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Check the GIL in PyObject_Malloc()

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Issue #26558: The debug hook of PyObject_Malloc() now checks that the GIL is
held when the function is called.
This commit is contained in:
Victor Stinner 2016-03-14 22:26:53 +01:00
parent 8a1be61849
commit c4aec3628b
6 changed files with 119 additions and 34 deletions
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30
Lib/test/test_capi.py
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@ -441,6 +441,7 @@ class EmbeddingTests(unittest.TestCase):
self.maxDiff = None
self.assertEqual(out.strip(), expected_output)
class SkipitemTest(unittest.TestCase):
def test_skipitem(self):
@ -558,14 +559,15 @@ class Test_testcapi(unittest.TestCase):
test()
class MallocTests(unittest.TestCase):
ENV = 'debug'
class PyMemDebugTests(unittest.TestCase):
PYTHONMALLOC = 'debug'
# '0x04c06e0' or '04C06E0'
PTR_REGEX = r'(?:0x)?[0-9a-fA-F]+'
def check(self, code):
with support.SuppressCrashReport():
out = assert_python_failure('-c', code, PYTHONMALLOC=self.ENV)
out = assert_python_failure('-c', code,
PYTHONMALLOC=self.PYTHONMALLOC)
stderr = out.err
return stderr.decode('ascii', 'replace')
@ -598,20 +600,30 @@ class MallocTests(unittest.TestCase):
regex = regex.format(ptr=self.PTR_REGEX)
self.assertRegex(out, regex)
def test_pyobject_malloc_without_gil(self):
# Calling PyObject_Malloc() without holding the GIL must raise an
# error in debug mode.
code = 'import _testcapi; _testcapi.pyobject_malloc_without_gil()'
out = self.check(code)
expected = ('Fatal Python error: Python memory allocator called '
'without holding the GIL')
self.assertIn(expected, out)
class MallocDebugTests(MallocTests):
ENV = 'malloc_debug'
class PyMemMallocDebugTests(PyMemDebugTests):
PYTHONMALLOC = 'malloc_debug'
@unittest.skipUnless(sysconfig.get_config_var('WITH_PYMALLOC') == 1,
'need pymalloc')
class PymallocDebugTests(MallocTests):
ENV = 'pymalloc_debug'
class PyMemPymallocDebugTests(PyMemDebugTests):
PYTHONMALLOC = 'pymalloc_debug'
@unittest.skipUnless(Py_DEBUG, 'need Py_DEBUG')
class DefaultMallocDebugTests(MallocTests):
ENV = ''
class PyMemDefaultTests(PyMemDebugTests):
# test default allocator of Python compiled in debug mode
PYTHONMALLOC = ''
if __name__ == "__main__":