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From: steved@pacifier.com (Steve Doiel)
Subject: Re: Tasking Techniques - Opinions?
Date: 1997/06/07
Message-ID: <5nahlk$oln$1@news.pacifier.com>#1/1
X-Deja-AN: 246696877
References: <5n2hjr$ohm$1@news.pacifier.com> <3394EC73.3011@bix.com>
Organization: Pacifier Online Data Service, Vancouver, Wa.  ((360) 693-0325)
Newsgroups: comp.lang.ada
Date: 1997-06-07T00:00:00+00:00
List-Id: <comp.lang.ada>


In article <3394EC73.3011@bix.com>, tmoran@bix.com says...
>
>> A third
>> module contains a "send task" that is in a short loop that
>> removes entries from the send queue, transmits the data out the
>> socket and then returns the packet buffer to the free pool.
>What does this task do if there's nothing to send?  Does it sit and eat
>CPU or is there some way it can go to sleep and be awakened when there's
>work to do, or is it always busy and my question is irrelevant?

The send queue remove operation is contained within an entry to a
protected type that has a guard condition causing the task to pend
if the queue is empty.