• broadcast_invitation_tread() : chatserver.h
• connect_to_server() : chatclient.h
• create_tcp_server_socket() : chatserver.h
• get_message_type() : chatclient.h , chatserver.h
• handle_client_connection_thread() : chatserver.h
• handle_incoming_connections() : chatserver.h
• handle_login_message() : chatserver.h
• handle_logout_message() : chatserver.h
• handle_text_message() : chatserver.h
• print_stats_counters_thread() : chatserver.h
• send_back_error_message() : chatserver.h
• send_to_client_online_users() : chatserver.h