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systemd.cpython-312.pyc
� Ϫ�f� � � � d Z dgZddlmZ ddlmZmZmZmZm Z ddl m Z m Z e G d� d� � Z dedeeef d ee fd �Zdeeef d e e fd �Zy ) z� Integration with systemd. Currently only the minimum APIs necessary for using systemd's socket activation feature are supported. � ListenFDs� )�getpid)�Dict�List�Mapping�Optional�Sequence)�Factory�definec � � e Zd ZU dZee ed< ee� Z ee ed< dZ e d de ee e f de e dd fd �� Zdee fd �Zdee ef fd �Zy) r a� L{ListenFDs} provides access to file descriptors inherited from systemd. Typically L{ListenFDs.fromEnvironment} should be used to construct a new instance of L{ListenFDs}. @cvar _START: File descriptors inherited from systemd are always consecutively numbered, with a fixed lowest "starting" descriptor. This gives the default starting descriptor. Since this must agree with the value systemd is using, it typically should not be overridden. @ivar _descriptors: A C{list} of C{int} giving the descriptors which were inherited. @ivar _names: A L{Sequence} of C{str} giving the names of the descriptors which were inherited. � _descriptors�_names� N�environ�start�returnc � � |�ddl m} |}|� | j }t t � � |j d� k( rt ||� }t |� }ng }d}t |� t |� k7 r | g d� S | ||� S )a� @param environ: A dictionary-like object to inspect to discover inherited descriptors. By default, L{None}, indicating that the real process environment should be inspected. The default is suitable for typical usage. @param start: An integer giving the lowest value of an inherited descriptor systemd will give us. By default, L{None}, indicating the known correct (that is, in agreement with systemd) value will be used. The default is suitable for typical usage. @return: A new instance of C{cls} which can be used to look up the descriptors which have been inherited. r )r � LISTEN_PID� ) �osr �_START�strr �get�_parseDescriptors� _parseNames�len)�clsr r �_environ� descriptors�namess �8/usr/lib/python3/dist-packages/twisted/python/systemd.py�fromEnvironmentzListenFDs.fromEnvironment. s� � �( �?� .� �G� �=��J�J�E� �v�x�=�G�K�K� � 5� 5�%6�u�g�%F�K�#.�w�#7�E� �K��E� �u�:��[�)� )��r�2�;� ��;��&�&� c �, � t | j � S )z6 @return: The configured descriptors. )�listr ��selfs r! �inheritedDescriptorsz ListenFDs.inheritedDescriptors\ s � � �D�%�%�&�&r# c �T � t t | j | j � � S )zr @return: A mapping from the names of configured descriptors to their integer values. )�dict�zipr r r& s r! �inheritedNamedDescriptorsz#ListenFDs.inheritedNamedDescriptorsb s � � �C�� � �T�%6�%6�7�8�8r# )NN)�__name__� __module__� __qualname__�__doc__r �int�__annotations__r �tupler r r � classmethodr r r" r r( r r, r r# r! r r s� � ��$ �3�-� � #�E�N�F�H�S�M�*� �F�� 04� #�+'��'�#�s�(�+�,�+'� ��}�+'� � +'� �+'�Z'�d�3�i� '� 9�4��S��>� 9r# r r r c � � t |d � }t t | | |z � � }|d= |d= |S # t t f$ r g cY S w xY w)a Parse the I{LISTEN_FDS} environment variable supplied by systemd. @param start: systemd provides only a count of the number of descriptors that have been inherited. This is the integer value of the first inherited descriptor. Subsequent inherited descriptors are numbered counting up from here. See L{ListenFDs._START}. @param environ: The environment variable mapping in which to look for the value to parse. @return: The integer values of the inherited file descriptors, in order. � LISTEN_FDSr )r1 r% �range�KeyError� ValueError)r r �countr s r! r r j s_ � � ��G�L�)�*�� �5���� �6�7� � �L� !�7�<�#8����# �j� !� �� ��s �0 �A�Ac �x � | j dd� }t |� dkD rt |j d� � S y)z� Parse the I{LISTEN_FDNAMES} environment variable supplied by systemd. @param environ: The environment variable mapping in which to look for the value to parse. @return: The names of the inherited descriptors, in order. �LISTEN_FDNAMES� r �:r )r r r3 �split)r r s r! r r � s7 � � �K�K�(�"� -�E� �5�z�A�~��U�[�[��%�&�&� r# N)r0 �__all__r r �typingr r r r r �attrsr r r r1 r r r r r# r! �<module>rC s� �� � �-�� � :� :� !� �Q9� Q9� �Q9�h!�S� !�7�3��8�+<� !��c�� !�H ���c��*� �x��}� r#
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