[zeromq-dev] FileMQ Manual Send/Recv + Symbolic Link

[Pieter Hintjens]

OK, so there were two problems, caused by moving fmq_file into CZMQ
and losing some functionality:

* symbolic links didn't work any more
* changed files weren't properly detected.

I've fixed both in CZMQ, so you'll want to grab the new master when
the last pull request is merged.

https://github.com/zeromq/czmq/pulls

-Pieter

On Mon, Sep 30, 2013 at 11:45 AM, Pieter Hintjens <ph at imatix.com> wrote:
> On Mon, Sep 30, 2013 at 11:24 AM, HG Choi <c.hogyun at gmail.com> wrote:
>
>> I guess bottom line, I want to work around the directory staging in FileMQ.
>> The "Drag and Drop", implementation is very well done and easy to use, but
>> in the edge case where a previously sent file in the send directory is just
>> replaced, not deleted and written over/appended, by a newer edition but with
>> the same file name, the server will not recognize this.
>
> Are you replacing an old file with a new one with different size and
> modified date? It should detect that. I'll test it.
>
>> That is why I would like the option of being able to manually send and
>> receive files located in path "/X" by method calls, completely autonomous
>> from the current patch system and I think the mounting system..
>
> Right, symbolic links were meant to handle this. I see that I've
> completely dropped that functionality by mistake, when replacing
> fmq_file with zfile. I'll add that back into zfile.
>
> Using symbolic links, you create a link file in a staging directory
> (in the FileMQ tree), and that is then resolved to the full file,
> which is sent and arrives in the same staging directory on clients.
>
> -Pieter