Re: libuv based http server for Guile

[Nala Ginrut]

Hi Shiv!

Shiv Shankar Dayal writes:

> Hi,
>
> I saw on GNU Guile mailing list that you are interested in a libuv based
> http server for GNU Guile. libh2o is a libuv based http server as you might
> know. I think that we can access it using FFI for GNU Guile.
> Please let me know your thoughts on this.

First, I'm glad that someone is interested in an alternative server-core
of GNU Artanis. To gain more interestes, let me CC this mail to
address@hidden.

Here's my short answer:

I'd like to make GNU Artanis more general to support replaceable HTTP
server-core as a plugin. This requires standardize the low-level APIs,
which implies bigger works. But it's worth to go.

FWIW, there're some points that we should care about:
1. Ragnarok is co-routine based, so the current GNU Artanis has no
support for multi-threading. That is to say, no any locks. However, I'd
like to support multi-threading server-core as well. And I wrapped the
low-level data accessing with an abstract layer, so that we may add
locks without changing too many codes.

2. I've read a little libuv code before, the exported APIs seem not
general enough for us. I don't remember it exactly, but I've ever taken
a look at it for other purpose, finally we have to choose libevent.

3. I hope the folks who is interested in multi-threading server-core
start to research it. But I'd recommend not so hurry to make the hands
dirty, it's better to discuss in address@hidden first.

4. For FFI part, I have a macro in (artanis utils) that I'm using for
binding libnss currently:
https://gitlab.com/NalaGinrut/artanis/blob/master/artanis/utils.scm#L1594
The usage is simple:
-----------------code---------------------
(eval-when (eval load compile)
(ffi-binding "libnss3"
(define-c-function int NSS_Init ('*))
...
))
-----------------end----------------------
Then there's %NSS_Init, one have to do some validation to write a
function like nss:init or else.

4. I'll write an article about the roadmap of GNU Artanis-1.0. There'll
be more details about the plan. (Not only server-core).

Best regards.


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