source: trunk-3.0/source/lib/signal.c@ 102

Last change on this file since 102 was 1, checked in by Paul Smedley, 19 years ago

Initial code import

File size: 4.0 KB
Line 
1/*
2 Unix SMB/CIFS implementation.
3 signal handling functions
4
5 Copyright (C) Andrew Tridgell 1998
6
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
11
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20*/
21
22#include "includes.h"
23
24/****************************************************************************
25 Catch child exits and reap the child zombie status.
26****************************************************************************/
27
28static void sig_cld(int signum)
29{
30 while (sys_waitpid((pid_t)-1,(int *)NULL, WNOHANG) > 0)
31 ;
32
33 /*
34 * Turns out it's *really* important not to
35 * restore the signal handler here if we have real POSIX
36 * signal handling. If we do, then we get the signal re-delivered
37 * immediately - hey presto - instant loop ! JRA.
38 */
39
40#if !defined(HAVE_SIGACTION)
41 CatchSignal(SIGCLD, sig_cld);
42#endif