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diff --git a/src/base.h b/src/base.h
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+/*:*
+ *: File: ./src/base.h
+ *: 
+ *: yChat; Homepage: www.yChat.org; Version 0.5.6-BASIC
+ *: 
+ *: Copyright (C) 2003, 2004 Paul C. Buetow, Volker Richter
+ *: Copyright (C) 2005 EXA Digital Solutions GbR
+ *: 
+ *: This program is free software; you can redistribute it and/or
+ *: modify it under the terms of the GNU General Public License
+ *: as published by the Free Software Foundation; either version 2
+ *: of the License, or (at your option) any later version.
+ *: 
+ *: This program is distributed in the hope that it will be useful,
+ *: but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *: GNU General Public License for more details.
+ *: 
+ *: You should have received a copy of the GNU General Public License
+ *: along with this program; if not, write to the Free Software
+ *: Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ *:*/
+
+// template class data declaration;
+
+#ifndef BASE_H
+#define BASE_H
+
+#include "incl.h"
+#include "hmap.h"
+
+template<class type>
+class base
+{
+private:
+    hmap<type*,string>* map_elem;
+    pthread_mutex_t mut_map_elem;
+
+public:
+    base();
+    ~base();
+
+    virtual void  add_elem( type*   p_type );                // add a element.
+    virtual void  del_elem( string &s_name );                // delete a alement.
+    virtual type* get_elem( string &s_name, bool &b_found ); // get a element.
+
+    // execute func on all elements of map_elem. v_pointer is the argument.
+    virtual void  run_func( void (*func)(type*, void*), void* v_arg );
+
+    // chat::msg_post sends to all users of the system a message.
+    // room::msg_post sends to all users of the room a message.
+    // user::msg_post sends to the user a message.
+    void msg_post( string *s_msg )
+    {
+        run_func( &base<type>::msg_post_ , (void*)s_msg );
+    }
+    static void msg_post_( type* type_obj, void* v_arg )
+    {
+        string *p_msg    = (string*) v_arg;
+        type_obj -> msg_post( p_msg );
+    }
+
+    void get_data( map_string *p_map_string )
+    {
+        run_func( &base<type>::get_data_ , (void*)p_map_string );
+    }
+    static void get_data_( type* type_obj, void* v_arg )
+    {
+        map_string *map_params = (map_string*) v_arg;
+        type_obj -> get_data ( map_params );
+    }
+
+    // chat::get_user_list gets a list of all users of the system.
+    // room::get_user_list gets a list of all users of the room.
+    // user::get_user_list gets a "list" of a user <font color="usercolor">username</font>seperator
+    void get_user_list( string &s_list, string &s_seperator )
+    {
+
+        container c;
+        c.elem[0] = (void*) &s_list;
+        c.elem[1] = (void*) &s_seperator;
+
+        run_func( &base<type>::get_user_list_, (void*)&c );
+    }
+    static void get_user_list_( type* type_obj, void* v_arg )
+    {
+        container *c = (container*) v_arg;
+        type_obj -> get_user_list( *((string*)c->elem[0]), *((string*)c->elem[1]) );
+    }
+};
+
+#include "base.cpp"
+
+#endif