Initial checkin of gRPC to third_party/

third_party/grpc/src/python/grpcio/grpc/framework/foundation/activated.py

Index: third_party/grpc/src/python/grpcio/grpc/framework/foundation/activated.py
diff --git a/third_party/WebKit/LayoutTests/http/tests/websocket/close_wsh.py b/third_party/grpc/src/python/grpcio/grpc/framework/foundation/activated.py
similarity index 62%
copy from third_party/WebKit/LayoutTests/http/tests/websocket/close_wsh.py
copy to third_party/grpc/src/python/grpcio/grpc/framework/foundation/activated.py
index 1b02d66267e294ce83977dac64f075981705647c..426a71c7059eb7c866865c3d898e69eef504c6b6 100644
--- a/third_party/WebKit/LayoutTests/http/tests/websocket/close_wsh.py
+++ b/third_party/grpc/src/python/grpcio/grpc/framework/foundation/activated.py
@@ -1,4 +1,4 @@
-# Copyright 2011, Google Inc.
+# Copyright 2015, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -27,27 +27,39 @@
 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
+"""Interfaces related to streams of values or objects."""
 
-import logging
-_GOODBYE_MESSAGE = u'Goodbye'
+import abc
 
 
-def web_socket_do_extra_handshake(request):
-    pass  # Always accept.
+class Activated(object):
+  """Interface for objects that may be started and stopped.
 
+  Values implementing this type must also implement the context manager
+  protocol.
+  """
+  __metaclass__ = abc.ABCMeta
 
-def web_socket_transfer_data(request):
-    while True:
-        line = request.ws_stream.receive_message()
-        if line is None:
-            return
-        if isinstance(line, unicode):
-            request.ws_stream.send_message(line, binary=False)
-            if line == _GOODBYE_MESSAGE:
-                return
-        else:
-            request.ws_stream.send_message(line, binary=True)
+  @abc.abstractmethod
+  def __enter__(self):
+    """See the context manager protocol for specification."""
+    raise NotImplementedError()
 
+  @abc.abstractmethod
+  def __exit__(self, exc_type, exc_val, exc_tb):
+    """See the context manager protocol for specification."""
+    raise NotImplementedError()
 
-def web_socket_passive_closing_handshake(request):
-    return request.ws_close_code, request.ws_close_reason
+  @abc.abstractmethod
+  def start(self):
+    """Activates this object.
+
+    Returns:
+      A value equal to the value returned by this object's __enter__ method.
+    """
+    raise NotImplementedError()
+
+  @abc.abstractmethod
+  def stop(self):
+    """Deactivates this object."""
+    raise NotImplementedError()