Re: [Caml-list] Question about Lwt/Async

[Yaron Minsky <yminsky@janestreet.com>]

Well, Async_rpc_kernel is tied to the Deferred type, so it's not so
general as to abstract over which IO monad is being used.  So I'm
afraid it doesn't give you a nice way of interoperating with Async
programs.

That said, we're hopefully going to do a rewrite of the protocol in
the next few months.  It's not crazy that we could try to make some of
the low level protocol work shareable, at least.

y

On Fri, Mar 11, 2016 at 11:15 AM, François Bobot <francois.bobot@cea.fr> wrote:
> On 11/03/2016 16:22, Yaron Minsky wrote:
>>
>> Not easily at present, I think. Obviously. if you run two runtimes in
>> two threads, you can do it, but it's ugly.  If you had
>> lwt-on-async-runtime available, as was discussed in the thread, then
>> you could do it, but you'd need some extra overhead to create matching
>> pairs of Lwt.t's and Deferred.t's, since those two types would not be
>> equal.
>>
>
> Sorry I don't know if have been clear that I was thinking to make two ocaml
> process communicate together one using Async and the other Lwt. The use case
> for example, is to write a job server with Async and to make a web interface
> for it using ocsigen (Lwt); so the webserver (Lwt) would connect to the job
> server (Async) using the rpc protocol defined by Async_rpc_kernel.
>
>
>> So, with some overhead, yeah, I think you could do it.
>
>
> Does you answer is applicable to this use case?
>
> Thank you already for this answer.
>
> Best,
>
> --
> François