mpd/src/system/SignalFD.cxx

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/*
2017-01-03 20:48:59 +01:00
* Copyright 2003-2017 The Music Player Daemon Project
* http://www.musicpd.org
*
* 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "config.h"
#ifdef USE_SIGNALFD
#include "SignalFD.hxx"
#include "Error.hxx"
#include <assert.h>
#include <sys/signalfd.h>
void
SignalFD::Create(const sigset_t &mask)
{
if (!fd.CreateSignalFD(&mask))
throw MakeErrno("signalfd() failed");
}
int
SignalFD::Read()
{
assert(fd.IsDefined());
signalfd_siginfo info;
return fd.Read(&info, sizeof(info)) > 0
? info.ssi_signo
: -1;
}
#endif /* USE_SIGNALFD */