Initial checkin of gRPC to third_party/

third_party/grpc/src/python/grpcio/grpc/framework/common/cardinality.py

Index: third_party/grpc/src/python/grpcio/grpc/framework/common/cardinality.py
diff --git a/third_party/WebKit/LayoutTests/http/tests/websocket/workers/resources/echo_wsh.py b/third_party/grpc/src/python/grpcio/grpc/framework/common/cardinality.py
similarity index 77%
copy from third_party/WebKit/LayoutTests/http/tests/websocket/workers/resources/echo_wsh.py
copy to third_party/grpc/src/python/grpcio/grpc/framework/common/cardinality.py
index 429f58186e3fce43dc21e81e0f9d7e20c7e0bf70..610425e8032e1b5eb1ed38575285e76d7a13b951 100644
--- a/third_party/WebKit/LayoutTests/http/tests/websocket/workers/resources/echo_wsh.py
+++ b/third_party/grpc/src/python/grpcio/grpc/framework/common/cardinality.py
@@ -1,4 +1,4 @@
-# Copyright 2010, Google Inc.
+# Copyright 2015, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -27,20 +27,16 @@
 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
+"""Defines an enum for classifying RPC methods by streaming semantics."""
 
-from mod_pywebsocket import msgutil
+import enum
 
 
-_GOODBYE_MESSAGE = 'Goodbye'
+@enum.unique
+class Cardinality(enum.Enum):
+  """Describes the streaming semantics of an RPC method."""
 
-
-def web_socket_do_extra_handshake(request):
-    pass  # Always accept.
-
-
-def web_socket_transfer_data(request):
-    while True:
-        line = msgutil.receive_message(request)
-        msgutil.send_message(request, line)
-        if line == _GOODBYE_MESSAGE:
-            return
+  UNARY_UNARY = 'request-unary/response-unary'
+  UNARY_STREAM = 'request-unary/response-streaming'
+  STREAM_UNARY = 'request-streaming/response-unary'
+  STREAM_STREAM = 'request-streaming/response-streaming'