On Thu, 2015-10-22 at 18:20 +0300, Michael Ivanov wrote: > Hallo, > > What kind of communication error recovery is available in proton > library (if at all)? > I am using proton messenger in passive mode and I noticed very > unpleasant behaviour: > wherever the connection to qpidd is broken (eg. when qpidd is > restarted), the client > progan does not seem to get any notification about that, it just > proceeds to run, but > does not get any messages from the queue anymore. Sasme behaviour is > observed when > proton messenger just listens for incoming messages directly: > wherever the receiver > program is restarted the sender is not notified and the messages are > just get lost. > Is there any way to get a notifications about connection state change > or should I use > a tracker for each message to test whether the message was delivered > successfully? > As far as I understand the trackers mechanism I can use them only to > poll for the > status of messages being sent? And if the messages are excluded from > pni_store between > polling then I might still loose the information about message > delivery result? > > Please help me to sort this out. > > Best regards,
Much of the focus on proton has moved away from messenger towards an event-driven approach using the reactor. That approach gives you full visibility of pretty much all protocol events including connection/link/session close, disconnect etc. You might want to take a look. The programming style is quite different from messenger but gives you much greater control. There are good examples and a tutorial in python and C++, I haven't looked at the C documentation recently. Cheers, Alan. --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
