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BUG/MEDIUM: mux-h2/htx: Respect the channel's reserve

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When data are pushed in the channel's buffer, in h2_rcv_buf(), the mux-h2 must
respect the reserve if the flag CO_RFL_KEEP_RSV is set. In HTX, because the
stream-interface always sees the buffer as full, there is no other way to know
the reserve must be respected.

This patch must be backported to 1.9.
This commit is contained in:
Christopher Faulet 2019-01-21 11:49:37 +01:00
parent dcd8c5eed4
commit a413e958fd
1 changed files with 6 additions and 1 deletions
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7
src/mux_h2.c
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@ -5051,7 +5051,12 @@ static size_t h2_rcv_buf(struct conn_stream *cs, struct buffer *buf, size_t coun
}
buf_htx = htx_from_buf(buf);
count = htx_free_space(buf_htx);
count = htx_free_data_space(buf_htx);
if (flags & CO_RFL_KEEP_RSV) {
if (count <= global.tune.maxrewrite)
goto end;
count -= global.tune.maxrewrite;
}
htx_ret = htx_xfer_blks(buf_htx, h2s_htx, count, HTX_BLK_EOM);