[zeromq-dev] External Event Loop

Praveen Baratam praveen.baratam+zmq at gmail.com
Wed Dec 15 21:43:39 CET 2010

Libev is a strictly Level-Triggered event loop wrapper. The author points
out that its is required for portability.

So the problem you mentioned does not arise as we are using Level-Triggered
event reactor.


On Thu, Dec 16, 2010 at 12:08 AM, Martin Sustrik <sustrik at 250bpm.com> wrote:

> Hi Praveen,
> I think the problem may be in the fact that the ZMQ_FD is edge-triggered,
> i.e. you get an event if you tried to read a message unsuccessfully (EAGAIN)
> and the message arrives. When second message arrives you get no event
> (unless you've tried to read it and got EAGAIN) in the meantime. Etc.
> Martin
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