feat: disposable Deno resources (#20845)

This commit implements Symbol.dispose and Symbol.asyncDispose for
the relevant resources.

Closes #20839

---------

Signed-off-by: Bartek Iwańczuk <biwanczuk@gmail.com>
Co-authored-by: Bartek Iwańczuk <biwanczuk@gmail.com>

1 files changed, 15 insertions, 7 deletions

diff --git a/ext/http/00_serve.js b/ext/http/00_serve.js
index 17a67814b..b99f28c0f 100644
--- a/ext/http/00_serve.js
+++ b/ext/http/00_serve.js
@@ -36,6 +36,7 @@ import {
 } from "ext:deno_web/06_streams.js";
 import { listen, listenOptionApiName, TcpConn } from "ext:deno_net/01_net.js";
 import { listenTls } from "ext:deno_net/02_tls.js";
+import { SymbolAsyncDispose } from "ext:deno_web/00_infra.js";
 const {
   ArrayPrototypePush,
   ObjectHasOwn,
@@ -343,6 +344,7 @@ class CallbackContext {
   fallbackHost;
   serverRid;
   closed;
+  /** @type {Promise<void> | undefined} */
   closing;
   listener;
 
@@ -671,22 +673,25 @@ function serveHttpOn(context, callback) {
       PromisePrototypeCatch(callback(req), promiseErrorHandler);
     }
 
-    if (!context.closed && !context.closing) {
-      context.closed = true;
-      await op_http_close(rid, false);
+    if (!context.closing && !context.closed) {
+      context.closing = op_http_close(rid, false);
       context.close();
     }
+
+    await context.closing;
+    context.close();
+    context.closed = true;
   })();
 
   return {
     finished,
     async shutdown() {
-      if (!context.closed && !context.closing) {
+      if (!context.closing && !context.closed) {
         // Shut this HTTP server down gracefully
-        context.closing = true;
-        await op_http_close(context.serverRid, true);
-        context.closed = true;
+        context.closing = op_http_close(context.serverRid, true);
       }
+      await context.closing;
+      context.closed = true;
     },
     ref() {
       ref = true;
@@ -700,6 +705,9 @@ function serveHttpOn(context, callback) {
         core.unrefOp(currentPromise[promiseIdSymbol]);
       }
     },
+    [SymbolAsyncDispose]() {
+      return this.shutdown();
+    },
   };
 }