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Normally, when a connection's filters have all connected, the multiplex status is determined. However, HTTP/2 Upgrade: requests will only do this when the first server response has been received. The current connection reuse mechanism does not accomodate that and when the time between connect and response is large enough, connection reuse may not happen as desired. See test case 2405 failures, such as in https://github.com/curl/curl/actions/runs/10629497461/job/29467166451 Add 'conn->bits.asks_multiplex' as indicator that a connection is still being evaluated for mulitplexing, so that new transfers may wait on this to be cleared.
bagder
approved these changes
Sep 2, 2024
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Normally, when a connection's filters have all connected, the multiplex status is determined. However, HTTP/2 Upgrade: requests will only do this when the first server response has been received.
The current connection reuse mechanism does not accomodate that and when the time between connect and response is large enough, connection reuse may not happen as desired.
See test case 2405 failures, such as in
https://github.com/curl/curl/actions/runs/10629497461/job/29467166451
Add 'conn->bits.asks_multiplex' as indicator that a connection is still being evaluated for mulitplexing, so that new transfers may wait on this to be cleared.