kernel - Fix deadlock in sound system
[dragonfly.git] / games / sail / machdep.h
blobe1cbb2082da43a9de00a3944dfd42794008d6686
1 /*-
2 * Copyright (c) 1983, 1993
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
29 * @(#)machdep.h 8.1 (Berkeley) 5/31/93
30 * $DragonFly: src/games/sail/machdep.h,v 1.2 2006/09/03 17:33:13 pavalos Exp $
33 #define TIMEOUT 300 /* Sync() timeout in seconds */
35 /* for POSIX systems */
36 #define blockalarm() \
37 do { \
38 sigset_t sigset; \
39 sigemptyset(&sigset); \
40 sigaddset(&sigset, SIGALRM); \
41 sigprocmask(SIG_BLOCK, &sigset, NULL); \
42 } while (0)
43 #define unblockalarm() \
44 do { \
45 sigset_t sigset; \
46 sigemptyset(&sigset); \
47 sigaddset(&sigset, SIGALRM); \
48 sigprocmask(SIG_UNBLOCK, &sigset, NULL); \
49 } while (0)