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udevadm: settle - exit if udevd exits

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This commit is contained in:
Kay Sievers 2008-11-06 19:41:58 +01:00
parent 78230c0dbe
commit 11d5eec2cb
3 changed files with 20 additions and 1 deletions
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1
udev/lib/exported_symbols
View File

@ -59,6 +59,7 @@ udev_queue_unref
udev_queue_get_udev
udev_queue_get_kernel_seqnum
udev_queue_get_udev_seqnum
udev_queue_get_udev_is_active
udev_queue_get_queue_is_empty
udev_queue_get_seqnum_is_finished
udev_queue_get_queued_list_entry

19
udev/lib/libudev-queue.c
View File

@ -133,6 +133,20 @@ unsigned long long int udev_queue_get_udev_seqnum(struct udev_queue *udev_queue)
return seqnum;
}
int udev_queue_get_udev_is_active(struct udev_queue *udev_queue)
{
char filename[UTIL_PATH_SIZE];
struct stat statbuf;
if (udev_queue == NULL)
return 0;
util_strlcpy(filename, udev_get_dev_path(udev_queue->udev), sizeof(filename));
util_strlcat(filename, "/.udev/uevent_seqnum", sizeof(filename));
if (stat(filename, &statbuf) == 0)
return 1;
return 0;
}
int udev_queue_get_queue_is_empty(struct udev_queue *udev_queue)
{
char queuename[UTIL_PATH_SIZE];
@ -152,7 +166,10 @@ int udev_queue_get_queue_is_empty(struct udev_queue *udev_queue)
dbg(udev_queue->udev, "queue is empty\n");
return 1;
}
udev_queue_get_udev_seqnum(udev_queue);
/* update udev seqnum, and check if udev is still running */
if (udev_queue_get_udev_seqnum(udev_queue) == 0)
if (!udev_queue_get_udev_is_active(udev_queue))
return 1;
if (seqnum_kernel <= udev_queue->last_seen_udev_seqnum) {
dbg(udev_queue->udev, "queue is empty\n");
return 1;

1
udev/lib/libudev.h
View File

@ -113,6 +113,7 @@ extern void udev_queue_unref(struct udev_queue *udev_queue);
extern struct udev *udev_queue_get_udev(struct udev_queue *udev_queue);
extern unsigned long long int udev_queue_get_kernel_seqnum(struct udev_queue *udev_queue);
extern unsigned long long int udev_queue_get_udev_seqnum(struct udev_queue *udev_queue);
extern int udev_queue_get_udev_is_active(struct udev_queue *udev_queue);
extern int udev_queue_get_queue_is_empty(struct udev_queue *udev_queue);
extern int udev_queue_get_seqnum_is_finished(struct udev_queue *udev_queue, unsigned long long int seqnum);
extern struct udev_list_entry *udev_queue_get_queued_list_entry(struct udev_queue *udev_queue);