mirror of
https://github.com/pocoproject/poco.git
synced 2025-11-04 04:09:57 +01:00
94 lines
3.0 KiB
C++
94 lines
3.0 KiB
C++
//
|
|
// FileStream_POSIX.h
|
|
//
|
|
// $Id: //poco/Main/Foundation/include/Poco/FileStream_POSIX.h#5 $
|
|
//
|
|
// Library: Foundation
|
|
// Package: Streams
|
|
// Module: FileStream
|
|
//
|
|
// Definition of the FileStreamBuf, FileInputStream and FileOutputStream classes.
|
|
//
|
|
// Copyright (c) 2007, Applied Informatics Software Engineering GmbH.
|
|
// and Contributors.
|
|
//
|
|
// Permission is hereby granted, free of charge, to any person or organization
|
|
// obtaining a copy of the software and accompanying documentation covered by
|
|
// this license (the "Software") to use, reproduce, display, distribute,
|
|
// execute, and transmit the Software, and to prepare derivative works of the
|
|
// Software, and to permit third-parties to whom the Software is furnished to
|
|
// do so, all subject to the following:
|
|
//
|
|
// The copyright notices in the Software and this entire statement, including
|
|
// the above license grant, this restriction and the following disclaimer,
|
|
// must be included in all copies of the Software, in whole or in part, and
|
|
// all derivative works of the Software, unless such copies or derivative
|
|
// works are solely in the form of machine-executable object code generated by
|
|
// a source language processor.
|
|
//
|
|
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
// FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
|
|
// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
|
|
// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
|
|
// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
|
// DEALINGS IN THE SOFTWARE.
|
|
//
|
|
|
|
|
|
#ifndef Foundation_FileStream_POSIX_INCLUDED
|
|
#define Foundation_FileStream_POSIX_INCLUDED
|
|
|
|
|
|
#include "Poco/Foundation.h"
|
|
#include "Poco/BufferedBidirectionalStreamBuf.h"
|
|
#include <istream>
|
|
#include <ostream>
|
|
|
|
|
|
namespace Poco {
|
|
|
|
|
|
class Foundation_API FileStreamBuf: public BufferedBidirectionalStreamBuf
|
|
/// This stream buffer handles Fileio
|
|
{
|
|
public:
|
|
FileStreamBuf();
|
|
/// Creates a FileStreamBuf.
|
|
|
|
~FileStreamBuf();
|
|
/// Destroys the FileStream.
|
|
|
|
void open(const std::string& path, std::ios::openmode mode);
|
|
/// Opens the given file in the given mode.
|
|
|
|
void close();
|
|
/// Closes the File stream buffer.
|
|
|
|
std::streampos seekoff(std::streamoff off, std::ios::seekdir dir, std::ios::openmode mode = std::ios::in | std::ios::out);
|
|
/// Change position by offset, according to way and mode.
|
|
|
|
std::streampos seekpos(std::streampos pos, std::ios::openmode mode = std::ios::in | std::ios::out);
|
|
/// Change to specified position, according to mode.
|
|
|
|
protected:
|
|
enum
|
|
{
|
|
BUFFER_SIZE = 4096
|
|
};
|
|
|
|
int readFromDevice(char* buffer, std::streamsize length);
|
|
int writeToDevice(const char* buffer, std::streamsize length);
|
|
|
|
private:
|
|
std::string _path;
|
|
int _fd;
|
|
std::streamoff _pos;
|
|
};
|
|
|
|
|
|
} // namespace Poco
|
|
|
|
|
|
#endif // Foundation_FileStream_WIN32_INCLUDED
|