From 9275f06a57fe43cbe79fc98c126817e591a0cef3 Mon Sep 17 00:00:00 2001
From: Roman Arutyunyan <arut@nginx.com>
Date: Tue, 21 Apr 2020 17:52:32 +0300
Subject: [PATCH] Fixed QUIC buffer consumption in send_chain().

---
 src/event/ngx_event_quic.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/event/ngx_event_quic.c b/src/event/ngx_event_quic.c
index 9bc7aab09..1965ed907 100644
--- a/src/event/ngx_event_quic.c
+++ b/src/event/ngx_event_quic.c
@@ -2849,8 +2849,9 @@ ngx_quic_stream_send_chain(ngx_connection_t *c, ngx_chain_t *in,
             return in;
         }
 
+        b->pos += n;
+
         if (n != (ssize_t) len) {
-            b->pos += n;
             return in;
         }
     }