Imported existing code

indra/llmessage/lluseroperation.cpp

@@ -0,0 +1,196 @@
+/** 
+ * @file lluseroperation.cpp
+ * @brief LLUserOperation class definition.
+ *
+ * $LicenseInfo:firstyear=2002&license=viewergpl$
+ * 
+ * Copyright (c) 2002-2009, 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 "lluseroperation.h"
+
+///----------------------------------------------------------------------------
+/// Local function declarations, constants, enums, and typedefs
+///----------------------------------------------------------------------------
+
+LLUserOperationMgr* gUserOperationMgr = NULL;
+
+///----------------------------------------------------------------------------
+/// Class LLUserOperation
+///----------------------------------------------------------------------------
+
+LLUserOperation::LLUserOperation(const LLUUID& agent_id)
+:	mAgentID(agent_id),
+	mTimer(),
+	mNoExpire(FALSE)
+{
+	mTransactionID.generate();
+}
+
+LLUserOperation::LLUserOperation(const LLUUID& agent_id,
+								 const LLUUID& transaction_id) :
+	mAgentID(agent_id),
+	mTransactionID(transaction_id),
+	mTimer(),
+	mNoExpire(FALSE)
+{
+}
+
+// protected constructor which is used by base classes that determine
+// transaction, agent, et. after construction.
+LLUserOperation::LLUserOperation() :
+	mTimer(),
+	mNoExpire(FALSE)
+{
+}
+
+LLUserOperation::~LLUserOperation()
+{
+}
+
+void LLUserOperation::SetNoExpireFlag(const BOOL flag)
+{
+	mNoExpire = flag;
+}
+
+BOOL LLUserOperation::isExpired()
+{
+	if (!mNoExpire)
+	{
+		const F32 EXPIRE_TIME_SECS = 10.f;
+		return mTimer.getElapsedTimeF32() > EXPIRE_TIME_SECS;
+	}
+	return FALSE;
+}
+
+void LLUserOperation::expire()
+{
+	// by default, do do anything.
+}
+
+///----------------------------------------------------------------------------
+/// Class LLUserOperationMgr
+///----------------------------------------------------------------------------
+
+LLUserOperationMgr::LLUserOperationMgr()
+{
+}
+
+
+LLUserOperationMgr::~LLUserOperationMgr()
+{
+	if (mUserOperationList.size() > 0)
+	{
+		llwarns << "Exiting with user operations pending." << llendl;
+	}
+}
+
+
+void LLUserOperationMgr::addOperation(LLUserOperation* op)
+{
+	if(!op)
+	{
+		llwarns << "Tried to add null op" << llendl;
+		return;
+	}
+	LLUUID id = op->getTransactionID();
+	llassert(mUserOperationList.count(id) == 0);
+	mUserOperationList[id] = op;
+}
+
+
+LLUserOperation* LLUserOperationMgr::findOperation(const LLUUID& tid)
+{
+	user_operation_list_t::iterator iter = mUserOperationList.find(tid);
+	if (iter != mUserOperationList.end())
+		return iter->second;
+	else
+		return NULL;
+}
+
+
+BOOL LLUserOperationMgr::deleteOperation(LLUserOperation* op)
+{
+	size_t rv = 0;
+	if(op)
+	{
+		LLUUID id = op->getTransactionID();
+		rv = mUserOperationList.erase(id);
+		delete op;
+		op = NULL;
+	}
+	return rv ? TRUE : FALSE;
+}
+
+void LLUserOperationMgr::deleteExpiredOperations()
+{
+	const S32 MAX_OPS_CONSIDERED = 2000;
+	S32 ops_left = MAX_OPS_CONSIDERED;
+	LLUserOperation* op = NULL;
+	user_operation_list_t::iterator it;
+	if(mLastOperationConsidered.isNull())
+	{
+		it = mUserOperationList.begin();
+	}
+	else
+	{
+		it = mUserOperationList.lower_bound(mLastOperationConsidered);
+	}
+	while((ops_left--) && (it != mUserOperationList.end()))
+	{
+		op = (*it).second;
+		if(op && op->isExpired())
+		{
+			lldebugs << "expiring: " << (*it).first << llendl;
+			op->expire();
+			mUserOperationList.erase(it++);
+			delete op;
+		}
+		else if(op)
+		{
+			++it;
+		}
+		else
+		{
+			mUserOperationList.erase(it++);
+		}
+	}
+	if(it != mUserOperationList.end())
+	{
+		mLastOperationConsidered = (*it).first;
+	}
+	else
+	{
+		mLastOperationConsidered.setNull();
+	}
+}
+
+
+///----------------------------------------------------------------------------
+/// Local function definitions
+///----------------------------------------------------------------------------