tree bdcbf860ee516d33a645c4e00a89b65f9535704a
parent 3c4303998fd1b59f1f404ba166bde43fbfa24b7b
author Amaury Denoyelle <adenoyelle@haproxy.com> 1646044668 +0100
committer Amaury Denoyelle <adenoyelle@haproxy.com> 1646129247 +0100

MEDIUM: quic: rearchitecture Rx path for bidirectional STREAM frames

Reorganize the Rx path for STREAM frames on bidirectional streams. A new
function qcc_recv is implemented on the MUX. It will handle the STREAM
frames copy and offset calculation from transport to MUX.

Another function named qcc_decode_qcs from the MUX can be called by
transport each time new STREAM data has been copied.

The architecture is now cleaner with the MUX layer in charge of parsing
the STREAM frames offsets. This is required to be able to implement the
flow-control on the MUX layer.

Note that as a convenience, a STREAM frame is not partially copied to
the MUX buffer. This simplify the implementation for the moment but it
may change in the future to optimize the STREAM frames handling.

For the moment, only bidirectional streams benefit from this change. In
the future, it may be extended to unidirectional streams to unify the
STREAM frames processing.