98 lines
2.5 KiB
C++
98 lines
2.5 KiB
C++
/**
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* @file llscriptresource.cpp
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* @brief LLScriptResource class implementation for managing limited resources
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*
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* $LicenseInfo:firstyear=2008&license=viewergpl$
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*
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* Copyright (c) 2008-2009, Linden Research, Inc.
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*
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* Second Life Viewer Source Code
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* The source code in this file ("Source Code") is provided by Linden Lab
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* to you under the terms of the GNU General Public License, version 2.0
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* ("GPL"), unless you have obtained a separate licensing agreement
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* ("Other License"), formally executed by you and Linden Lab. Terms of
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* the GPL can be found in doc/GPL-license.txt in this distribution, or
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* online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
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*
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* There are special exceptions to the terms and conditions of the GPL as
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* it is applied to this Source Code. View the full text of the exception
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* in the file doc/FLOSS-exception.txt in this software distribution, or
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* online at
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* http://secondlifegrid.net/programs/open_source/licensing/flossexception
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*
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* By copying, modifying or distributing this software, you acknowledge
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* that you have read and understood your obligations described above,
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* and agree to abide by those obligations.
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*
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* ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
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* WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
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* COMPLETENESS OR PERFORMANCE.
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* $/LicenseInfo$
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*/
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#include "llscriptresource.h"
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#include "llerror.h"
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LLScriptResource::LLScriptResource()
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: mTotal(0),
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mUsed(0)
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{
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}
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bool LLScriptResource::request(S32 amount /* = 1 */)
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{
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if (mUsed + amount <= mTotal)
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{
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mUsed += amount;
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return true;
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}
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return false;
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}
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bool LLScriptResource::release(S32 amount /* = 1 */)
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{
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if (mUsed >= amount)
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{
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mUsed -= amount;
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return true;
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}
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return false;
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}
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S32 LLScriptResource::getAvailable() const
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{
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if (mUsed > mTotal)
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{
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// It is possible after a parcel ownership change for more than total to be used
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// In this case the user of this class just wants to know
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// whether or not they can use a resource
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return 0;
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}
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return (mTotal - mUsed);
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}
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void LLScriptResource::setTotal(S32 amount)
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{
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// This may cause this resource to be over spent
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// such that more are in use than total allowed
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// Until those resources are released getAvailable will return 0.
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mTotal = amount;
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}
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S32 LLScriptResource::getTotal() const
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{
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return mTotal;
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}
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S32 LLScriptResource::getUsed() const
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{
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return mUsed;
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}
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bool LLScriptResource::isOverLimit() const
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{
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return (mUsed > mTotal);
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}
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