1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
4  * Copyright (c) 2003-2004  Sean M. Kelly <smkelly@FreeBSD.org>
41 #include <sys/time.h>
91 static int fd = -1;
92 static int carp_thresh_seconds = -1;
108 	{ "pretimeout-action", required_argument, &pretimeout_act_set, 1 },
110 	{ "softtimeout-action", required_argument, &softtimeout_act_set, 1 },
135 	if (rtprio(RTP_SET, 0, &rtp) == -1)  in main()
138 	if (!is_dry_run && watchdog_init() == -1)  in main()
142 		if (watchdog_onoff(1) == -1)  in main()
155 		if (debugging == 0 && daemon(0, 0) == -1) {  in main()
193 	ts->tv_sec = ns / 1000000000ULL;  in pow2ns_to_ts()
194 	ts->tv_nsec = ns % 1000000000ULL;  in pow2ns_to_ts()
211 	char shortopt[] = "- ";  in parse_timeout_to_pow2ns()
228 		    "(in: %s sec -> out: %jd sec %ld ns -> %d ticks)\n",  in parse_timeout_to_pow2ns()
229 		    longopt ? "-" : "", longopt ? longopt : shortopt,  in parse_timeout_to_pow2ns()
234 …errx(1, "Timeout for %s%s is too small, please choose a higher timeout.", longopt ? "-" : "", long…  in parse_timeout_to_pow2ns()
265 	return (-1);  in watchdog_init()
269  * If we are doing timing, then get the time.
292 	int sec;  in watchdog_check_dogfunction_time()  local
300 	sec = tv.tv_sec;  in watchdog_check_dogfunction_time()
301 	if (sec < carp_thresh_seconds)  in watchdog_check_dogfunction_time()
302 		return (sec);  in watchdog_check_dogfunction_time()
314 		    cmd_prefix, cmd, sec, (long)tv.tv_usec,  in watchdog_check_dogfunction_time()
319 		    cmd_prefix, cmd, sec, (long)tv.tv_usec,  in watchdog_check_dogfunction_time()
323 	 * Adjust the sleep interval again in case syslog(3) took a non-trivial  in watchdog_check_dogfunction_time()
324 	 * amount of time to run.  in watchdog_check_dogfunction_time()
327 		return (sec);  in watchdog_check_dogfunction_time()
330 	sec = tv.tv_sec;  in watchdog_check_dogfunction_time()
332 	return (sec);  in watchdog_check_dogfunction_time()
370 		if (nap - waited > 0)  in watchdog_loop()
371 			sleep(nap - waited);  in watchdog_loop()
386  * Reset the watchdog timer. This function must be called periodically
454 		/* pat one more time for good measure */  in watchdog_onoff()
472 "  watchdogd [-dnSw] [-e cmd] [-I pidfile] [-s sleep] [-t timeout]\n"  in usage()
473 "            [-T script_timeout] [-x exit_timeout]\n"  in usage()
474 "            [--debug]\n"  in usage()
475 "            [--pretimeout seconds] [-pretimeout-action action]\n"  in usage()
476 "            [--softtimeout] [-softtimeout-action action]\n"  in usage()
479 		fprintf(stderr, "usage: watchdog [-d] [-t timeout]\n");  in usage()
500 			errx(EX_USAGE, "--%s argument %s", longopt, errstr);  in fetchtimeout()
502 			errx(EX_USAGE, "-%c argument %s", opt, errstr);  in fetchtimeout()
532 		    act_tbl[i].at_act) == -1)  in timeout_act_error()
536 	warnx("bad --%s argument '%s' must be one of (%s).",  in timeout_act_error()
574 	tv->tv_sec = ts->tv_sec;  in tstotv()
575 	tv->tv_usec = ts->tv_nsec / 1000;  in tstotv()
587 	register long sec, usec;  in tvtohz()  local
602 	 * If the number of usecs in the whole seconds part of the time  in tvtohz()
610 	 * the time difference fits in a long, then convert the parts to  in tvtohz()
615 	 * Otherwise, round the time difference down to the maximum  in tvtohz()
621 	sec = tv->tv_sec;  in tvtohz()
622 	usec = tv->tv_usec;  in tvtohz()
624 		sec--;  in tvtohz()
627 	if (sec < 0) {  in tvtohz()
630 			sec++;  in tvtohz()
631 			usec -= 1000000;  in tvtohz()
633 		printf("tvotohz: negative time difference %ld sec %ld usec\n",  in tvtohz()
634 		    sec, usec);  in tvtohz()
637 	} else if (sec <= LONG_MAX / 1000000)  in tvtohz()
638 		ticks = (sec * 1000000 + (unsigned long)usec + (tick - 1))  in tvtohz()
640 	else if (sec <= LONG_MAX / hz)  in tvtohz()
641 		ticks = sec * hz  in tvtohz()
642 		    + ((unsigned long)usec + (tick - 1)) / tick + 1;  in tvtohz()
694 	if (argv[0][c - 1] == 'd')  in parseargs()
703 		    &longindex)) != -1) {  in parseargs()
751 			} else if (!strcmp(lopt, "pretimeout-action")) {  in parseargs()
754 			} else if (!strcmp(lopt, "softtimeout-action")) {  in parseargs()
774 	if (carp_thresh_seconds == -1)  in parseargs()
780 		errx(EX_USAGE, "-t argument is less than one second.");  in parseargs()
784 			    "pretimeout (%d) >= timeout (%d -> %ld)\n"  in parseargs()