Make HTTP server close sockets when closed in idle state

tests/standalone/io/http_shutdown_test.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.
 //
 
 #import("dart:isolate");
 #import("dart:io");
 
 void test1(int totalConnections) {
   // Server which just closes immediately.
@@ skipping 77 matching lines @@
       count++;
       if (count == totalConnections) {
         client.shutdown();
         server.close();
       }
     };
   }
 }
 
 
+void test4() {
+  var server = new HttpServer();
+  server.listen("127.0.0.1", 0);
+  server.defaultRequestHandler = (var request, var response) {
+    request.inputStream.onClosed = () {
+      new Timer.repeating(100, (timer) {
+        if (server.connectionsInfo().total == 0) {
+          server.close();
+          timer.cancel();
+        }
+      });
+      response.outputStream.close();
+    };
+  };
+
+  var client= new HttpClient();
+  var conn = client.get("127.0.0.1", server.port, "/");
+  conn.onResponse = (var response) {
+    response.inputStream.onClosed = () {
+      client.shutdown();
+    };
+  };
+}
+
+
+void test5(int totalConnections) {
+  var server = new HttpServer();
+  server.listen("127.0.0.1", 0, backlog: totalConnections);
+  server.defaultRequestHandler = (var request, var response) {
+    request.inputStream.onClosed = () {
+      response.outputStream.close();
+    };
+  };
+  server.onError = (e) => { };
+
+  // Create a number of client requests and keep then active. Then
+  // close the client and wait for the server to loose all active

[Mads Ager (google), 2012/11/19 10:56:57]

loose -> lose

+  // connections.
+  var client= new HttpClient();
+  for (int i = 0; i < totalConnections; i++) {
+    var conn = client.post("127.0.0.1", server.port, "/");
+    conn.onRequest = (req) { req.outputStream.write([0]); };
+  }
+  bool clientClosed = false;
+  new Timer.repeating(100, (timer) {
+    if (!clientClosed) {
+      if (server.connectionsInfo().total == totalConnections) {
+        clientClosed = true;
+        client.shutdown();
+      }
+    } else {
+      if (server.connectionsInfo().total == 0) {
+        server.close();
+        timer.cancel();
+      }
+    }
+  });
+}
+
+
 void main() {
   test1(1);
   test1(10);
   test2(1);
   test2(10);
   test3(1);
   test3(10);
+  test4();
+  test5(1);
+  test5(10);
 }