Re: Seekable pipes

[Jan Engelhardt]

>Hello,
>
>I want to implement an interface for seekable pipes
>(and FIFOs) in the Linux kernel.  The basic idea of
>this is that when the reader issues a seek(), this
>information can be passed onto the writer, who will
>continue writing from the new location. Since the
>reader doesn't have to do anything special, this
>allows user-space programs to simulate real files,
>providing features such as network filesystems and
>database large-objects, all in user space.

Why not simply create two pipes, and use one for the data (from writer to
reader) and the other for control (r->w)? Then you would not need to poke with
the kernel after all.



Jan Engelhardt
-- 
Gesellschaft fÃr Wissenschaftliche Datenverarbeitung
Am Fassberg, 37077 GÃttingen, www.gwdg.de
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