BUG/MINOR: lua: set buffer if it is nnot avalaible.
Check if the buffer is avalaible because HAProxy doesn't allocate
the request buffer if its not required. Sometimes, the Lua need to
write some data to the server before that the client send his data.
diff --git a/src/hlua.c b/src/hlua.c
index 073c408..cc88bd1 100644
--- a/src/hlua.c
+++ b/src/hlua.c
@@ -2195,6 +2195,16 @@
return 1;
}
+ /* Check if the buffer is avalaible because HAProxy doesn't allocate
+ * the request buffer if its not required.
+ */
+ if (chn->chn->buf->size == 0) {
+ if (!session_alloc_recv_buffer(chn->s, &chn->chn->buf)) {
+ chn->chn->prod->flags |= SI_FL_WAIT_ROOM;
+ WILL_LJMP(hlua_yieldk(L, 0, 0, _hlua_channel_send, TICK_ETERNITY, 0));
+ }
+ }
+
max = channel_recv_limit(chn->chn) - buffer_len(chn->chn->buf);
if (max > len - l)
max = len - l;