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/*
* This file is part of the Advance project.
*
* Copyright (C) 2002 Andrea Mazzoleni
*
* This program 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 2 of the License, or
* (at your option) any later version.
*
* 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; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "portable.h"
#include "siglock.h"
using namespace std;
#if HAVE_SIGHUP
static void (*sig_hup)(int);
#endif
#if HAVE_SIGQUIT
static void (*sig_quit)(int);
#endif
static void (*sig_int)(int);
static void (*sig_term)(int);
static int sig_ignore_sig;
void sig_ignore(int sig)
{
if (sig_ignore_sig == 0)
sig_ignore_sig = sig;
}
void sig_lock()
{
sig_ignore_sig = 0;
#if HAVE_SIGHUP
sig_hup = signal(SIGHUP, sig_ignore);
#endif
#if HAVE_SIGQUIT
sig_quit = signal(SIGQUIT, sig_ignore);
#endif
sig_int = signal(SIGINT, sig_ignore);
sig_term = signal(SIGTERM, sig_ignore);
}
void sig_unlock()
{
#if HAVE_SIGHUP
signal(SIGHUP, sig_hup);
#endif
#if HAVE_SIGQUIT
signal(SIGQUIT, sig_quit);
#endif
signal(SIGINT, sig_int);
signal(SIGTERM, sig_term);
if (sig_ignore_sig)
raise(sig_ignore_sig);
}
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