//
// CompressedLogFile.h
//
// Library: Foundation
// Package: Logging
// Module:  CompressedLogFile
//
// Definition of the LogFile class.
//
// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// SPDX-License-Identifier:	BSL-1.0
//


#ifndef Foundation_CompressedLogFile_INCLUDED
#define Foundation_CompressedLogFile_INCLUDED


#include "Poco/Foundation.h"
#include "Poco/LogFile.h"
#include "Poco/Buffer.h"

#include <lz4.h>
#include <lz4frame.h>


namespace Poco {


class Foundation_API CompressedLogFile: public LogFile
{
public:

	CompressedLogFile(const std::string& path);
		/// Allocates buffer and initializes compession state.

	~CompressedLogFile();
		/// Destoys CompressedLogFile

	void write(const std::string& text, bool flush = true);
		/// Writes the given text to the compressed log file.
		/// If flush is true, the text will be immediately
		/// flushed to the file.

private:
	Poco::Buffer<char> _buffer;

	LZ4F_preferences_t _kPrefs;
	LZ4F_compressionContext_t _ctx;
};


} // namespace Poco




#endif // Foundation_CompressedLogFile_INCLUDED