Reaching the HWM caused breaking message atomicity when the
flow was reestablished - initial parts of multipart messages
may have been lost.
Signed-off-by: Martin Sustrik <sustrik@250bpm.com>
This patch addresses serveral issues:
1. It gathers message related functionality scattered over whole
codebase into a single class.
2. It makes zmq_msg_t an opaque datatype. Internals of the class
don't pollute zmq.h header file.
3. zmq_msg_t size decreases from 48 to 32 bytes. That saves ~33%
of memory in scenarios with large amount of small messages.
Signed-off-by: Martin Sustrik <sustrik@250bpm.com>
When new peer connects to a PUB socket while it is in the middle
of sending of multi-part messages, it gets just the remaining
part of the message, i.e. message atomicity is broken.
This patch drops the tail part of the message and starts sending
to the peer only when new message is started.
Signed-off-by: Martin Sustrik <sustrik@250bpm.com>
