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a ]��d�" � @ s� d dl mZ d dlZd dlZd dlZd dlZd dlZd dlmZm Z d dl m Z d dl m Z d dlmZ ddlmZ e�d �ZG d d � d �ZG d d � d eej�Zd d gZdS )� )� annotationsN)�ABC�abstractmethod)�Lock)� TracebackType)�Any� )�TimeoutZfilelockc @ sB e Zd ZdZddd�dd�Zdd�dd �Zd d d dd �dd�ZdS )�AcquireReturnProxyzDA context aware object that will release the lock file when exiting.� BaseFileLock�None)�lock�returnc C s || _ d S �N�r )�selfr � r �1/usr/lib/python3.9/site-packages/filelock/_api.py�__init__ s zAcquireReturnProxy.__init__�r c C s | j S r r �r r r r � __enter__ s z AcquireReturnProxy.__enter__�type[BaseException] | None�BaseException | None�TracebackType | None��exc_type� exc_value� tracebackr c C s | j �� d S r )r �release�r r r r r r r �__exit__ s zAcquireReturnProxy.__exit__N)�__name__� __module__� __qualname__�__doc__r r r! r r r r r s r c @ s� e Zd ZdZd0dddd�dd�Zed d �d d ��Zedd �d d��Zejddd�dd��Ze dd �dd��Z e dd �dd��Z edd �dd��Z d1ddd �d dd dd d �d d!�Z d2ddd#�d$d%�Zd d �d&d'�Zd(d)d*dd+�d,d-�Zdd �d.d/�ZdS )3r z+Abstract base class for a file lock object.���zstr | os.PathLike[Any]�floatr )� lock_file�timeoutr c C s* t �|�| _d| _|| _t� | _d| _dS )a� Create a new lock object. :param lock_file: path to the file :param timeout: default timeout when acquiring the lock. It will be used as fallback value in the acquire method, if no timeout value (``None``) is given. If you want to disable the timeout, set it to a negative value. A timeout of 0 means, that there is exactly one attempt to acquire the file lock. Nr )�os�fspath� _lock_file� _lock_file_fdr) r � _thread_lock� _lock_counter)r r( r) r r r r * s zBaseFileLock.__init__�strr c C s | j S )z :return: path to the lock file)r, r r r r r( D s zBaseFileLock.lock_filec C s | j S )zU :return: the default timeout value .. versionadded:: 2.0.0 )�_timeoutr r r r r) I s zBaseFileLock.timeoutz float | str)�valuer c C s t |�| _dS )zX Change the default timeout value. :param value: the new value N)r' r1 )r r2 r r r r) R s c C s t �dS )zbIf the file lock could be acquired, self._lock_file_fd holds the file descriptor of the lock file.N��NotImplementedErrorr r r r �_acquire[ s zBaseFileLock._acquirec C s t �dS )z6Releases the lock and sets self._lock_file_fd to None.Nr3 r r r r �_release` s zBaseFileLock._release�boolc C s | j duS )z� :return: A boolean indicating if the lock file is holding the lock currently. .. versionchanged:: 2.0.0 This was previously a method and is now a property. N)r- r r r r � is_lockede s zBaseFileLock.is_lockedN皙�����?T)�poll_intervall�blockingz float | Noner )r) � poll_intervalr: r; r c C s� |du r| j }|dur.d}tj|tdd� |}| j� | jd7 _W d � n1 sX0 Y t| �}| j}t� � }z�| j�, | j s�t � d||� | � � W d � n1 s�0 Y | j r�t � d||� �qVqz|du r�t � d ||� t| j��qzd | k�rt� � | k �r6n nt � d ||� t| j��qzd }t � ||||� t�|� qzW nP t�y� | j�" td | jd �| _W d � n1 �s�0 Y � Y n0 t| d �S )a^ Try to acquire the file lock. :param timeout: maximum wait time for acquiring the lock, ``None`` means use the default :attr:`~timeout` is and if ``timeout < 0``, there is no timeout and this method will block until the lock could be acquired :param poll_interval: interval of trying to acquire the lock file :param poll_intervall: deprecated, kept for backwards compatibility, use ``poll_interval`` instead :param blocking: defaults to True. If False, function will return immediately if it cannot obtain a lock on the first attempt. Otherwise this method will block until the timeout expires or the lock is acquired. :raises Timeout: if fails to acquire lock within the timeout period :return: a context object that will unlock the file when the context is exited .. code-block:: python # You can use this method in the context manager (recommended) with lock.acquire(): pass # Or use an equivalent try-finally construct: lock.acquire() try: pass finally: lock.release() .. versionchanged:: 2.0.0 This method returns now a *proxy* object instead of *self*, so that it can be used in a with statement without side effects. Nz+use poll_interval instead of poll_intervall� )� stacklevelr z#Attempting to acquire lock %s on %szLock %s acquired on %sFz+Failed to immediately acquire lock %s on %sr z"Timeout on acquiring lock %s on %sz2Lock %s not acquired on %s, waiting %s seconds ...r )r) �warnings�warn�DeprecationWarningr. r/ �idr, �time� monotonicr8 �_LOGGER�debugr5 r �sleep� BaseException�maxr ) r r) r< r: r; �msg�lock_id� lock_filenameZ start_timer r r �acquireq sB (,& $ 2zBaseFileLock.acquireF)�forcer c C s� | j �l | jrd| jd8 _| jdks*|rdt| �| j }}t�d||� | �� d| _t�d||� W d � n1 sx0 Y dS )a* Releases the file lock. Please note, that the lock is only completely released, if the lock counter is 0. Also note, that the lock file itself is not automatically deleted. :param force: If true, the lock counter is ignored and the lock is released in every case/ r r z#Attempting to release lock %s on %szLock %s released on %sN)r. r8 r/ rB r, rE rF r6 )r rN rK rL r r r r � s zBaseFileLock.releasec C s | � � | S )zE Acquire the lock. :return: the lock object )rM r r r r r � s zBaseFileLock.__enter__r r r r c C s | � � dS )z� Release the lock. :param exc_type: the exception type if raised :param exc_value: the exception value if raised :param traceback: the exception traceback if raised N�r r r r r r! � s zBaseFileLock.__exit__c C s | j dd� dS )z'Called when the lock object is deleted.T)rN NrO r r r r �__del__� s zBaseFileLock.__del__)r& )Nr9 )F)r" r# r$ r% r �propertyr( r) �setterr r5 r6 r8 rM r r r! rP r r r r r ' s0 ��Q r )Z __future__r � contextlibZloggingr* rC r? �abcr r � threadingr �typesr �typingr �_errorr Z getLoggerrE r �ContextDecoratorr �__all__r r r r �<module> s" N�
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