usr/src/lib/librstp/common/choose.h

   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
  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__ */