/*
 * Copyright (c) International Business Machines Corp., 2014
 *
 * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 */

/*
 *   File: signal.h
 * Author: Shaun Wetzstein <shaun@us.ibm.com>
 *  Descr: File descriptor activity callback signaler
 *   Note:
 *   Date: 10/03/10
 */

#ifndef __SIGNAL_H__
#define __SIGNAL_H__

#include <stdint.h>
#include <stdbool.h>

#include <sys/epoll.h>
#include <sys/signalfd.h>

#include "attribute.h"
#include "builtin.h"
#include "assert.h"

#include "tree.h"
#include "array.h"

/* ======================================================================= */

typedef struct signal signal_t;
typedef struct signalfd_siginfo signal_event_t;

struct signal {
	int fd;

	sigset_t mask;
	int flags;
};

/* ======================================================================= */

extern void signal_init(signal_t * self) __nonnull((1));
extern void signal_delete(signal_t * self) __nonnull((1));

extern int signal_fileno(signal_t * self) __nonnull((1));

extern int signal_setmask(signal_t * self, const sigset_t mask) __nonnull((1));

#if 0
#define signalfd_wait(...) STRCAT(signalfd_wait, NARGS(__VA_ARGS__))(__VA_ARGS__)
extern void signal_wait1(signal_t *) __nonnull((1));
extern void signal_wait2(_sisignal_tgnal *, int) __nonnull((1));
#endif

/* ======================================================================= */

#endif				/* __SIGNAL_H__ */