tree bc89c8c6bcb3e8ba95ca3942a18f91fefa87460e
parent d666d740d206b1fde607fd6ca6097fd7bf9c11bd
author Amaury Denoyelle <adenoyelle@haproxy.com> 1657875505 +0200
committer Amaury Denoyelle <adenoyelle@haproxy.com> 1657891233 +0200

MINOR: mux-quic/h3: prepare CONNECTION_CLOSE on release

When MUX is released, a CONNECTION_CLOSE frame should be emitted. This
will ensure that the client does not use anymore a half-dead connection.

App protocol layer is responsible to provide the error code via release
callback. For HTTP/3 NO_ERROR is used as specified in RFC 9114. If no
release callback is provided, generic QUIC NO_ERROR code is used. Note
that a graceful shutdown is used : quic_conn must emit CONNECTION_CLOSE
frame when possible. This will be provided in another patch.

This change should limit the risk of browsers stuck on webpage loading
if MUX has been released. On CONNECTION_CLOSE reception, the client will
reopen a new QUIC connection.