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quagga

    1: /* 
    2:  * Quagga Signal handling header.
    3:  *
    4:  * Copyright (C) 2004 Paul Jakma.
    5:  *
    6:  * This file is part of Quagga.
    7:  *
    8:  * Quagga is free software; you can redistribute it and/or modify it
    9:  * under the terms of the GNU General Public License as published by the
   10:  * Free Software Foundation; either version 2, or (at your option) any
   11:  * later version.
   12:  *
   13:  * Quagga is distributed in the hope that it will be useful, but
   14:  * WITHOUT ANY WARRANTY; without even the implied warranty of
   15:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   16:  * General Public License for more details.
   17:  *
   18:  * You should have received a copy of the GNU General Public License
   19:  * along with Quagga; see the file COPYING.  If not, write to the Free
   20:  * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
   21:  * 02111-1307, USA.  
   22:  */
   23: 
   24: #ifndef _QUAGGA_SIGNAL_H
   25: #define _QUAGGA_SIGNAL_H
   26: 
   27: #include <thread.h>
   28: 
   29: #define QUAGGA_SIGNAL_TIMER_INTERVAL 2L
   30: #define Q_SIGC(sig) (sizeof(sig)/sizeof(sig[0]))
   31: 
   32: struct quagga_signal_t
   33: {
   34:   int signal;                     /* signal number    */
   35:   void (*handler) (void);         /* handler to call  */
   36: 
   37:   volatile sig_atomic_t caught;   /* private member   */
   38: };
   39: 
   40: /* initialise sigevent system
   41:  * takes:
   42:  * - pointer to valid struct thread_master
   43:  * - number of elements in passed in signals array
   44:  * - array of quagga_signal_t's describing signals to handle
   45:  *   and handlers to use for each signal
   46:  */
   47: extern void signal_init (struct thread_master *m, int sigc, 
   48:                          struct quagga_signal_t *signals);
   49: 
   50: /* check whether there are signals to handle, process any found */
   51: extern int quagga_sigevent_process (void);
   52: 
   53: #endif /* _QUAGGA_SIGNAL_H */