ARM Limited
00003  *
00004  * Permission is hereby granted, free of charge, to any person obtaining a copy
00005  * of this software and associated documentation files (the "Software"), to deal
00006  * in the Software without restriction, including without limitation the rights
00007  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
00008  * copies of the Software, and to permit persons to whom the Software is
00009  * furnished to do so, subject to the following conditions:
00010  *
00011  * The above copyright notice and this permission notice shall be included in
00012  * all copies or substantial portions of the Software.
00013  *
00014  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
00015  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
00016  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
00017  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
00018  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
00019  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
00020  * SOFTWARE.
00021  */
00022 #ifndef MBED_FATDIRHANDLE_H
00023 #define MBED_FATDIRHANDLE_H
00024 
00025 #include "DirHandle.h"
00026 #include "PlatformMutex.h"
00027 
00028 using namespace mbed;
00029 
00030 class FATDirHandle : public DirHandle {
00031 
00032  public:
00033     FATDirHandle(const FATFS_DIR &the_dir, PlatformMutex * mutex);
00034     virtual int closedir();
00035     virtual struct dirent *readdir();
00036     virtual void rewinddir();
00037     virtual off_t telldir();
00038     virtual void seekdir(off_t location);
00039 
00040  protected:
00041 
00042     virtual void lock();
00043     virtual void unlock();
00044 
00045     PlatformMutex * _mutex;
00046 
00047  private:
00048     FATFS_DIR dir;
00049     struct dirent cur_entry;
00050 
00051 };
00052 
00053 #endif