Adding SCTP support to the VM/Network-Kernel

Hi,

I require SCTP support for my work. I have implemented very basic
support in the unix version of the SocketPlugin[1], made modifications
to the CMake generation, the VMMaker part of the SocketPlugin and the
Network-Kernel. Basic manual testing shows that I can open a connection
read/write using the normal and specialized selectors. The Smalltalk bits
can be found here[2].

What is the process to get a feature like this integrated? Is there
a precedence of emitting CMake rules to check for libraries/headers
to be present?

holger


[1] https://gitorious.org/~zecke/cogvm/zeckes-cogvm/commit/24bb6fd2c1666137356754049f03ca5f246711d7
[2] http://smalltalkhub.com/#!/~hfreyther2/sctp/source

> Hi,
>
> I require SCTP support for my work. I have implemented very basic
> support in the unix version of the SocketPlugin[1], made modifications
> to the CMake generation, the VMMaker part of the SocketPlugin and the
> Network-Kernel. Basic manual testing shows that I can open a connection
> read/write using the normal and specialized selectors. The Smalltalk bits
> can be found here[2].

Thanks a lot :)
>
> What is the process to get a feature like this integrated? Is there
> a precedence of emitting CMake rules to check for libraries/headers
> to be present?

- publish it on git
- have some tests
- send a mail to the mailing-list
- sign the license agreements
- enter a bug entry
- sync with esteban and igor.

> holger
>
>
> [1] https://gitorious.org/~zecke/cogvm/zeckes-cogvm/commit/24bb6fd2c1666137356754049f03ca5f246711d7
> [2] http://smalltalkhub.com/#!/~hfreyther2/sctp/source
>

On 29 January 2013 12:21, Holger Hans Peter Freyther <[hidden email]> wrote:
> Hi,
>
> I require SCTP support for my work. I have implemented very basic
> support in the unix version of the SocketPlugin[1], made modifications
> to the CMake generation, the VMMaker part of the SocketPlugin and the
> Network-Kernel.
<snip>

I'm very interested in seeing SCTP support in _all_ the VMs. Would you
mind telling vm-dev about your work?

frank

> holger

On 29 January 2013 18:52, Stéphane Ducasse <[hidden email]> wrote: yes, we need some tests and examples.
because i am completely ignorant about this protocol, and i don't know
if it will work
or not by just looking at code (regardless that the code looks fine to me :) ).

>> holger
>>
>>
>> [1] https://gitorious.org/~zecke/cogvm/zeckes-cogvm/commit/24bb6fd2c1666137356754049f03ca5f246711d7
>> [2] http://smalltalkhub.com/#!/~hfreyther2/sctp/source
>>
>
>



--
Best regards,
Igor Stasenko.

On Fri, Feb 08, 2013 at 04:18:30PM +0200, Igor Stasenko wrote:

> yes, we need some tests and examples.

sure. The issue is that not every OS is supporting SCTP. Can you point
me to a test that is skipped depending on VM support? I will then update
the package.

holger

On Fri, Feb 08, 2013 at 01:24:58PM +0000, Frank Shearar wrote:

Dear Frank,

> I'm very interested in seeing SCTP support in _all_ the VMs. Would you
> mind telling vm-dev about your work?

I am afraid that you have lost me. I assume vm-dev is a mailinglist? Could
you point me to mailinglist archive/info page? What kind of information do
you need?

holger

On Fri, Feb 08, 2013 at 04:18:24PM +0100, Holger Hans Peter Freyther wrote:
> On Fri, Feb 08, 2013 at 04:18:30PM +0200, Igor Stasenko wrote:
>
> > yes, we need some tests and examples.
>
> sure. The issue is that not every OS is supporting SCTP. Can you point
> me to a test that is skipped depending on VM support? I will then update
> the package.

My smalltalkhub project now has a NetworkTests package. This does not test
the datagram interface (UDP sockets do not appear to be tested with the
SocketTest). This would obviously only work if all systems have SCTP support.

I wonder if I should subclass the SocketTest as SCTPSocketTest and override
the selectors.

holger

On 8 February 2013 15:19, Holger Hans Peter Freyther <[hidden email]> wrote:
Hi Holger,

vm-dev is the official mailing list for people hacking on the virtual
machines: http://lists.squeakfoundation.org/mailman/listinfo/vm-dev

I'm thinking just that you're wanting SCTP at all; that would go a
long way towards getting the extension.

You've already mentioned the problem of platform dependence: while I
know that linux and FreeBSD (and thus presumably the other BSDs)
support SCTP, I don't know whether Windows, OS X, RISC OS or the other
supported platforms do. I'm not suggesting that you implement the
plugin for all these platforms - that would be madness - but by
talking about your needs on vm-dev the other VM maintainers can hear
about your work, suggest improvements, etc.

frank