Python select.devpoll() Examples

The following are 30 code examples of select.devpoll(). You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may also want to check out all available functions/classes of the module select , or try the search function .
Example #1
Source File: test_devpoll.py    From Fluid-Designer with GNU General Public License v3.0 6 votes vote down vote up 
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)
Example #2
Source File: selectors.py    From Flask-P2P with MIT License 6 votes vote down vote up 
def select(self, timeout=None):
            if timeout is None:
                timeout = None
            elif timeout <= 0:
                timeout = 0
            else:
                # devpoll() has a resolution of 1 millisecond, round away from
                # zero to wait *at least* timeout seconds.
                timeout = math.ceil(timeout * 1e3)
            ready = []
            try:
                fd_event_list = self._devpoll.poll(timeout)
            except InterruptedError:
                return ready
            for fd, event in fd_event_list:
                events = 0
                if event & ~select.POLLIN:
                    events |= EVENT_WRITE
                if event & ~select.POLLOUT:
                    events |= EVENT_READ

                key = self._key_from_fd(fd)
                if key:
                    ready.append((key, events & key.events))
            return ready
Example #3
Source File: test_devpoll.py    From ironpython3 with Apache License 2.0 6 votes vote down vote up 
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)
Example #4
Source File: test_devpoll.py    From ironpython3 with Apache License 2.0 6 votes vote down vote up 
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)
Example #5
Source File: selectors.py    From annotated-py-projects with MIT License 6 votes vote down vote up 
def select(self, timeout=None):
            if timeout is None:
                timeout = None
            elif timeout <= 0:
                timeout = 0
            else:
                # devpoll() has a resolution of 1 millisecond, round away from
                # zero to wait *at least* timeout seconds.
                timeout = math.ceil(timeout * 1e3)
            ready = []
            try:
                fd_event_list = self._devpoll.poll(timeout)
            except InterruptedError:
                return ready
            for fd, event in fd_event_list:
                events = 0
                if event & ~select.POLLIN:
                    events |= EVENT_WRITE
                if event & ~select.POLLOUT:
                    events |= EVENT_READ

                key = self._key_from_fd(fd)
                if key:
                    ready.append((key, events & key.events))
            return ready
Example #6
Source File: selectors.py    From Project-New-Reign---Nemesis-Main with GNU General Public License v3.0 6 votes vote down vote up 
def select(self, timeout=None):
            if timeout is None:
                timeout = None
            elif timeout <= 0:
                timeout = 0
            else:
                # devpoll() has a resolution of 1 millisecond, round away from
                # zero to wait *at least* timeout seconds.
                timeout = math.ceil(timeout * 1e3)
            ready = []
            try:
                fd_event_list = self._devpoll.poll(timeout)
            except InterruptedError:
                return ready
            for fd, event in fd_event_list:
                events = 0
                if event & ~select.POLLIN:
                    events |= EVENT_WRITE
                if event & ~select.POLLOUT:
                    events |= EVENT_READ

                key = self._key_from_fd(fd)
                if key:
                    ready.append((key, events & key.events))
            return ready
Example #7
Source File: test_devpoll.py    From Project-New-Reign---Nemesis-Main with GNU General Public License v3.0 6 votes vote down vote up 
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)
Example #8
Source File: selectors.py    From Fluid-Designer with GNU General Public License v3.0 6 votes vote down vote up 
def select(self, timeout=None):
            if timeout is None:
                timeout = None
            elif timeout <= 0:
                timeout = 0
            else:
                # devpoll() has a resolution of 1 millisecond, round away from
                # zero to wait *at least* timeout seconds.
                timeout = math.ceil(timeout * 1e3)
            ready = []
            try:
                fd_event_list = self._devpoll.poll(timeout)
            except InterruptedError:
                return ready
            for fd, event in fd_event_list:
                events = 0
                if event & ~select.POLLIN:
                    events |= EVENT_WRITE
                if event & ~select.POLLOUT:
                    events |= EVENT_READ

                key = self._key_from_fd(fd)
                if key:
                    ready.append((key, events & key.events))
            return ready
Example #9
Source File: selectors.py    From jbox with MIT License 6 votes vote down vote up 
def select(self, timeout=None):
            if timeout is None:
                timeout = None
            elif timeout <= 0:
                timeout = 0
            else:
                # devpoll() has a resolution of 1 millisecond, round away from
                # zero to wait *at least* timeout seconds.
                timeout = math.ceil(timeout * 1e3)
            ready = []
            try:
                fd_event_list = self._devpoll.poll(timeout)
            except InterruptedError:
                return ready
            for fd, event in fd_event_list:
                events = 0
                if event & ~select.POLLIN:
                    events |= EVENT_WRITE
                if event & ~select.POLLOUT:
                    events |= EVENT_READ

                key = self._key_from_fd(fd)
                if key:
                    ready.append((key, events & key.events))
            return ready
Example #10
Source File: test_devpoll.py    From Project-New-Reign---Nemesis-Main with GNU General Public License v3.0 5 votes vote down vote up 
def test_fd_non_inheritable(self):
        devpoll = select.devpoll()
        self.addCleanup(devpoll.close)
        self.assertEqual(os.get_inheritable(devpoll.fileno()), False)
Example #11
Source File: test_devpoll.py    From Project-New-Reign---Nemesis-Main with GNU General Public License v3.0 5 votes vote down vote up 
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, 1 << 64)
        self.assertRaises(OverflowError, pollster.modify, 1, -1)
        self.assertRaises(OverflowError, pollster.modify, 1, 1 << 64)
Example #12
Source File: eintr_tester.py    From Project-New-Reign---Nemesis-Main with GNU General Public License v3.0 5 votes vote down vote up 
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)
Example #13
Source File: eintr_tester.py    From android_universal with MIT License 5 votes vote down vote up 
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)
Example #14
Source File: selectors.py    From Project-New-Reign---Nemesis-Main with GNU General Public License v3.0 5 votes vote down vote up 
def close(self):
            self._kqueue.close()
            super().close()


# Choose the best implementation, roughly:
#    epoll|kqueue|devpoll > poll > select.
# select() also can't accept a FD > FD_SETSIZE (usually around 1024)
Example #15
Source File: test_devpoll.py    From Project-New-Reign---Nemesis-Main with GNU General Public License v3.0 5 votes vote down vote up 
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)
Example #16
Source File: selectors.py    From Project-New-Reign---Nemesis-Main with GNU General Public License v3.0 5 votes vote down vote up 
def __init__(self):
            super().__init__()
            self._devpoll = select.devpoll()
Example #17
Source File: selectors.py    From annotated-py-projects with MIT License 5 votes vote down vote up 
def close(self):
            self._kqueue.close()
            super().close()


# Choose the best implementation, roughly:
#    epoll|kqueue|devpoll > poll > select.
# select() also can't accept a FD > FD_SETSIZE (usually around 1024)
Example #18
Source File: ioloop.py    From pyftpdlib with MIT License 5 votes vote down vote up 
def fileno(self):
                """Return devpoll() fd."""
                return self._poller.fileno()
Example #19
Source File: selectors.py    From android_universal with MIT License 5 votes vote down vote up 
def close(self):
            self._selector.close()
            super().close()


# Choose the best implementation, roughly:
#    epoll|kqueue|devpoll > poll > select.
# select() also can't accept a FD > FD_SETSIZE (usually around 1024)
Example #20
Source File: selectors.py    From jbox with MIT License 5 votes vote down vote up 
def __init__(self):
            super(DevpollSelector, self).__init__()
            self._devpoll = select.devpoll()
Example #21
Source File: selectors.py    From annotated-py-projects with MIT License 5 votes vote down vote up 
def __init__(self):
            super().__init__()
            self._devpoll = select.devpoll()
Example #22
Source File: selectors.py    From Flask-P2P with MIT License 5 votes vote down vote up 
def close(self):
            self._kqueue.close()
            super(KqueueSelector, self).close()


# Choose the best implementation: roughly, epoll|kqueue|devpoll > poll > select.
# select() also can't accept a FD > FD_SETSIZE (usually around 1024)
Example #23
Source File: test_devpoll.py    From ironpython3 with Apache License 2.0 5 votes vote down vote up 
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, 1 << 64)
        self.assertRaises(OverflowError, pollster.modify, 1, -1)
        self.assertRaises(OverflowError, pollster.modify, 1, 1 << 64)
Example #24
Source File: selectors.py    From jbox with MIT License 5 votes vote down vote up 
def close(self):
            self._kqueue.close()
            super(KqueueSelector, self).close()


# Choose the best implementation: roughly, epoll|kqueue|devpoll > poll > select.
# select() also can't accept a FD > FD_SETSIZE (usually around 1024)
Example #25
Source File: ioloop.py    From oss-ftp with MIT License 5 votes vote down vote up 
def fileno(self):
                """Return devpoll() fd."""
                return self._poller.fileno()
Example #26
Source File: ioloop.py    From oss-ftp with MIT License 5 votes vote down vote up 
def fileno(self):
                """Return devpoll() fd."""
                return self._poller.fileno()
Example #27
Source File: ioloop.py    From script-languages with MIT License 5 votes vote down vote up 
def fileno(self):
                """Return devpoll() fd."""
                return self._poller.fileno()
Example #28
Source File: selectors.py    From Fluid-Designer with GNU General Public License v3.0 5 votes vote down vote up 
def __init__(self):
            super().__init__()
            self._devpoll = select.devpoll()
Example #29
Source File: selectors.py    From Fluid-Designer with GNU General Public License v3.0 5 votes vote down vote up 
def close(self):
            self._kqueue.close()
            super().close()


# Choose the best implementation, roughly:
#    epoll|kqueue|devpoll > poll > select.
# select() also can't accept a FD > FD_SETSIZE (usually around 1024)
Example #30
Source File: eintr_tester.py    From Fluid-Designer with GNU General Public License v3.0 5 votes vote down vote up 
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)