Hello Paul, thanks for the diagram! I would like to locate the variables cntA / cntB in source to understand what is going on (and why). Could you please point me in the right direction?
Regards On Wed, May 2, 2012 at 12:27 PM, Paul Colomiets <p...@colomiets.name> wrote: > Hi Gerhard, > > On Wed, May 2, 2012 at 12:45 PM, Gerhard Lipp <gel...@googlemail.com> wrote: >> >> I really appreciate any help and ideas to solve this issue! I just did >> not get the idea behind this attempt. >> Could you explain it in more detail (something particular to observe)? >> > > Ok. Behind the scenes ZMQ_FD, is basically a counter, which wakes up > poll when is non-zero. The counter is reset on each getsockopt ZMQ_EVENTS, > zmq_send and zmq_recv. > > The following diagram shows race condition with two sockets A and B, > in a scenario similar to yours: > > https://docs.google.com/drawings/d/1F97jpdbYMjjb6-2VzRtiL2LpHy638-AEOyrUX84HL78/edit > > Note: the last poll is entered with both counters set to zero, so it > will not wake up, despite the fact that there is pending message. > > -- > Paul > _______________________________________________ > zeromq-dev mailing list > zeromq-dev@lists.zeromq.org > http://lists.zeromq.org/mailman/listinfo/zeromq-dev _______________________________________________ zeromq-dev mailing list zeromq-dev@lists.zeromq.org http://lists.zeromq.org/mailman/listinfo/zeromq-dev
