view .hgignore @ 40724:15a643304728 stable

wireprotov2peer: wait for initial object before resolving future As part of rolling out wireprotov2 with redirect support, I encountered an edge case with regards to future resolution. Essentially, the initial response frame from the server did not fully decode the initial CBOR object. The frame wasn't marked as EOS. In the previous code, we resolved the future for the request to response.objects(), which mapped to the commandresponse instance which would eventually produce a redirect. Upon receiving subsequent data, the initial CBOR object containing the redirect would be decoded and we'd process the redirect. However, the future would already have been resolved with the initial commandresponse.objects() and the client iterating over the objects wouldn't receive any objects from the redirect because the redirect was populating a different commandresponse instance! This commit changes the logic so we don't resolve futures until the initial CBOR response object is fully decoded or until EOS occurs. In cases where there is an empty or partial frame associated with a redirect, the future will now resolve with the commandresponse containing the proper series of decoded objects.
author Gregory Szorc <gregory.szorc@gmail.com>
date Wed, 28 Nov 2018 12:52:23 -0800
parents aab43d5861bb
children 8492c6293c31
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