[zeromq-dev] multipart messages in a realtime environment

[Goswin von Brederlow]

On Wed, Apr 16, 2014 at 08:07:27PM +0200, Michael Haberler wrote:
> we're using zeroMQ in machinekit (formerly LinuxCNC)
> 
> to retain the end-to-end principle, we need to be able to send multipart messages to and from RT threads
> 
> that isnt possible with libzmq code since it's C++ and uses dynamic memory allocation
> 
> the code which we'll be using is based on a lock-free ringbuffer in shared memory (ring_*), and a multipart framing layer on top of that (bring_*): http://psha.org.ru/cgit/psha/ring/?h=wip-buffer
> 
> a proxy thread at the RT boundary translates from zmq to ringbuffer framing and back
> 
> just in case somebody has a similar requirement
> 
> - Michael

doesn't zero-copy fix that?

MfG
	Goswin