[sane-devel] Stuck somehow in porting to Win98/ASPI

Henning Meier-Geinitz henning at meier-geinitz.de
Fri Jul 15 18:36:55 UTC 2005


On Fri, Jul 15, 2005 at 12:48:32PM +0200, Richard Metzger wrote:
> Please, what is the design here? Shouldn't the child block the pipe,
> so that the parent only returns from read(), when the child wants it
> to?

Parent: create pipe, fork, close writing side of pipe, wait for data
        from reading side of pipe
Child:  close reading side of pipe, send data to writing side, when
        finished close writing side
Parent: when writing side is closed by child, close also reading side	


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