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Issue #22054: Add os.get_blocking() and os.set_blocking() functions to get and

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set the blocking mode of a file descriptor (False if the O_NONBLOCK flag is
set, True otherwise). These functions are not available on Windows.
This commit is contained in:
Victor Stinner 2014-07-29 22:32:47 +02:00
parent 6aa4269ed2
commit 1db9e7bb19
13 changed files with 198 additions and 58 deletions
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26
Lib/test/test_os.py
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@ -1376,6 +1376,16 @@ class TestInvalidFD(unittest.TestCase):
def test_writev(self):
self.check(os.writev, [b'abc'])
def test_inheritable(self):
self.check(os.get_inheritable)
self.check(os.set_inheritable, True)
@unittest.skipUnless(hasattr(os, 'get_blocking'),
'needs os.get_blocking() and os.set_blocking()')
def test_blocking(self):
self.check(os.get_blocking)
self.check(os.set_blocking, True)
class LinkTests(unittest.TestCase):
def setUp(self):
@ -2591,6 +2601,21 @@ class FDInheritanceTests(unittest.TestCase):
self.assertEqual(os.get_inheritable(slave_fd), False)
@unittest.skipUnless(hasattr(os, 'get_blocking'),
'needs os.get_blocking() and os.set_blocking()')
class BlockingTests(unittest.TestCase):
def test_blocking(self):
fd = os.open(__file__, os.O_RDONLY)
self.addCleanup(os.close, fd)
self.assertEqual(os.get_blocking(fd), True)
os.set_blocking(fd, False)
self.assertEqual(os.get_blocking(fd), False)
os.set_blocking(fd, True)
self.assertEqual(os.get_blocking(fd), True)
@support.reap_threads
def test_main():
support.run_unittest(
@ -2626,6 +2651,7 @@ def test_main():
CPUCountTests,
FDInheritanceTests,
Win32JunctionTests,
BlockingTests,
)
if __name__ == "__main__":