Merge pull request #47 from sgalaburda/fix-create-connection

Fixed create_connection() to match the emulated one.

coro/emulation/socket.py

@@ -262,7 +262,7 @@ SocketType = socket
 
 _GLOBAL_DEFAULT_TIMEOUT = object()
 
-def create_connection(address, timeout=_GLOBAL_DEFAULT_TIMEOUT):
+def create_connection(address, timeout=_GLOBAL_DEFAULT_TIMEOUT, source_address=None):
     # This is copied directly from Python's implementation.
     msg = "getaddrinfo returns an empty list"
     host, port = address
@@ -273,6 +273,8 @@ def create_connection(address, timeout=_GLOBAL_DEFAULT_TIMEOUT):
             sock = socket(af, socktype, proto)
             if timeout is not _GLOBAL_DEFAULT_TIMEOUT:
                 sock.settimeout(timeout)
+            if source_address:
+                sock.bind(source_address)
             sock.connect(sa)
             return sock