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/*
* Copyright (C) 2003-2015 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.
*/
#ifndef MPD_SIGNAL_FD_HXX
#define MPD_SIGNAL_FD_HXX
#include "check.h"
#include "FileDescriptor.hxx"
#include <signal.h>
/**
* A class that wraps signalfd().
*/
class SignalFD {
FileDescriptor fd;
public:
SignalFD():fd(-1) {}
~SignalFD() {
Close();
}
SignalFD(const SignalFD &other) = delete;
SignalFD &operator=(const SignalFD &other) = delete;
/**
* Create the signalfd or update its mask.
*
* All errors are fatal.
*/
void Create(const sigset_t &mask);
void Close();
int Get() const {
return fd.Get();
}
/**
* Read the next signal from the file descriptor. Returns the
* signal number on success or -1 if there are no more
* signals.
*/
int Read();
};
#endif
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