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changeset 8567:4983357258d7 quic

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QUIC: a bandaid for calculating ack_delay with non-monotonic time.
author Sergey Kandaurov <pluknet@nginx.com>
date Thu, 01 Oct 2020 12:10:37 +0100
parents 9588a2782c62
children 0875101c08f7
files src/event/ngx_event_quic.c
diffstat 1 files changed, 1 insertions(+), 0 deletions(-) [+]
line wrap: on
line diff
--- a/src/event/ngx_event_quic.c
+++ b/src/event/ngx_event_quic.c
@@ -2265,6 +2265,7 @@ ngx_quic_ack_delay(ngx_connection_t *c, 
         ngx_gettimeofday(&tv);
         ack_delay = (tv.tv_sec - received->tv_sec) * 1000000
                     + tv.tv_usec - received->tv_usec;
+        ack_delay = ngx_max(ack_delay, 0);
         ack_delay >>= c->quic->ctp.ack_delay_exponent;
     }