MEDIUM: h1: Realign the ibuf before calling rcv_buf if needed.
If the ibuf only contains a small amount of data, realign it
before calling rcv_buf(), as it's probably going to be cheaper
to do so than to do 2 calls to recv().
diff --git a/src/mux_h1.c b/src/mux_h1.c
index b0d5567..1c980dc 100644
--- a/src/mux_h1.c
+++ b/src/mux_h1.c
@@ -1484,6 +1484,13 @@
goto end;
}
+ /*
+ * If we only have a small amount of data, realign it,
+ * it's probably cheaper than doing 2 recv() calls.
+ */
+ if (b_data(&h1c->ibuf) > 0 && b_data(&h1c->ibuf) < 128)
+ b_slow_realign(&h1c->ibuf, trash.area, 0);
+
max = b_room(&h1c->ibuf);
if (max) {
h1c->flags &= ~H1C_F_IN_FULL;