[zeromq-dev] ZMQ occupies random TCP ports on Windows

Steven McCoy steven.mccoy at miru.hk
Wed Sep 28 17:28:26 CEST 2011

On 28 September 2011 11:26, Martin Sustrik <sustrik at 250bpm.com> wrote:

> On 09/28/2011 05:21 PM, Steven McCoy wrote:
>  Should I try re-writing everything to use Windows events /semaphores/
>> and WSA wait API?
> The problem is that I/O threads have to wait for sockets (TCP connections
> and alike) and signaler (internal commands) at the same time.
> Thus, if the signaler is implemented using an event, you would need a
> function to poll on both events and sockets.
> AFAIK select() doesn't support that kind of thing. Which brings us back to
> the IOCP discussion :|
You can promote sockets to handles but not the other way, which means it
might be possible to swap around underneath the 0mq API.

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