Python os.set_blocking() Examples

The following are 30 code examples of os.set_blocking(). 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 os , or try the search function .
Example #1
Source File: test_signal.py    From android_universal with MIT License 6 votes vote down vote up 
def test_set_wakeup_fd_blocking(self):
        rfd, wfd = os.pipe()
        self.addCleanup(os.close, rfd)
        self.addCleanup(os.close, wfd)

        # fd must be non-blocking
        os.set_blocking(wfd, True)
        with self.assertRaises(ValueError) as cm:
            signal.set_wakeup_fd(wfd)
        self.assertEqual(str(cm.exception),
                         "the fd %s must be in non-blocking mode" % wfd)

        # non-blocking is ok
        os.set_blocking(wfd, False)
        signal.set_wakeup_fd(wfd)
        signal.set_wakeup_fd(-1)
Example #2
Source File: test_signal.py    From Fluid-Designer with GNU General Public License v3.0 6 votes vote down vote up 
def test_set_wakeup_fd_result(self):
        r1, w1 = os.pipe()
        self.addCleanup(os.close, r1)
        self.addCleanup(os.close, w1)
        r2, w2 = os.pipe()
        self.addCleanup(os.close, r2)
        self.addCleanup(os.close, w2)

        if hasattr(os, 'set_blocking'):
            os.set_blocking(w1, False)
            os.set_blocking(w2, False)

        signal.set_wakeup_fd(w1)
        self.assertEqual(signal.set_wakeup_fd(w2), w1)
        self.assertEqual(signal.set_wakeup_fd(-1), w2)
        self.assertEqual(signal.set_wakeup_fd(-1), -1)
Example #3
Source File: test_signal.py    From Fluid-Designer with GNU General Public License v3.0 6 votes vote down vote up 
def test_set_wakeup_fd_blocking(self):
        rfd, wfd = os.pipe()
        self.addCleanup(os.close, rfd)
        self.addCleanup(os.close, wfd)

        # fd must be non-blocking
        os.set_blocking(wfd, True)
        with self.assertRaises(ValueError) as cm:
            signal.set_wakeup_fd(wfd)
        self.assertEqual(str(cm.exception),
                         "the fd %s must be in non-blocking mode" % wfd)

        # non-blocking is ok
        os.set_blocking(wfd, False)
        signal.set_wakeup_fd(wfd)
        signal.set_wakeup_fd(-1)
Example #4
Source File: test_signal.py    From android_universal with MIT License 6 votes vote down vote up 
def test_set_wakeup_fd_result(self):
        r1, w1 = os.pipe()
        self.addCleanup(os.close, r1)
        self.addCleanup(os.close, w1)
        r2, w2 = os.pipe()
        self.addCleanup(os.close, r2)
        self.addCleanup(os.close, w2)

        if hasattr(os, 'set_blocking'):
            os.set_blocking(w1, False)
            os.set_blocking(w2, False)

        signal.set_wakeup_fd(w1)
        self.assertEqual(signal.set_wakeup_fd(w2), w1)
        self.assertEqual(signal.set_wakeup_fd(-1), w2)
        self.assertEqual(signal.set_wakeup_fd(-1), -1)
Example #5
Source File: test_signal.py    From Project-New-Reign---Nemesis-Main with GNU General Public License v3.0 6 votes vote down vote up 
def test_set_wakeup_fd_result(self):
        r1, w1 = os.pipe()
        self.addCleanup(os.close, r1)
        self.addCleanup(os.close, w1)
        r2, w2 = os.pipe()
        self.addCleanup(os.close, r2)
        self.addCleanup(os.close, w2)

        if hasattr(os, 'set_blocking'):
            os.set_blocking(w1, False)
            os.set_blocking(w2, False)

        signal.set_wakeup_fd(w1)
        self.assertEqual(signal.set_wakeup_fd(w2), w1)
        self.assertEqual(signal.set_wakeup_fd(-1), w2)
        self.assertEqual(signal.set_wakeup_fd(-1), -1)
Example #6
Source File: test_signal.py    From Project-New-Reign---Nemesis-Main with GNU General Public License v3.0 6 votes vote down vote up 
def test_set_wakeup_fd_blocking(self):
        rfd, wfd = os.pipe()
        self.addCleanup(os.close, rfd)
        self.addCleanup(os.close, wfd)

        # fd must be non-blocking
        os.set_blocking(wfd, True)
        with self.assertRaises(ValueError) as cm:
            signal.set_wakeup_fd(wfd)
        self.assertEqual(str(cm.exception),
                         "the fd %s must be in non-blocking mode" % wfd)

        # non-blocking is ok
        os.set_blocking(wfd, False)
        signal.set_wakeup_fd(wfd)
        signal.set_wakeup_fd(-1)
Example #7
Source File: asyncore.py    From Project-New-Reign---Nemesis-Main with GNU General Public License v3.0 5 votes vote down vote up 
def __init__(self, fd, map=None):
            dispatcher.__init__(self, None, map)
            self.connected = True
            try:
                fd = fd.fileno()
            except AttributeError:
                pass
            self.set_file(fd)
            # set it to non-blocking mode
            os.set_blocking(fd, False)
Example #8
Source File: asyncore.py    From Fluid-Designer with GNU General Public License v3.0 5 votes vote down vote up 
def __init__(self, fd, map=None):
            dispatcher.__init__(self, None, map)
            self.connected = True
            try:
                fd = fd.fileno()
            except AttributeError:
                pass
            self.set_file(fd)
            # set it to non-blocking mode
            os.set_blocking(fd, False)
Example #9
Source File: test_signal.py    From Project-New-Reign---Nemesis-Main with GNU General Public License v3.0 5 votes vote down vote up 
def check_wakeup(self, test_body, *signals, ordered=True):
        # use a subprocess to have only one thread
        code = """if 1:
        import _testcapi
        import os
        import signal
        import struct

        signals = {!r}

        def handler(signum, frame):
            pass

        def check_signum(signals):
            data = os.read(read, len(signals)+1)
            raised = struct.unpack('%uB' % len(data), data)
            if not {!r}:
                raised = set(raised)
                signals = set(signals)
            if raised != signals:
                raise Exception("%r != %r" % (raised, signals))

        {}

        signal.signal(signal.SIGALRM, handler)
        read, write = os.pipe()
        os.set_blocking(write, False)
        signal.set_wakeup_fd(write)

        test()
        check_signum(signals)

        os.close(read)
        os.close(write)
        """.format(tuple(map(int, signals)), ordered, test_body)

        assert_python_ok('-c', code)
Example #10
Source File: test_os.py    From Project-New-Reign---Nemesis-Main with GNU General Public License v3.0 5 votes vote down vote up 
def test_blocking(self):
        self.check(os.get_blocking)
        self.check(os.set_blocking, True)
Example #11
Source File: test_os.py    From Project-New-Reign---Nemesis-Main with GNU General Public License v3.0 5 votes vote down vote up 
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)
Example #12
Source File: handlers.py    From canute-ui with GNU General Public License v3.0 5 votes vote down vote up 
def _read_pages2(book, background=False):
    '''Index `book`.
    If `background` is True, yield during long operations.
    If `book` is already loaded, does nothing.
    Upon return `book` will be in state DONE or FAILED.'''
    if book.filename == manual_filename:
        return book
    if book.load_state == book_file.LoadState.DONE:
        return book
    try:
        (r, w) = os.pipe2(os.O_CLOEXEC)
        indexer.trigger_load(book.filename, w)
        buf = None
        if background:
            os.set_blocking(r, False)
            while not buf:
                try:
                    buf = os.read(r, 10)
                except BlockingIOError:
                    await asyncio.sleep(0)
        else:
            os.set_blocking(r, True)
            buf = os.read(r, 10)
        if buf != b'ok':
            raise BookFileError(
                'loading failed: {}'.format(book.filename))
        log.info('loading complete for {}'.format(book.filename))
        bookmarks = book.bookmarks
        if indexer.get_page_count(book.filename) > 1:
            # add an end-of-book bookmark
            bookmarks += (indexer.get_page_count(book.filename) - 1,)
        return book._replace(load_state=book_file.LoadState.DONE,
                             bookmarks=bookmarks,
                             num_pages=indexer.get_page_count(book.filename),
                             indexed=True)
    except Exception:
        log.warning('book loading failed for {}'.format(book.filename))
        return book._replace(load_state=book_file.LoadState.FAILED)
Example #13
Source File: unix_events.py    From odoo13-x64 with GNU General Public License v3.0 5 votes vote down vote up 
def __init__(self, loop, pipe, protocol, waiter=None, extra=None):
        super().__init__(extra)
        self._extra['pipe'] = pipe
        self._loop = loop
        self._pipe = pipe
        self._fileno = pipe.fileno()
        self._protocol = protocol
        self._closing = False
        self._paused = False

        mode = os.fstat(self._fileno).st_mode
        if not (stat.S_ISFIFO(mode) or
                stat.S_ISSOCK(mode) or
                stat.S_ISCHR(mode)):
            self._pipe = None
            self._fileno = None
            self._protocol = None
            raise ValueError("Pipe transport is for pipes/sockets only.")

        os.set_blocking(self._fileno, False)

        self._loop.call_soon(self._protocol.connection_made, self)
        # only start reading when connection_made() has been called
        self._loop.call_soon(self._loop._add_reader,
                             self._fileno, self._read_ready)
        if waiter is not None:
            # only wake up the waiter when connection_made() has been called
            self._loop.call_soon(futures._set_result_unless_cancelled,
                                 waiter, None)
Example #14
Source File: unix_events.py    From odoo13-x64 with GNU General Public License v3.0 5 votes vote down vote up 
def __init__(self, loop, pipe, protocol, waiter=None, extra=None):
        super().__init__(extra, loop)
        self._extra['pipe'] = pipe
        self._pipe = pipe
        self._fileno = pipe.fileno()
        self._protocol = protocol
        self._buffer = bytearray()
        self._conn_lost = 0
        self._closing = False  # Set when close() or write_eof() called.

        mode = os.fstat(self._fileno).st_mode
        is_char = stat.S_ISCHR(mode)
        is_fifo = stat.S_ISFIFO(mode)
        is_socket = stat.S_ISSOCK(mode)
        if not (is_char or is_fifo or is_socket):
            self._pipe = None
            self._fileno = None
            self._protocol = None
            raise ValueError("Pipe transport is only for "
                             "pipes, sockets and character devices")

        os.set_blocking(self._fileno, False)
        self._loop.call_soon(self._protocol.connection_made, self)

        # On AIX, the reader trick (to be notified when the read end of the
        # socket is closed) only works for sockets. On other platforms it
        # works for pipes and sockets. (Exception: OS X 10.4?  Issue #19294.)
        if is_socket or (is_fifo and not sys.platform.startswith("aix")):
            # only start reading when connection_made() has been called
            self._loop.call_soon(self._loop._add_reader,
                                 self._fileno, self._read_ready)

        if waiter is not None:
            # only wake up the waiter when connection_made() has been called
            self._loop.call_soon(futures._set_result_unless_cancelled,
                                 waiter, None)
Example #15
Source File: unix_events.py    From Carnets with BSD 3-Clause "New" or "Revised" License 5 votes vote down vote up 
def __init__(self, loop, pipe, protocol, waiter=None, extra=None):
        super().__init__(extra)
        self._extra['pipe'] = pipe
        self._loop = loop
        self._pipe = pipe
        self._fileno = pipe.fileno()
        self._protocol = protocol
        self._closing = False

        mode = os.fstat(self._fileno).st_mode
        if not (stat.S_ISFIFO(mode) or
                stat.S_ISSOCK(mode) or
                stat.S_ISCHR(mode)):
            self._pipe = None
            self._fileno = None
            self._protocol = None
            raise ValueError("Pipe transport is for pipes/sockets only.")

        os.set_blocking(self._fileno, False)

        self._loop.call_soon(self._protocol.connection_made, self)
        # only start reading when connection_made() has been called
        self._loop.call_soon(self._loop._add_reader,
                             self._fileno, self._read_ready)
        if waiter is not None:
            # only wake up the waiter when connection_made() has been called
            self._loop.call_soon(futures._set_result_unless_cancelled,
                                 waiter, None)
Example #16
Source File: unix_events.py    From Carnets with BSD 3-Clause "New" or "Revised" License 5 votes vote down vote up 
def __init__(self, loop, pipe, protocol, waiter=None, extra=None):
        super().__init__(extra, loop)
        self._extra['pipe'] = pipe
        self._pipe = pipe
        self._fileno = pipe.fileno()
        self._protocol = protocol
        self._buffer = bytearray()
        self._conn_lost = 0
        self._closing = False  # Set when close() or write_eof() called.

        mode = os.fstat(self._fileno).st_mode
        is_char = stat.S_ISCHR(mode)
        is_fifo = stat.S_ISFIFO(mode)
        is_socket = stat.S_ISSOCK(mode)
        if not (is_char or is_fifo or is_socket):
            self._pipe = None
            self._fileno = None
            self._protocol = None
            raise ValueError("Pipe transport is only for "
                             "pipes, sockets and character devices")

        os.set_blocking(self._fileno, False)
        self._loop.call_soon(self._protocol.connection_made, self)

        # On AIX, the reader trick (to be notified when the read end of the
        # socket is closed) only works for sockets. On other platforms it
        # works for pipes and sockets. (Exception: OS X 10.4?  Issue #19294.)
        if is_socket or (is_fifo and not sys.platform.startswith("aix")):
            # only start reading when connection_made() has been called
            self._loop.call_soon(self._loop._add_reader,
                                 self._fileno, self._read_ready)

        if waiter is not None:
            # only wake up the waiter when connection_made() has been called
            self._loop.call_soon(futures._set_result_unless_cancelled,
                                 waiter, None)
Example #17
Source File: unix_events.py    From android_universal with MIT License 5 votes vote down vote up 
def __init__(self, loop, pipe, protocol, waiter=None, extra=None):
        super().__init__(extra)
        self._extra['pipe'] = pipe
        self._loop = loop
        self._pipe = pipe
        self._fileno = pipe.fileno()
        self._protocol = protocol
        self._closing = False

        mode = os.fstat(self._fileno).st_mode
        if not (stat.S_ISFIFO(mode) or
                stat.S_ISSOCK(mode) or
                stat.S_ISCHR(mode)):
            self._pipe = None
            self._fileno = None
            self._protocol = None
            raise ValueError("Pipe transport is for pipes/sockets only.")

        os.set_blocking(self._fileno, False)

        self._loop.call_soon(self._protocol.connection_made, self)
        # only start reading when connection_made() has been called
        self._loop.call_soon(self._loop._add_reader,
                             self._fileno, self._read_ready)
        if waiter is not None:
            # only wake up the waiter when connection_made() has been called
            self._loop.call_soon(futures._set_result_unless_cancelled,
                                 waiter, None)
Example #18
Source File: unix_events.py    From android_universal with MIT License 5 votes vote down vote up 
def __init__(self, loop, pipe, protocol, waiter=None, extra=None):
        super().__init__(extra, loop)
        self._extra['pipe'] = pipe
        self._pipe = pipe
        self._fileno = pipe.fileno()
        self._protocol = protocol
        self._buffer = bytearray()
        self._conn_lost = 0
        self._closing = False  # Set when close() or write_eof() called.

        mode = os.fstat(self._fileno).st_mode
        is_char = stat.S_ISCHR(mode)
        is_fifo = stat.S_ISFIFO(mode)
        is_socket = stat.S_ISSOCK(mode)
        if not (is_char or is_fifo or is_socket):
            self._pipe = None
            self._fileno = None
            self._protocol = None
            raise ValueError("Pipe transport is only for "
                             "pipes, sockets and character devices")

        os.set_blocking(self._fileno, False)
        self._loop.call_soon(self._protocol.connection_made, self)

        # On AIX, the reader trick (to be notified when the read end of the
        # socket is closed) only works for sockets. On other platforms it
        # works for pipes and sockets. (Exception: OS X 10.4?  Issue #19294.)
        if is_socket or (is_fifo and not sys.platform.startswith("aix")):
            # only start reading when connection_made() has been called
            self._loop.call_soon(self._loop._add_reader,
                                 self._fileno, self._read_ready)

        if waiter is not None:
            # only wake up the waiter when connection_made() has been called
            self._loop.call_soon(futures._set_result_unless_cancelled,
                                 waiter, None)
Example #19
Source File: asyncore.py    From android_universal with MIT License 5 votes vote down vote up 
def __init__(self, fd, map=None):
            dispatcher.__init__(self, None, map)
            self.connected = True
            try:
                fd = fd.fileno()
            except AttributeError:
                pass
            self.set_file(fd)
            # set it to non-blocking mode
            os.set_blocking(fd, False)
Example #20
Source File: kernel.py    From cjworkbench with GNU Affero General Public License v3.0 5 votes vote down vote up 
def __post_init__(self):
        os.set_blocking(self.fileno, False)
Example #21
Source File: unix_events.py    From Fluid-Designer with GNU General Public License v3.0 5 votes vote down vote up 
def _set_nonblocking(fd):
        os.set_blocking(fd, False)
Example #22
Source File: test_signal.py    From Fluid-Designer with GNU General Public License v3.0 5 votes vote down vote up 
def check_wakeup(self, test_body, *signals, ordered=True):
        # use a subprocess to have only one thread
        code = """if 1:
        import _testcapi
        import os
        import signal
        import struct

        signals = {!r}

        def handler(signum, frame):
            pass

        def check_signum(signals):
            data = os.read(read, len(signals)+1)
            raised = struct.unpack('%uB' % len(data), data)
            if not {!r}:
                raised = set(raised)
                signals = set(signals)
            if raised != signals:
                raise Exception("%r != %r" % (raised, signals))

        {}

        signal.signal(signal.SIGALRM, handler)
        read, write = os.pipe()
        os.set_blocking(write, False)
        signal.set_wakeup_fd(write)

        test()
        check_signum(signals)

        os.close(read)
        os.close(write)
        """.format(tuple(map(int, signals)), ordered, test_body)

        assert_python_ok('-c', code)
Example #23
Source File: test_os.py    From Fluid-Designer with GNU General Public License v3.0 5 votes vote down vote up 
def test_blocking(self):
        self.check(os.get_blocking)
        self.check(os.set_blocking, True)
Example #24
Source File: test_os.py    From Fluid-Designer with GNU General Public License v3.0 5 votes vote down vote up 
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)
Example #25
Source File: unix_events.py    From Imogen with MIT License 5 votes vote down vote up 
def __init__(self, loop, pipe, protocol, waiter=None, extra=None):
        super().__init__(extra)
        self._extra['pipe'] = pipe
        self._loop = loop
        self._pipe = pipe
        self._fileno = pipe.fileno()
        self._protocol = protocol
        self._closing = False

        mode = os.fstat(self._fileno).st_mode
        if not (stat.S_ISFIFO(mode) or
                stat.S_ISSOCK(mode) or
                stat.S_ISCHR(mode)):
            self._pipe = None
            self._fileno = None
            self._protocol = None
            raise ValueError("Pipe transport is for pipes/sockets only.")

        os.set_blocking(self._fileno, False)

        self._loop.call_soon(self._protocol.connection_made, self)
        # only start reading when connection_made() has been called
        self._loop.call_soon(self._loop._add_reader,
                             self._fileno, self._read_ready)
        if waiter is not None:
            # only wake up the waiter when connection_made() has been called
            self._loop.call_soon(futures._set_result_unless_cancelled,
                                 waiter, None)
Example #26
Source File: unix_events.py    From Imogen with MIT License 5 votes vote down vote up 
def __init__(self, loop, pipe, protocol, waiter=None, extra=None):
        super().__init__(extra, loop)
        self._extra['pipe'] = pipe
        self._pipe = pipe
        self._fileno = pipe.fileno()
        self._protocol = protocol
        self._buffer = bytearray()
        self._conn_lost = 0
        self._closing = False  # Set when close() or write_eof() called.

        mode = os.fstat(self._fileno).st_mode
        is_char = stat.S_ISCHR(mode)
        is_fifo = stat.S_ISFIFO(mode)
        is_socket = stat.S_ISSOCK(mode)
        if not (is_char or is_fifo or is_socket):
            self._pipe = None
            self._fileno = None
            self._protocol = None
            raise ValueError("Pipe transport is only for "
                             "pipes, sockets and character devices")

        os.set_blocking(self._fileno, False)
        self._loop.call_soon(self._protocol.connection_made, self)

        # On AIX, the reader trick (to be notified when the read end of the
        # socket is closed) only works for sockets. On other platforms it
        # works for pipes and sockets. (Exception: OS X 10.4?  Issue #19294.)
        if is_socket or (is_fifo and not sys.platform.startswith("aix")):
            # only start reading when connection_made() has been called
            self._loop.call_soon(self._loop._add_reader,
                                 self._fileno, self._read_ready)

        if waiter is not None:
            # only wake up the waiter when connection_made() has been called
            self._loop.call_soon(futures._set_result_unless_cancelled,
                                 waiter, None)
Example #27
Source File: asyncore.py    From Imogen with MIT License 5 votes vote down vote up 
def __init__(self, fd, map=None):
            dispatcher.__init__(self, None, map)
            self.connected = True
            try:
                fd = fd.fileno()
            except AttributeError:
                pass
            self.set_file(fd)
            # set it to non-blocking mode
            os.set_blocking(fd, False)
Example #28
Source File: glib_events.py    From pychess with GNU General Public License v3.0 5 votes vote down vote up 
def _set_nonblocking(fd):
        os.set_blocking(fd, False)
Example #29
Source File: unix_events.py    From ironpython3 with Apache License 2.0 5 votes vote down vote up 
def _set_nonblocking(fd):
        os.set_blocking(fd, False)
Example #30
Source File: child.py    From kitty with GNU General Public License v3.0 5 votes vote down vote up 
def remove_blocking(fd: int) -> None:
    os.set_blocking(fd, False)