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/**
* @file llfixedbuffer.cpp
*
* $LicenseInfo:firstyear=2001&license=viewerlgpl$
* Second Life Viewer Source Code
* Copyright (C) 2010, Linden Research, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License only.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
* $/LicenseInfo$
*/
#include "linden_common.h"
#include "llfixedbuffer.h"
////////////////////////////////////////////////////////////////////////////
LLFixedBuffer::LLFixedBuffer(const U32 max_lines)
: LLLineBuffer(),
mMaxLines(max_lines),
mMutex()
{
mTimer.reset();
}
LLFixedBuffer::~LLFixedBuffer()
{
clear();
}
void LLFixedBuffer::clear()
{
mMutex.lock() ;
mLines.clear();
mAddTimes.clear();
mLineLengths.clear();
mMutex.unlock() ;
mTimer.reset();
}
void LLFixedBuffer::addLine(const std::string& utf8line)
{
LLWString wstring = utf8str_to_wstring(utf8line);
addWLine(wstring);
}
void LLFixedBuffer::addWLine(const LLWString& line)
{
if (line.empty())
{
return;
}
removeExtraLines();
mMutex.lock() ;
mLines.push_back(line);
mLineLengths.push_back((S32)line.length());
mAddTimes.push_back(mTimer.getElapsedTimeF32());
mMutex.unlock() ;
}
void LLFixedBuffer::setMaxLines(S32 max_lines)
{
mMaxLines = max_lines;
removeExtraLines();
}
void LLFixedBuffer::removeExtraLines()
{
mMutex.lock() ;
while ((S32)mLines.size() > llmax((S32)0, (S32)(mMaxLines - 1)))
{
mLines.pop_front();
mAddTimes.pop_front();
mLineLengths.pop_front();
}
mMutex.unlock() ;
}
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