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