Merge services into a shared IOService in dart:io, and use a native port.

sdk/lib/io/secure_socket.dart

 // Copyright (c) 2013, 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.
 
 part of dart.io;
 
 /**
  * A high-level class for communicating securely over a TCP socket, using
  * TLS and SSL. The [SecureSocket] exposes both a [Stream] and an
  * [IOSink] interface, making it ideal for using together with
@@ skipping 429 matching lines @@
   bool _closedRead = false;  // The secure socket has fired an onClosed event.
   bool _closedWrite = false;  // The secure socket has been closed for writing.
   Completer _closeCompleter = new Completer();  // The network socket is gone.
   _FilterStatus _filterStatus = new _FilterStatus();
   bool _connectPending = true;
   bool _filterPending = false;
   bool _filterActive = false;
 
   _SecureFilter _secureFilter = new _SecureFilter();
   int _filterPointer;
-  SendPort _filterService;
 
   static Future<_RawSecureSocket> connect(
       host,
       int requestedPort,
       String certificateName,
       {bool is_server,
        RawSocket socket,
        StreamSubscription subscription,
        List<int> bufferedData,
        bool requestClientCertificate: false,
@@ skipping 520 matching lines @@
         _writeEventsEnabled &&
         _pauseCount == 0 &&
         _secureFilter != null &&
         _secureFilter.buffers[WRITE_PLAINTEXT].free > 0) {
       _writeEventsEnabled = false;
       _controller.add(RawSocketEvent.WRITE);
     }
   }
 
   Future<_FilterStatus> _pushAllFilterStages() {
-    if (_filterService == null) {
-      _filterService = _SecureFilter._newServicePort();
-    }
-    List args = [_filterPointer, _status != CONNECTED];
+    bool wasInHandshake = _status != CONNECTED;
+    List args = new List(2 + NUM_BUFFERS * 2);
+    args[0] = _filterPointer;
+    args[1] = wasInHandshake;
     var bufs = _secureFilter.buffers;
     for (var i = 0; i < NUM_BUFFERS; ++i) {
-      args.add(bufs[i].start);
-      args.add(bufs[i].end);
+      args[2 * i + 2] = bufs[i].start;
+      args[2 * i + 3] = bufs[i].end;
     }
 
-    return _filterService.call(args).then((response) {
+    return IOService.dispatch(SSL_PROCESS_FILTER, args).then((response) {
       if (response.length == 2) {
         _reportError(new TlsException('${response[1]} error ${response[0]}'));
       }
-      bool wasInHandshake = response[1];
-      int start(int index) => response[2 * index + 2];
-      int end(int index) => response[2 * index + 3];
+      int start(int index) => response[2 * index];
+      int end(int index) => response[2 * index + 1];
 
       _FilterStatus status = new _FilterStatus();
       // Compute writeEmpty as "write plaintext buffer and write encrypted
       // buffer were empty when we started and are empty now".
       status.writeEmpty = bufs[WRITE_PLAINTEXT].isEmpty &&
           start(WRITE_ENCRYPTED) == end(WRITE_ENCRYPTED);
       // If we were in handshake when this started, _writeEmpty may be false
       // because the handshake wrote data after we checked.
       if (wasInHandshake) status.writeEmpty = false;
 
@@ skipping 250 matching lines @@
 /**
  * An exception that happens in the handshake phase of establishing
  * a secure network connection, when looking up or verifying a
  * certificate.
  */
 class CertificateException extends TlsException {
   const CertificateException([String message = "",
                             OSError osError = null])
      : super._("CertificateException", message, osError);
 }