2 * Empire - A multi-player, client/server Internet based war game.
3 * Copyright (C) 1986-2000, Dave Pare, Jeff Bailey, Thomas Ruschak,
4 * Ken Stevens, Steve McClure
6 * This program 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 2 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, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 * See the "LEGAL", "LICENSE", "CREDITS" and "README" files for all the
23 * related information and legal notices. It is expected that any future
24 * projects/authors will amend these files as needed.
30 * Known contributors to this file:
46 #if !defined(L_SET) && !defined(_WIN32)
55 #include <sys/locking.h>
60 if (_locking(fd, _LK_LOCK, 0) < 0) {
61 logerror("file lock (fd %d) failed", fd);
70 if (_locking(fd, _LK_UNLCK, 0) < 0) {
71 logerror("file lock (fd %d) failed", fd);
86 if (flock(fd, LOCK_EX) < 0) {
87 logerror("file lock (fd %d) failed", fd);
96 if (flock(fd, LOCK_UN) < 0) {
97 logerror("file unlock (fd %d) failed", fd);
110 lock.l_type = F_WRLCK;
111 lock.l_whence = L_SET;
115 if (fcntl(fd, F_SETLKW, &lock) < 0) {
116 logerror("file lock (fd %d) failed", fd);
127 lock.l_type = F_UNLCK;
128 lock.l_whence = L_SET;
132 if (fcntl(fd, F_SETLKW, &lock) < 0) {
133 logerror("file unlock (fd %d) failed", fd);