1185029Spjd/*-
2185029Spjd * Copyright (c) 2008 Pawel Jakub Dawidek <pjd@FreeBSD.org>
3185029Spjd * All rights reserved.
4185029Spjd *
5185029Spjd * Redistribution and use in source and binary forms, with or without
6185029Spjd * modification, are permitted provided that the following conditions
7185029Spjd * are met:
8185029Spjd * 1. Redistributions of source code must retain the above copyright
9185029Spjd *    notice, this list of conditions and the following disclaimer.
10185029Spjd * 2. Redistributions in binary form must reproduce the above copyright
11185029Spjd *    notice, this list of conditions and the following disclaimer in the
12185029Spjd *    documentation and/or other materials provided with the distribution.
13185029Spjd *
14185029Spjd * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
15185029Spjd * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16185029Spjd * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17185029Spjd * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
18185029Spjd * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19185029Spjd * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20185029Spjd * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21185029Spjd * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22185029Spjd * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23185029Spjd * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24185029Spjd * SUCH DAMAGE.
25185029Spjd *
26185029Spjd * $FreeBSD$
27185029Spjd */
28185029Spjd
29185029Spjd#ifndef _OPENSOLARIS_SYS_SIG_H_
30185029Spjd#define	_OPENSOLARIS_SYS_SIG_H_
31185029Spjd
32185029Spjd#ifdef _KERNEL
33185029Spjd
34185029Spjd#include <sys/param.h>
35185029Spjd#include <sys/lock.h>
36185029Spjd#include <sys/mutex.h>
37185029Spjd#include <sys/proc.h>
38185029Spjd#include <sys/signalvar.h>
39185029Spjd#include <sys/debug.h>
40185029Spjd
41185029Spjd#define	FORREAL		0
42185029Spjd#define	JUSTLOOKING	1
43185029Spjd
44185029Spjdstatic __inline int
45185029Spjdissig(int why)
46185029Spjd{
47185029Spjd	struct thread *td = curthread;
48185029Spjd	struct proc *p;
49185029Spjd	int sig;
50185029Spjd
51185029Spjd	ASSERT(why == FORREAL || why == JUSTLOOKING);
52185029Spjd	if (SIGPENDING(td)) {
53185029Spjd		if (why == JUSTLOOKING)
54185029Spjd			return (1);
55185029Spjd		p = td->td_proc;
56185029Spjd		PROC_LOCK(p);
57185029Spjd		mtx_lock(&p->p_sigacts->ps_mtx);
58248470Sjhb		sig = cursig(td);
59185029Spjd		mtx_unlock(&p->p_sigacts->ps_mtx);
60185029Spjd		PROC_UNLOCK(p);
61185029Spjd		if (sig != 0)
62185029Spjd			return (1);
63185029Spjd	}
64185029Spjd	return (0);
65185029Spjd}
66185029Spjd
67185029Spjd#endif	/* _KERNEL */
68185029Spjd
69185029Spjd#endif	/* _OPENSOLARIS_SYS_SIG_H_ */
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