17c478bd9Sstevel@tonic-gate /*
27c478bd9Sstevel@tonic-gate * CDDL HEADER START
37c478bd9Sstevel@tonic-gate *
47c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the
57c478bd9Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only
67c478bd9Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance
77c478bd9Sstevel@tonic-gate * with the License.
87c478bd9Sstevel@tonic-gate *
97c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
107c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
117c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions
127c478bd9Sstevel@tonic-gate * and limitations under the License.
137c478bd9Sstevel@tonic-gate *
147c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
157c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
167c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
177c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
187c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
197c478bd9Sstevel@tonic-gate *
207c478bd9Sstevel@tonic-gate * CDDL HEADER END
217c478bd9Sstevel@tonic-gate */
227c478bd9Sstevel@tonic-gate /*
237c478bd9Sstevel@tonic-gate * Copyright (c) 2000 by Sun Microsystems, Inc.
247c478bd9Sstevel@tonic-gate * All rights reserved.
257c478bd9Sstevel@tonic-gate */
267c478bd9Sstevel@tonic-gate
277c478bd9Sstevel@tonic-gate #include <signal.h>
287c478bd9Sstevel@tonic-gate #include <thread.h>
297c478bd9Sstevel@tonic-gate #include <unistd.h>
307c478bd9Sstevel@tonic-gate #include <errno.h>
317c478bd9Sstevel@tonic-gate
327c478bd9Sstevel@tonic-gate #include "sysevent_signal.h"
337c478bd9Sstevel@tonic-gate
347c478bd9Sstevel@tonic-gate static se_signal_f *sig_handlers[NSIG];
357c478bd9Sstevel@tonic-gate static void *sig_data[NSIG];
367c478bd9Sstevel@tonic-gate
377c478bd9Sstevel@tonic-gate static void
sig_stub(int sig,siginfo_t * sip,void * ucp)387c478bd9Sstevel@tonic-gate sig_stub(int sig, siginfo_t *sip, void *ucp)
397c478bd9Sstevel@tonic-gate {
407c478bd9Sstevel@tonic-gate sig_handlers[sig](sig, sip, (ucontext_t *)ucp, sig_data[sig]);
417c478bd9Sstevel@tonic-gate }
427c478bd9Sstevel@tonic-gate
437c478bd9Sstevel@tonic-gate int
se_signal_sethandler(int sig,se_signal_f * handler,void * data)447c478bd9Sstevel@tonic-gate se_signal_sethandler(int sig, se_signal_f *handler, void *data)
457c478bd9Sstevel@tonic-gate {
467c478bd9Sstevel@tonic-gate struct sigaction act;
477c478bd9Sstevel@tonic-gate int status;
487c478bd9Sstevel@tonic-gate
497c478bd9Sstevel@tonic-gate sig_handlers[sig] = handler;
507c478bd9Sstevel@tonic-gate sig_data[sig] = data;
517c478bd9Sstevel@tonic-gate
52*30699046SRichard Lowe if (handler == SE_SIG_DFL) {
53*30699046SRichard Lowe act.sa_handler = SIG_DFL;
54*30699046SRichard Lowe act.sa_flags = SA_RESTART;
55*30699046SRichard Lowe } else if (handler == SE_SIG_IGN) {
56*30699046SRichard Lowe act.sa_handler = SIG_IGN;
577c478bd9Sstevel@tonic-gate act.sa_flags = SA_RESTART;
587c478bd9Sstevel@tonic-gate } else {
597c478bd9Sstevel@tonic-gate act.sa_sigaction = sig_stub;
607c478bd9Sstevel@tonic-gate act.sa_flags = SA_SIGINFO | SA_RESTART;
617c478bd9Sstevel@tonic-gate }
627c478bd9Sstevel@tonic-gate
637c478bd9Sstevel@tonic-gate (void) sigfillset(&act.sa_mask);
647c478bd9Sstevel@tonic-gate
657c478bd9Sstevel@tonic-gate if ((status = sigaction(sig, &act, NULL)) == 0)
667c478bd9Sstevel@tonic-gate (void) se_signal_unblock(sig);
677c478bd9Sstevel@tonic-gate
687c478bd9Sstevel@tonic-gate return (status);
697c478bd9Sstevel@tonic-gate }
707c478bd9Sstevel@tonic-gate
717c478bd9Sstevel@tonic-gate int
se_signal_unblock(int sig)727c478bd9Sstevel@tonic-gate se_signal_unblock(int sig)
737c478bd9Sstevel@tonic-gate {
747c478bd9Sstevel@tonic-gate sigset_t set;
757c478bd9Sstevel@tonic-gate
767c478bd9Sstevel@tonic-gate (void) sigemptyset(&set);
777c478bd9Sstevel@tonic-gate (void) sigaddset(&set, sig);
787c478bd9Sstevel@tonic-gate
797c478bd9Sstevel@tonic-gate return (thr_sigsetmask(SIG_UNBLOCK, &set, NULL));
807c478bd9Sstevel@tonic-gate }
817c478bd9Sstevel@tonic-gate
827c478bd9Sstevel@tonic-gate int
se_signal_blockall(void)837c478bd9Sstevel@tonic-gate se_signal_blockall(void)
847c478bd9Sstevel@tonic-gate {
857c478bd9Sstevel@tonic-gate sigset_t set;
867c478bd9Sstevel@tonic-gate
877c478bd9Sstevel@tonic-gate (void) sigfillset(&set);
887c478bd9Sstevel@tonic-gate return (thr_sigsetmask(SIG_BLOCK, &set, NULL));
897c478bd9Sstevel@tonic-gate }
907c478bd9Sstevel@tonic-gate
917c478bd9Sstevel@tonic-gate int
se_signal_unblockall(void)927c478bd9Sstevel@tonic-gate se_signal_unblockall(void)
937c478bd9Sstevel@tonic-gate {
947c478bd9Sstevel@tonic-gate sigset_t set;
957c478bd9Sstevel@tonic-gate
967c478bd9Sstevel@tonic-gate (void) sigfillset(&set);
977c478bd9Sstevel@tonic-gate return (thr_sigsetmask(SIG_UNBLOCK, &set, NULL));
987c478bd9Sstevel@tonic-gate }
99