"{ Package: 'stx:goodies/xtreams/terminals' }"

"{ NameSpace: Xtreams }"

WriteStream subclass:#SharedQueueWriteStream

	instanceVariableNames:'contentsSpecies'

	classVariableNames:''

	poolDictionaries:''

	category:'Xtreams-Terminals'

!

SharedQueueWriteStream comment:'Write stream on a SharedQueue. Primarily used for data transfer between processes.

{{{

	queue := SharedQueue new.

	in := queue reading.

	out := queue writing.

	received := Array new writing.

	done := Semaphore new.

	consumer :=	

		[ | size |

			[	(size := in get) isZero

			] whileFalse: [ | word |

				word := ByteString new: size.

				in read: size into: word.

				received put: word ].

			done signal.

		] fork.

	#(one two three four) do: [ :word | out put: word size; write: word ].

	out put: 0.

	done wait.

	received conclusion

}}}

Instance Variables

	contentsSpecies	<Class> species for collections of elements of this stream

'

!

!SharedQueueWriteStream methodsFor:'accessing'!

write: anInteger from: aSequenceableCollection at: startIndex

	startIndex to: startIndex + anInteger - 1 do: [:index | destination nextPut: (aSequenceableCollection at: index)].

	^anInteger

! !

!SharedQueueWriteStream methodsFor:'initialize-release'!

close

!

contentsSpecies

	^contentsSpecies

!

contentsSpecies: aClass

	contentsSpecies := aClass

!

flush

!

on: aDestination

	super on: aDestination.

	contentsSpecies := Array

! !

!SharedQueueWriteStream class methodsFor:'documentation'!

version_SVN

    ^ '$Id$'

! !