From 75d2c045f79aee4f772cb235860e6ef340177a05 Mon Sep 17 00:00:00 2001
From: Divy Srivastava <dj.srivastava23@gmail.com>
Date: Fri, 7 Jul 2023 09:09:25 +0530
Subject: [PATCH] perf(ext/websocket): optimize server websocket js (#19719)

Split from https://github.com/denoland/deno/pull/19686

- timestamp set to 0 for server websocket events.
- take fast call path with op_ws_send_binary.
---
 ext/web/02_event.js           |  2 +-
 ext/websocket/01_websocket.js | 11 ++++++-----
 ext/websocket/lib.rs          |  2 +-
 3 files changed, 8 insertions(+), 7 deletions(-)

diff --git a/ext/web/02_event.js b/ext/web/02_event.js
index 7ccae17874..859da21217 100644
--- a/ext/web/02_event.js
+++ b/ext/web/02_event.js
@@ -200,7 +200,7 @@ class Event {
         currentTarget: null,
         eventPhase: Event.NONE,
         target: null,
-        timeStamp: DateNow(),
+        timeStamp: 0,
       };
       // TODO(@littledivy): Not spec compliant but performance is hurt badly
       // for users of `_skipInternalInit`.
diff --git a/ext/websocket/01_websocket.js b/ext/websocket/01_websocket.js
index 50e110444b..6359791741 100644
--- a/ext/websocket/01_websocket.js
+++ b/ext/websocket/01_websocket.js
@@ -322,7 +322,12 @@ class WebSocket extends EventTarget {
       throw new DOMException("readyState not OPEN", "InvalidStateError");
     }
 
-    if (ObjectPrototypeIsPrototypeOf(BlobPrototype, data)) {
+    if (ArrayBufferIsView(data)) {
+      op_ws_send_binary(this[_rid], data);
+    } else if (ObjectPrototypeIsPrototypeOf(ArrayBufferPrototype, data)) {
+      // deno-lint-ignore prefer-primordials
+      op_ws_send_binary(this[_rid], new Uint8Array(data));
+    } else if (ObjectPrototypeIsPrototypeOf(BlobPrototype, data)) {
       PromisePrototypeThen(
         // deno-lint-ignore prefer-primordials
         data.slice().arrayBuffer(),
@@ -332,10 +337,6 @@ class WebSocket extends EventTarget {
             new DataView(ab),
           ),
       );
-    } else if (ArrayBufferIsView(data)) {
-      op_ws_send_binary(this[_rid], data);
-    } else if (ObjectPrototypeIsPrototypeOf(ArrayBufferPrototype, data)) {
-      op_ws_send_binary(this[_rid], data);
     } else {
       const string = String(data);
       op_ws_send_text(
diff --git a/ext/websocket/lib.rs b/ext/websocket/lib.rs
index a8d18b4ad6..5ac1f0197a 100644
--- a/ext/websocket/lib.rs
+++ b/ext/websocket/lib.rs
@@ -407,7 +407,7 @@ pub fn ws_create_server_stream(
 }
 
 #[op(fast)]
-pub fn op_ws_send_binary(state: &mut OpState, rid: ResourceId, data: JsBuffer) {
+pub fn op_ws_send_binary(state: &mut OpState, rid: ResourceId, data: &[u8]) {
   let resource = state.resource_table.get::<ServerWebSocket>(rid).unwrap();
   let data = data.to_vec();
   let len = data.len();