RFC: autodie behaviour with flock() ?

[Paul Fenwick <pjf@perltraining.com.au>]

G'day p5p,

Quick sanity check.  I'm adding flock() support to autodie, and I intend it
to have the following behaviour:

	* When called with an invalid or unopened filehandle, autodying
	  flock will always produce an error.  Otherwise:

	* When called in blocking mode, autodying flock will throw an
	  exception on any failure.

	* When called in non-blocking mode (with LOCK_NB), the error
	  value of flock() is not checked.

My reasoning here is that calling flock() in blocking mode means "I need
this lock", whereas calling it in non-blocking mode is a question: "Can I
get this lock right now?"

If you spot a problem with this plan, or have a better plan, please let me know.

Many thanks,

	Paul

-- 
Paul Fenwick <pjf@perltraining.com.au> | http://perltraining.com.au/
Director of Training                   | Ph:  +61 3 9354 6001
Perl Training Australia                | Fax: +61 3 9354 2681

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Follow-Ups from:

Ben Morrow <ben@morrow.me.uk>
Zefram <zefram@fysh.org>
Paul Fenwick <pjf@perltraining.com.au>

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