From: Anders Fugmann <anders@fugmann.net>
To: Kenneth Adam Miller <kennethadammiller@gmail.com>,
caml users <caml-list@inria.fr>
Subject: Re: [Caml-list] Potential OCaml-ZMQ memory management problems
Date: Thu, 04 Dec 2014 08:55:31 +0100 [thread overview]
Message-ID: <54801373.3010506@fugmann.net> (raw)
In-Reply-To: <CAK7rcp9iRMQo0H1DRo00QRM5bw6psT2kN+pkkcjip9ykrLtL-A@mail.gmail.com>
Hi Kenneth,
The Ocaml-zmq code copies data from received messages into memory under
the control of the ocaml garbage collector, and immediatly frees the ZMQ
buffers.
You do not need to explicitly free the data received from call to recv.
Can you produce a small sample code that exposes the problem? We are
using the ocaml-zmq binding extensively, and have not seen any problems.
If I were to take a wild guess, it either a mismatch between library
versions or the garbage-collector collecting the socket or zmq context.
What version of the ocaml-zmq bindings and libzmq (c impl) are you using?
/Anders
On 12/04/2014 07:09 AM, Kenneth Adam Miller wrote:
> I'm using ocaml-zmq (https://github.com/issuu/ocaml-zmq) and I think I'm
> encountering a memory management issue. I could be wrong however, but
> basically the issue (I think) is I have a rather large set of messages
> to send via zmq, and I'm getting a segfault.
>
> Does anybody know if I need to free the strings received from zmq recv
> functions in ocaml? If so how do I do that from ocaml?
>
> There's no code because this is just a general novice ocaml questions.
next prev parent reply other threads:[~2014-12-04 7:55 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-12-04 6:09 Kenneth Adam Miller
2014-12-04 7:55 ` Anders Fugmann [this message]
2014-12-04 8:02 ` Kenneth Adam Miller
2014-12-04 9:59 ` Anders Fugmann
2014-12-04 10:04 ` Kenneth Adam Miller
2014-12-04 16:39 ` Kenneth Adam Miller
2014-12-04 16:45 ` Kenneth Adam Miller
2014-12-04 19:36 ` Anders Peter Fugmann
2014-12-04 21:48 ` Kenneth Adam Miller
2014-12-05 9:14 ` Anders Fugmann
2014-12-05 14:38 ` Kenneth Adam Miller
2014-12-08 18:11 ` Kenneth Adam Miller
2014-12-08 18:16 ` Yotam Barnoy
2014-12-08 18:19 ` Kenneth Adam Miller
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