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From: jon@CS.UCL.AC.UK (Jon Crowcroft)
Newsgroups: comp.protocols.tcp-ip
Subject: Asyncio on Sockets
Message-ID: <8707031252.AA19327@ucbvax.Berkeley.EDU>
Date: Fri, 3-Jul-87 08:53:26 EDT
Article-I.D.: ucbvax.8707031252.AA19327
Posted: Fri Jul  3 08:53:26 1987
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I know this is a Unix question and not really appropriate here,
but Berkeley and Sun people seem to read this list a lot.

Has anyone found problems setting async io on a RAW IP socket?
Under 3.2 on a Sun, it just doesn't seem to work; at least I
never get a SIGIO even when I see packets (using a net wathcer)
arriving at the machine. The manual pages and tutorials are somewhat
thin in this area.

Also, when using asyncio on a UDP socket, the process doesn't
get a SIGIO unless it has had another signal first.

Jon