예제 #1
0
파일: mnav.cpp 프로젝트: metiscus/microgear
void mnav_close()
{
    //close the serial port
    sPort2.close_port();

    //close files
    logging_close();
}
예제 #2
0
int main(int argc, char **argv)
{
	struct drcom_handle *h;
	int daemon = 1;
	int i;

	if(argc > 2)
		usage();

	for (i = 1 ; i < argc; i++) {
		char *arg = argv[i];
		if (strcmp(arg, "--nodaemon") == 0 || strcmp(arg, "-n") == 0) {
			printf("%s: log to stderr.\n", argv[0]);
			daemon = 0;
		}
	}

	/* Initialize the handle for the lifetime of the daemon */
	h = drcom_create_handle();
	if(drcom_init(h)<0){
		logerr("conf file err\n");
		exit(-1);
	}

	load_kernel_module();

	if (daemon)
		daemonize();

	logging_init("drcomd", daemon);

	drcomd_daemon(h);

	logging_close();

	return 0;
}
예제 #3
0
파일: main.c 프로젝트: Tarsnap/kivaloo
int
main(int argc, char * argv[])
{
	/* State variables. */
	struct serverpool * SP;
	struct dynamodb_request_queue * QW;
	struct dynamodb_request_queue * QR;
	struct dispatch_state * D;
	int s;

	/* Command-line parameters. */
	char * opt_k = NULL;
	char * opt_l = NULL;
	char * opt_p = NULL;
	char * opt_r = NULL;
	char * opt_s = NULL;
	char * opt_t = NULL;
	int opt_1 = 0;

	/* Working variable. */
	char * dynamodb_host;
	char * key_id;
	char * key_secret;
	struct sock_addr ** sas;
	struct logging_file * logfile;
	struct capacity_reader * M;
	const char * ch;

	WARNP_INIT;

	/* Parse the command line. */
	while ((ch = GETOPT(argc, argv)) != NULL) {
		GETOPT_SWITCH(ch) {
		GETOPT_OPTARG("-k"):
			if (opt_k != NULL)
				usage();
			if ((opt_k = strdup(optarg)) == NULL)
				OPT_EPARSE(ch, optarg);
			break;
		GETOPT_OPTARG("-l"):
			if (opt_l != NULL)
				usage();
			if ((opt_l = strdup(optarg)) == NULL)
				OPT_EPARSE(ch, optarg);
			break;
		GETOPT_OPTARG("-p"):
			if (opt_p != NULL)
				usage();
			if ((opt_p = strdup(optarg)) == NULL)
				OPT_EPARSE(ch, optarg);
			break;
		GETOPT_OPTARG("-r"):
			if (opt_r != NULL)
				usage();
			if ((opt_r = strdup(optarg)) == NULL)
				OPT_EPARSE(ch, optarg);
			break;
		GETOPT_OPTARG("-s"):
			if (opt_s != NULL)
				usage();
			if ((opt_s = strdup(optarg)) == NULL)
				OPT_EPARSE(ch, optarg);
			break;
		GETOPT_OPTARG("-t"):
			if (opt_t != NULL)
				usage();
			if ((opt_t = strdup(optarg)) == NULL)
				OPT_EPARSE(ch, optarg);
			break;
		GETOPT_OPT("--version"):
			fprintf(stderr, "dynamodb-kv @VERSION@\n");
			exit(0);
		GETOPT_OPT("-1"):
			if (opt_1 != 0)
				usage();
			opt_1 = 1;
			break;
		GETOPT_MISSING_ARG:
			warn0("Missing argument to %s\n", ch);
			usage();
		GETOPT_DEFAULT:
			warn0("illegal option -- %s\n", ch);
			usage();
		}
	}
	argc -= optind;
	argv += optind;

	/* We should have processed all the arguments. */
	if (argc != 0)
		usage();

	/* Verify that we have mandatory options. */
	if (opt_k == NULL)
		usage();
	if (opt_r == NULL)
		usage();
	if (opt_s == NULL)
		usage();
	if (opt_t == NULL)
		usage();

	/* Construct the DynamoDB endpoint host name. */
	if (asprintf(&dynamodb_host, "dynamodb.%s.amazonaws.com:80",
	    opt_r) == -1) {
		warnp("asprintf");
		exit(1);
	}

	/* Start looking up addresses for DynamoDB endpoints. */
	if ((SP = serverpool_create(dynamodb_host, 15, 120)) == NULL) {
		warnp("Error starting DNS lookups for %s", dynamodb_host);
		exit(1);
	}

	/* Read the key file. */
	if (aws_readkeys(opt_k, &key_id, &key_secret)) {
		warnp("Error reading AWS keys from %s", opt_k);
		exit(1);
	}

	/* Create DynamoDB request queues for writes and reads. */
	if ((QW = dynamodb_request_queue_init(key_id, key_secret,
	    opt_r, SP)) == NULL) {
		warnp("Error creating DynamoDB request queue");
		exit(1);
	}
	if ((QR = dynamodb_request_queue_init(key_id, key_secret,
	    opt_r, SP)) == NULL) {
		warnp("Error creating DynamoDB request queue");
		exit(1);
	}

	/* Start reading table throughput parameters. */
	if ((M = capacity_init(key_id, key_secret, opt_t, opt_r,
	    SP, QW, QR)) == NULL) {
		warnp("Error reading DynamoDB table metadata");
		exit(1);
	}

	/* Resolve the listening address. */
	if ((sas = sock_resolve(opt_s)) == NULL) {
		warnp("Error resolving socket address: %s", opt_s);
		exit(1);
	}
	if (sas[0] == NULL) {
		warn0("No addresses found for %s", opt_s);
		exit(1);
	}

	/* Create and bind a socket, and mark it as listening. */
	if (sas[1] != NULL)
		warn0("Listening on first of multiple addresses found for %s",
		    opt_s);
	if ((s = sock_listener(sas[0])) == -1)
		exit(1);

	/* If requested, create a log file. */
	if (opt_l != NULL) {
		if ((logfile = logging_open(opt_l)) == NULL) {
			warnp("Cannot open log file");
			exit(1);
		}
		dynamodb_request_queue_log(QW, logfile);
		dynamodb_request_queue_log(QR, logfile);
	} else {
		logfile = NULL;
	}

	/* Daemonize and write pid. */
	if (opt_p == NULL) {
		if (asprintf(&opt_p, "%s.pid", opt_s) == -1) {
			warnp("asprintf");
			exit(1);
		}
	}
	if (daemonize(opt_p)) {
		warnp("Failed to daemonize");
		exit(1);
	}

	/* Handle connections, one at once. */
	do {
		/* accept a connection. */
		if ((D = dispatch_accept(QW, QR, opt_t, s)) == NULL) {
			warnp("Error accepting new connection");
			exit(1);
		}

		/* Loop until the connection dies. */
		do {
			if (events_run()) {
				warnp("Error running event loop");
				exit(1);
			}
		} while (dispatch_alive(D));

		/* Clean up the connection. */
		if (dispatch_done(D))
			exit(1);
	} while (opt_1 == 0);

	/* Close the log file, if we have one. */
	if (logfile != NULL)
		logging_close(logfile);

	/* Close the listening socket. */
	close(s);

	/* Free the address structures. */
	sock_addr_freelist(sas);

	/* Stop performing DescribeTable requests. */
	capacity_free(M);

	/* Free DynamoDB request queues. */
	dynamodb_request_queue_free(QR);
	dynamodb_request_queue_free(QW);

	/* Stop DNS lookups. */
	serverpool_free(SP);

	/* Shut down the event subsystem. */
	events_shutdown();

	/* Free string allocated by asprintf. */
	free(dynamodb_host);

	/* Free key strings. */
	free(key_id);
	insecure_memzero(key_secret, strlen(key_secret));
	free(key_secret);

	/* Free option strings. */
	free(opt_k);
	free(opt_l);
	free(opt_p);
	free(opt_r);
	free(opt_s);
	free(opt_t);

	/* Success! */
	exit(0);
}
예제 #4
0
파일: cdrom_id.c 프로젝트: OPSF/uClinux
int main(int argc, char *argv[])
{
	struct udev *udev;
	static const struct option options[] = {
		{ "export", no_argument, NULL, 'x' },
		{ "debug", no_argument, NULL, 'd' },
		{ "help", no_argument, NULL, 'h' },
		{}
	};
	const char *node = NULL;
	int export = 0;
	int fd = -1;
	int rc = 0;

	udev = udev_new();
	if (udev == NULL)
		goto exit;

	logging_init("cdrom_id");
	udev_set_log_fn(udev, log_fn);

	while (1) {
		int option;

		option = getopt_long(argc, argv, "dxh", options, NULL);
		if (option == -1)
			break;

		switch (option) {
		case 'd':
			debug = 1;
			if (udev_get_log_priority(udev) < LOG_INFO)
				udev_set_log_priority(udev, LOG_INFO);
			break;
		case 'x':
			export = 1;
			break;
		case 'h':
			printf("Usage: cdrom_id [options] <device>\n"
			       "  --export        export key/value pairs\n"
			       "  --debug         debug to stderr\n"
			       "  --help          print this help text\n\n");
			goto exit;
		default:
			rc = 1;
			goto exit;
		}
	}

	node = argv[optind];
	if (!node) {
		err(udev, "no device\n");
		fprintf(stderr, "no device\n");
		rc = 1;
		goto exit;
	}

	fd = open(node, O_RDONLY | O_NONBLOCK);
	if (fd < 0) {
		info(udev, "unable to open '%s'\n", node);
		rc = 1;
		goto exit;
	}
	info(udev, "probing: '%s'\n", node);

	/* same data as original cdrom_id */
	if (cd_capability_compat(udev, fd) < 0) {
		rc = 1;
		goto exit;
	}

	/* check drive */
	if (cd_inquiry(udev, fd) < 0) {
		rc = 2;
		goto exit;
	}

	/* read drive and possibly current profile */
	if (cd_profiles(udev, fd) < 0)
		goto print;

	/* get session/track info */
	if (cd_media_toc(udev, fd) < 0)
		goto print;

	/* get writable media state */
	if (cd_media_info(udev, fd) < 0)
		goto print;

print:
	printf("ID_CDROM=1\n");
	if (cd_cd_rom)
		printf("ID_CDROM_CD=1\n");
	if (cd_cd_r)
		printf("ID_CDROM_CD_R=1\n");
	if (cd_cd_rw)
		printf("ID_CDROM_CD_RW=1\n");
	if (cd_dvd_rom)
		printf("ID_CDROM_DVD=1\n");
	if (cd_dvd_r)
		printf("ID_CDROM_DVD_R=1\n");
	if (cd_dvd_rw)
		printf("ID_CDROM_DVD_RW=1\n");
	if (cd_dvd_ram)
		printf("ID_CDROM_DVD_RAM=1\n");
	if (cd_dvd_plus_r)
		printf("ID_CDROM_DVD_PLUS_R=1\n");
	if (cd_dvd_plus_rw)
		printf("ID_CDROM_DVD_PLUS_RW=1\n");
	if (cd_dvd_plus_r_dl)
		printf("ID_CDROM_DVD_PLUS_R_DL=1\n");
	if (cd_dvd_plus_rw_dl)
		printf("ID_CDROM_DVD_PLUS_RW_DL=1\n");
	if (cd_bd)
		printf("ID_CDROM_BD=1\n");
	if (cd_bd_r)
		printf("ID_CDROM_BD_R=1\n");
	if (cd_bd_re)
		printf("ID_CDROM_BD_RE=1\n");
	if (cd_hddvd)
		printf("ID_CDROM_HDDVD=1\n");
	if (cd_hddvd_r)
		printf("ID_CDROM_HDDVD_R=1\n");
	if (cd_hddvd_rw)
		printf("ID_CDROM_HDDVD_RW=1\n");
	if (cd_mo)
		printf("ID_CDROM_MO=1\n");
	if (cd_mrw)
		printf("ID_CDROM_MRW=1\n");
	if (cd_mrw_w)
		printf("ID_CDROM_MRW_W=1\n");

	if (cd_media_mo)
		printf("ID_CDROM_MEDIA_MO=1\n");
	if (cd_media_mrw)
		printf("ID_CDROM_MEDIA_MRW=1\n");
	if (cd_media_mrw_w)
		printf("ID_CDROM_MEDIA_MRW_W=1\n");
	if (cd_media_cd_rom)
		printf("ID_CDROM_MEDIA_CD=1\n");
	if (cd_media_cd_r)
		printf("ID_CDROM_MEDIA_CD_R=1\n");
	if (cd_media_cd_rw)
		printf("ID_CDROM_MEDIA_CD_RW=1\n");
	if (cd_media_dvd_rom)
		printf("ID_CDROM_MEDIA_DVD=1\n");
	if (cd_media_dvd_r)
		printf("ID_CDROM_MEDIA_DVD_R=1\n");
	if (cd_media_dvd_ram)
		printf("ID_CDROM_MEDIA_DVD_RAM=1\n");
	if (cd_media_dvd_rw)
		printf("ID_CDROM_MEDIA_DVD_RW=1\n");
	if (cd_media_dvd_plus_r)
		printf("ID_CDROM_MEDIA_DVD_PLUS_R=1\n");
	if (cd_media_dvd_plus_rw)
		printf("ID_CDROM_MEDIA_DVD_PLUS_RW=1\n");
	if (cd_media_dvd_plus_rw_dl)
		printf("ID_CDROM_MEDIA_DVD_PLUS_RW_DL=1\n");
	if (cd_media_dvd_plus_r_dl)
		printf("ID_CDROM_MEDIA_DVD_PLUS_R_DL=1\n");
	if (cd_media_bd)
		printf("ID_CDROM_MEDIA_BD=1\n");
	if (cd_media_bd_r)
		printf("ID_CDROM_MEDIA_BD_R=1\n");
	if (cd_media_bd_re)
		printf("ID_CDROM_MEDIA_BD_RE=1\n");
	if (cd_media_hddvd)
		printf("ID_CDROM_MEDIA_HDDVD=1\n");
	if (cd_media_hddvd_r)
		printf("ID_CDROM_MEDIA_HDDVD_R=1\n");
	if (cd_media_hddvd_rw)
		printf("ID_CDROM_MEDIA_HDDVD_RW=1\n");

	if (cd_media_state != NULL)
		printf("ID_CDROM_MEDIA_STATE=%s\n", cd_media_state);
	if (cd_media_session_next > 0)
		printf("ID_CDROM_MEDIA_SESSION_NEXT=%d\n", cd_media_session_next);
	if (cd_media_session_count > 0)
		printf("ID_CDROM_MEDIA_SESSION_COUNT=%d\n", cd_media_session_count);
	if (cd_media_track_count > 0)
		printf("ID_CDROM_MEDIA_TRACK_COUNT=%d\n", cd_media_track_count);
	if (cd_media_track_count_audio > 0)
		printf("ID_CDROM_MEDIA_TRACK_COUNT_AUDIO=%d\n", cd_media_track_count_audio);
	if (cd_media_track_count_data > 0)
		printf("ID_CDROM_MEDIA_TRACK_COUNT_DATA=%d\n", cd_media_track_count_data);
	if (cd_media_session_last_offset > 0)
		printf("ID_CDROM_MEDIA_SESSION_LAST_OFFSET=%llu\n", cd_media_session_last_offset);
exit:
	if (fd >= 0)
		close(fd);
	udev_unref(udev);
	logging_close();
	return rc;
}
예제 #5
0
int
main(int argc, char **argv)
{
	struct timespec mtime = { 0 };
	sigset_t mask, sigmask_orig;
	int c, fd;
	int ep_timeout   = 0;
	int ignore_timer = 0;
	int new_events   = 0;

	char *eventdir, *prog, **prog_args;

	struct option long_options[] = {
		{ "help", no_argument, 0, 'h' },
		{ "version", no_argument, 0, 'V' },
		{ "foreground", no_argument, 0, 'f' },
		{ "loglevel", required_argument, 0, 'L' },
		{ "logfile", required_argument, 0, 'l' },
		{ "pidfile", required_argument, 0, 'p' },
		{ "timeout", required_argument, 0, 't' },
		{ 0, 0, 0, 0 }
	};

	while ((c = getopt_long(argc, argv, "hVfL:l:p:", long_options, NULL)) != -1) {
		switch (c) {
			case 't':
				timeout = atoi(optarg);
				if (!timeout)
					timeout = DEFAULT_TIMEOUT;
				break;
			case 'p':
				pidfile = optarg;
				break;
			case 'l':
				logfile = optarg;
				break;
			case 'L':
				log_priority = logging_level(optarg);
				break;
			case 'f':
				daemonize = 0;
				break;
			case 'V':
				printf("%s %s\n", PROGRAM_NAME, VERSION);
				return EXIT_SUCCESS;
			default:
			case 'h':
				printf("Usage: %s [options] DIRECTORY PROGRAM [ARGS...]\n"
				       "\nThe utility monitors the DIRECTORY and when\n"
				       "new files appear run the PROGRAM.\n\n"
				       "Options:\n"
				       " -p, --pidfile=FILE   pid file location;\n"
				       " -l, --logfile=FILE   log file;\n"
				       " -L, --loglevel=LVL   logging level;\n"
				       " -t, --timeout=SEC    number of seconds that need to wait"
				       "                      for files before the PROGRAM launch;\n"
				       " -f, --foreground     stay in the foreground;\n"
				       " -V, --version        print program version and exit;\n"
				       " -h, --help           show this text and exit.\n"
				       "\n",
				       PROGRAM_NAME);
				return EXIT_SUCCESS;
		}
	}

	if (optind >= argc)
		error(EXIT_FAILURE, 0, "You must specify the directory");

	eventdir = argv[optind++];

	if (optind >= argc)
		error(EXIT_FAILURE, 0, "You must specify the program");

	prog = canonicalize_file_name(argv[optind]);
	if (!prog)
		error(EXIT_FAILURE, errno, "Bad program");

	argv[optind] = strrchr(prog, '/');
	if (!argv[optind])
		argv[optind] = prog;

	prog_args = argv + optind;

	if (!log_priority)
		log_priority = logging_level("info");

	if (pidfile && check_pid(pidfile))
		error(EXIT_FAILURE, 0, "%s: already running", PROGRAM_NAME);

	if (chdir("/") < 0)
		error(EXIT_FAILURE, errno, "%s: chdir(/)", PROGRAM_NAME);

	close(STDIN_FILENO);

	if ((fd = open("/dev/null", O_RDONLY)) < 0)
		error(EXIT_FAILURE, errno, "%s: open(/dev/null)", PROGRAM_NAME);

	if (fd != STDIN_FILENO) {
		dup2(fd, STDIN_FILENO);
		close(fd);
	}

	if (daemonize && daemon(0, 1) < 0)
		error(EXIT_FAILURE, errno, "%s: daemon", PROGRAM_NAME);

	logging_init();

	info("starting version %s", VERSION);

	if (pidfile && write_pid(pidfile) == 0)
		return EXIT_FAILURE;

	sigfillset(&mask);
	sigprocmask(SIG_SETMASK, &mask, &sigmask_orig);

	sigdelset(&mask, SIGABRT);
	sigdelset(&mask, SIGSEGV);

	if ((fd_ep = epoll_create1(EPOLL_CLOEXEC)) < 0)
		fatal("epoll_create1: %m");

	if ((fd_signal = signalfd(-1, &mask, SFD_NONBLOCK | SFD_CLOEXEC)) < 0)
		fatal("signalfd: %m");

	epollin_add(fd_ep, fd_signal);

	if ((fd_eventdir = inotify_init1(IN_NONBLOCK | IN_CLOEXEC)) < 0)
		fatal("inotify_init1: %m");

	if (inotify_add_watch(fd_eventdir, eventdir, IN_ONLYDIR | IN_DONT_FOLLOW | IN_MOVED_TO | IN_CLOSE_WRITE) < 0)
		fatal("inotify_add_watch: %m");

	epollin_add(fd_ep, fd_eventdir);

	ignore_timer = is_dir_not_empty(eventdir);

	if (clock_gettime(CLOCK_MONOTONIC, &now) < 0)
		fatal("clock_gettime: %m");
	last.tv_sec = now.tv_sec;

	while (!do_exit) {
		struct epoll_event ev[42];
		int i, fdcount;
		ssize_t size;

		if ((fdcount = epoll_wait(fd_ep, ev, ARRAY_SIZE(ev), ep_timeout)) < 0)
			continue;

		if (!ep_timeout)
			ep_timeout = timeout * 1000;

		for (i = 0; i < fdcount; i++) {

			if (!(ev[i].events & EPOLLIN)) {
				continue;

			} else if (ev[i].data.fd == fd_signal) {
				struct signalfd_siginfo fdsi;

				size = TEMP_FAILURE_RETRY(read(fd_signal,
				                               &fdsi, sizeof(struct signalfd_siginfo)));

				if (size != sizeof(struct signalfd_siginfo)) {
					err("unable to read signal info");
					continue;
				}

				handle_signal(fdsi.ssi_signo);

			} else if (ev[i].data.fd == fd_eventdir) {
				read_inotify_events(fd_eventdir);
				new_events += 1;
			}
		}

		if (new_events) {
			struct stat sb;

			new_events = 0;

			if (lstat(eventdir, &sb) < 0)
				fatal("lstat: %s: %m", eventdir);

			if (mtime.tv_sec != sb.st_mtim.tv_sec || mtime.tv_nsec != sb.st_mtim.tv_nsec) {
				if (clock_gettime(CLOCK_MONOTONIC, &now) < 0)
					fatal("clock_gettime: %m");
				last.tv_sec = now.tv_sec;
			}

			mtime.tv_sec  = sb.st_mtim.tv_sec;
			mtime.tv_nsec = sb.st_mtim.tv_nsec;
		}

		if (worker_pid)
			continue;

		if (!ignore_timer) {
			if (clock_gettime(CLOCK_MONOTONIC, &now) < 0)
				fatal("clock_gettime: %m");

			if (now.tv_sec < last.tv_sec || (now.tv_sec - last.tv_sec) < timeout)
				continue;
		}
		ignore_timer = 0;

		if ((worker_pid = spawn_worker(prog, prog_args)) < 0)
			fatal("spawn_worker: %m");

		dbg("Run worker %d", worker_pid);
	}

	epollin_remove(fd_ep, fd_signal);
	epollin_remove(fd_ep, fd_eventdir);

	free(prog);

	if (pidfile)
		remove_pid(pidfile);

	logging_close();

	return EXIT_SUCCESS;
}
예제 #6
0
파일: udevsettle.c 프로젝트: AllardJ/Tomato
int main(int argc, char *argv[], char *envp[])
{
	char queuename[PATH_SIZE];
	char filename[PATH_SIZE];
	unsigned long long seq_kernel;
	unsigned long long seq_udev;
	char seqnum[32];
	int fd;
	ssize_t len;
	int timeout = DEFAULT_TIMEOUT;
	int loop;
	static const struct option options[] = {
		{ "timeout", 1, NULL, 't' },
		{ "help", 0, NULL, 'h' },
		{}
	};
	int option;
	int rc = 1;
	int seconds;

	logging_init("udevsettle");
	udev_config_init();
	dbg("version %s", UDEV_VERSION);
	sysfs_init();

	while (1) {
		option = getopt_long(argc, argv, "t:h", options, NULL);
		if (option == -1)
			break;

		switch (option) {
		case 't':
			seconds = atoi(optarg);
			if (seconds > 0)
				timeout = seconds;
			else
				fprintf(stderr, "invalid timeout value\n");
			dbg("timeout=%i", timeout);
			break;
		case 'h':
			printf("Usage: udevsettle [--help] [--timeout=<seconds>]\n\n");
			goto exit;
		}
	}

	strlcpy(queuename, udev_root, sizeof(queuename));
	strlcat(queuename, "/" EVENT_QUEUE_DIR, sizeof(queuename));

	loop = timeout * LOOP_PER_SECOND;
	while (loop--) {
		/* wait for events in queue to finish */
		while (loop--) {
			struct stat statbuf;

			if (stat(queuename, &statbuf) < 0) {
				info("queue is empty");
				break;
			}
			usleep(1000 * 1000 / LOOP_PER_SECOND);
		}
		if (loop <= 0) {
			info("timeout waiting for queue");
			goto exit;
		}

		/* read current udev seqnum */
		strlcpy(filename, udev_root, sizeof(filename));
		strlcat(filename, "/" EVENT_SEQNUM, sizeof(filename));
		fd = open(filename, O_RDONLY);
		if (fd < 0)
			goto exit;
		len = read(fd, seqnum, sizeof(seqnum)-1);
		close(fd);
		if (len <= 0)
			goto exit;
		seqnum[len] = '\0';
		seq_udev = strtoull(seqnum, NULL, 10);
		info("udev seqnum = %llu", seq_udev);

		/* read current kernel seqnum */
		strlcpy(filename, sysfs_path, sizeof(filename));
		strlcat(filename, "/kernel/uevent_seqnum", sizeof(filename));
		fd = open(filename, O_RDONLY);
		if (fd < 0)
			goto exit;
		len = read(fd, seqnum, sizeof(seqnum)-1);
		close(fd);
		if (len <= 0)
			goto exit;
		seqnum[len] = '\0';
		seq_kernel = strtoull(seqnum, NULL, 10);
		info("kernel seqnum = %llu", seq_kernel);

		/* make sure all kernel events have arrived in the queue */
		if (seq_udev >= seq_kernel) {
			info("queue is empty and no pending events left");
			rc = 0;
			goto exit;
		}
		usleep(1000 * 1000 / LOOP_PER_SECOND);
		info("queue is empty, but events still pending");
	}

exit:
	sysfs_cleanup();
	logging_close();
	return rc;
}