Add a new attachTo method to HttpServer, for using an existing ServerSocket.

runtime/bin/http.dart

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 /**
  * HTTP status codes.
  */
 interface HttpStatus {
   static final int CONTINUE = 100;
   static final int SWITCHING_PROTOCOLS = 101;
@@ skipping 51 matching lines @@
    * Start listening for HTTP requests on the specified [host] and
    * [port]. For each HTTP request the handler set through [onRequest]
    * will be invoked. If a [port] of 0 is specified the server will
    * choose an ephemeral port. The optional argument [backlog] can be
    * used to specify the listen backlog for the underlying OS listen
    * setup.
    */
   void listen(String host, int port, [int backlog]);
 
   /**
+   * Attach the HTTP server to an existing ServerSocket. If the server is
+   * closed, the HttpServer will just detach itself, and not close
+   * [serverSocket].
+   */
+  void attachTo(ServerSocket serverSocket);

[Søren Gjesse, 2012/04/02 07:32:41]

How about calling this listenOn?

[Anders Johnsen, 2012/04/02 07:36:52]

Agreed, updated.

+
+  /**
    * Stop server listening.
    */
   void close();
 
   /**
    * Returns the port that the server is listening on. This can be
    * used to get the actual port used when a value of 0 for [port] is
    * specified in the [listen] call.
    */
   int get port();
@@ skipping 313 matching lines @@
    */
   InputStream get inputStream();
 }
 
 
 class HttpException implements Exception {
   const HttpException([String this.message = ""]);
   String toString() => "HttpException: $message";
   final String message;
 }