mirror of https://github.com/ARMmbed/mbed-os.git
94 lines
2.3 KiB
C++
94 lines
2.3 KiB
C++
/* mbed Microcontroller Library
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* Copyright (c) 2006-2013 ARM Limited
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef MBED_STREAM_H
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#define MBED_STREAM_H
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#include "platform/platform.h"
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#include "platform/FileLike.h"
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#include "platform/FileHandle.h"
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#include "platform/NonCopyable.h"
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#include <cstdio>
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#include <cstdarg>
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namespace mbed {
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/** \addtogroup platform */
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/** @{*/
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/**
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* \defgroup platform_Stream Stream class
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* @{
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*/
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extern void mbed_set_unbuffered_stream(std::FILE *_file);
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extern int mbed_getc(std::FILE *_file);
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extern char* mbed_gets(char *s, int size, std::FILE *_file);
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/** File stream
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*
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* @note Synchronization level: Set by subclass
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*/
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class Stream : public FileLike, private NonCopyable<Stream> {
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public:
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Stream(const char *name=NULL);
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virtual ~Stream();
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int putc(int c);
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int puts(const char *s);
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int getc();
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char *gets(char *s, int size);
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int printf(const char* format, ...);
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int scanf(const char* format, ...);
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int vprintf(const char* format, std::va_list args);
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int vscanf(const char* format, std::va_list args);
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operator std::FILE*() {return _file;}
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protected:
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virtual int close();
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virtual ssize_t write(const void* buffer, size_t length);
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virtual ssize_t read(void* buffer, size_t length);
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virtual off_t seek(off_t offset, int whence);
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virtual off_t tell();
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virtual void rewind();
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virtual int isatty();
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virtual int sync();
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virtual off_t size();
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virtual int _putc(int c) = 0;
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virtual int _getc() = 0;
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std::FILE *_file;
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/** Acquire exclusive access to this object.
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*/
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virtual void lock() {
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// Stub
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}
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/** Release exclusive access to this object.
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*/
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virtual void unlock() {
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// Stub
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}
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};
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/**@}*/
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/**@}*/
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} // namespace mbed
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#endif
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