netdev - Re: [PATCH 1/1] [QPOLICY]: Ignore packets with specific priority

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Date:	Thu, 6 Nov 2008 16:21:02 +0100
From:	Gerrit Renker <gerrit@....abdn.ac.uk>
To:	Tomasz Grobelny <tomasz@...belny.oswiecenia.net>
Cc:	Arnaldo Carvalho de Melo <acme@...hat.com>, dccp@...r.kernel.org,
	netdev@...r.kernel.org
Subject: Re: [PATCH 1/1] [QPOLICY]: Ignore packets with specific priority

| What about using select() call to get the effect of waiting? I think that 
| select() is precisely designed for such a thing. It is generally used on 
| reading from sockets so it could be used on writing to sockets as well. I 
| haven't looked at the code yet to know how complicated it might be to 
| implement but it seems to be a nice idea to consider.
| 
I think select() will give us similar problems - it is this very old BSD socket
interface. 

To me Posix asynchronous I/O seems to be a highly promising idea here, since it is
possible to submit a packet and then have the kernel call you back to confirm
that it has been dispatched.

I don't know the full state of AIO, it recently popped up in a configuration
menu,  http://lse.sourceforge.net/io/aio.html
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