[zeromq-dev] Dipping into zmq_recv from czmq

[Brian Sellden]

Hi Max,

 

I was looking through this a little… If I use zmsg on the receiving end, do I have to use zmsgs/zframes on the sending end as well?

 

Brian.

From: zeromq-dev [mailto:zeromq-dev-bounces at lists.zeromq.org] On Behalf Of Max Kozlovsky
Sent: Wednesday, May 03, 2017 1:39 PM
To: ZeroMQ development list
Subject: Re: [zeromq-dev] Dipping into zmq_recv from czmq

 

Hi,

 

zmsg_ function can be used to send/receive any kind of data in czmq. 

 

http://czmq.zeromq.org/czmq4-0:zmsg

 

Max

 

On Wed, May 3, 2017 at 8:53 AM, Brian Sellden <brian_ls2 at comcast.net> wrote:

Hello,

 

I’m using czmq to transfer serialized objects in char arrays.  The serialized data may contain nulls, so processing with c-string oriented functions Is a problem.  So using zstr_recv(void*) doesn’t work for me as it returns a char* with no way to identify the length of the array.

 

I thought I might dip into the zmq calls directly so I can use zmq_recv(void* source, void* buf, size_t len, int flags), as it returns the number of bytes copied into the buffer.  But my sockets are created with zsock_new(…), so I’m not sure about the compatibility of these calls.  Am I on the right track with this, and can someone offer some advice on how to proceed?  I did try just putting my zsock_t* into the zmq_recv call, but it just returns -1 even though zpoller_t reports that there is data available on the socket.

 

Thanks –

 

Brian.


_______________________________________________
zeromq-dev mailing list
zeromq-dev at lists.zeromq.org
https://lists.zeromq.org/mailman/listinfo/zeromq-dev

 

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.zeromq.org/pipermail/zeromq-dev/attachments/20170503/ebd38b41/attachment.htm>