Add close to input stream and cleanup socket and streams

runtime/bin/list_stream.dart

Index: runtime/bin/list_stream.dart
diff --git a/runtime/bin/list_stream.dart b/runtime/bin/list_stream.dart
index da5826ec8e956bbec2039d07d62e81b6fb8fc7ad..dfb370a37133405e03287866845f2cdb7be61f2b 100644
--- a/runtime/bin/list_stream.dart
+++ b/runtime/bin/list_stream.dart
@@ -26,8 +26,13 @@ class ListInputStream extends _BaseDataInputStream implements InputStream {
     return bytesToRead;
   }
 
+  void _close() {
+    _offset = _buffer.length;
+  }
+
   List<int> _buffer;
   int _offset = 0;
+  bool _closeCalled = false;

[Mads Ager (google), 2011/12/23 08:35:40]

Is this ever used?

[Søren Gjesse, 2012/01/02 11:51:17]

No, removed.

 }
 
 
@@ -38,6 +43,9 @@ class DynamicListInputStream
   int available() => _bufferList.length;
 
   void write(List<int> data) {
+    if (_streamMarkedClosed || _closeCalled) {

[Mads Ager (google), 2011/12/23 08:35:40]

I think you can get rid of _closeCalled here as well (and the declaration of it
below).

[Søren Gjesse, 2012/01/02 11:51:17]

Done.

+      throw new StreamException.streamClosed();
+    }
     _bufferList.add(data);
     _checkScheduleCallbacks();
   }
@@ -57,7 +65,13 @@ class DynamicListInputStream
     return bytesToRead;
   }
 
+  void _close() {
+    _streamMarkedClosed = true;
+    _bufferList.clear();
+  }
+
   _BufferList _bufferList;
+  bool _closeCalled = false;
 }