[Ecls-list] [usocket-devel] ECL problem

[Chun Tian]

Hi, Matthew

Thanks, I think you're right. ECL's related internal functions which  
calling getsockopt(2)/setsockopt(2) assume the socket level is always  
"SOL_SOCKET" and didn't leave space for "IPPROTO_TCP". I made a patch  
to make those internal functions more general and now I can use this  
definition instead:

(define-sockopt sockopt-tcp-nodelay "IPPROTO_TCP" "TCP_NODELAY" bool)

Using the patch, now I didn't met any error on Linux, but I doubt if  
the TCP_NODELAY option is really set correctly ...

I hope ECL maintainers could have a look at my patch and consider  
merge it in some way.

Regards,

Chun Tian (binghe)

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? 2009-10-17?11:06? Matthew Mondor ???

> On Sat, 17 Oct 2009 03:24:08 +0800
> Chun Tian <binghe.lisp at gmail.com> wrote:
>
>> One of our usocket user found a strange issue of ECL (9.10.2)'s
>> network function SB-BSD-SOCKETS:SOCKOPT-TCP-NODELAY:
>>
>>> (describe 'sb-bsd-sockets::sockopt-tcp-nodelay)
>
> Unless I'm mistaken, one problem which I can immediately see is that
> getsockopt(2)/setsockopt(2) calls always use SOL_SOCKET, when the
> TCP_NODELAY option is TCP protocol specific and must instead use 6 (or
> what a previous/initialization call to getprotobyname(3) returns for
> "TCP")...
> --  
> Matt
>
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