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/**
* @file llfixedbuffer.h
* @brief A fixed size buffer of lines.
*
* $LicenseInfo:firstyear=2001&license=viewergpl$
*
* Copyright (c) 2001-2009, Linden Research, Inc.
*
* Second Life Viewer Source Code
* The source code in this file ("Source Code") is provided by Linden Lab
* to you under the terms of the GNU General Public License, version 2.0
* ("GPL"), unless you have obtained a separate licensing agreement
* ("Other License"), formally executed by you and Linden Lab. Terms of
* the GPL can be found in doc/GPL-license.txt in this distribution, or
* online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
*
* There are special exceptions to the terms and conditions of the GPL as
* it is applied to this Source Code. View the full text of the exception
* in the file doc/FLOSS-exception.txt in this software distribution, or
* online at
* http://secondlifegrid.net/programs/open_source/licensing/flossexception
*
* By copying, modifying or distributing this software, you acknowledge
* that you have read and understood your obligations described above,
* and agree to abide by those obligations.
*
* ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
* WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
* COMPLETENESS OR PERFORMANCE.
* $/LicenseInfo$
*/
#ifndef LL_LLFIXEDBUFFER_H
#define LL_LLFIXEDBUFFER_H
#include "timer.h"
#include <deque>
#include <string>
#include "llstring.h"
#include "llthread.h"
// Fixed size buffer for console output and other things.
class LLFixedBuffer
{
public:
LLFixedBuffer(const U32 max_lines = 20);
virtual ~LLFixedBuffer();
LLTimer mTimer;
U32 mMaxLines;
std::deque<LLWString> mLines;
std::deque<F32> mAddTimes;
std::deque<S32> mLineLengths;
void clear(); // Clear the buffer, and reset it.
//do not make these two "virtual"
void addLine(const std::string& utf8line);
void addLine(const LLWString& line);
// Get lines currently in the buffer, up to max_size chars, max_length lines
char *getLines(U32 max_size = 0, U32 max_length = 0);
void setMaxLines(S32 max_lines);
protected:
virtual void removeExtraLines();
protected:
LLMutex mMutex ;
};
const U32 FIXED_BUF_MAX_LINE_LEN = 255; // Not including termnating 0
#endif //LL_FIXED_BUFFER_H
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