diff --git a/classes/logstream.class.php b/classes/logstream.class.php
index 395d3f9..527eb1b 100644
--- a/classes/logstream.class.php
+++ b/classes/logstream.class.php
@@ -137,6 +137,18 @@ abstract class LogStream {
 	* @return integer Error state
 	*/
 	public abstract function Sseek(&$uID, $mode, $numrecs);
+
+
+	/**
+	* If you are interested in how many messages are in the stream, call this method.
+	* But be aware of that some stream can not provide a message count. This is probably
+	* because of performance reason or any other. However, if GetMessageCount return -1
+	* this does not mean that there is no message in the stream, it is just not countable.
+	* If there is no message 0 will be returned.
+	*
+	* @return integer Amount of messages within the stream. -1 means that no count is available.
+	*/
+	public abstract function GetMessageCount();
 }
 
 
diff --git a/classes/logstreamdisk.class.php b/classes/logstreamdisk.class.php
index b9a931c..e79ed14 100644
--- a/classes/logstreamdisk.class.php
+++ b/classes/logstreamdisk.class.php
@@ -378,6 +378,17 @@ class LogStreamDisk extends LogStream {
 		return SUCCESS;	
 	}
 
+	/**
+	* GetMessageCount will always return -1 which means
+	* that the message count is not available. We refuse
+	* the request of the message count due to a count would
+	* require to read the whole file which would be a big 
+	* pain if the file is e.g. 1 gb.
+	*/
+	public function GetMessageCount() {
+		return -1;
+	}
+
 	/**
 	* Set the direction the stream should read data.
 	*