only support a single LogSink in Logger, added hasSink() and setAreaMask() and setLevel() to Logger

src/ebusd/baseloop.cpp

@@ -460,13 +460,13 @@ string BaseLoop::decodeMessage(const string& data)
 		}
 
 		if (strcasecmp(args[argPos].c_str(), "AREAS") == 0) {
-			L.getSink(0)->setAreaMask(calcAreaMask(args[argPos + 1]));
+			L.setAreaMask(calcAreaMask(args[argPos + 1]));
 			result << "done";
 			break;
 		}
 
 		if (strcasecmp(args[argPos].c_str(), "LEVEL") == 0) {
-			L.getSink(0)->setLevel(calcLevel(args[argPos + 1]));
+			L.setLevel(calcLevel(args[argPos + 1]));
 			result << "done";
 			break;
 		}

src/lib/utils/logger.cpp

@@ -152,34 +152,50 @@ Logger& Logger::Instance()
 
 Logger::~Logger()
 {
-	while (m_sinks.empty() == false)
-		*this -= *(m_sinks.begin());
+	if (m_sink != NULL) {
+		delete m_sink;
+		m_sink = NULL;
+	}
 }
 
 Logger& Logger::operator+=(LogSink* sink)
 {
-	sinkCI_t itEnd = m_sinks.end();
-	sinkCI_t it = find(m_sinks.begin(), itEnd, sink);
-
-	if (it == itEnd)
-		m_sinks.push_back(sink);
-
-	return (*this);
+	if (m_sink != NULL)
+		delete m_sink;
+	m_sink = sink;
+	return *this;
 }
 
 Logger& Logger::operator-=(const LogSink* sink)
 {
-	sinkCI_t itEnd = m_sinks.end();
-	sinkCI_t it = find(m_sinks.begin(), itEnd, sink);
+	if (sink != NULL && sink == m_sink) {
+		delete m_sink;
+		m_sink = NULL;
+	}
+	return *this;
+}
 
-	if (it == itEnd)
-		return (*this);
+void Logger::setAreaMask(const int& areaMask)
+{
+	if (m_sink != NULL)
+		m_sink->setAreaMask(areaMask);
+}
 
-	m_sinks.erase(it);
+void Logger::setLevel(const int& level)
+{
+	if (m_sink != NULL)
+		m_sink->setLevel(level);
+}
 
-	delete (sink);
-
-	return (*this);
+bool Logger::hasSink(const int area, const int level)
+{
+	if (m_sink != NULL) {
+		if (((m_sink->getAreaMask() & (1 << area)) != 0
+		&& m_sink->getLevel() >= level)) {
+			return true;
+		}
+	}
+	return false;
 }
 
 void Logger::log(const int area, const int level, const string& data, ...)
@@ -207,19 +223,12 @@ void Logger::log(const int area, const int level, const string& data, ...)
 void Logger::handleMessage(LogMessage* message) {
 	if (message == NULL)
 		return;
-
-	sinkCI_t iter = m_sinks.begin();
-
-	for (; iter != m_sinks.end(); ++iter) {
-		if (*iter != 0) {
-
-			if ((((*iter)->getAreaMask() & (1 << message->getArea())) != 0
-			&& (*iter)->getLevel() >= message->getLevel())) {
-				(*iter)->addMessage(*message);
-			}
+	if (m_sink != NULL) {
+		if (((m_sink->getAreaMask() & (1 << message->getArea())) != 0
+		&& m_sink->getLevel() >= message->getLevel())) {
+			m_sink->addMessage(*message);
 		}
 	}
-
 	delete message;
 }
 

src/lib/utils/logger.h

@@ -280,19 +280,39 @@ public:
 	virtual ~Logger();
 
 	/**
-	 * @brief adds a logging sink and returns the reference to logger.
-	 * @param sink the used logging sink.
-	 * @return the reference to logger.
+	 * @brief Add a @a LogSink.
+	 * @param sink the used @a LogSink.
+	 * @return the reference to this @a Logger.
 	 */
 	Logger& operator+=(LogSink* sink);
 
 	/**
-	 * @brief removes a logging sink and returns the reference to logger.
-	 * @param sink the used logging sink.
-	 * @return the reference to logger.
+	 * @brief Remove a @a LogSink and delete it.
+	 * @param sink the used @a LogSink.
+	 * @return the reference to this @a Logger.
 	 */
 	Logger& operator-=(const LogSink* sink);
 
+	/**
+	 * @brief Set the logging area mask on all @a LogSink instances.
+	 * @param areaMask the logging area mask.
+	 */
+	void setAreaMask(const int& areaMask);
+
+	/**
+	 * @brief Set the logging level on all @a LogSink instances.
+	 * @param level the logging level.
+	 */
+	void setLevel(const int& level);
+
+	/**
+	 * @brief Return whether a @a LogSink is available that will produce output for the specified area and level.
+	 * @param area the logging area of the message.
+	 * @param level the logging level of the message.
+	 * @return whether a @a LogSink is available that will produce output for the specified area and level.
+	 */
+	bool hasSink(const int area, const int level);
+
 	/**
 	 * @brief creates a logging message and add them to internal message queue.
 	 * @param area the logging area of the message.
@@ -302,13 +322,6 @@ public:
 	 */
 	void log(const int area, const int level, const string& text, ...);
 
-	/**
-	 * @brief returns the sink at the specified index.
-	 * @param index the index of the sink to return.
-	 * @return the sink at the specified index.
-	 */
-	LogSink* getSink(const int index) const { return(m_sinks[index]); }
-
 	//@copydoc
 	virtual bool start(const char* name);
 
@@ -322,12 +335,12 @@ protected:
 
 private:
 	/**
-	 * @brief private construtor.
+	 * @brief private constructor.
 	 */
-	Logger() : m_direct(true) {}
+	Logger() : m_direct(true), m_sink(NULL) {}
 
 	/**
-	 * @brief private copy construtor.
+	 * @brief private copy constructor.
 	 * @param reference to an instance.
 	 */
 	Logger(const Logger&);
@@ -345,19 +358,13 @@ private:
 	 */
 	void handleMessage(LogMessage* message);
 
-	/** typedefs for a vector of type LogSink* */
-	typedef vector<LogSink*> sink_t;
-
-	/** typedefs for a vector of type LogSink* iterator */
-	typedef vector<LogSink*>::iterator sinkCI_t;
-
 	/** true to directly log to all sinks, false to buffer via @a m_logQueue. */
 	bool m_direct;
 
-	/** vector of available logging sinks */
-	sink_t m_sinks;
+	/** the used @a LogSink, or NULL. */
+	LogSink* m_sink;
 
-	/** queue for logging messages */
+	/** queue for logging messages. */
 	WQueue<LogMessage*> m_logQueue;
 
 };