Why not if you proper handle endianness? Alexander
-----Original Message----- From: zeromq-dev-boun...@lists.zeromq.org [mailto:zeromq-dev-boun...@lists.zeromq.org] On Behalf Of Chuck Remes Sent: Tuesday, November 15, 2011 10:59 PM To: ZeroMQ development list Subject: [zeromq-dev] protocol design question I am working on a protocol for submission to the rfc.zeromq.com site. For one of the fields (message frames) I need to define a unique sequence number. I decided upon a combination of a 64-bit integer and a 16-byte UUID. The UUID would uniquely identify each client. The sequence number would uniquely identify each message from that client. When used together, each message from N clients can be uniquely identified. So, I thought I should define the frame as follows: frame 2 24 bytes total 8 bytes - 64-bit integer (network byte order) 16 bytes - UUID Is it portable to pack them both into the same frame like this? I assume a C user could define a struct to map that frame directly. e.g. struct sequence_id { uint64 number; uchar uuid[16]; }; Is this all right? Or is there a better way to accomplish this framing? cr _______________________________________________ zeromq-dev mailing list zeromq-dev@lists.zeromq.org http://lists.zeromq.org/mailman/listinfo/zeromq-dev _______________________________________________ zeromq-dev mailing list zeromq-dev@lists.zeromq.org http://lists.zeromq.org/mailman/listinfo/zeromq-dev
