Gecko [ edgpens.lpkmn.gov.my ]

Name	Size	Permission
__pycache__	[ DIR ]	drwxrwxrwx
__init__.py	461 B	-rw-rw-rw-
__main__.py	72 B	-rw-rw-rw-
test_anon.py	2.55 KB	-rw-rw-rw-
test_array_in_pointer.py	1.76 KB	-rw-rw-rw-
test_arrays.py	7.56 KB	-rw-rw-rw-
test_as_parameter.py	6.98 KB	-rw-rw-rw-
test_bitfields.py	10.4 KB	-rw-rw-rw-
test_buffers.py	2.62 KB	-rw-rw-rw-
test_bytes.py	2 KB	-rw-rw-rw-
test_byteswap.py	11.45 KB	-rw-rw-rw-
test_callbacks.py	10.64 KB	-rw-rw-rw-
test_cast.py	3.74 KB	-rw-rw-rw-
test_cfuncs.py	7.71 KB	-rw-rw-rw-
test_checkretval.py	1004 B	-rw-rw-rw-
test_delattr.py	554 B	-rw-rw-rw-
test_errno.py	2.19 KB	-rw-rw-rw-
test_find.py	4.48 KB	-rw-rw-rw-
test_frombuffer.py	5.23 KB	-rw-rw-rw-
test_funcptr.py	4.06 KB	-rw-rw-rw-
test_functions.py	12.59 KB	-rw-rw-rw-
test_incomplete.py	1.04 KB	-rw-rw-rw-
test_init.py	1.05 KB	-rw-rw-rw-
test_internals.py	2.67 KB	-rw-rw-rw-
test_keeprefs.py	4.11 KB	-rw-rw-rw-
test_libc.py	1.01 KB	-rw-rw-rw-
test_loading.py	7.15 KB	-rw-rw-rw-
test_macholib.py	2.14 KB	-rw-rw-rw-
test_memfunctions.py	3.29 KB	-rw-rw-rw-
test_numbers.py	9.54 KB	-rw-rw-rw-
test_objects.py	1.7 KB	-rw-rw-rw-
test_parameters.py	9.59 KB	-rw-rw-rw-
test_pep3118.py	8.54 KB	-rw-rw-rw-
test_pickling.py	2.25 KB	-rw-rw-rw-
test_pointers.py	7.29 KB	-rw-rw-rw-
test_prototypes.py	6.9 KB	-rw-rw-rw-
test_python_api.py	2.79 KB	-rw-rw-rw-
test_random_things.py	2.84 KB	-rw-rw-rw-
test_refcounts.py	2.61 KB	-rw-rw-rw-
test_repr.py	871 B	-rw-rw-rw-
test_returnfuncptrs.py	2.89 KB	-rw-rw-rw-
test_simplesubclasses.py	1.31 KB	-rw-rw-rw-
test_sizes.py	837 B	-rw-rw-rw-
test_slicing.py	6.05 KB	-rw-rw-rw-
test_stringptr.py	2.61 KB	-rw-rw-rw-
test_strings.py	7.36 KB	-rw-rw-rw-
test_struct_fields.py	2.64 KB	-rw-rw-rw-
test_structures.py	27.58 KB	-rw-rw-rw-
test_unaligned_structures.py	1.16 KB	-rw-rw-rw-
test_unicode.py	2.01 KB	-rw-rw-rw-
test_values.py	3.88 KB	-rw-rw-rw-
test_varsize_struct.py	1.85 KB	-rw-rw-rw-
test_win32.py	5.04 KB	-rw-rw-rw-
test_wintypes.py	1.41 KB	-rw-rw-rw-

Name

Size

Permission

Action

__pycache__

[ DIR ]

drwxrwxrwx

__init__.py

461 B

-rw-rw-rw-

__main__.py

72 B

-rw-rw-rw-

test_anon.py

2.55 KB

-rw-rw-rw-

test_array_in_pointer.py

1.76 KB

-rw-rw-rw-

test_arrays.py

7.56 KB

-rw-rw-rw-

test_as_parameter.py

6.98 KB

-rw-rw-rw-

test_bitfields.py

10.4 KB

-rw-rw-rw-

test_buffers.py

2.62 KB

-rw-rw-rw-

test_bytes.py

2 KB

-rw-rw-rw-

test_byteswap.py

11.45 KB

-rw-rw-rw-

test_callbacks.py

10.64 KB

-rw-rw-rw-

test_cast.py

3.74 KB

-rw-rw-rw-

test_cfuncs.py

7.71 KB

-rw-rw-rw-

test_checkretval.py

1004 B

-rw-rw-rw-

test_delattr.py

554 B

-rw-rw-rw-

test_errno.py

2.19 KB

-rw-rw-rw-

test_find.py

4.48 KB

-rw-rw-rw-

test_frombuffer.py

5.23 KB

-rw-rw-rw-

test_funcptr.py

4.06 KB

-rw-rw-rw-

test_functions.py

12.59 KB

-rw-rw-rw-

test_incomplete.py

1.04 KB

-rw-rw-rw-

test_init.py

1.05 KB

-rw-rw-rw-

test_internals.py

2.67 KB

-rw-rw-rw-

test_keeprefs.py

4.11 KB

-rw-rw-rw-

test_libc.py

1.01 KB

-rw-rw-rw-

test_loading.py

7.15 KB

-rw-rw-rw-

test_macholib.py

2.14 KB

-rw-rw-rw-

test_memfunctions.py

3.29 KB

-rw-rw-rw-

test_numbers.py

9.54 KB

-rw-rw-rw-

test_objects.py

1.7 KB

-rw-rw-rw-

test_parameters.py

9.59 KB

-rw-rw-rw-

test_pep3118.py

8.54 KB

-rw-rw-rw-

test_pickling.py

2.25 KB

-rw-rw-rw-

test_pointers.py

7.29 KB

-rw-rw-rw-

test_prototypes.py

6.9 KB

-rw-rw-rw-

test_python_api.py

2.79 KB

-rw-rw-rw-

test_random_things.py

2.84 KB

-rw-rw-rw-

test_refcounts.py

2.61 KB

-rw-rw-rw-

test_repr.py

871 B

-rw-rw-rw-

test_returnfuncptrs.py

2.89 KB

-rw-rw-rw-

test_simplesubclasses.py

1.31 KB

-rw-rw-rw-

test_sizes.py

837 B

-rw-rw-rw-

test_slicing.py

6.05 KB

-rw-rw-rw-

test_stringptr.py

2.61 KB

-rw-rw-rw-

test_strings.py

7.36 KB

-rw-rw-rw-

test_struct_fields.py

2.64 KB

-rw-rw-rw-

test_structures.py

27.58 KB

-rw-rw-rw-

test_unaligned_structures.py

1.16 KB

-rw-rw-rw-

test_unicode.py

2.01 KB

-rw-rw-rw-

test_values.py

3.88 KB

-rw-rw-rw-

test_varsize_struct.py

1.85 KB

-rw-rw-rw-

test_win32.py

5.04 KB

-rw-rw-rw-

test_wintypes.py

1.41 KB

-rw-rw-rw-

Code Editor : test_refcounts.py

import unittest
from test import support
import ctypes
import gc

MyCallback = ctypes.CFUNCTYPE(ctypes.c_int, ctypes.c_int)
OtherCallback = ctypes.CFUNCTYPE(ctypes.c_int, ctypes.c_int, ctypes.c_ulonglong)

import _ctypes_test
dll = ctypes.CDLL(_ctypes_test.__file__)

class RefcountTestCase(unittest.TestCase):

@support.refcount_test
    def test_1(self):
        from sys import getrefcount as grc

f = dll._testfunc_callback_i_if
        f.restype = ctypes.c_int
        f.argtypes = [ctypes.c_int, MyCallback]

def callback(value):
            #print "called back with", value
            return value

self.assertEqual(grc(callback), 2)
        cb = MyCallback(callback)

self.assertGreater(grc(callback), 2)
        result = f(-10, cb)
        self.assertEqual(result, -18)
        cb = None

gc.collect()

self.assertEqual(grc(callback), 2)

@support.refcount_test
    def test_refcount(self):
        from sys import getrefcount as grc
        def func(*args):
            pass
        # this is the standard refcount for func
        self.assertEqual(grc(func), 2)

# the CFuncPtr instance holds at least one refcount on func:
        f = OtherCallback(func)
        self.assertGreater(grc(func), 2)

# and may release it again
        del f
        self.assertGreaterEqual(grc(func), 2)

# but now it must be gone
        gc.collect()
        self.assertEqual(grc(func), 2)

class X(ctypes.Structure):
            _fields_ = [("a", OtherCallback)]
        x = X()
        x.a = OtherCallback(func)

# the CFuncPtr instance holds at least one refcount on func:
        self.assertGreater(grc(func), 2)

# and may release it again
        del x
        self.assertGreaterEqual(grc(func), 2)

# and now it must be gone again
        gc.collect()
        self.assertEqual(grc(func), 2)

f = OtherCallback(func)

# the CFuncPtr instance holds at least one refcount on func:
        self.assertGreater(grc(func), 2)

# create a cycle
        f.cycle = f

del f
        gc.collect()
        self.assertEqual(grc(func), 2)

class AnotherLeak(unittest.TestCase):
    def test_callback(self):
        import sys

proto = ctypes.CFUNCTYPE(ctypes.c_int, ctypes.c_int, ctypes.c_int)
        def func(a, b):
            return a * b * 2
        f = proto(func)

a = sys.getrefcount(ctypes.c_int)
        f(1, 2)
        self.assertEqual(sys.getrefcount(ctypes.c_int), a)

if __name__ == '__main__':
    unittest.main()

${this.title}

Code Editor : test_refcounts.py