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Stream.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 MBED_STREAM_H 00017 #define MBED_STREAM_H 00018 00019 #include "platform/platform.h" 00020 #include "drivers/FileLike.h" 00021 #include <cstdarg> 00022 00023 namespace mbed { 00024 /** \addtogroup drivers */ 00025 /** @{*/ 00026 00027 extern void mbed_set_unbuffered_stream(FILE *_file); 00028 extern int mbed_getc(FILE *_file); 00029 extern char* mbed_gets(char *s, int size, FILE *_file); 00030 00031 /** File stream 00032 * 00033 * @Note Synchronization level: Set by subclass 00034 */ 00035 class Stream : public FileLike { 00036 00037 public: 00038 Stream(const char *name=NULL); 00039 virtual ~Stream(); 00040 00041 int putc(int c); 00042 int puts(const char *s); 00043 int getc(); 00044 char *gets(char *s, int size); 00045 int printf(const char* format, ...); 00046 int scanf(const char* format, ...); 00047 int vprintf(const char* format, std::va_list args); 00048 int vscanf(const char* format, std::va_list args); 00049 00050 operator std::FILE*() {return _file;} 00051 00052 protected: 00053 virtual int close(); 00054 virtual ssize_t write(const void* buffer, size_t length); 00055 virtual ssize_t read(void* buffer, size_t length); 00056 virtual off_t lseek(off_t offset, int whence); 00057 virtual int isatty(); 00058 virtual int fsync(); 00059 virtual off_t flen(); 00060 00061 virtual int _putc(int c) = 0; 00062 virtual int _getc() = 0; 00063 00064 std::FILE *_file; 00065 00066 /* disallow copy constructor and assignment operators */ 00067 private: 00068 Stream(const Stream&); 00069 Stream & operator = (const Stream&); 00070 }; 00071 00072 } // namespace mbed 00073 00074 #endif 00075 00076 /** @}*/
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