bpo-35380: Enable TCP_NODELAY for proactor event loop (#10867)

1 files changed, 1 insertions, 12 deletions

diff --git a/Lib/asyncio/selector_events.py b/Lib/asyncio/selector_events.py
index ad09300..112c4b1 100644
--- a/Lib/asyncio/selector_events.py
+++ b/Lib/asyncio/selector_events.py
@@ -39,17 +39,6 @@ def _test_selector_event(selector, fd, event):
         return bool(key.events & event)
 
 
-if hasattr(socket, 'TCP_NODELAY'):
-    def _set_nodelay(sock):
-        if (sock.family in {socket.AF_INET, socket.AF_INET6} and
-                sock.type == socket.SOCK_STREAM and
-                sock.proto == socket.IPPROTO_TCP):
-            sock.setsockopt(socket.IPPROTO_TCP, socket.TCP_NODELAY, 1)
-else:
-    def _set_nodelay(sock):
-        pass
-
-
 class BaseSelectorEventLoop(base_events.BaseEventLoop):
     """Selector event loop.
 
@@ -742,7 +731,7 @@ class _SelectorSocketTransport(_SelectorTransport):
         # Disable the Nagle algorithm -- small writes will be
         # sent without waiting for the TCP ACK.  This generally
         # decreases the latency (in some cases significantly.)
-        _set_nodelay(self._sock)
+        base_events._set_nodelay(self._sock)
 
         self._loop.call_soon(self._protocol.connection_made, self)
         # only start reading when connection_made() has been called