"

 COPYRIGHT (c) 1995 by Claus Gittinger

	      All Rights Reserved

 This software is furnished under a license and may be used

 only in accordance with the terms of that license and with the

 inclusion of the above copyright notice.   This software may not

 be provided or otherwise made available to, or used by, any

 other person.  No title to or ownership of the software is

 hereby transferred.

"

"{ Package: 'stx:libbasic2' }"

MessageSend subclass:#MessageChannel

	instanceVariableNames:''

	classVariableNames:''

	poolDictionaries:''

	category:'Kernel-Methods'

!

!MessageChannel class methodsFor:'documentation'!

copyright

"

 COPYRIGHT (c) 1995 by Claus Gittinger

	      All Rights Reserved

 This software is furnished under a license and may be used

 only in accordance with the terms of that license and with the

 inclusion of the above copyright notice.   This software may not

 be provided or otherwise made available to, or used by, any

 other person.  No title to or ownership of the software is

 hereby transferred.

"

!

documentation

"

    MessageChannel provides the same functionality as MessageSend.

    It has been provided for ST-80 compatibility.

    Like with MessageSend, instances of MessageChannel can be used for 

    simulation programs.

    They keep some receiver and selector and can be evaluated at any time later.

    (think of them as a cheaper alternative to blocks).

    In contrast to MessageSend, MessageChannels expect arguments to be passed

    if all sends are going to the same receiver, use:

    example:

	|q|

	q := Queue new:120.

	1 to:100 do:[:i |

	    q nextPut:(MessageChannel receiver:i selector:#+).

	].

	[q notEmpty] whileTrue:[

	    |m|

	    m := q next.

	    (m value:1) printNL.

	].

"

! !

!MessageChannel class methodsFor:'instance creation'!

receiver:r selector:sel

    ^ super receiver:r selector:sel arguments:nil

! !

!MessageChannel methodsFor:'evaluation'!

value

    "evaluate the messagesend with the original arguments"

    ^ receiver perform:selector

! !

!MessageChannel class methodsFor:'documentation'!

version

    ^ '$Header: /cvs/stx/stx/libbasic2/MessageChannel.st,v 1.5 2003-08-29 19:21:23 cg Exp $'

! !