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authorRoman Arutyunyan <arut@nginx.com>2023-07-27 13:35:42 +0400
committerRoman Arutyunyan <arut@nginx.com>2023-07-27 13:35:42 +0400
commit968293d5e721b9c7ff4098ee76a3313b0b7fd2ac (patch)
tree002151aa0b542bda8a39f4e8f7077eb778760513 /src
parent6f5f17358ee6286e491f287eeda5cf2b3946bab6 (diff)
downloadnginx-968293d5e721b9c7ff4098ee76a3313b0b7fd2ac.tar.gz
nginx-968293d5e721b9c7ff4098ee76a3313b0b7fd2ac.zip
QUIC: fixed congesion control in GSO mode.
In non-GSO mode, a datagram is sent if congestion window is not exceeded by the time of send. The window could be exceeded by a small amount after the send. In GSO mode, congestion window was checked in a similar way, but for all concatenated datagrams as a whole. This could result in exceeding congestion window by a lot. Now congestion window is checked for every datagram in GSO mode as well.
Diffstat (limited to 'src')
-rw-r--r--src/event/quic/ngx_event_quic_output.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/event/quic/ngx_event_quic_output.c b/src/event/quic/ngx_event_quic_output.c
index 88b7df6ab..37de44c74 100644
--- a/src/event/quic/ngx_event_quic_output.c
+++ b/src/event/quic/ngx_event_quic_output.c
@@ -358,7 +358,7 @@ ngx_quic_create_segments(ngx_connection_t *c)
len = ngx_min(segsize, (size_t) (end - p));
- if (len && cg->in_flight < cg->window) {
+ if (len && cg->in_flight + (p - dst) < cg->window) {
n = ngx_quic_output_packet(c, ctx, p, len, len);
if (n == NGX_ERROR) {