-í õÔ5;csßdZ  dklZ dkZdkZdkZdkZeddfd„Z(eƒ\ZZ ,dei fd„ƒYZ 0e Z 4dfd „ƒYZ Òe ZÔd „Zßed joàeƒndS( s FileLock - Implements a file lock mechanism that does not depend on fcntl. Copyright (c) 1997-2000, Marc-Andre Lemburg; mailto:mal@lemburg.com See the documentation for further information on copyrights, or contact the author. All Rights Reserved. (s ExitFunctionsNs localhosts 127.0.0.1cs¿ydk}Wntj o|SnXyO|tjo |iƒ}n!|i|ƒ}"|i|ƒd}Wn #|i j o$|SnX&||fSdS(sÿ Returns fully qualified (hostname, ip) for the given hostname. If hostname is not given, the default name of the local host is chosen. Defaults to default in case an error occurs while trying to determine the data. Ni( ssockets ImportErrorsdefaultshostnamesNones gethostnames gethostbynamesips gethostbyaddrserror(shostnamesdefaultssocketsip((s:/mit/seven/lib/python2.2/site-packages/mx/Misc/FileLock.pys _fqhostnames   sErrorcs,tZ-RS(N(s__name__s __module__(((s:/mit/seven/lib/python2.2/site-packages/mx/Misc/FileLock.pysError,s sSymbolicFileLockc s¤4tZdZDFdZHd„ZPd„ZYddeieeie i e e d„Z ¢de ieeie i d„Z¿e id„ZËd „ZRS( sÚ Implements a file lock mechanism that uses symbolic links for locking. Note that since the mechanism does not use file system function calls this may not always work in the desired way. The lock is acquired per process, not per thread. Instancevariables: filename - file the lock applies to lockfilename - name of the lock file locked - indicator if the lock is in position (1) or not (0) icsBHJ||_K|d|_Ld|_Nti|iƒdS(Ns.lockedi(sfilenamesselfs lockfilenameslockeds ExitFunctionssregistersunlock(sselfsfilename((s:/mit/seven/lib/python2.2/site-packages/mx/Misc/FileLock.pys__init__Hs  csRPR|ioS|idƒnTyUti|iƒWn VWnXdS(Ni(sselfslockedsunlocks ExitFunctionss deregister(sself((s:/mit/seven/lib/python2.2/site-packages/mx/Misc/FileLock.pys__del__Ps  iôf0.0001c sjYlm|io ndSno|i} pd|tiƒf} q|ƒ|d} sti i }tti }uti} vxÖvdoËx|| ƒ o;yyz|| | ƒWn{|j o }nXPn€||ƒ|ƒ| jo[ƒy%„ti| | ƒdƒ\} }Wn1…|j o"}†|d|i|f‚nX‰ti|ƒ}Š| |jo2Œt| dddfƒd}||j}n d}|ou’y“ti|d ƒWnT”|j oE}–y—ti|iƒWn˜|j o šnXœq„nXn|d |i| ||f‚nq„W d|_dS( s= Try to lock the file for this process, waiting timeout ms if necessary. Raises an exception if a timeout occurs. Multiple locking by the same process is not an error. Note that a non existent path to the file will also result in a timeout. If the lock is held by a process running on our host, a timeout will first invoke a check of the locking process. If it is not alive anymore, the lock is removed and granted to the current process. Ns%s:%if0.001is:s!file "%s" could not be locked: %ssdefaults???is$file "%s" is locked by process %s:%i( sselfslockeds lockfilenameshostnamesossgetpidslockinfostimestimeoutsstopspathsislinkssymlinksmakelinksreadlinkserrorssleeps sleeptimesstringssplitshosts locking_pidsErrorswhysfilenamesatois _fqhostnamesother_ipsipssamehostskillsunlink(sselfstimeouts sleeptimessleepsErrorstimeserrorshostnamesips lockfilenamesstopshostsreadlinkslockinfoswhysmakelinkssamehostsother_ips locking_pidsislink((s:/mit/seven/lib/python2.2/site-packages/mx/Misc/FileLock.pyslockYsN       %  (cs”¢±²|i o ³dSn´d|_µy¶||iƒWn)·|j o¸|d|i‚nX»|o¼||ƒn½dSdS(s Release the lock, letting other processes using this mechanism access the file. Multiple unlocking is not an error. Raises an exception if the lock file was already deleted by another process. After having unlocked the file the process sleeps for sleeptime seconds to give other processes a chance to acquire the lock too. If the lock will only be used every once in a while by the process, it is safe to set it to 0. Nislock file "%s" is already gonei(sselfslockedsunlinks lockfilenameserrorsErrors sleeptimessleep(sselfs sleeptimesunlinksErrorssleepserror((s:/mit/seven/lib/python2.2/site-packages/mx/Misc/FileLock.pysunlock¢s   cs=¿ÄÅd|_ÆyÇ||iƒWn ÈÉnXdS(s/ Remove any existing lock on the file. iN(sselfslockedsunlinks lockfilename(sselfsunlink((s:/mit/seven/lib/python2.2/site-packages/mx/Misc/FileLock.pys remove_lock¿s  cs*ËÍd|ii|it|ƒfSdS(Ns<%s for "%s" at %x>(sselfs __class__s__name__sfilenamesid(sself((s:/mit/seven/lib/python2.2/site-packages/mx/Misc/FileLock.pys__repr__Ës(s__name__s __module__s__doc__slockeds__init__s__del__stimessleepsErrorsosserrorshostnamesipslocksunlinksunlocks remove_locks__repr__(((s:/mit/seven/lib/python2.2/site-packages/mx/Misc/FileLock.pysSymbolicFileLock4s   -I$ cspÔÖtdƒ}×xPtdƒD×]?}Ød|GÙ|iƒÚti|dƒÛ|iƒq"WÝHdS(Ns test.locki's%i f100000.0(sSymbolicFileLockslocksrangesistimessleepsunlock(sislock((s:/mit/seven/lib/python2.2/site-packages/mx/Misc/FileLock.pys_testÔs   s__main__(s__doc__s ExitFunctionssoss exceptionsstimesstringsNones _fqhostnameshostnamesips StandardErrorsErrors FileLockErrorsSymbolicFileLocksFileLocks_tests__name__( shostnamesstrings _fqhostnamesips_teststimesSymbolicFileLocksFileLocks ExitFunctionssErrors exceptionss FileLockErrorsos((s:/mit/seven/lib/python2.2/site-packages/mx/Misc/FileLock.pys? s ' ž