xref: /illumos-gate/usr/src/lib/librstp/common/choose.h (revision 55fea89d)
1 /************************************************************************
2  * RSTP library - Rapid Spanning Tree (802.1t, 802.1w)
3  * Copyright (C) 2001-2003 Optical Access
4  * Author: Alex Rozin
5  *
6  * This file is part of RSTP library.
7  *
8  * RSTP library is free software; you can redistribute it and/or modify it
9  * under the terms of the GNU Lesser General Public License as published by the
10  * Free Software Foundation; version 2.1
11  *
12  * RSTP library is distributed in the hope that it will be useful, but
13  * WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser
15  * General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public License
18  * along with RSTP library; see the file COPYING.  If not, write to the Free
19  * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
20  * 02111-1307, USA.
21  **********************************************************************/
22 
23 #ifndef _STP_CHOOSE_H__
24 #define _STP_CHOOSE_H__
25 
26 /* State machines states & debug tools. Sorry, if these are no readable enogth :( */
27 
28 #define CHOOSE(a) a
29 typedef enum STATES THE_STATE_T;
30 #undef CHOOSE
31 
GET_STATE_NAME(int state)32 char * GET_STATE_NAME (int state)
33 {
34 #define CHOOSE(a) #a
35 static char    *state_names[] = STATES;
36 #undef CHOOSE
37 
38   if (BEGIN == state) return "Begin";
39   return state_names[state];
40 }
41 
42 #endif /* _STP_CHOOSE_H__ */
43