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inotify.7: Remind reader of the cookie value in discussion of rename events 

Reported-by: Jan Kara <jack@suse.cz>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
This commit is contained in:
Michael Kerrisk 2014-04-04 09:25:14 +02:00
parent 6f1a495406
commit fa51f4d941
1 changed files with 7 additions and 4 deletions
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man7/inotify.7
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@ -652,14 +652,17 @@ create a new inotify file descriptor,
and then re-create watches and cache entries
for the objects to be monitored.)
.SS Dealing with rename() events
The
As noted above, the
.B IN_MOVED_FROM
and
.B IN_MOVED_TO
events that are generated by
event pair that is generated by
.BR rename (2)
are usually available as consecutive events when reading
from the inotify file descriptor.
can be matched up via their shared cookie value.
However, the task of matching has some challenges.
These two events are usually consecutive in the event stream available
when reading from the inotify file descriptor.
However, this is not guaranteed.
If multiple processes are triggering events for monitored objects,
then (on rare occasions) an arbitrary number of