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flock() question

Subject: flock() question
From: alex at pennace.org (Alex Pennace)
Date: Thu, 18 Apr 2002 11:50:07 -0400
In-reply-to: <Pine.LNX.4.44.0204181137490.4770-100000@kramer.thekramers.net>
References: <Pine.LNX.4.44.0204181137490.4770-100000@kramer.thekramers.net>

On Thu, Apr 18, 2002 at 11:39:03AM -0400, David Kramer wrote:
> If I use the UNIX call flock() to lock a file, then someone tries to 
> append to that file like
> 	ps >> myfile
> or
> 	ps > myfile
> 
> Will the OS and shell respect the lock and block the write?

No. flock() is an advisory lock, intended to be used with cooperating
processes.

References:
- flock() question
  - From: david at thekramers.net (David Kramer)

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