1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate * CDDL HEADER START
3*0Sstevel@tonic-gate *
4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the
5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only
6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance
7*0Sstevel@tonic-gate * with the License.
8*0Sstevel@tonic-gate *
9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
11*0Sstevel@tonic-gate * See the License for the specific language governing permissions
12*0Sstevel@tonic-gate * and limitations under the License.
13*0Sstevel@tonic-gate *
14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
19*0Sstevel@tonic-gate *
20*0Sstevel@tonic-gate * CDDL HEADER END
21*0Sstevel@tonic-gate */
22*0Sstevel@tonic-gate /*
23*0Sstevel@tonic-gate * Copyright (c) 1999 by Sun Microsystems, Inc.
24*0Sstevel@tonic-gate * All rights reserved.
25*0Sstevel@tonic-gate */
26*0Sstevel@tonic-gate
27*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI"
28*0Sstevel@tonic-gate
29*0Sstevel@tonic-gate #include <stdio.h>
30*0Sstevel@tonic-gate #include <stdlib.h>
31*0Sstevel@tonic-gate #include <string.h>
32*0Sstevel@tonic-gate #include <signal.h>
33*0Sstevel@tonic-gate #include <unistd.h>
34*0Sstevel@tonic-gate #include <fcode/private.h>
35*0Sstevel@tonic-gate
36*0Sstevel@tonic-gate /*
37*0Sstevel@tonic-gate * 'user-abort' Fcode
38*0Sstevel@tonic-gate */
39*0Sstevel@tonic-gate void
user_abort(fcode_env_t * env)40*0Sstevel@tonic-gate user_abort(fcode_env_t *env)
41*0Sstevel@tonic-gate {
42*0Sstevel@tonic-gate forth_abort(env, "user-abort called");
43*0Sstevel@tonic-gate }
44*0Sstevel@tonic-gate
45*0Sstevel@tonic-gate static fstack_t alarm_xt;
46*0Sstevel@tonic-gate static fstack_t alarm_ms;
47*0Sstevel@tonic-gate static fcode_env_t *alarm_env;
48*0Sstevel@tonic-gate
49*0Sstevel@tonic-gate static void
catch_alarm(int signo)50*0Sstevel@tonic-gate catch_alarm(int signo)
51*0Sstevel@tonic-gate {
52*0Sstevel@tonic-gate fcode_env_t *env = alarm_env;
53*0Sstevel@tonic-gate
54*0Sstevel@tonic-gate if (env && alarm_xt && alarm_ms) {
55*0Sstevel@tonic-gate PUSH(DS, alarm_xt);
56*0Sstevel@tonic-gate execute(env);
57*0Sstevel@tonic-gate signal(SIGALRM, catch_alarm);
58*0Sstevel@tonic-gate alarm((alarm_ms + 999)/1000);
59*0Sstevel@tonic-gate }
60*0Sstevel@tonic-gate }
61*0Sstevel@tonic-gate
62*0Sstevel@tonic-gate /*
63*0Sstevel@tonic-gate * 'alarm' Fcode
64*0Sstevel@tonic-gate */
65*0Sstevel@tonic-gate void
do_alarm(fcode_env_t * env)66*0Sstevel@tonic-gate do_alarm(fcode_env_t *env)
67*0Sstevel@tonic-gate {
68*0Sstevel@tonic-gate fstack_t ms, xt;
69*0Sstevel@tonic-gate
70*0Sstevel@tonic-gate CHECK_DEPTH(env, 2, "alarm");
71*0Sstevel@tonic-gate ms = POP(DS);
72*0Sstevel@tonic-gate xt = POP(DS);
73*0Sstevel@tonic-gate if (ms == 0) {
74*0Sstevel@tonic-gate alarm(0);
75*0Sstevel@tonic-gate signal(SIGALRM, SIG_DFL);
76*0Sstevel@tonic-gate alarm_xt = 0;
77*0Sstevel@tonic-gate alarm_ms = 0;
78*0Sstevel@tonic-gate alarm_env = 0;
79*0Sstevel@tonic-gate } else {
80*0Sstevel@tonic-gate signal(SIGALRM, catch_alarm);
81*0Sstevel@tonic-gate alarm_xt = xt;
82*0Sstevel@tonic-gate alarm_ms = ms;
83*0Sstevel@tonic-gate alarm_env = env;
84*0Sstevel@tonic-gate alarm((ms + 999)/1000);
85*0Sstevel@tonic-gate }
86*0Sstevel@tonic-gate }
87*0Sstevel@tonic-gate
88*0Sstevel@tonic-gate #pragma init(_init)
89*0Sstevel@tonic-gate
90*0Sstevel@tonic-gate static void
_init(void)91*0Sstevel@tonic-gate _init(void)
92*0Sstevel@tonic-gate {
93*0Sstevel@tonic-gate fcode_env_t *env = initial_env;
94*0Sstevel@tonic-gate
95*0Sstevel@tonic-gate ASSERT(env);
96*0Sstevel@tonic-gate NOTICE;
97*0Sstevel@tonic-gate
98*0Sstevel@tonic-gate P1275(0x213, 0, "alarm", do_alarm);
99*0Sstevel@tonic-gate
100*0Sstevel@tonic-gate P1275(0x219, 0, "user-abort", user_abort);
101*0Sstevel@tonic-gate }
102