/*
- * Copyright (C) 2006 Kay Sievers <kay@vrfy.org>
+ * Copyright (C) 2006-2008 Kay Sievers <kay@vrfy.org>
*
- * 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 version 2 of the License.
- *
- * 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, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ * 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 <stdlib.h>
#define DEFAULT_TIMEOUT 180
#define LOOP_PER_SECOND 20
-static void print_queue(struct udev *udev, const char *dir)
-{
- LIST_HEAD(files);
- struct name_entry *item;
-
- if (add_matching_files(udev, &files, dir, NULL) < 0)
- return;
-
- printf("\n\nAfter the udevadm settle timeout, the events queue contains:\n\n");
-
- list_for_each_entry(item, &files, node) {
- char target[NAME_SIZE];
- size_t len;
- const char *filename = strrchr(item->name, '/');
-
- if (filename == NULL)
- continue;
- filename++;
- if (*filename == '\0')
- continue;
-
- len = readlink(item->name, target, sizeof(target));
- if (len < 0)
- continue;
- target[len] = '\0';
-
- printf("%s: %s\n", filename, target);
- }
-
- printf("\n\n");
-}
-
int udevadm_settle(struct udev *udev, int argc, char *argv[])
{
- 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' },
+ { "timeout", required_argument, NULL, 't' },
+ { "quiet", no_argument, NULL, 'q' },
+ { "help", no_argument, NULL, 'h' },
{}
};
- int option;
- int rc = 1;
- int seconds;
+ int timeout = DEFAULT_TIMEOUT;
+ int quiet = 0;
+ struct udev_queue *udev_queue = NULL;
+ int loop;
+ int rc = 0;
dbg(udev, "version %s\n", VERSION);
while (1) {
- option = getopt_long(argc, argv, "t:h", options, NULL);
+ int option;
+ int seconds;
+
+ option = getopt_long(argc, argv, "t:qh", options, NULL);
if (option == -1)
break;
switch (option) {
case 't':
seconds = atoi(optarg);
- if (seconds > 0)
+ if (seconds >= 0)
timeout = seconds;
else
fprintf(stderr, "invalid timeout value\n");
dbg(udev, "timeout=%i\n", timeout);
break;
+ case 'q':
+ quiet = 1;
+ break;
case 'h':
- printf("Usage: udevadm settle [--help] [--timeout=<seconds>]\n\n");
+ printf("Usage: udevadm settle [--help] [--timeout=<seconds>] [--quiet]\n\n");
goto exit;
}
}
- strlcpy(queuename, udev_get_dev_path(udev), sizeof(queuename));
- strlcat(queuename, "/.udev/queue", sizeof(queuename));
-
+ udev_queue = udev_queue_new(udev);
+ if (udev_queue == NULL)
+ goto exit;
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(udev, "queue is empty\n");
- break;
- }
- usleep(1000 * 1000 / LOOP_PER_SECOND);
- }
- if (loop <= 0) {
- info(udev, "timeout waiting for queue\n");
- print_queue(udev, queuename);
- goto exit;
- }
-
- /* read current udev seqnum */
- strlcpy(filename, udev_get_dev_path(udev), sizeof(filename));
- strlcat(filename, "/.udev/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_udev = strtoull(seqnum, NULL, 10);
- info(udev, "udev seqnum = %llu\n", seq_udev);
-
- /* read current kernel seqnum */
- strlcpy(filename, udev_get_sys_path(udev), 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(udev, "kernel seqnum = %llu\n", seq_kernel);
-
- /* make sure all kernel events have arrived in the queue */
- if (seq_udev >= seq_kernel) {
- info(udev, "queue is empty and no pending events left\n");
- rc = 0;
- goto exit;
- }
+ if (udev_queue_get_queue_is_empty(udev_queue))
+ break;
usleep(1000 * 1000 / LOOP_PER_SECOND);
- info(udev, "queue is empty, but events still pending\n");
}
-
+ if (loop <= 0) {
+ struct udev_list_entry *list_entry;
+
+ if (!quiet) {
+ info(udev, "timeout waiting for udev queue\n");
+ printf("\ndevadm settle timeout of %i seconds reached, the event queue contains:\n", timeout);
+ udev_list_entry_foreach(list_entry, udev_queue_get_queued_list_entry(udev_queue))
+ printf(" %s (%s)\n",
+ udev_list_entry_get_name(list_entry),
+ udev_list_entry_get_value(list_entry));
+ }
+ rc = 1;
+ }
exit:
+ udev_queue_unref(udev_queue);
return rc;
}
~ianmdlvl / elogind.git / blobdiff