Client RequestChannels and folly/python/futures.h

Summary:
Use RequestChannel to construct Thrift Clients.

use folly/python/futures.h to marry up thrift client rpc futures to
asyncio futures. No gil exchanges

py3 clients are async context managers now.

Reviewed By: ambv, yfeldblum

Differential Revision: D4639677

fbshipit-source-id: 6b400747507446882d3cfcb1cf7e85c3daa07a2e

diff --git a/folly/python/__init__.pxd b/folly/python/__init__.pxd
index b5deda23cf7d9da6384189a50613e8acd6b79173..b45054c8b3d8968b394c89773655597ff2f45d87 100644 (file)
--- a/folly/python/__init__.pxd
+++ b/folly/python/__init__.pxd
@@ -6,7 +6,7 @@ cdef extern from "folly/ExceptionWrapper.h" namespace "folly":
 
 cdef extern from "folly/Try.h" namespace "folly" nogil:
     cdef cppclass cFollyTry "folly::Try"[T]:
 
 cdef extern from "folly/Try.h" namespace "folly" nogil:
     cdef cppclass cFollyTry "folly::Try"[T]:

-        T value() except+
+        T value()

         cbool hasException[T]()
         cbool hasException()
         cFollyExceptionWrapper exception()
         cbool hasException[T]()
         cbool hasException()
         cFollyExceptionWrapper exception()