chiark / gitweb /
rights now apply to commands; docs catch up a bit
[disorder] / server / deadlock.c
CommitLineData
460b9539 1/*
2 * This file is part of DisOrder
3 * Copyright (C) 2005 Richard Kettlewell
4 *
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 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
18 * USA
19 */
20
21#include <config.h>
22#include "types.h"
23
24#include <getopt.h>
25#include <stdio.h>
26#include <stdlib.h>
27#include <db.h>
28#include <locale.h>
29#include <errno.h>
30#include <sys/types.h>
31#include <unistd.h>
32#include <pcre.h>
33#include <string.h>
34#include <syslog.h>
35
36#include "configuration.h"
37#include "syscalls.h"
38#include "log.h"
39#include "defs.h"
40#include "mem.h"
41#include "kvp.h"
5df73aeb 42#include "rights.h"
460b9539 43#include "trackdb.h"
44#include "trackdb-int.h"
45
46static const struct option options[] = {
47 { "help", no_argument, 0, 'h' },
48 { "version", no_argument, 0, 'V' },
49 { "config", required_argument, 0, 'c' },
50 { "debug", no_argument, 0, 'd' },
51 { "no-debug", no_argument, 0, 'D' },
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RK
52 { "syslog", no_argument, 0, 's' },
53 { "no-syslog", no_argument, 0, 'S' },
460b9539 54 { 0, 0, 0, 0 }
55};
56
57/* display usage message and terminate */
58static void help(void) {
59 xprintf("Usage:\n"
60 " disorder-deadlock [OPTIONS]\n"
61 "Options:\n"
62 " --help, -h Display usage message\n"
63 " --version, -V Display version number\n"
64 " --config PATH, -c PATH Set configuration file\n"
65 " --debug, -d Turn on debugging\n"
0ca6d097 66 " --[no-]syslog Force logging\n"
460b9539 67 "\n"
68 "Deadlock manager for DisOrder. Not intended to be run\n"
69 "directly.\n");
70 xfclose(stdout);
71 exit(0);
72}
73
74/* display version number and terminate */
75static void version(void) {
a05e4467 76 xprintf("%s", disorder_version_string);
460b9539 77 xfclose(stdout);
78 exit(0);
79}
80
81int main(int argc, char **argv) {
0ca6d097 82 int n, err, aborted, logsyslog = !isatty(2);
460b9539 83
84 set_progname(argv);
460b9539 85 if(!setlocale(LC_CTYPE, "")) fatal(errno, "error calling setlocale");
0ca6d097 86 while((n = getopt_long(argc, argv, "hVc:dDSs", options, 0)) >= 0) {
460b9539 87 switch(n) {
88 case 'h': help();
89 case 'V': version();
90 case 'c': configfile = optarg; break;
91 case 'd': debugging = 1; break;
92 case 'D': debugging = 0; break;
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RK
93 case 'S': logsyslog = 0; break;
94 case 's': logsyslog = 1; break;
460b9539 95 default: fatal(0, "invalid option");
96 }
97 }
0ca6d097 98 if(logsyslog) {
460b9539 99 openlog(progname, LOG_PID, LOG_DAEMON);
100 log_default = &log_syslog;
101 }
c00fce3a 102 if(config_read(0)) fatal(0, "cannot read configuration");
460b9539 103 info("started");
d25c4615 104 trackdb_init(TRACKDB_NO_RECOVER);
460b9539 105 while(getppid() != 1) {
106 if((err = trackdb_env->lock_detect(trackdb_env,
107 0,
108 DB_LOCK_DEFAULT,
109 &aborted)))
110 fatal(0, "trackdb_env->lock_detect: %s", db_strerror(err));
111 if(aborted)
112 D(("aborted %d lock requests", aborted));
113 sleep(1);
114 }
115 /* if our parent goes away, it's time to stop */
116 info("stopped (parent terminated)");
117 return 0;
118}
119
120/*
121Local Variables:
122c-basic-offset:2
123comment-column:40
124fill-column:79
125indent-tabs-mode:nil
126End:
127*/