Re: [Chicken-users] tcp-read-timeout: procedure or parameter?

[Peter Bex]

On Tue, Jun 24, 2008 at 08:26:00AM +0200, felix winkelmann wrote:
> A parameter is a special kind of procedure. You access it like this:
> 
> (tcp-read-timeout) -> <timeout-value>
> (tcp-read-timeout <new-value>)

Chicken has an implementation of SRFI-39: Parameter Objects of which
you can find docs at http://srfi.schemers.org/srfi-39/srfi-39.html

tcp-read-timeout is a parameter.  This also means you can do something
like have temporary timeout values for the duration of a procedure call
using:
(parameterize ((tcp-read-timeout #f)) (do-something))

I hope this clears things up a bit.

Cheers,
Peter
-- 
http://sjamaan.ath.cx
--
"The process of preparing programs for a digital computer
 is especially attractive, not only because it can be economically
 and scientifically rewarding, but also because it can be an aesthetic
 experience much like composing poetry or music."
                                                        -- Donald Knuth

pgpraOMSUCDJR.pgp
Description: PGP signature