[zeromq-dev] Binding to TCP port 0

[AJ Lewis]

On Thu, Jan 26, 2012 at 07:53:06AM -0600, Pieter Hintjens wrote:
> On Thu, Jan 26, 2012 at 2:17 AM, Ian Barber <ian.barber at gmail.com> wrote:
> 
> > Is it possible that this API should simply be on a different calls, a
> > zmq_bind_assign or similar, to avoid this clash? This could then work with
> > all transports:
> >
> > tcp/pgm: bind to random port
> > ipc: bind to random free name in system tmp
> > inproc: bind to random free name
> 
> That would work, but so would a less surprising zmq_bind plus a
> getsockopt with return value depending on transport type.

Forgive me if I'm being dense, but couldn't the N case work if you made
sure to do the getsockopt() call after each zmq_bind()?

zmq_bind(foo, "tcp://XXXX:0")
zmq_getsockopt(foo, GET_LAST_BOUND_PORT, &port1, sizeof(port1))
zmq_bind(foo, "tcp://YYYY:0")
zmq_getsockopt(foo, GET_LAST_BOUND_PORT, &port2, sizeof(port2))

-- 
AJ Lewis
Software Engineer
Quantum Corporation

Work:    651 688-4346

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