/*
  *  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
  */
 
 #ifndef SIG_H
 #define SIG_H
 
 #include "status.h"
 #include "win32.h"
 
 /*
  * Signal information, including signal code
  * and descriptive text.
  */
 struct signal_info
 {
   volatile int signal_received;
   volatile bool hard;
   const char *signal_text;
 };
 
 #define IS_SIG(c) ((c)->sig->signal_received)
 
 struct context;
 
 extern struct signal_info siginfo_static;
 
 int parse_signal (const char *signame);
 const char *signal_name (const int sig, const bool upper);
 const char *signal_description (const int signum, const char *sigtext);
 void throw_signal (const int signum);

 void throw_signal_soft (const int signum, const char *signal_text);

 
 void pre_init_signal_catch (void);
 void post_init_signal_catch (void);

 void restore_signal_state (void);

 
 void print_signal (const struct signal_info *si, const char *title, int msglevel);
 void print_status (const struct context *c, struct status_output *so);
 
 void remap_signal (struct context *c);
 
 void signal_restart_status (const struct signal_info *si);
 
 bool process_signal (struct context *c);
 
 #ifdef ENABLE_OCC
 void process_explicit_exit_notification_timer_wakeup (struct context *c);
 #endif
 
 #ifdef WIN32
 
 static inline void
 get_signal (volatile int *sig)
 {
   *sig = win32_signal_get (&win32_signal);
 }
 
 static inline void
 halt_non_edge_triggered_signals (void)
 {
   win32_signal_close (&win32_signal);
 }
 
 #else
 
 static inline void
 get_signal (volatile int *sig)
 {
   const int i = siginfo_static.signal_received;
   if (i)
     *sig = i;
 }
 
 static inline void
 halt_non_edge_triggered_signals (void)
 {
 }
 
 #endif
 
 #endif