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Re: TCP (or UDP) daytime client in Smalltalk


From: address@hidden
Subject: Re: TCP (or UDP) daytime client in Smalltalk
Date: Thu, 4 Jun 2020 17:36:48 +0200 (CEST)

The docs have an incorrect reference:

https://www.gnu.org/software/smalltalk/manual/html_node/Network-support.html#Network-support

if you click on " Network programming with Sockets " that link is broken.

I've tried the following:

Eval [

PackageLoader fileInPackage: 'Sockets'.
PackageLoader fileInPackage: 'NetClients'.

s _ Socket remote:(SocketAddress createLoopbackHost) port:13.
(s upTo: Character cr) printNl.
s close.

]

This fails:

Object: nil error: did not understand #createLoopbackHost
MessageNotUnderstood(Exception)>>signal (ExcHandling.st:254)
UndefinedObject(Object)>>doesNotUnderstand: #createLoopbackHost 
(SysExcept.st:1408)
UndefinedObject>>executeStatements (daytime.st:7)


Apparently it does not know about the SocketAdress class (subclass of
IPAddress).  There must be some other way apparently to load that class.

Shouldn't loading the packages be sufficient to get the SocketAdress class ?

David



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