changeset 5520:a336cbc3dd44

SPDY: send output queue after processing of read event. During the processing of input some control frames can be added to the queue. And if there were no writing streams at the moment, these control frames might be left unsent for a long time (or even forever). This long delay is especially critical for PING replies since a client can consider connection as broken and then resend exactly the same request over a new connection, which is not safe in case of non-idempotent HTTP methods.
author Valentin Bartenev <vbart@nginx.com>
date Wed, 15 Jan 2014 17:16:38 +0400
parents 22c249dac7c1
children 320abeb364e6
files src/http/ngx_http_spdy.c
diffstat 1 files changed, 5 insertions(+), 0 deletions(-) [+]
line wrap: on
line diff
--- a/src/http/ngx_http_spdy.c
+++ b/src/http/ngx_http_spdy.c
@@ -378,6 +378,11 @@ ngx_http_spdy_read_handler(ngx_event_t *
         return;
     }
 
+    if (sc->last_out && ngx_http_spdy_send_output_queue(sc) == NGX_ERROR) {
+        ngx_http_spdy_finalize_connection(sc, NGX_HTTP_CLIENT_CLOSED_REQUEST);
+        return;
+    }
+
     sc->blocked = 0;
 
     if (sc->processing) {