result queue of class Connection replaced with notification functionality of class NetMessage.

src/ebusd/baseloop.cpp

@@ -85,10 +85,8 @@ void BaseLoop::start()
 
 		// send result to client
 		result += '\n';
-		Connection* connection = message->getConnection();
-		connection->addResult(NetMessage(result));
-
-		delete message;
+		message->setResult(result);
+		message->sendSignal();
 
 		// stop daemon
 		if (strcasecmp(data.c_str(), "STOP") == 0)

src/ebusd/connection.cpp

@@ -26,12 +26,6 @@ extern Logger& L;
 
 int Connection::m_sum = 0;
 
-void Connection::addResult(NetMessage message)
-{
-	NetMessage* tmp = new NetMessage(NetMessage(message));
-	m_netQueueResult.add(tmp);
-}
-
 void* Connection::run()
 {
 	m_running = true;
@@ -80,22 +74,21 @@ void* Connection::run()
 
 			// send data
 			data[datalen] = '\0';
-			m_netQueueData->add(new NetMessage(data, this));
+			NetMessage message(data);
+			m_netQueue->add(&message);
 
 			// wait for result
 			L.log(net, debug, "[%05d] wait for result", getID());
-			NetMessage* message = m_netQueueResult.remove();
+			message.waitSignal();
 
 			L.log(net, debug, "[%05d] result added", getID());
-			std::string result(message->getData());
+			std::string result = message.getResult();
 
 			if (m_socket->isValid() == true)
 				m_socket->send(result.c_str(), result.size());
 			else
 				break;
 
-			delete message;
-
 		}
 
 	}

src/ebusd/connection.h

@@ -31,9 +31,7 @@ class Connection : public Thread
 
 public:
 	Connection(TCPSocket* socket, WQueue<NetMessage*>* netQueue)
-		: m_socket(socket), m_netQueueData(netQueue), m_running(false) { m_sum++; m_id = m_sum;}
-
-	void addResult(NetMessage message);
+		: m_socket(socket), m_netQueue(netQueue), m_running(false) { m_sum++; m_id = m_sum;}
 
 	void* run();
 	void stop() const { m_notify.notify(); }
@@ -43,8 +41,7 @@ public:
 
 private:
 	TCPSocket* m_socket;
-	WQueue<NetMessage*>* m_netQueueData;
-	WQueue<NetMessage*> m_netQueueResult;
+	WQueue<NetMessage*>* m_netQueue;
 	Notify m_notify;
 	bool m_running;
 	int m_id;

src/ebusd/netmessage.h

@@ -35,16 +35,27 @@ public:
 	/**
 	 * @brief constructs a new instance with message and source client address.
 	 * @param data from client.
-	 * @param connection to return result to correct client.
 	 */
-	NetMessage(const std::string data, Connection* connection=NULL)
-		: m_data(data), m_connection(connection) {}
+	NetMessage(const std::string data) : m_data(data)
+	{
+		pthread_mutex_init(&m_mutex, NULL);
+		pthread_cond_init(&m_cond, NULL);
+	}
+
+	/**
+	 * @brief destructor.
+	 */
+	~NetMessage()
+	{
+		pthread_mutex_destroy(&m_mutex);
+		pthread_cond_destroy(&m_cond);
+	}
 
 	/**
 	 * @brief copy constructor.
 	 * @param src message object for copy.
 	 */
-	NetMessage(const NetMessage& src) : m_data(src.m_data), m_connection(src.m_connection) {}
+	NetMessage(const NetMessage& src) : m_data(src.m_data) {}
 
 	/**
 	 * @brief get the data string.
@@ -53,17 +64,52 @@ public:
 	std::string getData() const { return m_data; }
 
 	/**
-	 * @brief original connection.
-	 * @return pointer to connection.
+	 * @brief get the result string.
+	 * @return the result string.
 	 */
-	Connection* getConnection() const { return m_connection; }
+	std::string getResult() const { return m_result; }
+
+	/**
+	 * @brief set the result string.
+	 * @return the result string.
+	 */
+	void setResult(const std::string result) { m_result = result; }
+
+	/**
+	 * @brief wait on notification.
+	 */
+	void waitSignal()
+	{
+		pthread_mutex_lock(&m_mutex);
+
+		while (m_result.size() == 0)
+			pthread_cond_wait(&m_cond, &m_mutex);
+
+		pthread_mutex_unlock(&m_mutex);
+	}
+
+	/**
+	 * @brief send notification.
+	 */
+	void sendSignal()
+	{
+		pthread_mutex_lock(&m_mutex);
+		pthread_cond_signal(&m_cond);
+		pthread_mutex_unlock(&m_mutex);
+	}
 
 private:
-	/** the data/message string */
+	/** the data string */
 	std::string m_data;
 
-	/** the source connection */
-	Connection* m_connection;
+	/** the result string */
+	std::string m_result;
+
+	/** mutex variable for exclusive lock */
+	pthread_mutex_t m_mutex;
+
+	/** condition variable for exclusive lock */
+	pthread_cond_t m_cond;
 
 };