SemihostedFileSystem.h

00001 /* mbed Microcontroller Library
00002  * Copyright (c) 2006-2013 ARM Limited
00003  *
00004  * Licensed under the Apache License, Version 2.0 (the "License");
00005  * you may not use this file except in compliance with the License.
00006  * You may obtain a copy of the License at
00007  *
00008  *     http://www.apache.org/licenses/LICENSE-2.0
00009  *
00010  * Unless required by applicable law or agreed to in writing, software
00011  * distributed under the License is distributed on an "AS IS" BASIS,
00012  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00013  * See the License for the specific language governing permissions and
00014  * limitations under the License.
00015  */
00016 #ifndef SEMIHOSTEDFILESYSTEM_H
00017 #define SEMIHOSTEDFILESYSTEM_H
00018 
00019 #include "platform/platform.h"
00020 
00021 #include "platform/FileSystemLike.h"
00022 #include "platform/PlatformMutex.h"
00023 #include "platform/NonCopyable.h"
00024 
00025 /** \addtogroup platform */
00026 /** @{*/
00027 
00028 FILEHANDLE semihosted_file_open(const char* name, int flags);
00029 /** @}*/
00030 
00031 /**
00032  * @class SemihostedFileHandle
00033  * @ingroup platform
00034  */
00035 class SemihostedFileHandle : public mbed::FileHandle, private mbed::NonCopyable<SemihostedFileHandle> {
00036 
00037 public:
00038     SemihostedFileHandle(FILEHANDLE fh);
00039     SemihostedFileHandle(const char* name, int flags);
00040 
00041     virtual int close();
00042 
00043     virtual ssize_t write(const void *buffer, size_t length);
00044 
00045     virtual ssize_t read(void *buffer, size_t length);
00046 
00047     virtual int isatty();
00048 
00049     virtual off_t seek(off_t position, int whence);
00050 
00051     virtual int sync();
00052 
00053     virtual off_t size();
00054     
00055     int printf(const char *format, ...);
00056 
00057 protected:
00058     virtual void lock();
00059     virtual void unlock();
00060     FILEHANDLE _fh;
00061     int pos;
00062     PlatformMutex _mutex;
00063 };
00064 
00065 #endif