forked from ScoDoc/ScoDoc
66 lines
2.1 KiB
Python
66 lines
2.1 KiB
Python
|
# -*- mode: python -*-
|
||
|
|
# -*- coding: utf-8 -*-
|
||
|
|
|
||
|
|
##############################################################################
|
||
|
|
#
|
||
|
|
# Gestion scolarite IUT
|
||
|
|
#
|
||
|
|
# Copyright (c) 1999 - 2020 Emmanuel Viennet. All rights reserved.
|
||
|
|
#
|
||
|
|
# This program is free software; you can redistribute it and/or modify
|
||
|
|
# it under the terms of the GNU General Public License as published by
|
||
|
|
# the Free Software Foundation; either version 2 of the License, or
|
||
|
|
# (at your option) any later version.
|
||
|
|
#
|
||
|
|
# This program is distributed in the hope that it will be useful,
|
||
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
|
|
# GNU General Public License for more details.
|
||
|
|
#
|
||
|
|
# You should have received a copy of the GNU General Public License
|
||
|
|
# along with this program; if not, write to the Free Software
|
||
|
|
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||
|
|
#
|
||
|
|
# Emmanuel Viennet emmanuel.viennet@viennet.net
|
||
|
|
#
|
||
|
|
##############################################################################
|
||
|
|
|
||
|
|
"""Gestion rudimentaire de cache pour Notes
|
||
|
|
|
||
|
|
|
||
|
|
NOTA: inutilisable dans une instance Zope (can't pickle functions)
|
||
|
|
"""
|
||
|
|
|
||
|
|
from notes_log import log
|
||
|
|
|
||
|
|
|
||
|
|
class CacheFunc:
|
||
|
|
"""gestion rudimentaire de cache pour une fonction
|
||
|
|
func doit etre sans effet de bord, et sans arguments nommés
|
||
|
|
"""
|
||
|
|
|
||
|
|
def __init__(self, func):
|
||
|
|
log("new CacheFunc for %s" % str(func))
|
||
|
|
self.func = func
|
||
|
|
self.cache = {} # { arguments : function result }
|
||
|
|
|
||
|
|
def __call__(self, *args):
|
||
|
|
if self.cache.has_key(args):
|
||
|
|
# log('cache hit %s' % str(args))
|
||
|
|
return self.cache[args]
|
||
|
|
else:
|
||
|
|
val = self.func(*args)
|
||
|
|
self.cache[args] = val
|
||
|
|
log("caching %s(%s)" % (str(self.func), str(args)))
|
||
|
|
return val
|
||
|
|
|
||
|
|
def inval_cache_entry(self, *args): # >
|
||
|
|
"expire cache for these args"
|
||
|
|
log("inval_cache_entry %s(%s)" % (str(self.func), str(args))) # >
|
||
|
|
del self.cache[args]
|
||
|
|
|
||
|
|
def inval_cache(self): # >
|
||
|
|
"clear whole cache"
|
||
|
|
log("inval_cache %s(%s)" % (str(self.func), str(args))) # >
|
||
|
|
self.cache = {}
|