/*
  *  OpenVPN -- An application to securely tunnel IP networks
  *             over a single TCP/UDP port, with support for SSL/TLS-based
  *             session authentication and key exchange,
  *             packet encryption, packet authentication, and
  *             packet compression.
  *

  *  Copyright (C) 2002-2010 OpenVPN Technologies, Inc. <sales@openvpn.net>

  *
  *  This program is free software; you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License version 2
  *  as published by the Free Software Foundation.
  *
  *  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 (see the file COPYING included with this
  *  distribution); if not, write to the Free Software Foundation, Inc.,
  *  59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
 
 #include "syshead.h"
 
 #include "interval.h"
 
 #include "memdbg.h"
 
 void
 interval_init (struct interval *top, int horizon, int refresh)
 {
   CLEAR (*top);
   top->refresh = refresh;
   top->horizon = horizon;
 }
 
 bool
 event_timeout_trigger (struct event_timeout *et,
 		       struct timeval *tv,
 		       const int et_const_retry)
 {
   bool ret = false;
   const time_t local_now = now;
 
   if (et->defined)
     {
       int wakeup = (int) et->last + et->n - local_now;
       if (wakeup <= 0)
 	{
 #if INTERVAL_DEBUG
 	  dmsg (D_INTERVAL, "EVENT event_timeout_trigger (%d) etcr=%d", et->n, et_const_retry);
 #endif
 	  if (et_const_retry < 0)
 	    {
 	      et->last = local_now;
 	      wakeup = et->n;
 	      ret = true;
 	    }
 	  else
 	    {
 	      wakeup = et_const_retry;
 	    }
 	}
 
       if (tv && wakeup < tv->tv_sec)
 	{
 #if INTERVAL_DEBUG
 	  dmsg (D_INTERVAL, "EVENT event_timeout_wakeup (%d/%d) etcr=%d", wakeup, et->n, et_const_retry);
 #endif
 	  tv->tv_sec = wakeup;
 	  tv->tv_usec = 0;
 	}
     }
   return ret;
 }