[usocket-devel] UDP receive timeout parameter (LispWorks)

[Kamil Shakirov]

Hi Chun,

On Wed, 2010-12-08 at 14:30 +0800, Chun Tian (binghe) wrote:
> Hi, there
> 
> So, you want to override the default read time (when creating the usocket) sometime when you're calling SOCKET-RECEIVE. OK, extra keyword parameter is just for platform specific needs, you patch accepted as r571.

Thanks. In the current API neither socket-connect nor socket-receive
methods use a timeout parameter for a datagram socket in LispWorks
backend.

> But if you take a look at my implementation of SOCKET-RECEIVE, you'll find the "temp" TIMEOUT keyword argument will be set into underlying socket by "setsockopt", and the previous default value will be set back when SOCKET-RECEIVE finishing it's work.  Due to such double costs, I think this feature should not be used to much.
> In next USOCKET versions, I'll provide a SOCKET-OPTION generic function to be able to set most socket options (include RCVTIMEO) after sockets were created, I hope this could fit your needs better.

That would be the best way to control socket options. 

> 
> --binghe
> 
> 在 2010-12-8，13:31， Kamil Shakirov 写道：
> 
> > Hi List,
> > 
> > As datagram socket-receive generic function allows to pass extra key
> > parameters, would it be possible to add extra timeout parameter for
> > LispWorks backend? The attached patch adds this feature.
> > 
> > 
> > --ska
> > <0001-Receive-timeout.patch>_______________________________________________
> > usocket-devel mailing list
> > usocket-devel at common-lisp.net
> > http://common-lisp.net/cgi-bin/mailman/listinfo/usocket-devel
> 

--ska