added: container LastContainer (lastcontainer.h lastcontainer.cpp)

it consists of last logged users
added: function 'last'


git-svn-id: svn://ttmath.org/publicrep/cmslu/trunk@492 e52654a7-88a9-db11-a3e9-0013d4bc506e

core/lastcontainer.h

@@ -0,0 +1,82 @@
+/*
+ * This file is a part of CMSLU -- Content Management System like Unix
+ * and is not publicly distributed
+ * 
+ * Copyright (c) 2009, Tomasz Sowa
+ * All rights reserved.
+ * 
+ */
+ 
+#ifndef headerfilelastcontainer33
+#define headerfilelastcontainer33
+
+#include <string>
+#include <list>
+#include <cstring>
+#include <ctime>
+
+#include "log.h"
+
+
+// how many items we store in the 'last' function
+#define LAST_TABLE_SIZE 100
+
+
+
+struct LastItem
+{
+	long user_id;
+	
+	// additional we store the whole string-name 
+	// (you can delete a user from the database but we can still print the name)
+	std::string name;
+	
+	// ip address
+	unsigned int ip;
+	
+	// session id (used when logging out)
+	long session_id;
+
+	// start logging and end logging
+	tm start;
+	tm end;
+
+
+	LastItem();
+	bool IsLoggedOut();
+
+};
+
+
+
+
+
+class LastContainer
+{
+public:
+
+	typedef std::list<LastItem> LastTab;
+	typedef LastTab::iterator Iterator;
+
+
+public:
+	
+	// !! nie potrzebny, skasowac po stworzeniu jednej biblioteki cmslu.a
+	// chwilowo bez tego wystepuja problemy z linkowaniem
+	LastContainer();
+		
+	Iterator Begin();
+	Iterator End();
+	void UserLogin(long user_id, const std::string & name, unsigned int ip, long session_id);
+	void UserLogout(long user_id, long session_id);
+         
+	
+private:
+
+	LastTab last_tab;
+	Iterator FindNotLoggedOut(long user_id, long session_id);
+
+};
+
+
+#endif