> Concepts, Techniques, and Models of Computer Programming (Draft) 
> by Peter Van Roy and Seif Haridi
> http://www.info.ucl.ac.be/~pvr/
> 

June18-2003, Peter Van Roy posted on mozart-oz.users 
( news.mozart-oz.org )

<QUOTE>

Dear all,

Regarding the book 'Concepts, Techniques, and Models of Computer
Programming', MIT Press has graciously allowed us to keep it on
the Web site until the book actually appears in print.  The
current Web version is the actual version to be published.
The printed version will differ only in correction of
grammatical errors and formatting changes.  The Web version has
all chapters complete and many corrections compared to the
previous draft (from April 26).  So if you are interested in a
free copy, now's the time to download it.

Regards,

Peter

</QUOTE>

----- Original Message ----- 
From: "Anthony Hannan" <ajh18 at cornell.edu>
To: <squeak-dev at lists.squeakfoundation.org>
Sent: Saturday, June 14, 2003 1:27 AM
Subject: Re: Fun article


> Steve Dekorte <steve at dekorte.com> wrote:
> > Also, I'm not sure what they mean by "dataflow" communication here.
> 
> They probably mean communication through dataflow variables.  I learned
> about these from a good book that Andrew Cooke recommended on this list
> about a month ago:
> 
> Concepts, Techniques, and Models of Computer Programming (Draft) 
> by Peter Van Roy and Seif Haridi
> http://www.info.ucl.ac.be/~pvr/
> 
> In short, a dataflow variable can only be assigned once.  Before that it
> is unbound.  Any thread that reads an unbound variable will wait until
> the variable is bound by another thread.  Thus providing syncronized
> dataflow from one thread to another, automatically.
> 
> Cheers,
> Anthony
> 
>