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/**
* @file llscriptresource.h
* @brief LLScriptResource class definition
*
* $LicenseInfo:firstyear=2008&license=viewergpl$
*
* 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.
* $/LicenseInfo$
*/
#ifndef LL_LLSCRIPTRESOURCE_H
#define LL_LLSCRIPTRESOURCE_H
#include "stdtypes.h"
// An LLScriptResource is a limited resource per ID.
class LLScriptResource
{
public:
LLScriptResource();
// If amount resources are available will mark amount resouces
// used and returns true
// Otherwise returns false and doesn't mark any resources used.
bool request(S32 amount = 1);
// Release amount resources from use if at least amount resources are used and return true
// If amount is more than currently used no resources are released and return false
bool release(S32 amount = 1);
// Returns how many resources are available
S32 getAvailable() const;
// Sets the total amount of available resources
// It is possible to set the amount to less than currently used
// Most likely to happen on parcel ownership change
void setTotal(S32 amount);
// Get the total amount of available resources
S32 getTotal() const;
// Get the number of resources used
S32 getUsed() const;
// true if more resources used than total available
bool isOverLimit() const;
private:
S32 mTotal; // How many resources have been set aside
S32 mUsed; // How many resources are currently in use
};
#endif // LL_LLSCRIPTRESOURCE_H
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