2 * This file is part of DisOrder
3 * Copyright (C) 2005, 2007-2009 Richard Kettlewell
5 * This program is free software: you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation, either version 3 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program. If not, see <http://www.gnu.org/licenses/>.
18 /** @file server/deadlock.c
19 * @brief Deadlock monitor
21 * Spawned by the server.
23 #include "disorder-server.h"
25 static const struct option options[] = {
26 { "help", no_argument, 0, 'h' },
27 { "version", no_argument, 0, 'V' },
28 { "config", required_argument, 0, 'c' },
29 { "debug", no_argument, 0, 'd' },
30 { "no-debug", no_argument, 0, 'D' },
31 { "syslog", no_argument, 0, 's' },
32 { "no-syslog", no_argument, 0, 'S' },
36 /* display usage message and terminate */
37 static void attribute((noreturn)) help(void) {
39 " disorder-deadlock [OPTIONS]\n"
41 " --help, -h Display usage message\n"
42 " --version, -V Display version number\n"
43 " --config PATH, -c PATH Set configuration file\n"
44 " --debug, -d Turn on debugging\n"
45 " --[no-]syslog Force logging\n"
47 "Deadlock manager for DisOrder. Not intended to be run\n"
53 int main(int argc, char **argv) {
54 int n, err, aborted, logsyslog = !isatty(2);
57 if(!setlocale(LC_CTYPE, "")) disorder_fatal(errno, "error calling setlocale");
58 while((n = getopt_long(argc, argv, "hVc:dDSs", options, 0)) >= 0) {
61 case 'V': version("disorder-deadlock");
62 case 'c': configfile = optarg; break;
63 case 'd': debugging = 1; break;
64 case 'D': debugging = 0; break;
65 case 'S': logsyslog = 0; break;
66 case 's': logsyslog = 1; break;
67 default: disorder_fatal(0, "invalid option");
71 openlog(progname, LOG_PID, LOG_DAEMON);
72 log_default = &log_syslog;
74 if(config_read(0, NULL)) disorder_fatal(0, "cannot read configuration");
75 disorder_info("started");
76 trackdb_init(TRACKDB_NO_RECOVER);
77 while(getppid() != 1) {
78 if((err = trackdb_env->lock_detect(trackdb_env,
82 disorder_fatal(0, "trackdb_env->lock_detect: %s", db_strerror(err));
84 D(("aborted %d lock requests", aborted));
87 /* if our parent goes away, it's time to stop */
88 disorder_info("stopped (parent terminated)");