nghttpx: Rename backend_session_cache_per_worker as downstream_session_cache_per_worker

src/shrpx.cc

@@ -1071,7 +1071,7 @@ void fill_default_config() {
   }
 
   tlsconf.session_timeout = std::chrono::hours(12);
-  tlsconf.backend_session_cache_per_worker = 10000;
+  tlsconf.downstream_session_cache_per_worker = 10000;
 
   auto &httpconf = mod_config()->http;
   httpconf.server_name = "nghttpx nghttp2/" NGHTTP2_VERSION;
@@ -1591,8 +1591,8 @@ SSL/TLS:
   --backend-tls-session-cache-per-worker=<N>
               Set  the maximum  number  of backend  TLS session  cache
               stored per worker.
-              Default: )" << get_config()->tls.backend_session_cache_per_worker
-      << R"(
+              Default: )"
+      << get_config()->tls.downstream_session_cache_per_worker << R"(
 
 HTTP/2 and SPDY:
   -c, --http2-max-concurrent-streams=<N>

src/shrpx_config.cc

@@ -2227,8 +2227,8 @@ int parse_config(const char *opt, const char *optarg,
 
     return 0;
   case SHRPX_OPTID_BACKEND_TLS_SESSION_CACHE_PER_WORKER:
-    return parse_uint(&mod_config()->tls.backend_session_cache_per_worker, opt,
-                      optarg);
+    return parse_uint(&mod_config()->tls.downstream_session_cache_per_worker,
+                      opt, optarg);
   case SHRPX_OPTID_CONF:
     LOG(WARN) << "conf: ignored";
 

src/shrpx_config.h

@@ -393,7 +393,7 @@ struct TLSConfig {
   std::vector<std::string> npn_list;
   // list of supported SSL/TLS protocol strings.
   std::vector<std::string> tls_proto_list;
-  size_t backend_session_cache_per_worker;
+  size_t downstream_session_cache_per_worker;
   // Bit mask to disable SSL/TLS protocol versions.  This will be
   // passed to SSL_CTX_set_options().
   long int tls_proto_mask;

src/shrpx_worker.cc

@@ -311,7 +311,7 @@ void Worker::cache_downstream_tls_session(const DownstreamAddr *addr,
                                           SSL_SESSION *session) {
   auto &tlsconf = get_config()->tls;
 
-  auto max = tlsconf.backend_session_cache_per_worker;
+  auto max = tlsconf.downstream_session_cache_per_worker;
   if (max == 0) {
     return;
   }