http2: use 'close' event instead of 'streamClosed'

PR-URL: #17328
Fixes: #15303
Reviewed-By: Anatoli Papirovski <apapirovski@mac.com>
Reviewed-By: Sebastiaan Deckers <sebdeckers83@gmail.com>

Author: jasnell

doc/api/http2.md

@@ -633,7 +633,7 @@ All [`Http2Stream`][] instances are destroyed either when:
 When an `Http2Stream` instance is destroyed, an attempt will be made to send an
 `RST_STREAM` frame will be sent to the connected peer.
 
-Once the `Http2Stream` instance is destroyed, the `'streamClosed'` event will
+When the `Http2Stream` instance is destroyed, the `'close'` event will
 be emitted. Because `Http2Stream` is an instance of `stream.Duplex`, the
 `'end'` event will also be emitted if the stream data is currently flowing.
 The `'error'` event may also be emitted if `http2stream.destroy()` was called
@@ -655,6 +655,18 @@ abnormally aborted in mid-communication.
 *Note*: The `'aborted'` event will only be emitted if the `Http2Stream`
 writable side has not been ended.
 
+#### Event: 'close'
+<!-- YAML
+added: v8.4.0
+-->
+
+The `'close'` event is emitted when the `Http2Stream` is destroyed. Once
+this event is emitted, the `Http2Stream` instance is no longer usable.
+
+The listener callback is passed a single argument specifying the HTTP/2 error
+code specified when closing the stream. If the code is any value other than
+`NGHTTP2_NO_ERROR` (`0`), an `'error'` event will also be emitted.
+
 #### Event: 'error'
 <!-- YAML
 added: v8.4.0
@@ -674,18 +686,6 @@ argument identifying the frame type, and an integer argument identifying the
 error code. The `Http2Stream` instance will be destroyed immediately after the
 `'frameError'` event is emitted.
 
-#### Event: 'streamClosed'
-<!-- YAML
-added: v8.4.0
--->
-
-The `'streamClosed'` event is emitted when the `Http2Stream` is destroyed. Once
-this event is emitted, the `Http2Stream` instance is no longer usable.
-
-The listener callback is passed a single argument specifying the HTTP/2 error
-code specified when closing the stream. If the code is any value other than
-`NGHTTP2_NO_ERROR` (`0`), an `'error'` event will also be emitted.
-
 #### Event: 'timeout'
 <!-- YAML
 added: v8.4.0

lib/internal/http2/compat.js

@@ -250,7 +250,7 @@ class Http2ServerRequest extends Readable {
     stream.on('close', onStreamClosedRequest);
     stream.on('aborted', onStreamAbortedRequest);
     const onfinish = this[kFinish].bind(this);
-    stream.on('streamClosed', onfinish);
+    stream.on('close', onfinish);
     stream.on('finish', onfinish);
     this.on('pause', onRequestPause);
     this.on('resume', onRequestResume);
@@ -383,7 +383,7 @@ class Http2ServerResponse extends Stream {
     stream.on('close', onStreamClosedResponse);
     stream.on('aborted', onStreamAbortedResponse);
     const onfinish = this[kFinish].bind(this);
-    stream.on('streamClosed', onfinish);
+    stream.on('close', onfinish);
     stream.on('finish', onfinish);
   }
 

lib/internal/http2/core.js

@@ -226,10 +226,8 @@ function onStreamTrailers() {
   return headersList;
 }
 
-// Called when the stream is closed. The streamClosed event is emitted on the
-// Http2Stream instance. Note that this event is distinctly different than the
-// require('stream') interface 'close' event which deals with the state of the
-// Readable and Writable sides of the Duplex.
+// Called when the stream is closed. The close event is emitted on the
+// Http2Stream instance
 function onStreamClose(code) {
   const stream = this[kOwner];
   stream[kUpdateTimer]();
@@ -1485,7 +1483,7 @@ function continueStreamDestroy(err, callback) {
   abort(this);
   this.push(null);  // Close the readable side
   this.end();       // Close the writable side
-  process.nextTick(emit, this, 'streamClosed', code);
+  process.nextTick(emit, this, 'close', code);
 }
 
 function finishStreamDestroy() {

test/parallel/test-http2-client-http1-server.js

@@ -13,7 +13,7 @@ server.listen(0, common.mustCall(() => {
   const client = http2.connect(`http://localhost:${server.address().port}`);
 
   const req = client.request();
-  req.on('streamClosed', common.mustCall());
+  req.on('close', common.mustCall());
 
   client.on('error', common.expectsError({
     code: 'ERR_HTTP2_ERROR',

test/parallel/test-http2-client-rststream-before-connect.js

@@ -27,7 +27,7 @@ server.on('listening', common.mustCall(() => {
   // second call doesn't do anything
   assert.doesNotThrow(() => req.rstStream(8));
 
-  req.on('streamClosed', common.mustCall((code) => {
+  req.on('close', common.mustCall((code) => {
     assert.strictEqual(req.destroyed, true);
     assert.strictEqual(code, 0);
     server.close();

test/parallel/test-http2-client-stream-destroy-before-connect.js

@@ -41,7 +41,7 @@ server.on('listening', common.mustCall(() => {
     })(err);
   }));
 
-  req.on('streamClosed', common.mustCall((code) => {
+  req.on('close', common.mustCall((code) => {
     assert.strictEqual(req.rstCode, NGHTTP2_INTERNAL_ERROR);
     assert.strictEqual(code, NGHTTP2_INTERNAL_ERROR);
     server.close();

test/parallel/test-http2-client-unescaped-path.js

@@ -30,7 +30,7 @@ server.listen(0, common.mustCall(() => {
       type: Error,
       message: 'Stream closed with error code 1'
     }));
-    req.on('streamClosed', common.mustCall(maybeClose));
+    req.on('close', common.mustCall(maybeClose));
   }
 
   for (let i = 0; i <= count; i += 1)

test/parallel/test-http2-compat-serverresponse-end.js

@@ -183,10 +183,10 @@ const {
 
 
 {
-  // Should be able to call .end with cb from stream 'streamClosed'
+  // Should be able to call .end with cb from stream 'close'
   const server = createServer(mustCall((request, response) => {
     response.writeHead(HTTP_STATUS_OK, { foo: 'bar' });
-    response.stream.on('streamClosed', mustCall(() => {
+    response.stream.on('close', mustCall(() => {
       response.end(mustCall());
     }));
   }));

test/parallel/test-http2-compat-socket.js

@@ -63,8 +63,8 @@ server.on('request', common.mustCall(function(request, response) {
   assert.strictEqual(request.socket.connecting, false);
 
   // socket events are bound and emitted on Http2Stream
-  request.socket.on('streamClosed', common.mustCall());
-  request.socket.once('streamClosed', common.mustCall());
+  request.socket.on('close', common.mustCall());
+  request.socket.once('close', common.mustCall());
   request.socket.on('testEvent', common.mustCall());
   request.socket.emit('testEvent');
 }));

test/parallel/test-http2-multiheaders-raw.js

@@ -42,7 +42,7 @@ server.on('stream', common.mustCall((stream, headers, flags, rawHeaders) => {
 server.listen(0, common.mustCall(() => {
   const client = http2.connect(`http://localhost:${server.address().port}`);
   const req = client.request(src);
-  req.on('streamClosed', common.mustCall(() => {
+  req.on('close', common.mustCall(() => {
     server.close();
     client.destroy();
   }));