N
ηωO5c       sS   d  Z  e d  Z k Z e i Z d Z e Z d f  d     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      sw   d   Z  d   Z d   Z d   Z d   Z d   Z d   Z d   Z d	   Z d
   Z	 d   Z
 d   Z d   Z RS(   Nc    s}   | d |  _ | d |  _ | d |  _ y t |  i d  } Wn% t j
 o t |  i d  } n X| i   |  i	   d  S(   Ns   .dirs   .dats   .baks   rs   w(
   s   files   selfs   _dirfiles   _datfiles   _bakfiles   _opens   fs   IOErrors   closes   _update(   s   selfs   files   fs1   /var/tmp/python-root/usr/lib/python1.5/dumbdbm.pys   __init__# s    
c    s   h  |  _ y t |  i  } Wn t j
 o n_ XxP d oH | i   } | o Pn t |  \ } \ } } | | f |  i | <q5 W| i   d  S(   Ni   (   s   selfs   _indexs   _opens   _dirfiles   fs   IOErrors   readlines   lines   evals   keys   poss   sizs   close(   s   selfs   fs   lines   keys   poss   sizs1   /var/tmp/python-root/usr/lib/python1.5/dumbdbm.pys   _update/ s    	  c    sΕ   y t  i |  i  Wn t  i j
 o n Xy t  i |  i |  i  Wn t  i j
 o n Xt |  i d  } xB |  i	 i
   d r/ \ } \ } } | i d | | | f  q W| i   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   sizs1   /var/tmp/python-root/usr/lib/python1.5/dumbdbm.pys   _commit= s         !c    sS   |  i | \ } } t |  i d  } | i |  | i	 |  } | i   | Sd  S(   Ns   rb(   s   selfs   _indexs   keys   poss   sizs   _opens   _datfiles   fs   seeks   reads   dats   close(   s   selfs   keys   poss   sizs   fs   dats1   /var/tmp/python-root/usr/lib/python1.5/dumbdbm.pys   __getitem__G s    
c    s   t  |  i d  } | i d d  | i   } | t d t t } | i	 d | |  | } | i	 |  | i   | t |  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   nposs1   /var/tmp/python-root/usr/lib/python1.5/dumbdbm.pys   _addvalO s    
c    sJ   t  |  i d  } | i |  | i |  | i   | t	 |  f Sd  S(   Ns   rb+(
   s   _opens   selfs   _datfiles   fs   seeks   poss   writes   vals   closes   len(   s   selfs   poss   vals   fs1   /var/tmp/python-root/usr/lib/python1.5/dumbdbm.pys   _setval^ s
    
c    s\   | \ } } | | f |  i | <t |  i d  } | i d | | | f  | i	   d  S(   Ns   as   %s, (%s, %s)
(
   s   poss   sizs   selfs   _indexs   keys   _opens   _dirfiles   fs   writes   close(   s   selfs   keys   .4s   poss   sizs   fs1   /var/tmp/python-root/usr/lib/python1.5/dumbdbm.pys   _addkeye s   c    s<  t  |  t  d  j o t  |  j n o t d  n |  i i |  o/ |  i |  \ } } |  i
 | | | f  nΈ |  i | \ } } | t d t } t |  t d t } | | j o/ |  i | |  \ } } | | f |  i | <n) |  i |  \ } } | | f |  i | <|  i
 | | | f  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	   newblockss1   /var/tmp/python-root/usr/lib/python1.5/dumbdbm.pys   __setitem__k s    1c    s   |  i | =|  i   d  S(   N(   s   selfs   _indexs   keys   _commit(   s   selfs   keys1   /var/tmp/python-root/usr/lib/python1.5/dumbdbm.pys   __delitem__} s    
c    s   |  i i   Sd  S(   N(   s   selfs   _indexs   keys(   s   selfs1   /var/tmp/python-root/usr/lib/python1.5/dumbdbm.pys   keys s    c    s   |  i i |  Sd  S(   N(   s   selfs   _indexs   has_keys   key(   s   selfs   keys1   /var/tmp/python-root/usr/lib/python1.5/dumbdbm.pys   has_key s    c    s   t  |  i  Sd  S(   N(   s   lens   selfs   _index(   s   selfs1   /var/tmp/python-root/usr/lib/python1.5/dumbdbm.pys   __len__ s    c    s$   t  |  _ t  |  _ |  _ |  _ d  S(   N(   s   Nones   selfs   _indexs   _datfiles   _dirfiles   _bakfile(   s   selfs1   /var/tmp/python-root/usr/lib/python1.5/dumbdbm.pys   close s    	(   s   __init__s   _updates   _commits   __getitem__s   _addvals   _setvals   _addkeys   __setitem__s   __delitem__s   keyss   has_keys   __len__s   close(    s1   /var/tmp/python-root/usr/lib/python1.5/dumbdbm.pys	   _Database! s    			
									c    s   t  |   Sd  S(   N(   s	   _Databases   file(   s   files   flags   modes1   /var/tmp/python-root/usr/lib/python1.5/dumbdbm.pys   open s    N(   s   __doc__s
   __import__s   _oss   __builtin__s   opens   _opens
   _BLOCKSIZEs   IOErrors   errors	   _Databases   None(    s1   /var/tmp/python-root/usr/lib/python1.5/dumbdbm.pys   ? s   	n