From: "Stéphane Glondu" <steph@glondu.net>
To: Tim Hanson <sideskate@gmail.com>
Cc: caml-list@inria.fr
Subject: Re: [Caml-list] Lwt try_bind question...
Date: Tue, 03 Nov 2009 08:46:45 +0100 [thread overview]
Message-ID: <4AEFDFE5.2030004@glondu.net> (raw)
In-Reply-To: <9d2084740911022107g3ea468c3xa5b34a38258dfd40@mail.gmail.com>
Tim Hanson a écrit :
> I've been trying to use Lwt in my application (robot control). [...]
Hummm... How familiar :-)
> I compile with the following line:
> ocamlfind ocamlc -c -package lwt,lwt.unix,lwt.syntax -syntax camlp4o relay.ml
Try instead:
ocamlfind ocamlc -c -package lwt,lwt.unix,lwt.syntax -syntax camlp4o
-syntax lwt.syntax toto.ml
Or just:
ocamlfind ocamlc -c -package lwt,lwt.unix toto.ml
If you don't use Lwt's syntax extensions. But there is a type error in
your code:
> try_bind
> (fun () -> (Lwt_unix.read banger_socket buffer 0 512))
> (fun n -> read_banger n )
> (fun _ -> (Lwt_unix.sleep 3.0) >>= read_banger 0 )
It should be ">>= fun () -> read_banger 0" (in plain OCaml), or ">>
read_banger 0" (with the camlp4 extension).
Cheers,
--
Stéphane
prev parent reply other threads:[~2009-11-03 7:46 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-11-03 5:07 Tim Hanson
2009-11-03 7:46 ` Stéphane Glondu [this message]
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