diff options
Diffstat (limited to 'src/udev/udevadm-settle.c')
-rw-r--r-- | src/udev/udevadm-settle.c | 162 |
1 files changed, 0 insertions, 162 deletions
diff --git a/src/udev/udevadm-settle.c b/src/udev/udevadm-settle.c deleted file mode 100644 index 6a5dc6e9e4..0000000000 --- a/src/udev/udevadm-settle.c +++ /dev/null @@ -1,162 +0,0 @@ -/* - * Copyright (C) 2006-2009 Kay Sievers <kay@vrfy.org> - * Copyright (C) 2009 Canonical Ltd. - * Copyright (C) 2009 Scott James Remnant <scott@netsplit.com> - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see <http://www.gnu.org/licenses/>. - */ - -#include <errno.h> -#include <getopt.h> -#include <poll.h> -#include <stddef.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <unistd.h> - -#include "parse-util.h" -#include "udev.h" -#include "util.h" - -static void help(void) { - printf("%s settle OPTIONS\n\n" - "Wait for pending udev events.\n\n" - " -h --help Show this help\n" - " --version Show package version\n" - " -t --timeout=SECONDS Maximum time to wait for events\n" - " -E --exit-if-exists=FILE Stop waiting if file exists\n" - , program_invocation_short_name); -} - -static int adm_settle(struct udev *udev, int argc, char *argv[]) { - static const struct option options[] = { - { "timeout", required_argument, NULL, 't' }, - { "exit-if-exists", required_argument, NULL, 'E' }, - { "help", no_argument, NULL, 'h' }, - { "seq-start", required_argument, NULL, 's' }, /* removed */ - { "seq-end", required_argument, NULL, 'e' }, /* removed */ - { "quiet", no_argument, NULL, 'q' }, /* removed */ - {} - }; - usec_t deadline; - const char *exists = NULL; - unsigned int timeout = 120; - struct pollfd pfd[1] = { {.fd = -1}, }; - int c; - struct udev_queue *queue; - int rc = EXIT_FAILURE; - - while ((c = getopt_long(argc, argv, "t:E:hs:e:q", options, NULL)) >= 0) { - switch (c) { - - case 't': { - int r; - - r = safe_atou(optarg, &timeout); - if (r < 0) { - log_error_errno(r, "Invalid timeout value '%s': %m", optarg); - return EXIT_FAILURE; - } - break; - } - - case 'E': - exists = optarg; - break; - - case 'h': - help(); - return EXIT_SUCCESS; - - case 's': - case 'e': - case 'q': - log_info("Option -%c no longer supported.", c); - return EXIT_FAILURE; - - case '?': - return EXIT_FAILURE; - - default: - assert_not_reached("Unknown argument"); - } - } - - if (optind < argc) { - fprintf(stderr, "Extraneous argument: '%s'\n", argv[optind]); - return EXIT_FAILURE; - } - - deadline = now(CLOCK_MONOTONIC) + timeout * USEC_PER_SEC; - - /* guarantee that the udev daemon isn't pre-processing */ - if (getuid() == 0) { - struct udev_ctrl *uctrl; - - uctrl = udev_ctrl_new(udev); - if (uctrl != NULL) { - if (udev_ctrl_send_ping(uctrl, MAX(5U, timeout)) < 0) { - log_debug("no connection to daemon"); - udev_ctrl_unref(uctrl); - return EXIT_SUCCESS; - } - udev_ctrl_unref(uctrl); - } - } - - queue = udev_queue_new(udev); - if (!queue) { - log_error("unable to get udev queue"); - return EXIT_FAILURE; - } - - pfd[0].events = POLLIN; - pfd[0].fd = udev_queue_get_fd(queue); - if (pfd[0].fd < 0) { - log_debug("queue is empty, nothing to watch"); - rc = EXIT_SUCCESS; - goto out; - } - - for (;;) { - if (exists && access(exists, F_OK) >= 0) { - rc = EXIT_SUCCESS; - break; - } - - /* exit if queue is empty */ - if (udev_queue_get_queue_is_empty(queue)) { - rc = EXIT_SUCCESS; - break; - } - - if (now(CLOCK_MONOTONIC) >= deadline) - break; - - /* wake up when queue is empty */ - if (poll(pfd, 1, MSEC_PER_SEC) > 0 && pfd[0].revents & POLLIN) - udev_queue_flush(queue); - } - -out: - udev_queue_unref(queue); - return rc; -} - -const struct udevadm_cmd udevadm_settle = { - .name = "settle", - .cmd = adm_settle, - .help = "Wait for pending udev events", -}; |