Ticket #6086: rm_simple.diff

File rm_simple.diff, 2.4 KB (added by pbx, 8 years ago)

Sorry - original patch didn't include removal of simple.py

  • django/core/cache/backends/simple.py

     
    1 "Single-process in-memory cache backend."
    2 
    3 from django.core.cache.backends.base import BaseCache
    4 import time
    5 
    6 class CacheClass(BaseCache):
    7     def __init__(self, host, params):
    8         BaseCache.__init__(self, params)
    9         self._cache = {}
    10         self._expire_info = {}
    11 
    12         max_entries = params.get('max_entries', 300)
    13         try:
    14             self._max_entries = int(max_entries)
    15         except (ValueError, TypeError):
    16             self._max_entries = 300
    17 
    18         cull_frequency = params.get('cull_frequency', 3)
    19         try:
    20             self._cull_frequency = int(cull_frequency)
    21         except (ValueError, TypeError):
    22             self._cull_frequency = 3
    23 
    24     def add(self, key, value, timeout=None):
    25         if len(self._cache) >= self._max_entries:
    26             self._cull()
    27         if timeout is None:
    28             timeout = self.default_timeout
    29         if key not in self._cache.keys():
    30             self._cache[key] = value
    31             self._expire_info[key] = time.time() + timeout
    32 
    33     def get(self, key, default=None):
    34         now = time.time()
    35         exp = self._expire_info.get(key)
    36         if exp is None:
    37             return default
    38         elif exp < now:
    39             del self._cache[key]
    40             del self._expire_info[key]
    41             return default
    42         else:
    43             return self._cache[key]
    44 
    45     def set(self, key, value, timeout=None):
    46         if len(self._cache) >= self._max_entries:
    47             self._cull()
    48         if timeout is None:
    49             timeout = self.default_timeout
    50         self._cache[key] = value
    51         self._expire_info[key] = time.time() + timeout
    52 
    53     def delete(self, key):
    54         try:
    55             del self._cache[key]
    56         except KeyError:
    57             pass
    58         try:
    59             del self._expire_info[key]
    60         except KeyError:
    61             pass
    62 
    63     def has_key(self, key):
    64         return key in self._cache
    65 
    66     def _cull(self):
    67         if self._cull_frequency == 0:
    68             self._cache.clear()
    69             self._expire_info.clear()
    70         else:
    71             doomed = [k for (i, k) in enumerate(self._cache) if i % self._cull_frequency == 0]
    72             for k in doomed:
    73                 self.delete(k)
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