Ok. I've been trying to get those 5 bytes of the ROUTER generated "identity" into a C++ variable so that it can be stored in memory and used to prepend an outbound message at some later time. Can anyone suggest how the identity data stored in a zmq_msg_t object and pointed to by:
zmq_msg_data(&messageIn) could be stored in a variable which; 1. Is easily printable on the console. 2. Can be simply copied into a zmq_msg_t object to form the identity frame of a message sent via a ROUTER socket. 3. Works without knowing that auto generated identities are of any specific size. Stuck. Riskybiz. Date: Tue, 16 Sep 2014 22:45:52 +0800 From: KIU Shueng Chuan <nixch...@gmail.com> Subject: Re: [zeromq-dev] Trouble sending from ROUTER to DEALER To: ZeroMQ development list <zeromq-dev@lists.zeromq.org> Message-ID: <CAP2skc-a8DXP+v2UhLoo=7c8dCoBk6K69zZVX=6lpszknrn...@mail.gmail.com> Content-Type: text/plain; charset="iso-8859-1" In your multipartmsg.h file, you have code that does the following: int32_t id = *(static_cast<int*>(zmq_msg_data(&messageIn))) You have assumed that the auto generated identity is 4 bytes long, whereas it is in fact 5 bytes long. So when sending a reply, you would have sent a truncated identity, which the router socket know nothing about. More generally, you shouldn't need to write your code to "know" that auto generated identities are of any specific size. -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.zeromq.org/pipermail/zeromq-dev/attachments/20140916/3819b97f/a ttachment-0001.htm ------------------------------
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