Hi, everyone
In ZMQ guide http://zguide.zeromq.org/page:all, I read:
From ØMQ v3.x, filtering happens at the publisher side when using a connected
protocol (tcp: or ipc:). Using the epgm:// protocol, filtering happens at the
subscriber side. In ØMQ v2.x, all filtering happened at the subscriber side.
So, I need to implement this scenario:
1. In publisher side: PUB
2. In subscriber side: SUB1, SUB2
3. PUB can send characters from A to Z.
4. SUB1 ONLY receive C character
SUB2 ONLY receive D character.
How to setup PUB side filter which can send C to SUB1 and D to SUB2?
This is like that a mailbox only receive his newspapers or magazines, not
receive all mails and "filter" by itself. I wander PUB side filter is that
clever postman :)
If filtering happens at sub side, PUB will send all the message(A-Z characters)
to all the SUBs, which occupy too much network resource and be not efficient.
Anyone can help?
Thanks
Roy._______________________________________________
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