sigprocmask.c revision 7be238fce69ba74b2163fc0ea898dfdc01a4aa22
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2009 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
#include <sys/sysmacros.h>
#include <sys/schedctl.h>
{
/*
* We don't need to acquire p->p_lock here;
* we are manipulating thread-private data.
*/
switch (how) {
case SIG_BLOCK:
break;
case SIG_UNBLOCK:
if (sigcheck(p, t))
t->t_sig_check = 1;
break;
case SIG_SETMASK:
if (sigcheck(p, t))
t->t_sig_check = 1;
break;
}
}
/*
* This system call is no longer called from libc.
* It exists solely for the benefit of statically-linked
* binaries from the past. It should be eliminated.
*/
int
{
/*
* User's oset and set might be the same address, so copyin first and
* save before copying out.
*/
if (setp) {
switch (how) {
case SIG_BLOCK:
case SIG_UNBLOCK:
case SIG_SETMASK:
break;
default:
}
} else {
/* none of SIG_BLOCK, SIG_UNBLOCK, SIG_SETMASK equals 0 */
how = 0;
sigemptyset(&kset);
}
if (osetp) {
}
return (0);
}