Update: Add Aggregate Gateway functions. #127

Signed-off-by: tomoaki <tomoaki@tomy-tech.com>

MQTTSNGateway/src/MQTTSNGWAggregateTopicTable.cpp

@@ -0,0 +1,161 @@
+/**************************************************************************************
+ * Copyright (c) 2018, Tomoaki Yamaguchi
+ *
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * and Eclipse Distribution License v1.0 which accompany this distribution.
+ *
+ * The Eclipse Public License is available at
+ *    http://www.eclipse.org/legal/epl-v10.html
+ * and the Eclipse Distribution License is available at
+ *   http://www.eclipse.org/org/documents/edl-v10.php.
+ *
+ * Contributors:
+ *    Tomoaki Yamaguchi - initial API and implementation and/or initial documentation
+ **************************************************************************************/
+#include "MQTTSNGWAggregateTopicTable.h"
+#include "MQTTSNGWClient.h"
+
+/*=====================================
+ Class ClientTopicElement
+ =====================================*/
+ClientTopicElement::ClientTopicElement(Client* client)
+{
+	_client = client;
+}
+
+ClientTopicElement::~ClientTopicElement()
+{
+
+}
+
+Client* ClientTopicElement::getClient(void)
+{
+	return _client;
+}
+
+/*=====================================
+ Class AggregateTopicElement
+ =====================================*/
+AggregateTopicElement::AggregateTopicElement(void)
+{
+
+}
+
+AggregateTopicElement::AggregateTopicElement(Topic* topic, Client* client)
+{
+	ClientTopicElement* elm = new ClientTopicElement(client);
+	if ( elm != nullptr )
+	{
+		_head = elm;
+		_tail = elm;
+	}
+}
+
+AggregateTopicElement::~AggregateTopicElement(void)
+{
+	_mutex.lock();
+	if ( _head != nullptr )
+	{
+		ClientTopicElement* p = _tail;
+		while ( p )
+		{
+			ClientTopicElement* pPrev = p;
+			delete p;
+			p = pPrev->_prev;
+		}
+		_head = _tail = nullptr;
+	}
+	_mutex.unlock();
+}
+
+ClientTopicElement* AggregateTopicElement::add(Client* client)
+{
+	ClientTopicElement* elm = new ClientTopicElement(client);
+	if ( elm == nullptr )
+	{
+		return nullptr;
+	}
+	_mutex.lock();
+	if ( _head == nullptr )
+	{
+		_head = elm;
+		_tail = elm;
+	}
+	else
+	{
+		ClientTopicElement* p = find(client);
+		if ( p == nullptr )
+		{
+			 p = _tail;
+			_tail = elm;
+			elm->_prev = p;
+			p->_next = elm;
+		}
+		else
+		{
+			delete elm;
+			elm = nullptr;
+		}
+	}
+	_mutex.unlock();
+	return elm;
+}
+
+ClientTopicElement* AggregateTopicElement::find(Client* client)
+{
+	ClientTopicElement* p = _head;
+	while ( p )
+	{
+		if ( p->_client == client)
+		{
+			break;
+		}
+		p = p->_next;
+	}
+	return p;
+}
+
+ClientTopicElement* AggregateTopicElement::getFirstElement(void)
+{
+	return _head;
+}
+
+ClientTopicElement* AggregateTopicElement::getNextElement(ClientTopicElement* elm)
+{
+	return elm->_next;
+}
+
+
+/*=====================================
+ Class AggregateTopicTable
+ ======================================*/
+
+AggregateTopicTable::AggregateTopicTable()
+{
+
+}
+
+AggregateTopicTable::~AggregateTopicTable()
+{
+
+}
+
+AggregateTopicElement* AggregateTopicTable::add(Topic* topic, Client* client)
+{
+	//ToDo: AggregateGW
+	return 0;
+}
+
+void AggregateTopicTable::remove(Topic* topic, Client* client)
+{
+	//ToDo: AggregateGW
+}
+
+AggregateTopicElement* AggregateTopicTable::getClientList(Topic* client)
+{
+	// ToDo: AggregateGW
+	return 0;
+}
+
+