An interesting shutdown race in messaging
Volker.Lendecke at SerNet.DE
Tue Jun 13 11:14:50 UTC 2017
On Tue, Jun 13, 2017 at 05:14:01PM +1200, Andrew Bartlett via samba-technical wrote:
> So, I wonder if there is a way to, before we call exit(0) in the
> standard process model, have it try again to dispatch the messages to
> somewhere safely on the other side of a connected or datagram fd?
Would a blocking messaging_send flavor help you? We need to preserve
message sequencing, so it would have to flush all messages lining up
for the destination given in the messaging_send. To just "flush" the
queue, a MSG_PING could do it I guess.
Haven't looked yet at the implementation, but that's an API that I
could imagine to be useful.
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