1/*-
2 * Copyright (c) 2008 Pawel Jakub Dawidek <pjd@FreeBSD.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * $FreeBSD$
27 */
28
29#ifndef _OPENSOLARIS_SYS_SIG_H_
30#define	_OPENSOLARIS_SYS_SIG_H_
31
32#ifdef _KERNEL
33
34#include <sys/param.h>
35#include <sys/lock.h>
36#include <sys/mutex.h>
37#include <sys/proc.h>
38#include <sys/signalvar.h>
39#include <sys/debug.h>
40
41#define	FORREAL		0
42#define	JUSTLOOKING	1
43
44static __inline int
45issig(int why)
46{
47	struct thread *td = curthread;
48	struct proc *p;
49	int sig;
50
51	ASSERT(why == FORREAL || why == JUSTLOOKING);
52	if (SIGPENDING(td)) {
53		if (why == JUSTLOOKING)
54			return (1);
55		p = td->td_proc;
56		PROC_LOCK(p);
57		mtx_lock(&p->p_sigacts->ps_mtx);
58		sig = cursig(td);
59		mtx_unlock(&p->p_sigacts->ps_mtx);
60		PROC_UNLOCK(p);
61		if (sig != 0)
62			return (1);
63	}
64	return (0);
65}
66
67#endif	/* _KERNEL */
68
69#endif	/* _OPENSOLARIS_SYS_SIG_H_ */
70