Current File : //lib/python3/dist-packages/aptdaemon/__pycache__/lock.cpython-312.pyc
�
��kd� � � � d Z dZdZddlZddlZddlZddlZddlmZ ddl m
Z
ddl m Z G d� d e
� Z G d
� d e� Zd � Z ej$ � ej& j) ej* j- d
� � Z eej& j1 ed� � Z eej& j1 ed� � Zej* j7 d� Z eej& j1 e d� � Z eej& j1 ej* j7 d� d� � Z d� Z d� Z dd�Z!y)zHandles the apt system lockz%Sebastian Heinlein <devel@glatzor.de>)�LockFailedError�system� N)�GLib)�enums)�TransactionCancelledc � � e Zd ZdZdd�Zy)r zThe locking of file failed.Nc �j � d|z }|r|d|z z
}t j | |� || _ || _ y)z�Return a new LockFailedError instance.
Keyword arguments:
flock -- the path of the file lock
process -- the process which holds the lock or None
z Could not acquire lock on %s.z The lock is held by %s.N)� Exception�__init__�flock�process)�selfr r
�msgs �0/usr/lib/python3/dist-packages/aptdaemon/lock.pyr zLockFailedError.__init__' s? � � .��5�� � �-��7� 7�C����4��%���
� �� � �N)�__name__�
__module__� __qualname__�__doc__r � r r r r # s
� �%� r r c �2 � e Zd ZdZd� Zed� � Zd� Zd� Zy)�FileLockzRepresents a file lock.c � � || _ d | _ y r )�path�fd)r r s r r zFileLock.__init__: s � ��� ���r c � � | j d uS r )r �r s r �lockedzFileLock.locked> s � ��w�w�d�"�"r c �� � | j r | j S t j | j � }|dk r+t | j � }t | j |� �|| _ |S )zuReturn the file descriptor of the lock file or raise
LockFailedError if the lock cannot be obtained.
r )r �apt_pkg�get_lockr �get_locking_process_namer )r �fd_lockr
s r �acquirezFileLock.acquireB sZ � � �7�7��7�7�N��"�"�4�9�9�-�� �Q�;�.�t�y�y�9�G�!�$�)�)�W�5� 5� �D�G��Nr c �j � | j r't j | j � d| _ yy)zRelase the lock.N)r �os�closer s r �releasezFileLock.releaseP s% � � �7�7� �H�H�T�W�W� ��D�G� r N) r r r r r �propertyr r% r) r r r r r 6 s( � �!�� �#� �#� � r r c �� � t | d� }t j dt j t
j ddd� }t j |t j |� }t j d|� d } t d|z d� 5 } d� |j � D � D ]5 \ }}|dk( s� |j � c cddd� |j � S ddd� |j � y# t $ r Y ddd� |j � yw xY w# 1 sw Y �AxY w# t $ r Y |j � yw xY w# |j � w xY w# t $ r Y yw xY w) zjReturn the name of a process which holds a lock. It will be None if
the name cannot be retrivied.
�r�hhQQir � z/proc/%s/statusc 3 �> K � | ] }|j d � �� � y�w)�:N)�split)�.0�lines r � <genexpr>z+get_locking_process_name.<locals>.<genexpr>h s � �� � '>�4�t�z�z�#�� '>�s � �NameN)�open�struct�pack�fcntl�F_WRLCKr' �SEEK_SET�F_GETLK�unpack� readlines�stripr( r
�IOError)� lock_path� fd_lock_read�flk�flk_ret�pid� fd_status�key�values r r# r# W s[ � �!��I�s�+� �
�k�k�'�5�=�=�"�+�+�q�!�Q�G���+�+�l�E�M�M�3�?���m�m�G�W�-�a�0�� !��'�#�-�s�3�
�y� �'>�'0�':�':�'<�'>� 1�
��U� �&�=�#(�;�;�=� 0�
�
�
� � � �1�
�
� � � � ��
!� � �
�
� � � � ��
�
�� � �� � � � � ��
� � � ��) � ���s� � E$ �D0 �D$�"C=�7C=� D0 �"C=�$D0 �= D!�D$�D0 � D!�!D$�$D-�)D0 �0 E �9E � E � E �E!�$ E0�/E0zDir::State::status�lockz
lock-frontendzDir::Cache::ArchiveszDir::State::listsc � � t t t t fD ] } | j r�| j � �! dt j d< y# t
� � xY w)z<Acquire an exclusive lock for the package management system.�1�DPKG_FRONTEND_LOCKEDN) �
frontend_lock� status_lock� archive_lock�
lists_lockr r% r) r' �environ�rI s r r% r% � sO � ��!�;� �j�H� �D��;�;�� � �� � *-�B�J�J�%�&�� �� �
�s �%A �A �
A c � � t t t t fD ] } | j � � t
j d= y# t $ r Y yw xY w)z<Release an exclusive lock for the package management system.rL N)rP rO rN rM r) r' rQ �KeyErrorrR s r r) r) � sG � ��L�+�}�D� �� � � ���
� �J�J�-� .�� �
� �
�s �? � A �
A c �> � �� �� fd�} �r�j � yt � y# t $ r�}d� _ t j � _ |j r%� j d� }||j z � _ t j d|� }� j rG� j s;t j � j � � j r
� j s�;t j |� � j r
t � �Y d}~yd}~ww xY w)z�Acquire the system lock or the optionally given one. If the lock
cannot be obtained pause the transaction in the meantime.
:param trans: the transaction
:param lock: optional alternative lock
c �n �� � r� j � n
t � d�_ y# t $ r Y yw xY w)z�Helper to unpause the transaction if the lock can be obtained.
Keyword arguments:
trans -- the corresponding transaction
alt_lock -- alternative lock to the system lock
TF)r% r �paused)�alt_lock�transs ��r �
watch_lockz!wait_for_lock.<locals>.watch_lock� s< �� � ��� � �"�� � �� ��� � �� �s � ( � 4�4TzWaiting for %s to exit� N)r% r rW r �STATUS_WAITING_LOCK�statusr
�gettext�status_detailsr �timeout_add_seconds� cancelled�main_context_default� iteration�
source_remover )rY rX rZ �errorr �
lock_watchs `` r �
wait_for_lockrg � s� �� ��")� � � � � � �I�� � )��� � �0�0�� � �=�=��-�-� 8�9�C�#&�� � �#6�E� ��-�-�a��<�
��l�l�5�?�?� � %� %� '� 1� 1� 3� �l�l�5�?�?� ���:�&� �?�?�&�(� (� �� )�s �( �
( � D �B5D�'+D�D r )"r �
__author__�__all__r9 r' r7 r! �
gi.repositoryr � aptdaemonr �aptdaemon.errorsr r
r �objectr r# �initr �dirname�config� find_file� _status_dir�joinrN rM �find_dir�
_archives_dirrO rP r% r) rg r r r �<module>rv s �� "�" 5�
�
'�� � �
� � � � 1� �i� �& �v� �B�:
�� � �� �g�g�o�o�g�n�n� 6� 6�7K� L�M� ��r�w�w�|�|�K��8�9� ����� � �k�?�C�D�
� ���'�'�(>�?�
����� � �]�F�;�<� � �b�g�g�l�l� �N�N��� /�0�&�:� ;�
�
-�
�))r
Mini Shell