From 1cc2be9616bd9117778d3576dcf3112eb93da4e3 Mon Sep 17 00:00:00 2001 From: Roman Arutyunyan Date: Thu, 3 Feb 2022 21:29:05 +0300 Subject: [PATCH] QUIC: improved size calculation in ngx_quic_write_chain(). Previously, size was calculated based on the number of input bytes processed by the function. Now only the copied bytes are considered. This prevents overlapping buffers from contributing twice to the overall written size. --- src/event/quic/ngx_event_quic_frames.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/src/event/quic/ngx_event_quic_frames.c b/src/event/quic/ngx_event_quic_frames.c index 951b6e8a2..4fa6c56c5 100644 --- a/src/event/quic/ngx_event_quic_frames.c +++ b/src/event/quic/ngx_event_quic_frames.c @@ -554,16 +554,16 @@ ngx_quic_write_chain(ngx_connection_t *c, ngx_chain_t **chain, ngx_chain_t *in, if (b->sync) { ngx_memcpy(p, in->buf->pos, n); + + if (size) { + *size += n; + } } p += n; in->buf->pos += n; offset += n; limit -= n; - - if (size) { - *size += n; - } } if (b->sync && p == b->last) {