tree d3e728db105cc93e0807f9c71c5654fbd856b95b
parent 573b56b774d61cedaf3a6323a5dfb7993b810a94
author Frédéric Lécaille <flecaille@haproxy.com> 1650899827 +0200
committer Amaury Denoyelle <adenoyelle@haproxy.com> 1651155760 +0200

BUG/MINOR: quic: Avoid sending useless PADDING frame

This may happen in rare cases with extreme packet loss (30% for both TX and RX)
which leads the congestion window to decrease down to its minimal value (two
datagrams). Under such circumtances, no ack-eliciting frame can be added to
a packet by qc_build_frms(). In this case we must cancel the packet building
process if there is no ACK or probe (PING frame) to send.