From lopes@parc.xerox.com Thu Oct 30 21:03:30 1997
Received: from alpha.xerox.com (alpha.Xerox.COM [13.1.64.93])
	by amber.ccs.neu.edu (8.8.6/8.7.3) with SMTP id VAA12310
	for <lieber@ccs.neu.edu>; Thu, 30 Oct 1997 21:03:28 -0500 (EST)
Received: from sneetch.parc.xerox.com ([13.2.18.231]) by alpha.xerox.com with SMTP id <55841(1)>; Thu, 30 Oct 1997 18:02:25 PST
Received: by sneetch.parc.xerox.com id <177477>; Thu, 30 Oct 1997 18:02:19 PST
Sender: Cristina Lopes <lopes@parc.xerox.com>
From: Cristina Lopes <lopes@parc.xerox.com>
To: Karl Lieberherr <lieber@ccs.neu.edu>
Subject: Re: minimize notifies
In-Reply-To: <199710301435.JAA02893@stockberg.ccs.neu.edu>
References: <199710301435.JAA02893@stockberg.ccs.neu.edu>
Message-Id: <97Oct30.180219pst."177477"@sneetch.parc.xerox.com>
Date: Thu, 30 Oct 1997 18:02:19 PST
Status: R


Karl Lieberherr writes:
> Hi Crista:
> 
> again on page 158.
> 
> I was assuming that the DJ and Java program had the same behavior regarding
> notifications.

They have the same behavior, but not necessarily the same implementation.


> If we would like this, could we change in the method manager for put:
> 
> empty = false;
> 
> to
> 
> if (usedSlots==1) empty=false;
> 
> Then the COOL code should only notify if a condition variable has actually
> changed. Does your implementation do this?

Yes - ideally notifications should be specific to condition variables.
But that's a bit more complex to implement - although not impossible.