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Issue #25582: Fixed 100 MB memory leak in test_ctypes.

This commit is contained in:
Serhiy Storchaka 2015-11-09 22:31:10 +02:00
parent ba270147e4
commit b63902a748
2 changed files with 15 additions and 1 deletions
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12
Lib/ctypes/test/test_pointers.py
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@ -192,9 +192,19 @@ class PointersTestCase(unittest.TestCase):
LargeNamedType = type('T' * 2 ** 25, (Structure,), {}) LargeNamedType = type('T' * 2 ** 25, (Structure,), {})
self.assertTrue(POINTER(LargeNamedType)) self.assertTrue(POINTER(LargeNamedType))
# to not leak references, we must clean _pointer_type_cache
from ctypes import _pointer_type_cache
del _pointer_type_cache[LargeNamedType]
def test_pointer_type_str_name(self): def test_pointer_type_str_name(self):
large_string = 'T' * 2 ** 25 large_string = 'T' * 2 ** 25
self.assertTrue(POINTER(large_string)) P = POINTER(large_string)
self.assertTrue(P)
# to not leak references, we must clean _pointer_type_cache
from ctypes import _pointer_type_cache
del _pointer_type_cache[id(P)]
if __name__ == '__main__': if __name__ == '__main__':
unittest.main() unittest.main()

4
Lib/ctypes/test/test_win32.py
View File

@ -135,5 +135,9 @@ class Structures(unittest.TestCase):
self.assertEqual(ret.top, top.value) self.assertEqual(ret.top, top.value)
self.assertEqual(ret.bottom, bottom.value) self.assertEqual(ret.bottom, bottom.value)
# to not leak references, we must clean _pointer_type_cache
from ctypes import _pointer_type_cache
del _pointer_type_cache[RECT]
if __name__ == '__main__': if __name__ == '__main__':
unittest.main() unittest.main()