poco/Foundation/include/Poco/FileStream_WIN32.h
Roger Meier b0581433a7 LICENSE: add info about SPDX-License-Identifier usage and use it
fix: remove executable flag and change back to 100644 (was 100755)

Signed-off-by: Roger Meier <r.meier@siemens.com>
2014-05-14 08:38:09 +02:00

74 lines
1.6 KiB
C++

//
// FileStream_WIN32.h
//
// $Id: //poco/1.4/Foundation/include/Poco/FileStream_WIN32.h#1 $
//
// Library: Foundation
// Package: Streams
// Module: FileStream
//
// Definition of the FileStreamBuf, FileInputStream and FileOutputStream classes.
//
// Copyright (c) 2007, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// SPDX-License-Identifier: BSL-1.0
//
#ifndef Foundation_FileStream_WIN32_INCLUDED
#define Foundation_FileStream_WIN32_INCLUDED
#include "Poco/Foundation.h"
#include "Poco/BufferedBidirectionalStreamBuf.h"
#include "Poco/UnWindows.h"
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.
bool close();
/// Closes the File stream buffer. Returns true if successful,
/// false otherwise.
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;
HANDLE _handle;
UInt64 _pos;
};
} // namespace Poco
#endif // Foundation_FileStream_WIN32_INCLUDED