dart:io | Pass errors from multithreaded encryption back to Dart.

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 716 matching lines @@
     _scheduleFilter();
   }
 
   void _doneHandler() {
     if (_filterStatus.readEmpty) {
       _close();
     }
   }
 
   void _reportError(e) {
-    if (_connectPending) {
+    if (_status == CLOSED) {
+      return;
+    } else if (_connectPending) {
       // _connectPending is true after the underlying connection has been
       // made, but before the handshake has completed.
       if (e is! TlsException) {
         e = new HandshakeException("$e", null);
       }
       _handshakeComplete.completeError(e);
     } else {
       _controller.addError(e);
     }
     _close();
@@ skipping 192 matching lines @@
       _filterService = _SecureFilter._newServicePort();
     }
     List args = [_filterPointer, _status != CONNECTED];
     var bufs = _secureFilter.buffers;
     for (var i = 0; i < NUM_BUFFERS; ++i) {
       args.add(bufs[i].start);
       args.add(bufs[i].end);
     }
 
     return _filterService.call(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];
 
       _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
@@ skipping 249 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);
 }