Hi Jay,
this is for you
http://zguide.zeromq.org/page:all#Getting-the-Context-Right
//Kevin
On Mi, Dez 21, 2016 at 4:49 , Jay Rolette <[email protected]> wrote:
I recently started using czmq and have run into a problem with the
global zmq context it uses when the process forks...
If the parent process does anything to cause the global context to be
created prior to forking, the child process is unable to send/recv
messages. That's not too surprising since zmq contexts aren't
shareable across processes, but I've been looking through the czmq
code for a way to destroy/recreate the global context in the child
process and not finding an obvious way to do that.
In older versions of czmq, it looks like I probably could have used
zctx_* calls to create a new context, but those were removed. Not
seeing anything similar in zsock_* or zsys_*.
Details about the behavior I'm seeing in the child process:
zmsg_send() returns success, but nothing is received on the server
side. On the client, the subsequent call to zmsg_recv() never returns.
This is on Ubuntu 14.04 LTS, czmq 4.0.1, libzmq 4.2 with pretty basic
REQ/REP sockets.
Is there anyway to stick with czmq for this or do I have to back off
to vanilla zmq?
Thanks,
Jay
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