http2: handful of http/2 src cleanups

* inline more stuff. remove a node_http2_core.cc
* clean up debug messages
* simplify options code, and cleanup

PR-URL: #14825
Reviewed-By: Anna Henningsen <[email protected]>

Author: jasnell

node.gyp

@@ -185,7 +185,6 @@
         'src/node_contextify.cc',
         'src/node_debug_options.cc',
         'src/node_file.cc',
-        'src/node_http2_core.cc',
         'src/node_http2.cc',
         'src/node_http_parser.cc',
         'src/node_main.cc',

src/node_http2.cc

@@ -74,35 +74,57 @@ struct http2_state {
   double stream_state_buffer[IDX_STREAM_STATE_COUNT];
 };
 
+Freelist<nghttp2_data_chunk_t, FREELIST_MAX>
+    data_chunk_free_list;
+
+Freelist<Nghttp2Stream, FREELIST_MAX> stream_free_list;
+
+Freelist<nghttp2_header_list, FREELIST_MAX> header_free_list;
+
+Freelist<nghttp2_data_chunks_t, FREELIST_MAX>
+    data_chunks_free_list;
+
+Nghttp2Session::Callbacks Nghttp2Session::callback_struct_saved[2] = {
+    Callbacks(false),
+    Callbacks(true)};
+
 Http2Options::Http2Options(Environment* env) {
   nghttp2_option_new(&options_);
 
   uint32_t* buffer = env->http2_state_buffer()->options_buffer;
   uint32_t flags = buffer[IDX_OPTIONS_FLAGS];
 
   if (flags & (1 << IDX_OPTIONS_MAX_DEFLATE_DYNAMIC_TABLE_SIZE)) {
-    SetMaxDeflateDynamicTableSize(
+    nghttp2_option_set_max_deflate_dynamic_table_size(
+        options_,
         buffer[IDX_OPTIONS_MAX_DEFLATE_DYNAMIC_TABLE_SIZE]);
   }
 
   if (flags & (1 << IDX_OPTIONS_MAX_RESERVED_REMOTE_STREAMS)) {
-    SetMaxReservedRemoteStreams(
+    nghttp2_option_set_max_reserved_remote_streams(
+        options_,
         buffer[IDX_OPTIONS_MAX_RESERVED_REMOTE_STREAMS]);
   }
 
   if (flags & (1 << IDX_OPTIONS_MAX_SEND_HEADER_BLOCK_LENGTH)) {
-    SetMaxSendHeaderBlockLength(
+    nghttp2_option_set_max_send_header_block_length(
+        options_,
         buffer[IDX_OPTIONS_MAX_SEND_HEADER_BLOCK_LENGTH]);
   }
 
-  SetPeerMaxConcurrentStreams(100);  // Recommended default
+  // Recommended default
+  nghttp2_option_set_peer_max_concurrent_streams(options_, 100);
   if (flags & (1 << IDX_OPTIONS_PEER_MAX_CONCURRENT_STREAMS)) {
-    SetPeerMaxConcurrentStreams(
+    nghttp2_option_set_peer_max_concurrent_streams(
+        options_,
         buffer[IDX_OPTIONS_PEER_MAX_CONCURRENT_STREAMS]);
   }
 
   if (flags & (1 << IDX_OPTIONS_PADDING_STRATEGY)) {
-    SetPaddingStrategy(buffer[IDX_OPTIONS_PADDING_STRATEGY]);
+    padding_strategy_type strategy =
+        static_cast<padding_strategy_type>(
+            buffer[IDX_OPTIONS_PADDING_STRATEGY]);
+    SetPaddingStrategy(strategy);
   }
 }
 

src/node_http2.h

@@ -273,31 +273,15 @@ class Http2Options {
     nghttp2_option_del(options_);
   }
 
-  nghttp2_option* operator*() {
+  nghttp2_option* operator*() const {
     return options_;
   }
 
-  void SetPaddingStrategy(uint32_t val) {
+  void SetPaddingStrategy(padding_strategy_type val) {
     CHECK_LE(val, PADDING_STRATEGY_CALLBACK);
     padding_strategy_ = static_cast<padding_strategy_type>(val);
   }
 
-  void SetMaxDeflateDynamicTableSize(size_t val) {
-    nghttp2_option_set_max_deflate_dynamic_table_size(options_, val);
-  }
-
-  void SetMaxReservedRemoteStreams(uint32_t val) {
-    nghttp2_option_set_max_reserved_remote_streams(options_, val);
-  }
-
-  void SetMaxSendHeaderBlockLength(size_t val) {
-    nghttp2_option_set_max_send_header_block_length(options_, val);
-  }
-
-  void SetPeerMaxConcurrentStreams(uint32_t val) {
-    nghttp2_option_set_peer_max_concurrent_streams(options_, val);
-  }
-
   padding_strategy_type GetPaddingStrategy() {
     return padding_strategy_;
   }