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� Hq�Qc @ sw d d l Z d d l Z d d l Z d d l Z d d l Z d d l Z d d l Z d e f d � � YZ d � Z d S( i����Nt lockc B sS e Z d Z d Z d d d d � Z d � Z d � Z d � Z d � Z d � Z RS( s� 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/.i����c C sS | | _ d | _ | | _ | | _ | | _ g | _ t j � | _ | j � d S( Ni ( t ft heldt timeoutt releasefnt desct postreleaset ost getpidt pidR ( t selft fileR R R ( ( s4 /usr/lib64/python2.7/site-packages/mercurial/lock.pyt __init__ s c C s< | j r. t j d d t d d �d | _ n | j � d S( Ns$ use lock.release instead of del lockt categoryt stackleveli i ( R t warningst warnt DeprecationWarningt release( R ( ( s4 /usr/lib64/python2.7/site-packages/mercurial/lock.pyt __del__* s c C s� | j } x� t r� y | j � d SWq t j k r� } | d k rq t j d � | d k r | d 8} q q n t j t j | j | j | j � � q Xq Wd S( Ni i ( R t Truet trylockt errort LockHeldt timet sleept errnot ETIMEDOUTt filenameR t locker( R R t inst( ( s4 /usr/lib64/python2.7/site-packages/mercurial/lock.pyR 6 s c C s | j r | j d 7_ d St j d k r= t j � t _ n d t j | j f } x� | j sy t j | | j � d | _ WqV t t f k r} | j t j k r� | j � } | d k r t j t j | j | j | � � q qt j | j | j | j | j � � qV XqV Wd S( Ni s %s:%s( R R t _hostt Nonet sockett gethostnameR t utilt makelockR t OSErrort IOErrorR t EEXISTt testlockR R t EAGAINR t LockUnavailablet strerrorR ( R t locknamet whyR ( ( s4 /usr/lib64/python2.7/site-packages/mercurial/lock.pyR E s$ c C s y t j | j � } Wn, t k rD } | j t j k r> d S� n Xy | j d d � \ } } Wn t k ru | SX| t j k r� | Sy t | � } Wn t k r� | SXt j | � r� | Sy7 t | j d d d �} t j | j � | j � Wn t j k r| SXd S( so 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. t :i s .breakR i N( R# t readlockR R% R t ENOENTR t splitt ValueErrorR R t intt testpidt unlinkR R t LockError( R R R- t hostR t l( ( s4 /usr/lib64/python2.7/site-packages/mercurial/lock.pyR( Z s0 c C s� | j d k r! | j d 8_ n� | j d k r� d | _ t j � | j k rR d S| j rh | j � n y t j | j � Wn t k r� n Xx | j D] } | � q� Wn d S( s� 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.i i N( R R R R R R# R5 R R% R ( R t callback( ( s4 /usr/lib64/python2.7/site-packages/mercurial/lock.pyR � s N( t __name__t __module__t __doc__R R R R R R R( R ( ( ( s4 /usr/lib64/python2.7/site-packages/mercurial/lock.pyR s &c G s. x' | D] } | d k r | j � q q Wd S( N( R R ( t locksR ( ( s4 /usr/lib64/python2.7/site-packages/mercurial/lock.pyR � s ( R# R R R R! R R t objectR R ( ( ( s4 /usr/lib64/python2.7/site-packages/mercurial/lock.pyt <module> s 0 �