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Commit	Line	Data
	1	/*
	2	* This file is part of DisOrder
	3	* Copyright (C) 2005, 2007-2009 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 3 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,
	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	*
	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/>.
	17	*/
	18	/** @file server/deadlock.c
	19	* @brief Deadlock monitor
	20	*
	21	* Spawned by the server.
	22	*/
	23	#include "disorder-server.h"
	24
	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' },
	33	{ 0, 0, 0, 0 }
	34	};
	35
	36	/* display usage message and terminate */
	37	static void attribute((noreturn)) 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"
	45	" --[no-]syslog Force logging\n"
	46	"\n"
	47	"Deadlock manager for DisOrder. Not intended to be run\n"
	48	"directly.\n");
	49	xfclose(stdout);
	50	exit(0);
	51	}
	52
	53	int main(int argc, char **argv) {
	54	int n, err, aborted, logsyslog = !isatty(2);
	55
	56	set_progname(argv);
	57	if(!setlocale(LC_CTYPE, "")) disorder_fatal(errno, "error calling setlocale");
	58	while((n = getopt_long(argc, argv, "hVc:dDSs", options, 0)) >= 0) {
	59	switch(n) {
	60	case 'h': help();
	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");
	68	}
	69	}
	70	if(logsyslog) {
	71	openlog(progname, LOG_PID, LOG_DAEMON);
	72	log_default = &log_syslog;
	73	}
	74	config_per_user = 0;
	75	if(config_read(0, NULL)) disorder_fatal(0, "cannot read configuration");
	76	disorder_info("started");
	77	trackdb_init(TRACKDB_NO_RECOVER);
	78	while(getppid() != 1) {
	79	if((err = trackdb_env->lock_detect(trackdb_env,
	80	0,
	81	DB_LOCK_DEFAULT,
	82	&aborted)))
	83	disorder_fatal(0, "trackdb_env->lock_detect: %s", db_strerror(err));
	84	if(aborted)
	85	D(("aborted %d lock requests", aborted));
	86	sleep(1);
	87	}
	88	/* if our parent goes away, it's time to stop */
	89	disorder_info("stopped (parent terminated)");
	90	return 0;
	91	}
	92
	93	/*
	94	Local Variables:
	95	c-basic-offset:2
	96	comment-column:40
	97	fill-column:79
	98	indent-tabs-mode:nil
	99	End:
	100	*/