/indra/llcommon/llfixedbuffer.cpp
C++ | 97 lines | 56 code | 16 blank | 25 comment | 2 complexity | 8c455ef7a045f5c24c62df46bbeb26dd MD5 | raw file
Possible License(s): LGPL-2.1
- /**
- * @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(NULL)
- {
- 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() ;
- }