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/**
* @file lluseroperation.h
* @brief LLUserOperation class header file - used for message based
* transaction. For example, L$ transactions.
*
* $LicenseInfo:firstyear=2002&license=viewergpl$
*
* Copyright (c) 2002-2008, 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_LLUSEROPERATION_H
#define LL_LLUSEROPERATION_H
#include "lluuid.h"
#include "llframetimer.h"
#include <map>
class LLUserOperation
{
public:
LLUserOperation(const LLUUID& agent_id);
LLUserOperation(const LLUUID& agent_id, const LLUUID& transaction_id);
virtual ~LLUserOperation();
const LLUUID& getTransactionID() const { return mTransactionID; }
const LLUUID& getAgentID() const { return mAgentID; }
// Operation never got necessary data, so expired
virtual BOOL isExpired();
// ability to mark this operation as never expiring.
void SetNoExpireFlag(const BOOL flag);
// Send request to the dataserver
virtual void sendRequest() = 0;
// Run the operation. This will only be called in the case of an
// actual success or failure of the operation.
virtual BOOL execute(BOOL transaction_success) = 0;
// This method is called when the user op has expired, and is
// about to be deleted by the manager. This gives the user op the
// ability to nack someone when the user op is never evaluated
virtual void expire();
protected:
LLUserOperation();
protected:
LLUUID mAgentID;
LLUUID mTransactionID;
LLFrameTimer mTimer;
BOOL mNoExpire; // this is used for operations that expect an answer and will wait till it gets one.
};
class LLUserOperationMgr
{
public:
LLUserOperationMgr();
~LLUserOperationMgr();
void addOperation(LLUserOperation* op);
LLUserOperation* findOperation(const LLUUID& transaction_id);
BOOL deleteOperation(LLUserOperation* op);
// Call this method every once in a while to clean up old
// transactions.
void deleteExpiredOperations();
private:
typedef std::map<LLUUID, LLUserOperation*> user_operation_list_t;
user_operation_list_t mUserOperationList;
LLUUID mLastOperationConsidered;
};
extern LLUserOperationMgr* gUserOperationMgr;
#endif // LL_LLUSEROPERATION_H
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