问题
I have two processes: a producer which pushes messages via ZMQ to a consumer in a simple PULL-PUSH point-to-point pattern. The producer has several internal threads that send() via zmq. However, 0MQ's docs suggest not to share sockets between threads.
Must I use a single thread to send?
Assuming there is no strict requirement for keeping the sending order between the threads, doesn't the fact that the socket is a one-directional simplex allow multiple threads to use it without introducing locks?
回答1:
The easiest thing to do is to create a separate PUSH socket on each of producer's threads and connect all these sockets to a single PULL socket in consumer.
It's explicitly stated in the guide that ZeroMQ sockets must be used on a single thread. I'd say that violating this requirement is not a good idea, even if it seems to work: things may break in the next version of the library or on some specific platform or in some specific load scenario. So, it's just too risky.
来源：https://stackoverflow.com/questions/17639468/zmq-can-multiple-threads-push-in-a-simple-push-pull-pattern