Hi Andrew, > My proposal is to check for EBADF somewhere in zmq::mailbox_t::recv and > print out a nice message like "Internal socketpair closed, maybe you > tried closing a ZMQ FD? Please don't do that"
Yes. Can be done. The nasty part is that a closed FD can be immediately reused by the OS in which case the mailbox would subsequently read/write from a wrong socket :| Another ugly problem is that the aside of closing the fd, user application can read or write to the fd which is undetectable and would mess with 0mq's internal logic badly. In short, it looks like the only real solution to the problem is placing a big warning to the documentation saying "NEVER USE THIS FILE DESCRIPTOR FOR ANYTHING OTHER THAN POLLING FOR INCOMING DATA". Thoughts? Martin _______________________________________________ zeromq-dev mailing list [email protected] http://lists.zeromq.org/mailman/listinfo/zeromq-dev
