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/**
* @file llscriptresource.cpp
* @brief LLScriptResource class implementation for managing limited resources
*
* $LicenseInfo:firstyear=2008&license=viewergpl$
*
* Copyright (c) 2008-2009, Linden Research, Inc.
*
* 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
*
* 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
*
* 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.
*
* ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
* WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
* COMPLETENESS OR PERFORMANCE.
* $/LicenseInfo$
*/
#include "linden_common.h"
#include "llscriptresource.h"
#include "llerror.h"
LLScriptResource::LLScriptResource()
: mTotal(0),
mUsed(0)
{
}
bool LLScriptResource::request(S32 amount /* = 1 */)
{
if (mUsed + amount <= mTotal)
{
mUsed += amount;
return true;
}
return false;
}
bool LLScriptResource::release(S32 amount /* = 1 */)
{
if (mUsed >= amount)
{
mUsed -= amount;
return true;
}
return false;
}
S32 LLScriptResource::getAvailable() const
{
if (mUsed > mTotal)
{
// It is possible after a parcel ownership change for more than total to be used
// In this case the user of this class just wants to know
// whether or not they can use a resource
return 0;
}
return (mTotal - mUsed);
}
void LLScriptResource::setTotal(S32 amount)
{
// This may cause this resource to be over spent
// such that more are in use than total allowed
// Until those resources are released getAvailable will return 0.
mTotal = amount;
}
S32 LLScriptResource::getTotal() const
{
return mTotal;
}
S32 LLScriptResource::getUsed() const
{
return mUsed;
}
bool LLScriptResource::isOverLimit() const
{
return (mUsed > mTotal);
}
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