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echo: os2prog
to: Bill Oconnor
from: Dean Roddey
date: 1994-10-23 05:19:20
subject: named pipes

Thanks Bill for your msg about named pipes, on 20 10-20-1994

There is definitely a limit on named pipes that are remote
because they are limited by the maximums of the underlying
transport protocol I assume. Most protocols can only support so
many connection oriented links at a time. If all of the named
pipes are local, that limitation should not apply (because I'm
assuming that the OS is smart enough to recognize a local named
pipe and use a memory based ring buffer like for anonymous pipes.)
But you would probably run into more practical limits before you
hit the theoritical limit. There are something like 64K maximum
file handles per process (theoritically) and named pipe handles
come from pool as far as I know, though I could be wrong about
that.

___
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