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/**
* @file lluseroperation.h
* @brief LLUserOperation class header file - used for message based
* transaction. For example, L$ transactions.
*
* $LicenseInfo:firstyear=2002&license=viewerlgpl$
* 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_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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