Commit 2cc71565 authored by Hynek Schlawack's avatar Hynek Schlawack

#4841: Fix FileIO constructor to honor closefd when called repeatedly

Patch by Victor Stinner.
parent 1a01ebc4
......@@ -634,6 +634,19 @@ class IOTest(unittest.TestCase):
for obj in test:
self.assertTrue(hasattr(obj, "__dict__"))
def test_fileio_closefd(self):
# Issue #4841
with self.open(__file__, 'rb') as f1, \
self.open(__file__, 'rb') as f2:
fileio = self.FileIO(f1.fileno(), closefd=False)
# .__init__() must not close f1
fileio.__init__(f2.fileno(), closefd=False)
f1.readline()
# .close() must not close f2
fileio.close()
f2.readline()
class CIOTest(IOTest):
def test_IOBase_finalize(self):
......
......@@ -227,9 +227,13 @@ fileio_init(PyObject *oself, PyObject *args, PyObject *kwds)
assert(PyFileIO_Check(oself));
if (self->fd >= 0) {
/* Have to close the existing file first. */
if (internal_close(self) < 0)
return -1;
if (self->closefd) {
/* Have to close the existing file first. */
if (internal_close(self) < 0)
return -1;
}
else
self->fd = -1;
}
if (!PyArg_ParseTupleAndKeywords(args, kwds, "O|si:fileio",
......
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