BUG/MEDIUM: mux-h2: stop sending HTX once the mux is blocked

If we're blocking on mux full, mux busy or whatever, we must get out of
the loop. In legacy mode this problem doesn't exist as we can normally
return 0 but here it's not a sufficient condition to stop sending, so
we must inspect the blocking flags as well.

No backport is needed.

diff --git a/src/mux_h2.c b/src/mux_h2.c
index c56efc2f82549a768d728be48dbb249565561688..bfcfc267f4ecef1fa3acfd3aab881c93fbe29821 100644 (file)
--- a/src/mux_h2.c
+++ b/src/mux_h2.c
@@ -4602,7 +4602,7 @@ static size_t h2_snd_buf(struct conn_stream *cs, struct buffer *buf, size_t coun
        }
 
        if (htx) {
-               while (count && !htx_is_empty(htx)) {
+               while (!(h2s->flags & H2_SF_BLK_ANY) && count && !htx_is_empty(htx)) {
                        idx   = htx_get_head(htx);
                        blk   = htx_get_blk(htx, idx);
                        btype = htx_get_blk_type(blk);