관리-도구
편집 파일: connection.cpython-36.pyc
3 �Re � @ 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 )�connr � r ��/builddir/build/BUILDROOT/alt-python36-pip-20.2.4-5.el8.x86_64/opt/alt/python36/lib/python3.6/site-packages/pip/_vendor/urllib3/util/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�socket� getaddrinfo� SOCK_STREAM�_set_socket_options�_GLOBAL_DEFAULT_TIMEOUT� settimeout�bind�connect�error�close)�addressr �source_address�socket_options�host�port�err�family�res�af�socktype�proto� canonname�sar �er r r �create_connection! s2 r+ c C s( |d kr d S x|D ]}| j |� qW d S )N)� setsockopt)r �options�optr r r r Y 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 �AF_INET�HAS_IPV6� AF_UNSPEC)r# r r r r a 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 �is_appengine_sandboxr �has_ipv6�AF_INET6r � Exceptionr )r r r3 r r r � _has_ipv6l s r6 z::1)� __future__r r �waitr r �contribr r r r+ r r r6 r0 r r r r �<module> s 4