99e82a2ef2
Identifiers with two leading underscores are reserved for the C compiler's internal use. Don't use them in the source.
59 lines
1.5 KiB
C
59 lines
1.5 KiB
C
/* the Music Player Daemon (MPD)
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* Copyright (C) 2003-2007 by Warren Dukes (warren.dukes@gmail.com)
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* (c)2004 by mackstann
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* This project's homepage is: http://www.musicpd.org
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "signal_check.h"
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#include "os_compat.h"
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static volatile sig_atomic_t caught_signals[NSIG];
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static void mpd_signal_handler(int sig)
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{
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caught_signals[sig] = 1;
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}
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static void set_signal_handler(int sig, void (*handler) (int))
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{
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struct sigaction act;
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act.sa_flags = 0;
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sigemptyset(&act.sa_mask);
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act.sa_handler = handler;
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while (sigaction(sig, &act, NULL) && errno == EINTR) ;
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}
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void signal_handle(int sig)
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{
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set_signal_handler(sig, mpd_signal_handler);
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}
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void signal_unhandle(int sig)
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{
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signal_clear(sig);
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set_signal_handler(sig, SIG_DFL);
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}
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int signal_is_pending(int sig)
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{
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return caught_signals[sig];
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}
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void signal_clear(int sig)
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{
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caught_signals[sig] = 0;
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}
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