Infra/tiramisu
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huge use of weakrefs to remove memoryleaks due to circular references

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This commit is contained in:
Emmanuel Garette
2013-08-27 11:39:32 +02:00
parent 36def6533f
commit acd27fb56c
5 changed files with 73 additions and 65 deletions
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13
tiramisu/setting.py
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@ -22,6 +22,7 @@
# ____________________________________________________________
from time import time
from copy import copy
import weakref
from tiramisu.error import (RequirementError, PropertiesOptionError,
ConstError, ConfigError)
from tiramisu.i18n import _
@ -253,7 +254,7 @@ class Settings(object):
"""
# generic owner
self._owner = owners.user
self.context = context
self.context = weakref.ref(context)
import_lib = 'tiramisu.storage.{0}.setting'.format(storage.storage)
self._p_ = __import__(import_lib, globals(), locals(), ['Settings'],
-1).Settings(storage)
@ -287,7 +288,7 @@ class Settings(object):
if opt is not None and _path is None:
_path = self._get_opt_path(opt)
self._p_.reset_properties(_path)
self.context.cfgimpl_reset_cache()
self.context().cfgimpl_reset_cache()
def _getproperties(self, opt=None, path=None, is_apply_req=True):
if opt is None:
@ -337,7 +338,7 @@ class Settings(object):
self._p_.reset_properties(path)
else:
self._p_.setproperties(path, properties)
self.context.cfgimpl_reset_cache()
self.context().cfgimpl_reset_cache()
#____________________________________________________________
def validate_properties(self, opt_or_descr, is_descr, is_write, path,
@ -377,7 +378,7 @@ class Settings(object):
properties -= frozenset(('mandatory', 'frozen'))
else:
if 'mandatory' in properties and \
not self.context.cfgimpl_get_values()._isempty(
not self.context().cfgimpl_get_values()._isempty(
opt_or_descr, value):
properties.remove('mandatory')
if is_write and 'everything_frozen' in self_properties:
@ -494,7 +495,7 @@ class Settings(object):
" '{0}' with requirement on: "
"'{1}'").format(path, reqpath))
try:
value = self.context._getattr(reqpath,
value = self.context()._getattr(reqpath,
force_permissive=True)
except PropertiesOptionError, err:
if not transitive:
@ -519,4 +520,4 @@ class Settings(object):
return calc_properties
def _get_opt_path(self, opt):
return self.context.cfgimpl_get_description().impl_get_path_by_opt(opt)
return self.context().cfgimpl_get_description().impl_get_path_by_opt(opt)