ikan Uploader :
Directory : /usr/lib/python3.6/site-packages/urllib3/util/__pycache__/
Upload File : |
| Current File : //usr/lib/python3.6/site-packages/urllib3/util/__pycache__/connection.cpython-36.pyc |
3
nf�\ � @ sn d dl mZ d dlZddlmZmZ ddlmZ dd� Zej ddfd d
�Z
d d � Z d
d� Z dd� Z
e
d�ZdS )� )�absolute_importN� )�NoWayToWaitForSocketError�
wait_for_read� )�_appengine_environc C sJ t | dd�}|dkrdS |dkr$dS y t|dd�S tk
rD dS X dS )a
Returns True if the connection is dropped and should be closed.
:param conn:
:class:`httplib.HTTPConnection` object.
Note: For platforms like AppEngine, this will always return ``False`` to
let the platform handle connection recycling transparently for us.
�sockFNTg )�timeout)�getattrr r )Zconnr � r � /usr/lib/python3.6/connection.py�is_connection_dropped s
r
c C s� | \}}|j d�r |jd�}d}t� }x�tj|||tj�D ]�}|\} }
} } }
d}yHtj| |
| �}t||� |tjk r~|j|� |r�|j |� |j
|
� |S tj k
r� } z |}|dk r�|j � d}W Y dd}~X q:X q:W |dk r�|�tj d��dS )ad Connect to *address* and return the socket object.
Convenience function. Connect to *address* (a 2-tuple ``(host,
port)``) and return the socket object. Passing the optional
*timeout* parameter will set the timeout on the socket instance
before attempting to connect. If no *timeout* is supplied, the
global default timeout setting returned by :func:`getdefaulttimeout`
is used. If *source_address* is set it must be a tuple of (host, port)
for the socket to bind as a source address before making the connection.
An host of '' or port 0 tells the OS to use the default.
�[z[]Nz!getaddrinfo returns an empty list)
�
startswith�strip�allowed_gai_family�socketZ getaddrinfoZ SOCK_STREAM�_set_socket_options�_GLOBAL_DEFAULT_TIMEOUTZ
settimeout�bindZconnect�error�close)Zaddressr Zsource_addressZsocket_options�hostZport�err�family�resZafZsocktype�protoZ canonnameZsar �er r r �create_connection! s2
r c C s( |d kr d S x|D ]}| j |� qW d S )N)Z
setsockopt)r Zoptions�optr r r r U s
r c C s t j} trt j} | S )z�This function is designed to work in the context of
getaddrinfo, where family=socket.AF_UNSPEC is the default and
will perform a DNS search for both IPv6 and IPv4 records.)r ZAF_INET�HAS_IPV6Z AF_UNSPEC)r r r r r ] s r c C sb d}d}t j� rdS tjrRy"tjtj�}|j| df� d}W n tk
rP Y nX |r^|j� |S )z6 Returns True if the system can bind an IPv6 address. NFr T)r Zis_appengine_sandboxr �has_ipv6ZAF_INET6r � Exceptionr )r r r! r r r � _has_ipv6h s r# z::1)Z
__future__r r �waitr r Zcontribr r
r r r r r# r r r r r �<module> s 3
........