Current File : //usr/lib64/python2.7/site-packages/tornado/tcpclient.pyc
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_Connectorc B� s_ e Z d Z d � Z e d � � Z e d � Z d � Z d � Z d � Z
d � Z d � Z RS( s� A stateless implementation of the "Happy Eyeballs" algorithm.
"Happy Eyeballs" is documented in RFC6555 as the recommended practice
for when both IPv4 and IPv6 addresses are available.
In this implementation, we partition the addresses by family, and
make the first connection attempt to whichever address was
returned first by ``getaddrinfo``. If that connection fails or
times out, we begin a connection in parallel to the first address
of the other family. If there are additional failures we retry
with other addresses, keeping one connection attempt per family
in flight at a time.
http://tools.ietf.org/html/rfc6555
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R ( ( s7 /usr/lib64/python2.7/site-packages/tornado/tcpclient.pyt __init__1 s c C� sp g } g } | d d } xI | D]A \ } } | | k rO | j | | f � q! | j | | f � q! W| | f S( s� Partition the ``addrinfo`` list by address family.
Returns two lists. The first list contains the first entry from
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d � Z RS( sw A non-blocking TCP connection factory.
.. versionchanged:: 4.1
The ``io_loop`` argument is deprecated.
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d | d | �V} n t j | � � d S( s� Connect to the given host and port.
Asynchronously returns an `.IOStream` (or `.SSLIOStream` if
``ssl_options`` is not None).
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