tree f29c40fdc8da92ced51ab216921abe86cd211ba4
parent b81370b28a13b4fd5ea5af31fae557c99efd7915
author Boris Zbarsky <bzbarsky@apple.com> 1716586459 -0400
committer GitHub <noreply@github.com> 1716586459 -0700
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Improve our various round-trip timeout computations. (#33587)

We had a few issues:

1) Our "round-trip timeout" only accounted for one side of the round-trip
needing to do MRP retransmits.  So if the sender retried a few times, the last
retry finally got through, then the response had to be retried a well, the
sender would time out the exchange before the response was received.  The fix
here is to add the MRP backoff times for both the initial message and the
response.

2) ReadClient could end up timing out a subscription before the server had
actually given up on receiving a StatusReport in response to its ReportData, in
situations where the server ended up doing MRP retries and the last MRP retry
took a few seconds to get through the network.  The fix here is to just estimate
how long the server will be waiting for the StatusReport and not time out the
subscription until then; at that point even if the server did in fact send its
report on time, it will have dropped the subscription on its end.