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2bd0ea18 | 1 | /* |
9911e5dc | 2 | * Copyright (c) 2000 Silicon Graphics, Inc. All Rights Reserved. |
2bd0ea18 NS |
3 | * |
4 | * This program is free software; you can redistribute it and/or modify it | |
5 | * under the terms of version 2 of the GNU General Public License as | |
6 | * published by the Free Software Foundation. | |
7 | * | |
8 | * This program is distributed in the hope that it would be useful, but | |
9 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. | |
11 | * | |
12 | * Further, this software is distributed without any warranty that it is | |
13 | * free of the rightful claim of any third person regarding infringement | |
14 | * or the like. Any license provided herein, whether implied or | |
15 | * otherwise, applies only to this software file. Patent licenses, if | |
16 | * any, provided herein do not apply to combinations of this program with | |
17 | * other software, or any other product whatsoever. | |
18 | * | |
19 | * You should have received a copy of the GNU General Public License along | |
20 | * with this program; if not, write the Free Software Foundation, Inc., 59 | |
21 | * Temple Place - Suite 330, Boston MA 02111-1307, USA. | |
22 | * | |
23 | * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy, | |
24 | * Mountain View, CA 94043, or: | |
25 | * | |
26 | * http://www.sgi.com | |
27 | * | |
28 | * For further information regarding this notice, see: | |
29 | * | |
30 | * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/ | |
31 | */ | |
32 | ||
33 | #include <libxfs.h> | |
34 | #include <signal.h> | |
35 | #include "sig.h" | |
36 | ||
37 | static int gotintr; | |
38 | static sigset_t intrset; | |
39 | ||
40 | static void | |
41 | interrupt(int sig, siginfo_t *info, void *uc) | |
42 | { | |
43 | gotintr = 1; | |
44 | } | |
45 | ||
46 | void | |
47 | blockint(void) | |
48 | { | |
49 | sigprocmask(SIG_BLOCK, &intrset, NULL); | |
50 | } | |
51 | ||
52 | void | |
53 | clearint(void) | |
54 | { | |
55 | gotintr = 0; | |
56 | } | |
57 | ||
58 | void | |
59 | init_sig(void) | |
60 | { | |
61 | struct sigaction sa; | |
62 | ||
63 | memset(&sa, 0, sizeof(sa)); | |
64 | sa.sa_sigaction = interrupt; | |
65 | sigaction(SIGINT, &sa, NULL); | |
66 | sigemptyset(&intrset); | |
67 | sigaddset(&intrset, SIGINT); | |
68 | } | |
69 | ||
70 | int | |
71 | seenint(void) | |
72 | { | |
73 | return gotintr; | |
74 | } | |
75 | ||
76 | void | |
77 | unblockint(void) | |
78 | { | |
79 | sigprocmask(SIG_UNBLOCK, &intrset, NULL); | |
80 | } |