Hello I' trying to use zmq_socket_monitor to get notice when my TCP/IP socket is disconnected. I do not send much but the user would like to know when something goes offline asap. All works fine up to the point where I stop the socket and (maybe a while later) start a new one. Here's what I got:
Main thread: m_pZContext = zmq_ctx_new(); Start comm. threads Stop comm. Threads zmq_ctx_term (m_pZContext); //_always crashes! Comm threads (n): void* pZReceiveSocket = zmq_socket(m_pZContext, ZMQ_REP); int result = zmq_bind(pZReceiveSocket, connection); int rc = zmq_socket_monitor(pZReceiveSocket, monitor.c_str(), ZMQ_EVENT_ALL); Start monitor threads Do comm until stop signal Stop monitor threads int rc = zmq_unbind(pZReceiveSocket, connection); ASSERT(rc == 0); rc = zmq_close(pZReceiveSocket); ASSERT(rc == 0); Monitor threads (one per comm. Thread): rc = zmq_connect (m_MonitorSocket, monitor.c_str()); handle events until stop signal rc = zmq_disconnect (m_MonitorSocket, monitor.c_str()); ASSERT (rc == 0); int rc = zmq_close (m_MonitorSocket); ASSERT (rc == 0); All threads end gracefully, all sockets have a low LINGER, but zmq_ctx_term always crashes deep in libzmq. If I don't use zmq_ctx_term the next time I try to open I get address in use. Only way out: don't use zmq_socket_monitor and all works fine. That's too bad, tough as I'd really like to know asap when the connection is gone. Any Ideas? Need more Input? Best Regards Björn Dr. Björn Kuhlbrodt Senior Software Developer GP Inspect GmbH Tel: +49 89 750778 4729 Fax: +49 89 750778 4710 E-Mail: [email protected]<mailto:[email protected]> GP Inspect GmbH | Hainbuchenring 9-11 | 82061 Neuried | Deutschland Geschäftsführer | Christian Probst, Dr. Eric Rüland, Enis Ersü, Martin Heinrich Amtsgericht München | HRB 173887 A company of ISRA VISION Group ------------------------------------------------------------------------------------------------------ This e-mail may contain material that is confidential, privileged and for the sole use of the intended recipient. Any review, reliance or distribution by others or forwarding without express permission is strictly prohibited. If you are not the intended recipient, please contact the sender and delete all copies. GP Inspect GmbH, ISRA VISION AG, its branches and subsidiaries herewith exclude any liability for third-party information recognizably contained in this email or its attachments. Third-party information does not necessarily reflect the opinion of GP Inspect GmbH or, ISRA VISION AG. ------------------------------------------------------------------------------------------------------ WWW.GPSOLAR.COM<http://www.gpsolar.com/> WWW.ISRAVISION.COM<http://www.isravision.com/> ------------------------------------------------------------------------------------------------------
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