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diff src/event/quic/ngx_event_quic_migration.c @ 8822:ad046179eb91 quic

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QUIC: handle EAGAIN properly on UDP sockets. Previously, the error was ignored leading to unnecessary retransmits. Now, unsent frames are returned into output queue, state is reset, and timer is started for the next send attempt.
author Vladimir Homutov <vl@nginx.com>
date Wed, 28 Jul 2021 17:23:18 +0300
parents 4715f3e669f1
children a951e0809044
line wrap: on
line diff
--- a/src/event/quic/ngx_event_quic_migration.c
+++ b/src/event/quic/ngx_event_quic_migration.c
@@ -55,7 +55,7 @@ ngx_quic_handle_path_challenge_frame(ngx
     pad = ngx_min(1200, max);
 
     sent = ngx_quic_frame_sendto(c, &frame, pad, path->sockaddr, path->socklen);
-    if (sent == -1) {
+    if (sent < 0) {
         return NGX_ERROR;
     }
 
@@ -606,7 +606,7 @@ ngx_quic_send_path_challenge(ngx_connect
     pad = ngx_min(1200, max);
 
     sent = ngx_quic_frame_sendto(c, &frame, pad, path->sockaddr, path->socklen);
-    if (sent == -1) {
+    if (sent < 0) {
         return NGX_ERROR;
     }
 
@@ -618,7 +618,7 @@ ngx_quic_send_path_challenge(ngx_connect
     pad = ngx_min(1200, max);
 
     sent = ngx_quic_frame_sendto(c, &frame, pad, path->sockaddr, path->socklen);
-    if (sent == -1) {
+    if (sent < 0) {
         return NGX_ERROR;
     }