‰.
„52c      si     d  Z   d   e d ƒ Z  k Z  e i Z  d Z  d f  d „  ƒ  YZ  e e d „ Z d S(   s­  A dumb and slow but simple dbm clone.

For database spam, spam.dir contains the index (a text file),
spam.bak *may* contain a backup of the index (also a text file),
while spam.dat contains the data (a binary file).

XXX TO DO:

- seems to contain a bug when updating...

- reclaim free space (currently, space once occupied by deleted or expanded
items is never reused)

- support concurrent access (currently, if two processes take turns making
updates, they can mess up the index)

- support efficient access to large databases (currently, the whole index
is read when the database is opened, and some updates rewrite the whole index)

- support opening for read-only (flag = 'm')

s   osi   s	   _Databasec     s¡    ! d „  Z  - d „  Z ; d „  Z E d „  Z M d „  Z \ d „  Z c d „  Z i d „  Z { d	 „  Z  d
 „  Z	 ‚ d „  Z
 … d „  Z ˆ d „  Z RS(   Nc   s›   ! " | d |  _ # | d |  _ $ | d |  _ & y ' t |  i d ƒ } Wn+ ( t j
 o ) t |  i d ƒ } n X* | i ƒ  + |  i	 ƒ  d  S(   Ns   .dirs   .dats   .baks   rs   w(
   s   files   selfs   _dirfiles   _datfiles   _bakfiles   _opens   fs   IOErrors   closes   _update(   s   selfs   files   fs   /usr/lib/python/dumbdbm.pys   __init__c   s½   - . h  |  _ / y 0 t |  i ƒ } Wn 1 t j
 o
 2 nw X4 xb 4 d oW 5 | i ƒ  } 6 | o 6 Pn 7 t | ƒ \ } \ } } 8 | | f |  i | <qJ W9 | i ƒ  d  S(   Ni   (   s   selfs   _indexs   _opens   _dirfiles   fs   IOErrors   readlines   lines   evals   keys   poss   sizs   close(   s   selfs   fs   lines   keys   poss   sizs   /usr/lib/python/dumbdbm.pys   _updatec   sï   ; < y < t  i |  i ƒ Wn = t  i j
 o
 = n X> y > t  i |  i |  i ƒ Wn ? t  i j
 o
 ? n X@ t |  i d ƒ } A xH |  i	 i
 ƒ  d A r2 \ } \ } } B | i d | | | f ƒ q¥ WC | i ƒ  d  S(   Ns   wi    s   %s, (%s, %s)
(   s   _oss   unlinks   selfs   _bakfiles   errors   renames   _dirfiles   _opens   fs   _indexs   itemss   keys   poss   sizs   writes   close(   s   selfs   fs   keys   poss   sizs   /usr/lib/python/dumbdbm.pys   _commitc   sh   E F |  i | \ } } G t |  i d ƒ } H | i | ƒ I | i	 | ƒ } J | i ƒ  K | Sd  S(   Ns   rb(   s   selfs   _indexs   keys   poss   sizs   _opens   _datfiles   fs   seeks   reads   dats   close(   s   selfs   keys   poss   sizs   fs   dats   /usr/lib/python/dumbdbm.pys   __getitem__c   s¨   M N t  |  i d ƒ } O | i d d ƒ P | i ƒ  } T | t d t t } U | i	 d | | ƒ V | } X | i	 | ƒ Y | i ƒ  Z | t | ƒ f Sd  S(   Ns   rb+i    i   i   s    (   s   _opens   selfs   _datfiles   fs   seeks   tells   poss
   _BLOCKSIZEs   nposs   writes   vals   closes   len(   s   selfs   vals   fs   poss   nposs   /usr/lib/python/dumbdbm.pys   _addvalc   sV   \ ] t  |  i d ƒ } ^ | i | ƒ _ | i | ƒ ` | i ƒ  a | | f Sd  S(   Ns   rb+(	   s   _opens   selfs   _datfiles   fs   seeks   poss   writes   vals   close(   s   selfs   poss   vals   fs   /usr/lib/python/dumbdbm.pys   _setvalc   sk   c | \ } } d | | f |  i | <e t |  i d ƒ } f | i d | | | f ƒ g | i	 ƒ  d  S(   Ns   as   %s, (%s, %s)
(
   s   poss   sizs   selfs   _indexs   keys   _opens   _dirfiles   fs   writes   close(   s   selfs   keys    s   poss   sizs   fs   /usr/lib/python/dumbdbm.pys   _addkeyc   si  i j t  | ƒ t  d ƒ j o t  | ƒ j n o k t d ‚ n l |  i i | ƒ o5 m |  i | ƒ \ } } n |  i
 | | | f ƒ nÓ p |  i | \ } } q | t d t } r t | ƒ t d t } s | | j o5 t |  i | | ƒ \ } } u | | f |  i | <n/ w |  i | ƒ \ } } x | | f |  i | <y |  i
 | | | f ƒ d  S(   Ns    s   keys and values must be stringsi   (   s   types   keys   vals	   TypeErrors   selfs   _indexs   has_keys   _addvals   poss   sizs   _addkeys
   _BLOCKSIZEs	   oldblockss   lens	   newblockss   _setval(   s   selfs   keys   vals   poss   sizs	   oldblockss	   newblockss   /usr/lib/python/dumbdbm.pys   __setitem__c   s!   { | |  i | =} |  i ƒ  d  S(   N(   s   selfs   _indexs   keys   _commit(   s   selfs   keys   /usr/lib/python/dumbdbm.pys   __delitem__c   s    € |  i i ƒ  Sd  S(   N(   s   selfs   _indexs   keys(   s   selfs   /usr/lib/python/dumbdbm.pys   keysc   s   ‚ ƒ |  i i | ƒ Sd  S(   N(   s   selfs   _indexs   has_keys   key(   s   selfs   keys   /usr/lib/python/dumbdbm.pys   has_keyc   s   … † t  |  i ƒ Sd  S(   N(   s   lens   selfs   _index(   s   selfs   /usr/lib/python/dumbdbm.pys   __len__c   s-   ˆ ‰ t  |  _ Š t  |  _ |  _ |  _ d  S(   N(   s   Nones   selfs   _indexs   _datfiles   _dirfiles   _bakfile(   s   selfs   /usr/lib/python/dumbdbm.pys   close(   s   __init__s   _updates   _commits   __getitem__s   _addvals   _setvals   _addkeys   __setitem__s   __delitem__s   keyss   has_keys   __len__s   close(    s   /usr/lib/python/dumbdbm.pys	   _Databasec   s     t  |  ƒ Sd  S(   N(   s	   _Databases   file(   s   files   flags   modes   /usr/lib/python/dumbdbm.pys   openN(	   s   __doc__s
   __import__s   _oss   __builtin__s   opens   _opens
   _BLOCKSIZEs	   _Databases   None(    s   /usr/lib/python/dumbdbm.pys   ?