http: add missing stream-like properties to OutgoingMessage

PR-URL: https://github.com/nodejs/node/pull/29018
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>

1 files changed, 19 insertions, 1 deletions

diff --git a/lib/_http_outgoing.js b/lib/_http_outgoing.js
index e10f068f32..9477a9b7f7 100644
--- a/lib/_http_outgoing.js
+++ b/lib/_http_outgoing.js
@@ -112,7 +112,7 @@ Object.setPrototypeOf(OutgoingMessage.prototype, Stream.prototype);
 Object.setPrototypeOf(OutgoingMessage, Stream);
 
 Object.defineProperty(OutgoingMessage.prototype, 'writableFinished', {
-  get: function() {
+  get() {
     return (
       this.finished &&
       this.outputSize === 0 &&
@@ -121,6 +121,24 @@ Object.defineProperty(OutgoingMessage.prototype, 'writableFinished', {
   }
 });
 
+Object.defineProperty(OutgoingMessage.prototype, 'writableObjectMode', {
+  get() {
+    return false;
+  }
+});
+
+Object.defineProperty(OutgoingMessage.prototype, 'writableLength', {
+  get() {
+    return this.outputSize + (this.socket ? this.socket.writableLength : 0);
+  }
+});
+
+Object.defineProperty(OutgoingMessage.prototype, 'writableHighWaterMark', {
+  get() {
+    return this.socket ? this.socket.writableHighWaterMark : HIGH_WATER_MARK;
+  }
+});
+
 Object.defineProperty(OutgoingMessage.prototype, '_headers', {
   get: internalUtil.deprecate(function() {
     return this.getHeaders();