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Clarify fcntl(2) and flock(2) interoperability.

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PR:		docs/23353
Reviewed by:	ru, dillon
Approved by:	ru
MFC after:	3 days
This commit is contained in:
Maxim Konovalov 2002-03-14 11:02:35 +00:00
parent 0323b941f0
commit 999ad26edb
1 changed files with 7 additions and 1 deletions
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8
lib/libc/sys/fcntl.2
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@ -335,7 +335,13 @@ Note that
.Xr flock 2
and
.Xr fcntl 2
locks may be safely used concurrently.
locks may be safely used concurrently but
.Fn fcntl F_GETLK
returns \-1 in
.Fa l_pid
if the process holding a blocking lock previously locked the
file descriptor by
.Xr flock 2 .
.Pp
All locks associated with a file for a given process are
removed when the process terminates.