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From: "LiteStar numnums" <litestar@gmail.com>
To: "Fans of the OS Plan 9 from Bell Labs" <9fans@cse.psu.edu>
Subject: Re: [9fans] OT: cannonical set of queue ops
Date: Wed,  6 Dec 2006 17:36:19 -0500	[thread overview]
Message-ID: <283f5df10612061436i5179e5f7mc7930ebf1f3ec280@mail.gmail.com> (raw)
In-Reply-To: <676c3c4f0612060835x414a779ao6e1f5fcbe021aba9@mail.gmail.com>

>For instance, if IsQueueEmpty returns "true", that answer isn't worth
very much if, by
> the time you act on that information, some other thread could have
> added an item to the queue.

Wouldn't it be natural for such a function to block the active thread
until the desired
result is achieved? Since this clean up thread wouldn't really need to
be on a hard deadline, wouldn't WaitQueueEmpty make more sense then a
IsQueueEmpty? The writer may be more difficult, but again, if the
Queue is full, it must wait anyway, so blocking here wouldn't be too
problematic, methinks.

-- 
If work and leisure are soon to be subordinated to this one utopian
principle -- absolute busyness -- then utopia and melancholy will come
to coincide: an age without conflict will dawn, perpetually busy --
and without consciousness.

 -- Günter Grass


  reply	other threads:[~2006-12-06 22:36 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-12-06 16:14 Steve Simon
2006-12-06 16:35 ` Richard Bilson
2006-12-06 22:36   ` LiteStar numnums [this message]
2006-12-06 22:58     ` Richard Bilson
2006-12-07  0:07       ` David Leimbach
2006-12-07 21:37 ` Russ Cox

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