chiark / gitweb /
Add missing notification when scratch queued, lost a couple of commits back
[disorder] / server / deadlock.c
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460b9539 1/*
2 * This file is part of DisOrder
5aff007d 3 * Copyright (C) 2005, 2007, 2008 Richard Kettlewell
460b9539 4 *
e7eb3a27 5 * This program is free software: you can redistribute it and/or modify
460b9539 6 * it under the terms of the GNU General Public License as published by
e7eb3a27 7 * the Free Software Foundation, either version 3 of the License, or
460b9539 8 * (at your option) any later version.
9 *
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RK
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.
14 *
460b9539 15 * You should have received a copy of the GNU General Public License
e7eb3a27 16 * along with this program. If not, see <http://www.gnu.org/licenses/>.
460b9539 17 */
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RK
18/** @file server/deadlock.c
19 * @brief Deadlock monitor
20 *
21 * Spawned by the server.
22 */
05b75f8d 23#include "disorder-server.h"
460b9539 24
25static 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' },
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RK
31 { "syslog", no_argument, 0, 's' },
32 { "no-syslog", no_argument, 0, 'S' },
460b9539 33 { 0, 0, 0, 0 }
34};
35
36/* display usage message and terminate */
37static void help(void) {
38 xprintf("Usage:\n"
39 " disorder-deadlock [OPTIONS]\n"
40 "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"
0ca6d097 45 " --[no-]syslog Force logging\n"
460b9539 46 "\n"
47 "Deadlock manager for DisOrder. Not intended to be run\n"
48 "directly.\n");
49 xfclose(stdout);
50 exit(0);
51}
52
460b9539 53int main(int argc, char **argv) {
0ca6d097 54 int n, err, aborted, logsyslog = !isatty(2);
460b9539 55
56 set_progname(argv);
2e9ba080 57 if(!setlocale(LC_CTYPE, "")) disorder_fatal(errno, "error calling setlocale");
0ca6d097 58 while((n = getopt_long(argc, argv, "hVc:dDSs", options, 0)) >= 0) {
460b9539 59 switch(n) {
60 case 'h': help();
3fbdc96d 61 case 'V': version("disorder-deadlock");
460b9539 62 case 'c': configfile = optarg; break;
63 case 'd': debugging = 1; break;
64 case 'D': debugging = 0; break;
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65 case 'S': logsyslog = 0; break;
66 case 's': logsyslog = 1; break;
2e9ba080 67 default: disorder_fatal(0, "invalid option");
460b9539 68 }
69 }
0ca6d097 70 if(logsyslog) {
460b9539 71 openlog(progname, LOG_PID, LOG_DAEMON);
72 log_default = &log_syslog;
73 }
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74 if(config_read(0, NULL)) disorder_fatal(0, "cannot read configuration");
75 disorder_info("started");
d25c4615 76 trackdb_init(TRACKDB_NO_RECOVER);
460b9539 77 while(getppid() != 1) {
78 if((err = trackdb_env->lock_detect(trackdb_env,
79 0,
80 DB_LOCK_DEFAULT,
81 &aborted)))
2e9ba080 82 disorder_fatal(0, "trackdb_env->lock_detect: %s", db_strerror(err));
460b9539 83 if(aborted)
84 D(("aborted %d lock requests", aborted));
85 sleep(1);
86 }
87 /* if our parent goes away, it's time to stop */
2e9ba080 88 disorder_info("stopped (parent terminated)");
460b9539 89 return 0;
90}
91
92/*
93Local Variables:
94c-basic-offset:2
95comment-column:40
96fill-column:79
97indent-tabs-mode:nil
98End:
99*/