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Editing: lock.cpython-310.pyc
o �]Lb�/ � @ s� d dl mZ d dlZd dlZd dlZd dlZd dlZd dlZd dlZddl m Z ddl m Z ddl mZmZm Z mZ ddlmZ dd � Zejd d � �Zd d � ZG dd� de�Zdd� ZdS )� )�absolute_importN� )�_)�getattr)�encoding�error�pycompat�util)�procutilc C sx t �t�� �} tj�d�r:z | dt�d�j 7 } W | S t y9 } z|j t j t j t jfvr.� W Y d}~| S d}~ww | S )a Return a string which is used to differentiate pid namespaces It's useful to detect "dead" processes and remove stale locks with confidence. Typically it's just hostname. On modern linux, we include an extra Linux-specific pid namespace identifier. s linuxs /%xs /proc/self/ns/pidN)r � strtolocal�socket� gethostnamer � sysplatform� startswith�os�stat�st_ino�OSError�errno�ENOENT�EACCES�ENOTDIR)�result�ex� r �0/usr/lib/python3/dist-packages/mercurial/lock.py�_getlockprefix s � ���r c # s � g � d�i } dd� �� ��fdd�}zRdD ]}t t|d�}|r+|| vr+t�|�| |< qz | D ]}t�||� q/W n tyB Y nw d�dV W d�z| �� D ] \}}t�||� qPW n& tye Y n w d�z| �� D ] \}}t�||� qmW w ty� Y w w � r��� d � dS dS ) a@ Block signal interrupt while doing something critical This makes sure that the code block wrapped by this context manager won't be interrupted. For Windows developers: It appears not possible to guard time.sleep() from CTRL_C_EVENT, so please don't use time.sleep() to test if this is working. Fc S s* | t tdd �ks| t tdd �krt�tj�)N�SIGINT� CTRL_C_EVENT)r �signal�KeyboardInterruptr �SignalInterrupt)�numr r r �raiseinterrupt? s �z)_delayedinterrupt.<locals>.raiseinterruptc s �r � � | � d S �| � d S �N)�append)r" �frame�� assertedsigs�blockedr# r r � catchtermG s z$_delayedinterrupt.<locals>.catchterm)s CTRL_C_EVENTs SIGINTs SIGBREAKs SIGHUPs SIGTERMNTr )r r � getsignal� ValueError�items)� orighandlersr* �namer" �handlerr r' r �_delayedinterrupt0 sP � �� �� ��� ��r1 c sH � fdd�}t ||dg|�R ddi|��� |r|rdnd}d} |s$d} n|r(|} d} z� �� W nC tjys } z5| |krE|| j| j� | | krP|| j| j� || kr`t�tj| j � j | j��t � d� | d7 } W Y d } ~ nd } ~ ww q+| � _ � j r�d| kr�� j kr�n n | �td �� j � n| �d � j � � jr�� �� � S ) z�return an acquired lock or raise an a LockHeld exception This function is responsible to issue warnings and or debug messages about the held lock while trying to acquires it.c sd d|v r |� dd�\}}td�t�� j�t�|�t�|�f }n td�� jt�|�f }| |� dS )z=issue the usual "waiting on lock" message through any channel� :r s5 waiting for lock on %s held by process %r on host %r s" waiting for lock on %s held by %r N)�splitr r �bytestr�desc)�printer�locker�host�pid�msg��lr r � printwarningy s � ��� z trylock.<locals>.printwarningr �dolockF���Tr Ns got lock after %d seconds )�lock�_trylockr �LockHeld�debugr7 �warnr � ETIMEDOUT�filenamer5 �time�sleep�delayr � acquirefn) �ui�vfs�lockname�timeout� warntimeout�args�kwargsr= �debugidx� warningidxrI �instr r; r �trylocks sF � ���rU c @ s� e Zd ZdZdZ d dd�Zdd� Zd d � Zd d � Zd d� Z dd� Z dd� Z dd� Z dd� Z dd� Zdd� Zd dd �ZdS ) r@ a� An advisory lock held by one process to control access to a set of files. Non-cooperating processes or incorrectly written scripts can ignore Mercurial's locking scheme and stomp all over the repository, so don't do that. Typically used via localrepository.lock() to lock the repository store (.hg/store/) or localrepository.wlock() to lock everything else under .hg/.Nr? Tc C sv || _ || _d| _|| _|| _|| _|| _|rt| _nt j | _g | _ | � � | _ |r7| �� | _| jr9| �� d S d S d S )Nr )rL �f�heldrN � releasefnrJ r5 r1 �_maybedelayedinterruptr �nullcontextmanager� postrelease�_getpidr9 r@ rI ) �selfrL �fnamerN rX rJ r5 � signalsafer> r r r �__init__� s$ �z lock.__init__c C s | S r$ r �r] r r r � __enter__� s zlock.__enter__c C s( t dd� |||fD ��}| j|d� d S )Nc s s � | ]}|d u V qd S r$ r )�.0�ar r r � <genexpr>� s � z lock.__exit__.<locals>.<genexpr>)�success)�all�release)r] �exc_type� exc_value�exc_tbrf r r r �__exit__� s z lock.__exit__c C s( | j rtjdtdd� d| _ | �� d S )Nz$use lock.release instead of del lock� )�category� stacklevelr )rW �warningsrD �DeprecationWarningrh ra r r r �__del__� s � z lock.__del__c C s t �� S r$ )r �getpidra r r r r\ � s z lock._getpidc C s~ | j } z | �� | j | W S tjy> } z#|dkr.t�d� |dkr(|d8 }W Y d }~qt�tj|j| j |j ��d }~ww )NTr r ) rN rA r rB rG rH r rE rF r5 r7 )r] rN rT r r r r@ � s ���z lock.lockc C s` | j r | j d7 _ d S tjd u rt� t_dtj| jf }d}| j s�|r�|d8 }z!| �� � | j�|| j� d| _ W d � n1 sCw Y W nM t t fy� } z?|j t j kr�| � � }|d u rgW Y d }~q | �|�}|d urt�t j| j�| j�| j|��n t�|j |j|j| j��W Y d }~nd }~ww | j s�|s$| j s�t�t j| j�| j�| jd��d S )Nr s %s:%d� � )rW r@ �_hostr r9 rY rL �makelockrV r �IOErrorr �EEXIST� _readlock� _testlockr rB �EAGAIN�joinr5 �LockUnavailable�strerrorrF )r] rM �retry�whyr7 r r r rA sR �� ��� ��� ���z lock._trylockc C sJ z| j �| j�W S ttfy$ } z|jtjkr W Y d}~dS � d}~ww )z�read lock and return its value Returns None if no lock exists, pid for old-style locks, and host:pid for new-style locks. N)rL �readlockrV r rx r r )r] r� r r r rz 3 s ��zlock._readlockc C sx |d u rdS z |� dd�\}}W n ty Y dS w |tjkr"dS zt|�}W n ty2 Y dS w t�|�r:dS dS )NFr2 r T)r3 r, r@ rv �intr �testpid)r] r7 r8 r9 r r r �_lockshouldbebroken@ s" � � zlock._lockshouldbebrokenc C s� | � |�s|S z:t| j| jd dd��$ | �� }| � |�s'|W d � W S | j�| j� W d � W d S 1 s:w Y W d S tjyM | Y S w )Ns .breakr )rN )r� r@ rL rV rz �unlinkr � LockError�r] r7 r r r r{ Q s �&��zlock._testlockc C s | � � }| �|�S )ao return id of locker if lock is valid, else None. If old-style lock, we cannot tell what machine locker is on. with new-style lock, if locker is on this machine, we can see if locker is alive. If locker is on this machine but not alive, we can safely break lock. The lock file is only deleted when None is returned. )rz r{ r� r r r �testlock` s z lock.testlockc C s� | j dkr| j d8 _ dS | j dkr]d| _ | �� | jkr dS z| jr'| �� W z | j�| j� W n ty: Y nw z | j�| j� W w tyM Y w w | jD ]}||� qQd| _dS dS )z�release the lock and execute callback function if any If the lock has been acquired multiple times, the actual release is delayed to the last release call.r r N) rW r\ r9 rX rL r� rV r r[ )r] rf �callbackr r r rh n s0 � �� � �z lock.release)r? NNNTT)T)�__name__� __module__� __qualname__�__doc__rv r` rb rl rr r\ r@ rA rz r� r{ r� rh r r r r r@ � s* � ( r@ c G s | D ] }|d ur |� � qd S r$ )rh )�locksr@ r r r rh � s ��rh )� __future__r � contextlibr r r r rG rp �i18nr r r � r r r �utilsr r �contextmanagerr1 rU �objectr@ rh r r r r �<module> s& B> Z
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