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���c� � @ s d Z ddlZddlZdd� ZdS )z�A utility module which has FD-related functions.
This module mostly exists for L{clean_fds}, so it can be imported without
accidentally getting a reactor or something else that might create a critical
file descriptor.
� Nc C sN t �t j�d } td| �}td|�D ]}zt�|� W q ty$ Y qw dS )z�Close all non-stdio file descriptors.
This should be called at the beginning of a program to avoid inheriting any
unwanted file descriptors from the invoking process. Unfortunately, this
is really common in unix!
� i � N)�resource� getrlimit�
RLIMIT_NOFILE�min�range�os�close�OSError)�
rlimit_nofile�total_descriptors�fd� r �2/usr/lib/python3/dist-packages/landscape/lib/fd.py� clean_fds s
��r )�__doc__r r r r r r r �<module> s