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On modern linux, we include an extra Linux-specific pid namespace identifier. s linuxs /%xs /proc/self/ns/pidN)r Z strtolocal�socketZ gethostnamer Z sysplatform� startswith�os�stat�st_ino�OSError�errno�ENOENTZEACCES�ENOTDIR)�result�ex� r �4/usr/lib64/python3.9/site-packages/mercurial/lock.py�_getlockprefix s r c # s g � d�i } dd� �� ��fdd�}z�dD ]*}t t|d�}|r*|| vr*t�|�| |< q*z| D ]}t�||� q\W n ty� Y n0 d�dV W d�z"| �� D ]\}}t�||� q�W n ty� Y n0 n>d�z"| �� D ]\}}t�||� q�W n t�y Y n0 0 � �r �� d � 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 s0 | t tdd �ks | t tdd �kr&t�ntj�d S )N�SIGINTZ CTRL_C_EVENT)r �signal�KeyboardInterruptr ZSignalInterrupt)�numr r r �raiseinterrupt? s �z)_delayedinterrupt.<locals>.raiseinterruptc s �r� � | � n�| � d S �N)�append)r �frame�Z assertedsigsZblockedr r r � catchtermG s z$_delayedinterrupt.<locals>.catchterm)s CTRL_C_EVENTs SIGINTs SIGBREAKs SIGHUPs SIGTERMNTr )r r � getsignal� ValueError�items)Z orighandlersr" �namer Zhandlerr r! r �_delayedinterrupt0 s> �r' c sR � fdd�}t ||dg|�R ddi|��� |r6|r6dnd}d} |sHd} n|rP|} d} z� �� W q�W qT tjy� } zj| |kr�|| j| j� | | kr�|| j| j� || kr�t�tj| j � j | j��t � d� | d7 } W Y d} ~ qTd} ~ 0 0 qT| � _ � j �r>d| k�r� j k�r.n n| �td �� j � n| �d � j � � j�rN� �� � 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 }ntd�� 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 Zbytestr�desc)Zprinter�locker�host�pid�msg��lr r � printwarningy s � ���z trylock.<locals>.printwarningr �dolockF���r Ns got lock after %d seconds )�lock�_trylockr �LockHeld�debugr+ �warnr � ETIMEDOUT�filenamer* �time�sleep�delayr � acquirefn) Zui�vfs�lockname�timeoutZ warntimeout�args�kwargsr1 ZdebugidxZ warningidxr= �instr r/ r �trylocks s> � rE c @ sx e Zd ZdZdZd dd�Zdd� Zd d � Zd d � Zd d� Z dd� Z dd� Z dd� Z dd� Z dd� Zdd� Zd dd �ZdS ) r4 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/.Nr3 Tc C sn || _ || _d| _|| _|| _|| _|| _|r6t| _nt j | _g | _ | � � | _ |rj| �� | _| jrj| �� d S )Nr )r? �f�heldrA � releasefnr> r* r' �_maybedelayedinterruptr Znullcontextmanager� postrelease�_getpidr- r4 r= ) �selfr? �fnamerA rH r> r* Z signalsafer2 r r r �__init__� s z lock.__init__c C s | S r r �rL 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>� � z lock.__exit__.<locals>.<genexpr>)�success)�all�release)rL �exc_type� exc_valueZexc_tbrU r r r �__exit__� s z lock.__exit__c C s( | j r tjdtdd� d| _ | �� d S )Nz$use lock.release instead of del lock� )�category� stacklevelr )rG �warningsr8 �DeprecationWarningrW rO r r r �__del__� s �z lock.__del__c C s t �� S r )r �getpidrO r r r rK � s z lock._getpidc C s� | j }z| �� | j | W S tjy� } zR|dkrZt�d� |dkrN|d8 }W Y d }~qt�tj|j| j |j ��W Y d }~qd }~0 0 qd S )Nr r ) rA r5 r r6 r; r< r r9 r: r* r+ )rL rA rD r r r r4 � s �z lock.lockc C sd | j r| j d7 _ d S tjd u r*t� t_dtj| jf }d}| j �s:|�r:|d8 }zB| �� �& | j�|| j� d| _ W d � n1 s�0 Y W q> t t f�y6 } z�|j t j k�r | � � }|d u r�W Y d }~q>| �|�}|d u�r"t�t j| j�| j�| j|��nt�|j |j|j| j��W Y d }~q>d }~0 0 q>| j �s`t�t j| j�| j�| jd��d S )Nr s %s:%d� rT )rG r4 �_hostr r- rI r? ZmakelockrF r �IOErrorr ZEEXIST� _readlock� _testlockr r6 ZEAGAIN�joinr* ZLockUnavailable�strerrorr: )rL r@ Zretry�whyr+ r r r r5 sB ( �� �z lock._trylockc C sZ z| j �| j�W S ttfyT } z(|jtjkr>W Y d}~dS � W Y d}~n d}~0 0 dS )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)r? ZreadlockrF r rd r r )rL ri r r r re 3 s zlock._readlockc C sx |d u r dS z|� dd�\}}W n ty4 Y dS 0 |tjkrDdS z t|�}W n tyd Y dS 0 t�|�rtdS dS )NFr( r T)r) r$ r4 rc �intr Ztestpid)rL r+ r, r- r r r �_lockshouldbebroken@ s zlock._lockshouldbebrokenc C s� | � |�s|S znt| j| jd dd��D | �� }| � |�sN|W d � W S | j�| j� W d � n1 sp0 Y W n tjy� | Y S 0 d S )Ns .breakr )rA )rk r4 r? rF re �unlinkr Z LockError�rL r+ r r r rf Q s 0zlock._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. )re rf rm r r r �testlock` s z lock.testlockc C s� | j dkr| j d8 _ n�| j dkr�d| _ | �� | jkr<dS z8| jrL| �� W z| j�| j� W q� tyr Y q�0 n(z| j�| j� W n ty� Y n0 0 | jD ] }||� q�d| _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) rG rK r- rH r? rl rF r rJ )rL rU �callbackr r r rW n s( � z lock.release)r3 NNNTT)T)�__name__� __module__� __qualname__�__doc__rc rN rP rZ r` rK r4 r5 re rk rf rn rW r r r r r4 � s( � ( r4 c G s | D ]}|d ur|� � qd S r )rW )�locksr4 r r r rW � s rW )Z __future__r � contextlibr r r r r; r^ Zi18nr r r � r r r Zutilsr r �contextmanagerr' rE �objectr4 rW r r r r �<module> s$ B> Z