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Made the reload mechanism fully asynchronous. Work on improving cache operations.

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This commit is contained in:
Griatch 2011-03-20 13:24:07 +00:00
parent 85e61bbf2d
commit e965830735
6 changed files with 113 additions and 59 deletions
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13
src/utils/idmapper/base.py
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@ -25,6 +25,9 @@ class SharedMemoryModelBase(ModelBase):
"""
def new_instance():
return super(SharedMemoryModelBase, cls).__call__(*args, **kwargs)
#if _get_full_cache:
# return cls.__instance_cache__.values()
instance_key = cls._get_cache_key(args, kwargs)
# depending on the arguments, we might not be able to infer the PK, so in that case we create a new instance
@ -39,6 +42,7 @@ class SharedMemoryModelBase(ModelBase):
return cached_instance
def _prepare(cls):
# this is the core cache
cls.__instance_cache__ = {} #WeakValueDictionary()
super(SharedMemoryModelBase, cls)._prepare()
@ -99,10 +103,15 @@ class SharedMemoryModel(Model):
cls.__instance_cache__[instance._get_pk_val()] = instance
#key = "%s-%s" % (cls, instance.pk)
#TCACHE[key] = instance
#print "cached: %s (%s: %s) (total cached: %s)" % (instance, cls.__name__, len(cls.__instance_cache__), len(TCACHE))
#print "cached: %s (%s: %s) (total cached: %s)" % (instance, cls.__name__, len(cls.__instance_cache__), len(TCACHE))
cache_instance = classmethod(cache_instance)
def get_all_cached_instances(cls):
"return the objects so far cached by idmapper for this class."
return cls.__instance_cache__.values()
get_all_cached_instances = classmethod(get_all_cached_instances)
def _flush_cached_by_key(cls, key):
del cls.__instance_cache__[key]
_flush_cached_by_key = classmethod(_flush_cached_by_key)