/* -*- c++ -*- */

/*

 * Copyright 2004 Free Software Foundation, Inc.

 * 

 * This file is part of GNU Radio

 * 

 * GNU Radio is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation; either version 3, or (at your option)

 * any later version.

 * 

 * GNU Radio 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 GNU Radio; see the file COPYING.  If not, write to

 * the Free Software Foundation, Inc., 51 Franklin Street,

 * Boston, MA 02110-1301, USA.

 */

#ifndef INCLUDED_GR_LOCAL_SIGHANDLER_H

#define INCLUDED_GR_LOCAL_SIGHANDLER_H

#ifdef HAVE_SIGNAL_H

#include <signal.h>

#endif

#include <string>

/*!

 * \brief Get and set signal handler.

 *

 * \ingroup internal

 * Constructor installs new handler, destructor reinstalls

 * original value.

 */

class gr_local_sighandler {

  int                        d_signum;

#ifdef HAVE_SIGACTION

  struct sigaction        d_old_action;

#endif

public:

  gr_local_sighandler (int signum, void (*new_handler)(int));

  ~gr_local_sighandler ();

  /* throw gr_signal (signum) */

  static void throw_signal (int signum);

};

/*!

 * \brief Representation of signal.

 */

class gr_signal

{

  int        d_signum;

public:

  gr_signal (int signum) : d_signum (signum) {}

  int signal () const { return d_signum; }

  std::string name () const;

};

#endif /* INCLUDED_GR_LOCAL_SIGHANDLER_H */