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Commit a513a313 authored by Romain Courteaud's avatar Romain Courteaud
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Revert "ZODB Components: Resetting Portal Type classes was also clearing... 

Revert "ZODB Components: Resetting Portal Type classes was also clearing Interfaces of erp5.component.* modules."

This reverts commit f1f415a3.
parent ec42941c
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Showing with 18 additions and 146 deletions
product/ERP5Type/dynamic/portal_type_class.py
View file @ a513a313
......@@ -476,20 +476,19 @@ def synchronizeDynamicModules(context, force=False):
LOG("ERP5Type.dynamic", 0, "Resetting dynamic classes")
try:
for _, klass in inspect.getmembers(erp5.portal_type,
inspect.isclass):
for class_name, klass in inspect.getmembers(erp5.portal_type,
inspect.isclass):
# Zope Interface is implemented through __implements__,
# __implemented__ (both implementedBy instances) and __provides__
# (ClassProvides instance) attributes set on the class by
# zope.interface.declarations.implementedByFallback.
#
# However both implementedBy and ClassProvides instances keep a
# reference to the class itself, thus creating a circular references.
# reference to the class itself, thus creating a circular references
# preventing erp5.* classes to be GC even when not being actually used
# anywhere anymore after a reset.
for k in klass.mro():
module_name = k.__module__
if (module_name.startswith('erp5.') and
# Components are reset independently of Portal Types classes
not module_name.startswith('erp5.component.')):
if k.__module__.startswith('erp5.'):
for attr in ('__implements__', '__implemented__', '__provides__'):
if k.__dict__.get(attr) is not None:
delattr(k, attr)
......
product/ERP5Type/tests/testDynamicClassGeneration.py
View file @ a513a313
......@@ -2599,20 +2599,6 @@ class DifferentFromReference(Person):
that the newly-defined function on ZODB Component can be called as well as
methods from Person Document
"""
## Create an Interface assigned to the test ZODB Component to check that
## only resetting Portal Type classes do not have any side-effect on
## Interfaces defined on ZODB Components
from zope.interface import Interface
class ITestPortalType(Interface):
"""Anything"""
def foo():
"""Anything"""
from types import ModuleType
interface_module = ModuleType('ITestPortalType')
interface_module.ITestPortalType = ITestPortalType
import sys
sys.modules['ITestPortalType'] = interface_module
self.failIfModuleImportable('TestPortalType')
# Create a new Document Component inheriting from Person Document which
......@@ -2624,27 +2610,17 @@ class DifferentFromReference(Person):
"""
from erp5.component.document.Person import Person
from ITestPortalType import ITestPortalType
import zope.interface
class TestPortalType(Person):
def test42(self):
return 42
zope.interface.implements(ITestPortalType)
def foo(self):
pass
""")
test_component.validate()
self.tic()
# As TestPortalType Document Component has been validated, it should now
# be available
self.assertModuleImportable('TestPortalType', reset=False)
self.assertTrue(ITestPortalType.implementedBy(self._module.TestPortalType.TestPortalType))
self._component_tool.reset(force=True,
reset_portal_type_at_transaction_boundary=True)
self.assertModuleImportable('TestPortalType')
person_type = self.portal.portal_types.Person
person_type_class = person_type.getTypeClass()
......@@ -2660,12 +2636,19 @@ class TestPortalType(Person):
# assigned to a Person
self.failIfHasAttribute(person, 'test42')
self.failIfHasAttribute(self._module, 'TestPortalType')
self.assertFalse(ITestPortalType.providedBy(person))
self.assertFalse(ITestPortalType.implementedBy(person.__class__))
for klass in person.__class__.mro():
self.assertNotEqual(klass.__name__, 'TestPortalType')
def _check():
# Reset Portal Type classes to ghost to make sure that everything is reset
self._component_tool.reset(force=True,
reset_portal_type_at_transaction_boundary=True)
# TestPortalType must be available in type class list
self.assertTrue('TestPortalType' in person_type.getDocumentTypeList())
try:
person_type.setTypeClass('TestPortalType')
self.commit()
self.assertHasAttribute(person, 'test42')
self.assertEqual(person.test42(), 42)
......@@ -2675,21 +2658,6 @@ class TestPortalType(Person):
self.assertTrue(self._module.TestPortalType.TestPortalType in person.__class__.mro())
from erp5.component.document.Person import Person as PersonDocument
self.assertTrue(PersonDocument in person.__class__.mro())
self.assertTrue(ITestPortalType.providedBy(person))
self.assertTrue(ITestPortalType.implementedBy(person.__class__))
# Reset Portal Type classes to ghost to make sure that everything is reset
self._component_tool.reset(force=True,
reset_portal_type_at_transaction_boundary=False)
# TestPortalType must be available in type class list
self.assertTrue('TestPortalType' in person_type.getDocumentTypeList())
try:
person_type.setTypeClass('TestPortalType')
self.commit()
_check()
self.portal.portal_types.resetDynamicDocuments()
_check()
finally:
person_type.setTypeClass('Person')
......@@ -2725,101 +2693,6 @@ class TestWithImport(TestImported):
self.assertModuleImportable('TestWithImport')
self.assertModuleImportable('TestImported')
def testGC(self):
"""
Zope Implements and ClassProvides keep a reference to the class itself,
thus creating a circular reference which can only be garbage collected by
'gc' module (and not by reference counting).
So check that ZODB Components modules are properly garbage collectable
after a reset (in 'gc' terms: considered 'unreachable' but 'collectable'
and could be freed).
"""
from zope.interface import Interface
class ITestGC(Interface):
"""Anything"""
def foo():
"""Anything"""
from types import ModuleType
interface_module = ModuleType('ITestGC')
interface_module.ITestGC = ITestGC
import sys
sys.modules['ITestGC'] = interface_module
self.failIfModuleImportable('TestGC')
test_component = self._newComponent(
'TestGC',
"""from Products.ERP5Type.XMLObject import XMLObject
from ITestGC import ITestGC
import zope.interface
class TestGC(XMLObject):
zope.interface.implements(ITestGC)
def foo(self):
pass
""")
self.tic()
self.failIfModuleImportable('TestGC')
test_component.validate()
self.tic()
import gc
initial_gc_debug_flags = gc.get_debug()
initial_stderr = sys.stderr
try:
gc.disable()
gc.collect()
self.assertModuleImportable('TestGC', reset=False)
class_id = id(self._module.TestGC.TestGC)
Implements_id = id(self._module.TestGC.TestGC.__implemented__)
ClassProvides_id = id(self._module.TestGC.TestGC.__provides__)
self.assertEqual(gc.collect(), 0)
self.assertEqual(gc.garbage, [])
self._component_tool.reset(force=True)
gc.collect()
self.assertEqual(gc.garbage, [])
import sys
from cStringIO import StringIO
import erp5.component
gc.set_debug(
gc.DEBUG_STATS |
gc.DEBUG_UNCOLLECTABLE |
gc.DEBUG_COLLECTABLE |
gc.DEBUG_OBJECTS |
gc.DEBUG_INSTANCES)
stderr = StringIO()
sys.stderr = stderr
# Still not garbage collectable as RefManager still keeps a reference
erp5.component.ref_manager.clear()
# Once deleted, the ZODB Component module must be collectable...
self.assertNotEqual(gc.collect(), 0)
finally:
gc.set_debug(initial_gc_debug_flags)
gc.enable()
sys.stderr = initial_stderr
# And make sure that it has really be collected thanks to DEBUG_COLLECTABLE
self.assertEqual(gc.garbage, [])
stderr.seek(0)
found_line_list = []
for line in stderr:
if ('0x%x>' % class_id in line or
'0x%x>' % Implements_id in line or
'0x%x>' % ClassProvides_id in line):
found_line_list.append(line)
self.assertEqual(
['gc: collectable <ClassProvides 0x%x>\n' % ClassProvides_id,
'gc: collectable <ExtensionClass.ExtensionClass 0x%x>\n' % class_id,
'gc: collectable <Implements 0x%x>\n' % Implements_id],
sorted(found_line_list))
from Products.ERP5Type.Core.TestComponent import TestComponent
class TestZodbTestComponent(_TestZodbComponent):
......
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