def test_events_mask_overflow_c_limits(self):
from _testcapi import USHRT_MAX
pollster = select.devpoll()
w, r = os.pipe()
pollster.register(w)
self.assertRaises(OverflowError, pollster.register, 0, USHRT_MAX + 1)
self.assertRaises(OverflowError, pollster.modify, 1, USHRT_MAX + 1)
def test_disallow_instantiation(self):
tp = type(select.poll())
self.assertRaises(TypeError, tp)
if hasattr(select, 'devpoll'):
tp = type(select.devpoll())
self.assertRaises(TypeError, tp)
def test_events_mask_overflow_c_limits(self):
from _testcapi import USHRT_MAX
pollster = select.devpoll()
w, r = os.pipe()
pollster.register(w)
# Issue #17919
self.assertRaises(OverflowError, pollster.register, 0, USHRT_MAX + 1)
self.assertRaises(OverflowError, pollster.modify, 1, USHRT_MAX + 1)
def test_events_mask_overflow(self):
pollster = select.devpoll()
w, r = os.pipe()
pollster.register(w)
self.assertRaises(OverflowError, pollster.register, 0, -1)
self.assertRaises(OverflowError, pollster.register, 0, 1 << 64)
self.assertRaises(OverflowError, pollster.modify, 1, -1)
self.assertRaises(OverflowError, pollster.modify, 1, 1 << 64)
def test_events_mask_overflow(self):
pollster = select.devpoll()
w, r = os.pipe()
pollster.register(w)
# Issue #17919
self.assertRaises(OverflowError, pollster.register, 0, -1)
self.assertRaises(OverflowError, pollster.register, 0, USHRT_MAX + 1)
self.assertRaises(OverflowError, pollster.modify, 1, -1)
self.assertRaises(OverflowError, pollster.modify, 1, USHRT_MAX + 1)
def test_devpoll(self):
poller = select.devpoll()
self.addCleanup(poller.close)
t0 = time.monotonic()
poller.poll(self.sleep_time * 1e3)
dt = time.monotonic() - t0
self.stop_alarm()
self.assertGreaterEqual(dt, self.sleep_time)
def test_devpoll(self):
poller = select.devpoll()
self.addCleanup(poller.close)
t0 = time.monotonic()
poller.poll(self.sleep_time * 1e3)
dt = time.monotonic() - t0
self.stop_alarm()
self.assertGreaterEqual(dt, self.sleep_time)
def test_events_mask_overflow(self):
pollster = select.devpoll()
w, r = os.pipe()
pollster.register(w)
# Issue #17919
self.assertRaises(OverflowError, pollster.register, 0, -1)
self.assertRaises(OverflowError, pollster.register, 0, USHRT_MAX + 1)
self.assertRaises(OverflowError, pollster.modify, 1, -1)
self.assertRaises(OverflowError, pollster.modify, 1, USHRT_MAX + 1)
def test_timeout_overflow(self):
pollster = select.devpoll()
w, r = os.pipe()
pollster.register(w)
pollster.poll(-1)
self.assertRaises(OverflowError, pollster.poll, -2)
self.assertRaises(OverflowError, pollster.poll, -1 << 31)
self.assertRaises(OverflowError, pollster.poll, -1 << 64)
pollster.poll(0)
pollster.poll(1)
pollster.poll(1 << 30)
self.assertRaises(OverflowError, pollster.poll, 1 << 31)
self.assertRaises(OverflowError, pollster.poll, 1 << 63)
self.assertRaises(OverflowError, pollster.poll, 1 << 64)
def test_devpoll1(self):
# Basic functional test of poll object
# Create a bunch of pipe and test that poll works with them.
p = select.devpoll()
NUM_PIPES = 12
MSG = b" This is a test."
MSG_LEN = len(MSG)
readers = []
writers = []
r2w = {}
w2r = {}
for i in range(NUM_PIPES):
rd, wr = os.pipe()
p.register(rd)
p.modify(rd, select.POLLIN)
p.register(wr, select.POLLOUT)
readers.append(rd)
writers.append(wr)
r2w[rd] = wr
w2r[wr] = rd
bufs = []
while writers:
ready = p.poll()
ready_writers = find_ready_matching(ready, select.POLLOUT)
if not ready_writers:
self.fail("no pipes ready for writing")
wr = random.choice(ready_writers)
os.write(wr, MSG)
ready = p.poll()
ready_readers = find_ready_matching(ready, select.POLLIN)
if not ready_readers:
self.fail("no pipes ready for reading")
self.assertEqual([w2r[wr]], ready_readers)
rd = ready_readers[0]
buf = os.read(rd, MSG_LEN)
self.assertEqual(len(buf), MSG_LEN)
bufs.append(buf)
os.close(r2w[rd])
os.close(rd)
p.unregister(r2w[rd])
p.unregister(rd)
writers.remove(r2w[rd])
self.assertEqual(bufs, [MSG] * NUM_PIPES)
def test_devpoll1(self):
# Basic functional test of poll object
# Create a bunch of pipe and test that poll works with them.
p = select.devpoll()
NUM_PIPES = 12
MSG = b" This is a test."
MSG_LEN = len(MSG)
readers = []
writers = []
r2w = {}
w2r = {}
for i in range(NUM_PIPES):
rd, wr = os.pipe()
p.register(rd)
p.modify(rd, select.POLLIN)
p.register(wr, select.POLLOUT)
readers.append(rd)
writers.append(wr)
r2w[rd] = wr
w2r[wr] = rd
bufs = []
while writers:
ready = p.poll()
ready_writers = find_ready_matching(ready, select.POLLOUT)
if not ready_writers:
self.fail("no pipes ready for writing")
wr = random.choice(ready_writers)
os.write(wr, MSG)
ready = p.poll()
ready_readers = find_ready_matching(ready, select.POLLIN)
if not ready_readers:
self.fail("no pipes ready for reading")
self.assertEqual([w2r[wr]], ready_readers)
rd = ready_readers[0]
buf = os.read(rd, MSG_LEN)
self.assertEqual(len(buf), MSG_LEN)
bufs.append(buf)
os.close(r2w[rd]) ; os.close(rd)
p.unregister(r2w[rd])
p.unregister(rd)
writers.remove(r2w[rd])
self.assertEqual(bufs, [MSG] * NUM_PIPES)
def test_close(self):
open_file = open(__file__, 'rb')
self.addCleanup(open_file.close)
fd = open_file.fileno()
devpoll = select.devpoll()
self.assertIsInstance(devpoll.fileno(), int)
self.assertFalse(devpoll.closed)
devpoll.close()
self.assertTrue(devpoll.closed)
self.assertRaises(ValueError, devpoll.fileno)
devpoll.close()
self.assertRaises(ValueError, devpoll.modify, fd, select.POLLIN)
self.assertRaises(ValueError, devpoll.poll)
self.assertRaises(ValueError, devpoll.register, fd, fd, select.POLLIN)
self.assertRaises(ValueError, devpoll.unregister, fd)
def test_timeout_overflow(self):
pollster = select.devpoll()
w, r = os.pipe()
pollster.register(w)
pollster.poll(-1)
self.assertRaises(OverflowError, pollster.poll, -2)
self.assertRaises(OverflowError, pollster.poll, -1 << 31)
self.assertRaises(OverflowError, pollster.poll, -1 << 64)
pollster.poll(0)
pollster.poll(1)
pollster.poll(1 << 30)
self.assertRaises(OverflowError, pollster.poll, 1 << 31)
self.assertRaises(OverflowError, pollster.poll, 1 << 63)
self.assertRaises(OverflowError, pollster.poll, 1 << 64)
def test_close(self):
open_file = open(__file__, "rb")
self.addCleanup(open_file.close)
fd = open_file.fileno()
devpoll = select.devpoll()
# test fileno() method and closed attribute
self.assertIsInstance(devpoll.fileno(), int)
self.assertFalse(devpoll.closed)
# test close()
devpoll.close()
self.assertTrue(devpoll.closed)
self.assertRaises(ValueError, devpoll.fileno)
# close() can be called more than once
devpoll.close()
# operations must fail with ValueError("I/O operation on closed ...")
self.assertRaises(ValueError, devpoll.modify, fd, select.POLLIN)
self.assertRaises(ValueError, devpoll.poll)
self.assertRaises(ValueError, devpoll.register, fd, fd, select.POLLIN)
self.assertRaises(ValueError, devpoll.unregister, fd)
def test_close(self):
open_file = open(__file__, "rb")
self.addCleanup(open_file.close)
fd = open_file.fileno()
devpoll = select.devpoll()
# test fileno() method and closed attribute
self.assertIsInstance(devpoll.fileno(), int)
self.assertFalse(devpoll.closed)
# test close()
devpoll.close()
self.assertTrue(devpoll.closed)
self.assertRaises(ValueError, devpoll.fileno)
# close() can be called more than once
devpoll.close()
# operations must fail with ValueError("I/O operation on closed ...")
self.assertRaises(ValueError, devpoll.modify, fd, select.POLLIN)
self.assertRaises(ValueError, devpoll.poll)
self.assertRaises(ValueError, devpoll.register, fd, select.POLLIN)
self.assertRaises(ValueError, devpoll.unregister, fd)
def __init_poller(self):
self.dp = select.devpoll()
def test_fd_non_inheritable(self):
devpoll = select.devpoll()
self.addCleanup(devpoll.close)
self.assertEqual(os.get_inheritable(devpoll.fileno()), False)
def test_fd_non_inheritable(self):
devpoll = select.devpoll()
self.addCleanup(devpoll.close)
self.assertEqual(os.get_inheritable(devpoll.fileno()), False)
def __init__(self):
super().__init__()
self._devpoll = select.devpoll()
def test_disallow_instantiation(self):
support.check_disallow_instantiation(self, type(select.poll()))
if hasattr(select, 'devpoll'):
support.check_disallow_instantiation(self, type(select.devpoll()))
def __init__(self):
super().__init__()
self._devpoll = select.devpoll()
def __init__(self):
super(DevpollSelector, self).__init__()
self._devpoll = select.devpoll()
def __init__(self):
super(DevpollSelector, self).__init__()
self._devpoll = select.devpoll()
