diff options
Diffstat (limited to 'indra/llmessage/llthrottle.cpp')
| -rw-r--r-- | indra/llmessage/llthrottle.cpp | 61 |
1 files changed, 40 insertions, 21 deletions
diff --git a/indra/llmessage/llthrottle.cpp b/indra/llmessage/llthrottle.cpp index 70279a3c62..64ebd51fec 100644 --- a/indra/llmessage/llthrottle.cpp +++ b/indra/llmessage/llthrottle.cpp @@ -2,31 +2,25 @@ * @file llthrottle.cpp * @brief LLThrottle class used for network bandwidth control. * - * $LicenseInfo:firstyear=2001&license=viewergpl$ - * - * Copyright (c) 2001-2009, Linden Research, Inc. - * + * $LicenseInfo:firstyear=2001&license=viewerlgpl$ * 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 + * 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. * - * 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 + * 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. * - * 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. + * 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 * - * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO - * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY, - * COMPLETENESS OR PERFORMANCE. + * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA * $/LicenseInfo$ */ @@ -265,6 +259,31 @@ BOOL LLThrottleGroup::setNominalBPS(F32* throttle_vec) return changed; } +// Return bits available in the channel +S32 LLThrottleGroup::getAvailable(S32 throttle_cat) +{ + S32 retval = 0; + + F32 category_bps = mCurrentBPS[throttle_cat]; + F32 lookahead_bits = category_bps * THROTTLE_LOOKAHEAD_TIME; + + // use a temporary bits_available + // since we don't want to change mBitsAvailable every time + F32 elapsed_time = (F32)(LLMessageSystem::getMessageTimeSeconds() - mLastSendTime[throttle_cat]); + F32 bits_available = mBitsAvailable[throttle_cat] + (category_bps * elapsed_time); + + if (bits_available >= lookahead_bits) + { + retval = (S32) gThrottleMaximumBPS[throttle_cat]; + } + else + { + retval = (S32) bits_available; + } + + return retval; +} + BOOL LLThrottleGroup::checkOverflow(S32 throttle_cat, F32 bits) { |