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a k�h� � @ s� U d Z ddlZddlmZmZmZ ddlmZ ddl m Z m Z ddl m Z mZ ddlmZ ddlmZ G d d � d e �Zee�G d d � d ��Zee�G d d� d��Ze� Zeed< G dd� de�ZG dd� de�ZG dd� de�ZG dd� de�Z dS )z PID file. � N)�getpid�kill�name)� TracebackType)�Optional�Type)� Interface� implementer)�Logger)�FilePathc @ s~ e Zd ZdZed�dd�Zdd�dd�Zdd�dd �Zed�d d �Z d d�d d �Z e e e e e e e e e d�dd�ZdS )�IPIDFilez5 Manages a file that remembers a process ID. ��returnc C s dS )a+ Read the process ID stored in this PID file. @return: The contained process ID. @raise NoPIDFound: If this PID file does not exist. @raise EnvironmentError: If this PID file cannot be read. @raise ValueError: If this PID file's content is invalid. N� r r r ��/root/rpmbuild/BUILDROOT/imh-python39-modules-3.9.7-92.el8.x86_64/opt/imh-python/lib/python3.9/site-packages/twisted/application/runner/_pidfile.py�read s z IPIDFile.readNc C s dS )z� Store the PID of the current process in this PID file. @raise EnvironmentError: If this PID file cannot be written. Nr r r r r �writeRunningPID$ s zIPIDFile.writeRunningPIDc C s dS )zm Remove this PID file. @raise EnvironmentError: If this PID file cannot be removed. Nr r r r r �remove+ s zIPIDFile.removec C s dS )a Determine whether there is a running process corresponding to the PID in this PID file. @return: True if this PID file contains a PID and a process with that PID is currently running; false otherwise. @raise EnvironmentError: If this PID file cannot be read. @raise InvalidPIDFileError: If this PID file's content is invalid. @raise StalePIDFileError: If this PID file's content refers to a PID for which there is no corresponding running process. Nr r r r r � isRunning2 s zIPIDFile.isRunningc C s dS )z� Enter a context using this PIDFile. Writes the PID file with the PID of the running process. @raise AlreadyRunningError: A process corresponding to the PID in this PID file is already running. Nr r r r r � __enter__@ s zIPIDFile.__enter__��excType�excValue� tracebackr c C s dS )zS Exit a context using this PIDFile. Removes the PID file. Nr )r r r r r r �__exit__J s zIPIDFile.__exit__)�__name__� __module__� __qualname__�__doc__�intr r r �boolr r r r � BaseExceptionr r r r r r r s �r c @ s� e Zd ZdZe� Zeeed�dd��Z e dd�dd�Z ed �d d �Z edd�d d �Z dd �dd�Zdd �dd�Zed �dd�Zeeed�dd��Zd d �dd�Zeee ee ee dd�dd�ZdS )�PIDFilez� Concrete implementation of L{IPIDFile}. This implementation is presently not supported on non-POSIX platforms. Specifically, calling L{PIDFile.isRunning} will raise L{NotImplementedError}. ��pidr c C s t | �� d��� S )z� Format a PID file's content. @param pid: A process ID. @return: Formatted PID file contents. � )r �encode�r$ r r r �_formatb s zPIDFile._formatN)�filePathr c C s || _ dS )zD @param filePath: The path to the PID file on disk. N)r) )�selfr) r r r �__init__m s zPIDFile.__init__r c C s� d}z<| j �� � }|D ]} q qW d � n1 s40 Y W n: tyz } z"|jtjkrdtd��� W Y d }~n d }~0 0 z t|�W S ty� td|����Y n0 d S )N� �PID file does not existz#non-integer PID value in PID file: ) r) �open�OSError�errno�ENOENT� NoPIDFoundr � ValueError�InvalidPIDFileError)r* Z pidString�fh�er r r r s s ( �z PIDFile.readc C s | j �| j|d�� dS )z� Store a PID in this PID file. @param pid: A PID to store. @raise EnvironmentError: If this PID file cannot be written. r' N)r) Z setContentr( �r* r$ r r r �_write� s zPIDFile._writec C s | � t� � d S �N)r8 r �r* r r r r � s zPIDFile.writeRunningPIDc C s | j �� d S r9 )r) r r: r r r r � s zPIDFile.removec C sF z | � � }W n ty Y dS 0 tdkr4| �|�S tdt� ���d S )NF�posixz isRunning is not implemented on )r r2 � SYSTEM_NAME�_pidIsRunningPOSIX�NotImplementedErrorr7 r r r r � s zPIDFile.isRunningc C sn zt | d� W nV tyd } z>|jtjkr4td��n |jtjkrNW Y d}~dS � W Y d}~nd}~0 0 dS dS )a1 POSIX implementation for running process check. Determine whether there is a running process corresponding to the given PID. @param pid: The PID to check. @return: True if the given PID is currently running; false otherwise. @raise EnvironmentError: If this PID file cannot be read. @raise InvalidPIDFileError: If this PID file's content is invalid. @raise StalePIDFileError: If this PID file's content refers to a PID for which there is no corresponding running process. r z'PID file refers to non-existing processNT)r r/ r0 ZESRCH�StalePIDFileError�EPERM)r$ r6 r r r r= � s zPIDFile._pidIsRunningPOSIXc C s> z| � � rt� �W n ty0 | j�d� Y n0 | �� | S )Nz&Replacing stale PID file: {log_source})r �AlreadyRunningErrorr? �_log�infor r: r r r r � s zPIDFile.__enter__r c C s | � � d S r9 )r �r* r r r r r r r � s zPIDFile.__exit__)r r r r r rB � staticmethodr �bytesr( r r+ r r8 r r r r r= r r r r! r r r r r r r" V s$ �r" c @ s� e Zd ZdZdd�dd�Zed�dd�Zedd�d d �Zdd�d d �Zdd�d d�Z e d�dd�Z d d�dd�Z e ee e e e e dd�dd�ZdS )� NonePIDFilez� PID file implementation that does nothing. This is meant to be used as a "active None" object in place of a PID file when no PID file is desired. Nr c C s d S r9 r r: r r r r+ � s zNonePIDFile.__init__c C s t d��d S )Nr- )r2 r: r r r r � s zNonePIDFile.readr# c C s t tjd��dS )z� Store a PID in this PID file. @param pid: A PID to store. @raise EnvironmentError: If this PID file cannot be written. @note: This implementation always raises an L{EnvironmentError}. zOperation not permittedN)r/ r0 r@ r7 r r r r8 � s zNonePIDFile._writec C s | � d� d S )Nr )r8 r: r r r r � s zNonePIDFile.writeRunningPIDc C s t tjd��d S )NzNo such file or directory)r/ r0 r1 r: r r r r � s zNonePIDFile.removec C s dS )NFr r: r r r r � s zNonePIDFile.isRunningc C s | S r9 r r: r r r r � s zNonePIDFile.__enter__r c C s d S r9 r rD r r r r � s zNonePIDFile.__exit__)r r r r r+ r r r8 r r r r r r r r! r r r r r r rG � s �rG � nonePIDFilec @ s e Zd ZdZdS )rA z% Process is already running. N�r r r r r r r r rA s rA c @ s e Zd ZdZdS )r4 z( PID file contents are invalid. NrI r r r r r4 s r4 c @ s e Zd ZdZdS )r? z[ PID file contents are valid, but there is no process with the referenced PID. NrI r r r r r? s r? c @ s e Zd ZdZdS )r2 z# No PID found in PID file. NrI r r r r r2 s r2 ) r r0 �osr r r r< �typesr �typingr r Zzope.interfacer r Ztwisted.loggerr Ztwisted.python.filepathr r r" rG rH �__annotations__� ExceptionrA r4 r? r2 r r r r �<module> s" By/
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