quic: fix get_reader bug that lost data from open streams on FIN#63946
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pimterry wants to merge 1 commit into
Open
quic: fix get_reader bug that lost data from open streams on FIN#63946pimterry wants to merge 1 commit into
pimterry wants to merge 1 commit into
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Signed-off-by: Tim Perry <pimterry@gmail.com>
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Ethan-Arrowood
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Jun 17, 2026
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Currently if you receive a stream, but you don't start reading the body immediately, you can lose the stream body entirely even while the stream is still open.
This happens because
get_readerreturned an empty reader ifis_readable()was false, which happens when the stream's data is finished, even though it may be happily received and ready to read. This happens even if the writable side of the stream is open and the stream is otherwise active as normal.This is reasonably common I think. For an HTTP/3 server where you receive a request and you do anything async before you start reading the body, if the client finishes the body before you start reading it (a small body delivered within the flow control window) you'd just get empty data. Nice easy standalone fix & test.