HI , everyone! I'm just learning the ZMQ, and reading the guid.
Now I'm really confused by the message envelope. In the section "The DEALER to REP Combination" of chapter 3 , the guide said we should "emulate the envelope" by ourself. In the sample "rtreq: ROUTER-to-REQ", the code also construct the envelope when switch the messages between the ROUTE and REQ socket. But in the example "rrworker, rrclient, rrborker " and "mtserver" , the code didn't construct the message envelope, and just send the data. Especially, in the rrbroker and rrworker , it's alse the DEALER to REP combination ,why it didn't construct the envelope? So my question is when I need construct the envelope by myself? And why some example didn't do it and some do it, what's the different? Thank you so much! Best regards! Chu
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