2 * Empire - A multi-player, client/server Internet based war game.
3 * Copyright (C) 1986-2020, Dave Pare, Jeff Bailey, Thomas Ruschak,
4 * Ken Stevens, Steve McClure, Markus Armbruster
6 * Empire is free software: you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation, either version 3 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program. If not, see <http://www.gnu.org/licenses/>.
21 * See files README, COPYING and CREDITS in the root of the source
22 * tree for related information and legal notices. It is expected
23 * that future projects/authors will amend these files as needed.
27 * posix.c: Thread-related code common to POSIX systems
29 * Known contributors to this file:
30 * Markus Armbruster, 2006
37 #include "empthread.h"
39 #include "prototypes.h"
41 static void panic(int sig);
44 empth_init_signals(void)
49 sigemptyset(&act.sa_mask);
50 act.sa_handler = panic;
51 sigaction(SIGBUS, &act, NULL);
52 sigaction(SIGSEGV, &act, NULL);
53 sigaction(SIGILL, &act, NULL);
54 sigaction(SIGFPE, &act, NULL);
55 act.sa_handler = SIG_IGN;
56 sigaction(SIGPIPE, &act, NULL);
59 /* we're going down. try to close the files at least */
66 sigemptyset(&act.sa_mask);
67 act.sa_handler = SIG_DFL;
68 sigaction(SIGBUS, &act, NULL);
69 sigaction(SIGSEGV, &act, NULL);
70 sigaction(SIGILL, &act, NULL);
71 sigaction(SIGFPE, &act, NULL);
74 * This code calls functions that are not safe to call from a
75 * signal handler! That could probably be rectified with some
76 * effort. However, we're already in a bad state. Is it wise to
77 * flush that state to disk, possibly overwriting good state?
78 * FIXME make the code safe as far as practical
80 logerror("server received fatal signal %d", sig);
84 /* End of unsafe code */
86 if (CANT_HAPPEN(sig != SIGBUS && sig != SIGSEGV
87 && sig != SIGILL && sig != SIGFPE))