[zeromq-dev] Zero copy messages

Martin Sustrik sustrik at 250bpm.com
Thu Sep 15 17:19:57 CEST 2011


Hi Emmanuel,

> I am using ZMQ 3.0.x  running on a Ubuntu 10.10 box (32 bits).
> I am using the PUB/SUB pattern. The publisher sends multipart messages.
> I am trying to use zero copy messages in the publisher side.
> The buffer I give to the zmq messages are statically allocated. They are
> data member of one object which has the process lifetime.
> Therefore, my free method is empty.
>
> Because it is zero copy, I assume that ZMQ does not copy the buffer
> contents.
> Is it true that I should keep these buffers unchanged until the free
> method is called?

Yes. Exactly.

Martin



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