ó “UoDc@s®ddlmZddlmZmZddlmZddlmZddlZddl Z ddl Z ddl Z yddl m Z Wn!ek r­ddlm Z nXeƒZdefd„ƒYZd efd „ƒYZd efd „ƒYZd efd„ƒYZd„Ze jde jƒZdefd„ƒYZdefd„ƒYZe jdƒZdefd„ƒYZdefd„ƒYZdefd„ƒYZdS(iÿÿÿÿ(tstat(ttimetmktime(t parsedate(ttimegmN(tLocktEntrycBseZdZd„ZRS(s+ A cache entry, mostly an internal object. cCs/tj|ƒ||_t|_tƒ|_dS(N(tobjectt__init__t_keytNOT_INITIALIZEDt_valueRt_lock(tselftkey((s4/usr/lib/python2.7/dist-packages/mod_python/cache.pyR)s   (t__name__t __module__t__doc__R(((s4/usr/lib/python2.7/dist-packages/mod_python/cache.pyR'stCachecBsªeZdZdd„Zd„Zd„Zd„Zd„Zd„Zd„Z d „Z d „Z d „Z d „Z d „Zd„Zd„Zd„Zd„Zd„ZRS(s+ An abstract, multi-threaded cache object. icCshtj|ƒ||_i|_tƒ|_|jrdtdƒ|_|j|j_ |j|j_ ndS(sÚ Builds a cache with a limit of max_size entries. If this limit is exceeded, the Least Recently Used entry is discarded. if max_size==0, the cache is unbounded (no LRU rule is applied). N( RRt_maxsizet_dictRR RtNonet_headt _previoust_next(R tmax_size((s4/usr/lib/python2.7/dist-packages/mod_python/cache.pyR2s     cCs^|j|ƒ}|j|ƒ}|jjƒz|j||ƒ|jƒWd|jjƒXdS(s2 Populates the cache with a given name and value. N(Rt _get_entryR tacquiret_packtcommittrelease(R tnametvalueRtentry((s4/usr/lib/python2.7/dist-packages/mod_python/cache.pyt __setitem__Bs cCs|j|ƒdS(s= Gets a value from the cache, builds it if required. i(t _checkitem(R R((s4/usr/lib/python2.7/dist-packages/mod_python/cache.pyt __getitem__OscCs?|jjƒz|j|ƒ}|j|=Wd|jjƒXdS(N(R RRRR(R RR((s4/usr/lib/python2.7/dist-packages/mod_python/cache.pyt __delitem__Ts  cCsª|jjƒzˆ|jj|ƒ}|swt|ƒ}||j|<|jrd|_|_|j |ƒ|j ƒqn|jr|j |ƒn|SWd|jj ƒXdS(N( R RRtgetRRRRRt_accesst _checklruR(R RR!((s4/usr/lib/python2.7/dist-packages/mod_python/cache.pyR\s      cCs!|j|ƒ}|j|ƒ}|jjƒzá|j|ƒ}t}|tkrŸ|j|||ƒ}|j||||ƒ}t }|j ||ƒ|j ƒn\|j|||ƒ}|dk rû|j||||ƒ}t }|j ||ƒ|j ƒn||||fSWd|jj ƒXdS(s± Gets a value from the cache, builds it if required. Returns a tuple is_new, key, value, entry. If is_new is True, the result had to be rebuilt. N(RRR Rt_unpacktFalseR tchecktbuildtTrueRRRR(R RRR!R tis_newtopened((s4/usr/lib/python2.7/dist-packages/mod_python/cache.pyR#ms(     cCsC|jr;|jjƒz|jjjSWd|jjƒXndSdS(s$ Returns the Most Recently Used key N(RR RRRR RR(R ((s4/usr/lib/python2.7/dist-packages/mod_python/cache.pytmru‹s   cCsC|jr;|jjƒz|jjjSWd|jjƒXndSdS(s% Returns the Least Recently Used key N(RR RRRR RR(R ((s4/usr/lib/python2.7/dist-packages/mod_python/cache.pytlru–s   cCs|S(sO Override this method to extract a key from the name passed to the [] operator ((R R((s4/usr/lib/python2.7/dist-packages/mod_python/cache.pyR¡scCsdS(s} Override this method if you want to do something each time the underlying dictionary is modified (e.g. make it persistent). N((R ((s4/usr/lib/python2.7/dist-packages/mod_python/cache.pyR¥scCs]|jjƒz;|jjƒ|jrG|j|j_|j|j_nWd|jjƒXdS(s Clears the cache N( R RRtclearRRRRR(R ((s4/usr/lib/python2.7/dist-packages/mod_python/cache.pyR2©s   cCsdS(s« Override this method to check whether the entry with the given name is stale. Return None if it is fresh or an opened resource if it is stale. The object returned will be passed to the 'build' method as the 'opened' parameter. Use the 'entry' parameter to store meta-data if required. Don't worry about multiple threads accessing the same name, as this method is properly isolated. N(R(R RRR!((s4/usr/lib/python2.7/dist-packages/mod_python/cache.pyR+´scCs tƒ‚dS(sô Build the cached value with the given name from the given opened resource. Use entry to obtain or store meta-data if needed. Don't worry about multiple threads accessing the same name, as this method is properly isolated. N(tNotImplementedError(R RRR/R!((s4/usr/lib/python2.7/dist-packages/mod_python/cache.pyR,¼scCs |j|jk rœ|jdk rB|j|j_|j|j_n|jj|_||j_|j|_||j_|jj|jkrœ||j_qœndS(sR Internal use only, must be invoked within a cache lock. Updates the access list. N(RRRR(R R!((s4/usr/lib/python2.7/dist-packages/mod_python/cache.pyR'Âs   cCsVt|jƒ|jkrR|jj}|j|j_|j|j_|j|j=ndS(sZ Internal use only, must be invoked within a cache lock. Removes the LRU entry if needed. N(tlenRRRRRR (R R1((s4/usr/lib/python2.7/dist-packages/mod_python/cache.pyR(Ñs  cCs ||_dS(s Store the value in the entry. N(R (R R!R ((s4/usr/lib/python2.7/dist-packages/mod_python/cache.pyRÙscCs|jS(sL Recover the value from the entry, returns NOT_INITIALIZED if it is not OK. (R (R R!((s4/usr/lib/python2.7/dist-packages/mod_python/cache.pyR)Ýs(RRRRR"R$R%RR#R0R1RRR2R+R,R'R(RR)(((s4/usr/lib/python2.7/dist-packages/mod_python/cache.pyR/s$            t WeakCachecBs eZdZd„Zd„ZRS(s This cache holds weak references to the values it stores. Whenever a value is not longer normally referenced, it is removed from the cache. Useful for sharing the result of long computations but letting them go as soon as they are not needed by anybody. cs%tj|‡‡fd†ƒˆ_dS(NcsˆjˆjƒS(N(R%R (tref(R!R (s4/usr/lib/python2.7/dist-packages/mod_python/cache.pytès(tweakrefR6R (R R!R ((R!R s4/usr/lib/python2.7/dist-packages/mod_python/cache.pyRçscCs7|jtkrtS|jƒ}|dkr/tS|SdS(N(R R R(R R!R ((s4/usr/lib/python2.7/dist-packages/mod_python/cache.pyR)ês   (RRRRR)(((s4/usr/lib/python2.7/dist-packages/mod_python/cache.pyR5ás t FileCachecBs/eZdZddd„Zd„Zd„ZRS(s A file cache. Returns the content of the files as a string, given their filename. Whenever the files are modified (according to their modification time) the cache is updated. Override the build method to obtain more interesting behaviour. itrbcCstj||ƒ||_dS(N(RRtmode(R RR;((s4/usr/lib/python2.7/dist-packages/mod_python/cache.pyRùscCsgt|ƒj}|jtkr7||_t||jƒS|j|kr_||_t||jƒSdSdS(N(Rtst_mtimeR R t _timestamptfileR;R(R RRR!t timestamp((s4/usr/lib/python2.7/dist-packages/mod_python/cache.pyR+ýs  cCs z|jƒSWd|jƒXdS(sQ Return the content of the file as a string. Override this for better behaviour. N(treadtclose(R RRR/R!((s4/usr/lib/python2.7/dist-packages/mod_python/cache.pyR, s(RRRRR+R,(((s4/usr/lib/python2.7/dist-packages/mod_python/cache.pyR9ôs cCstt|ƒƒS(N(RR(tt((s4/usr/lib/python2.7/dist-packages/mod_python/cache.pytparseRFC822Timessmax-age\s*=\s*(\d+)t HTTPEntitycBs#eZd„Zd„Zd„ZRS(cCs||_||_dS(N(tentitytmetadata(R RERF((s4/usr/lib/python2.7/dist-packages/mod_python/cache.pyRs cCsdt|jƒ|jfS(NsHTTPEntity(%s, %s)(treprRERF(R ((s4/usr/lib/python2.7/dist-packages/mod_python/cache.pyt__repr__scCs|jS(N(RE(R ((s4/usr/lib/python2.7/dist-packages/mod_python/cache.pyt__str__s(RRRRHRI(((s4/usr/lib/python2.7/dist-packages/mod_python/cache.pyRDs  t HTTPCachecBs eZdZd„Zd„ZRS(sÔ An HTTP cache. Returns the entity found at the given URL. Uses Expires, ETag and Last-Modified headers to minimize bandwidth usage. Partial Cache-Control support (only max-age is supported). cCstj|ƒ}ytƒ|jkr(dSWntk r<nXy |j\}}||j|t|dƒ} t|dƒ} tƒ| | |_t} WqUtk rQqUXnt } yd|df|_t} Wntk r‹nX| sÀyd|df|_WqÀtk r¼qÀXn|SWnBtjk r }|rí|jƒn|jd krdS|‚nXdS( Ns cache-controlitdatetexpiress If-None-MatchtetagsIf-Modified-Sinces last-modifiedi0(turllib2tRequestRt_expiresRtAttributeErrort _validatortheadersturlopentinfoR*t re_max_agetmatchtinttgroupR-tKeyErrort ValueErrorRCt HTTPErrorRAtcode(R RRR!trequesttheaderR R/RSt expirationRWRKRLt validationterror((s4/usr/lib/python2.7/dist-packages/mod_python/cache.pyR+&sb          cCs5z#t|jƒt|jƒƒƒSWd|jƒXdS(N(RDR@tdictRURA(R RRR/R!((s4/usr/lib/python2.7/dist-packages/mod_python/cache.pyR,_s#(RRRR+R,(((s4/usr/lib/python2.7/dist-packages/mod_python/cache.pyRJ!s 9s\W+t ModuleCachecBs#eZdZdd„Zd„ZRS(s¿ A module cache. Give it a file name, it returns a module which results from the execution of the Python script it contains. This module is not inserted into sys.modules. icCstj||dƒdS(Ntr(R9R(R R((s4/usr/lib/python2.7/dist-packages/mod_python/cache.pyRlscBsIz7ejejd|ƒƒ}||_||jU|SWd|jƒXdS(Nt_(tnewtmodulet re_not_wordtsubt__file__t__dict__RA(R RRR/R!Rh((s4/usr/lib/python2.7/dist-packages/mod_python/cache.pyR,os   (RRRRR,(((s4/usr/lib/python2.7/dist-packages/mod_python/cache.pyRdgs tHttpModuleCachecBs#eZdZdd„Zd„ZRS(s¿ A module cache. Give it an HTTP URL, it returns a module which results from the execution of the Python script it contains. This module is not inserted into sys.modules. icCstj||ƒdS(N(RJR(R R((s4/usr/lib/python2.7/dist-packages/mod_python/cache.pyR}scBsszaejejd|ƒƒ}||_|jƒjddƒ}e||dƒ}||jU|SWd|j ƒXdS(NRfs s texec( RgRhRiRjRkR@treplacetcompileRlRA(R RRR/R!RhttextR]((s4/usr/lib/python2.7/dist-packages/mod_python/cache.pyR,€s  (RRRRR,(((s4/usr/lib/python2.7/dist-packages/mod_python/cache.pyRmxs t FunctionCachecBs&eZdd„Zd„Zd„ZRS(icCstj||ƒ||_dS(N(RRtfunction(R RsR((s4/usr/lib/python2.7/dist-packages/mod_python/cache.pyRŒscOs8|r&t|jƒƒ}|||fS||dfSdS(N((ttuplet iteritems(R targstkw((s4/usr/lib/python2.7/dist-packages/mod_python/cache.pyt__call__scCs"|\}}|j|t|ƒŽS(N(RsRc(R RRR/R!RvRw((s4/usr/lib/python2.7/dist-packages/mod_python/cache.pyR,˜s (RRRRxR,(((s4/usr/lib/python2.7/dist-packages/mod_python/cache.pyRr‹s  ( tosRRRtrfc822RtcalendarRRNtreR8Rgt threadingRt ImportErrortdummy_threadingRR RRR5R9RCRptIRVRDRJRiRdRmRr(((s4/usr/lib/python2.7/dist-packages/mod_python/cache.pyts0      ²  D