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BUG/MINOR: hq-interop: support full demux buf on large response

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When dealing with large responses, QUIC MUX demux buffer may be full. In
this case, QC_SF_DEM_FULL flag must be set to pause transcoding. This
patch implements it for HTTP/0.9 response transcoding, similarly to what
HTTP/3 already provides. This is a backend side fix.

This should be backported up to 3.3.
This commit is contained in:
Amaury Denoyelle 2026-06-22 14:35:04 +02:00
parent e79af3d846
commit 42bb097c9e
1 changed files with 10 additions and 1 deletions
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11
src/hq_interop.c
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@ -147,18 +147,27 @@ static ssize_t hq_interop_rcv_buf_res(struct qcs *qcs, struct buffer *b, int fin
BUG_ON(b_head(b) + to_copy > b_wrap(b)); /* TODO */
htx_space = htx_free_data_space(htx);
if (!htx_space) {
qcs->flags |= QC_SF_DEM_FULL;
goto out;
}
if (to_copy > htx_space) {
to_copy = htx_space;
fin = 0;
}
htx_sent = htx_add_data(htx, ist2(b_head(b), to_copy));
BUG_ON(htx_sent < to_copy); /* TODO */
if (htx_sent < to_copy) {
qcs->flags |= QC_SF_DEM_FULL;
goto out;
}
if (fin && to_copy == htx_sent)
htx->flags |= HTX_FL_EOM;
}
out:
htx_to_buf(htx, htx_buf);
return htx_sent;
}