mirror of https://github.com/python/cpython
Add a feature to disable the Nagle algorithm on sockets in TCPServer
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@ -223,6 +223,15 @@ The server classes support the following class variables:
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desired. If :meth:`handle_request` receives no incoming requests within the
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timeout period, the :meth:`handle_timeout` method is called.
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.. attribute:: TCPServer.disable_nagle_algorithm
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If set to True, it will set the TCP_NODELAY attribute of new requests
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connections. This can help alleviate problems with latency in
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request-response type applications. To avoid sending many small packets,
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this option should be used only when bufferning output, such as when
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setting :attr:`StreamRequestHandler.wbufsize` attribute to -1.
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.. versionadded:: 2.7
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There are various server methods that can be overridden by subclasses of base
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server classes like :class:`TCPServer`; these methods aren't useful to external
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@ -374,6 +374,7 @@ class TCPServer(BaseServer):
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- socket_type
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- request_queue_size (only for stream sockets)
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- allow_reuse_address
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- disable_nagle_algorithm
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Instance variables:
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@ -391,6 +392,8 @@ class TCPServer(BaseServer):
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allow_reuse_address = False
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disable_nagle_algorithm = False
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def __init__(self, server_address, RequestHandlerClass, bind_and_activate=True):
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"""Constructor. May be extended, do not override."""
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BaseServer.__init__(self, server_address, RequestHandlerClass)
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@ -441,7 +444,10 @@ class TCPServer(BaseServer):
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May be overridden.
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"""
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return self.socket.accept()
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request = self.socket.accept()
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if self.disable_nagle_algorithm:
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request[0].setsockopt(socket.IPPROTO_TCP, socket.TCP_NODELAY, True)
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return request
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def close_request(self, request):
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"""Called to clean up an individual request."""
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