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/**
* @file llscriptresource.h
* @brief LLScriptResource class definition
*
* $LicenseInfo:firstyear=2008&license=viewerlgpl$
* 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
* $/LicenseInfo$
*/
#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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