Python select.EPOLLOUT Examples
The following are 30
code examples of select.EPOLLOUT().
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and go to the original project or source file by following the links above each example.
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Example #1
| Source File: test_epoll.py From ironpython3 with Apache License 2.0 | 6 votes |
|
def test_fromfd(self):
server, client = self._connected_pair()
ep = select.epoll(2)
ep2 = select.epoll.fromfd(ep.fileno())
ep2.register(server.fileno(), select.EPOLLIN | select.EPOLLOUT)
ep2.register(client.fileno(), select.EPOLLIN | select.EPOLLOUT)
events = ep.poll(1, 4)
events2 = ep2.poll(0.9, 4)
self.assertEqual(len(events), 2)
self.assertEqual(len(events2), 2)
ep.close()
try:
ep2.poll(1, 4)
except OSError as e:
self.assertEqual(e.args[0], errno.EBADF, e)
else:
self.fail("epoll on closed fd didn't raise EBADF")
Example #2
| Source File: test_epoll.py From BinderFilter with MIT License | 6 votes |
|
def test_fromfd(self):
server, client = self._connected_pair()
ep = select.epoll(2)
ep2 = select.epoll.fromfd(ep.fileno())
ep2.register(server.fileno(), select.EPOLLIN | select.EPOLLOUT)
ep2.register(client.fileno(), select.EPOLLIN | select.EPOLLOUT)
events = ep.poll(1, 4)
events2 = ep2.poll(0.9, 4)
self.assertEqual(len(events), 2)
self.assertEqual(len(events2), 2)
ep.close()
try:
ep2.poll(1, 4)
except IOError, e:
self.assertEqual(e.args[0], errno.EBADF, e)
Example #3
| Source File: test_epoll.py From Fluid-Designer with GNU General Public License v3.0 | 6 votes |
|
def test_fromfd(self):
server, client = self._connected_pair()
ep = select.epoll(2)
ep2 = select.epoll.fromfd(ep.fileno())
ep2.register(server.fileno(), select.EPOLLIN | select.EPOLLOUT)
ep2.register(client.fileno(), select.EPOLLIN | select.EPOLLOUT)
events = ep.poll(1, 4)
events2 = ep2.poll(0.9, 4)
self.assertEqual(len(events), 2)
self.assertEqual(len(events2), 2)
ep.close()
try:
ep2.poll(1, 4)
except OSError as e:
self.assertEqual(e.args[0], errno.EBADF, e)
else:
self.fail("epoll on closed fd didn't raise EBADF")
Example #4
| Source File: test_epoll.py From ironpython2 with Apache License 2.0 | 6 votes |
|
def test_fromfd(self):
server, client = self._connected_pair()
ep = select.epoll(2)
ep2 = select.epoll.fromfd(ep.fileno())
ep2.register(server.fileno(), select.EPOLLIN | select.EPOLLOUT)
ep2.register(client.fileno(), select.EPOLLIN | select.EPOLLOUT)
events = ep.poll(1, 4)
events2 = ep2.poll(0.9, 4)
self.assertEqual(len(events), 2)
self.assertEqual(len(events2), 2)
ep.close()
try:
ep2.poll(1, 4)
except IOError, e:
self.assertEqual(e.args[0], errno.EBADF, e)
Example #5
| Source File: test_epoll.py From oss-ftp with MIT License | 6 votes |
|
def test_fromfd(self):
server, client = self._connected_pair()
ep = select.epoll(2)
ep2 = select.epoll.fromfd(ep.fileno())
ep2.register(server.fileno(), select.EPOLLIN | select.EPOLLOUT)
ep2.register(client.fileno(), select.EPOLLIN | select.EPOLLOUT)
events = ep.poll(1, 4)
events2 = ep2.poll(0.9, 4)
self.assertEqual(len(events), 2)
self.assertEqual(len(events2), 2)
ep.close()
try:
ep2.poll(1, 4)
except IOError, e:
self.assertEqual(e.args[0], errno.EBADF, e)
Example #6
| Source File: selectors.py From python with Apache License 2.0 | 5 votes |
|
def register(self, fileobj, events, data=None):
key = super(EpollSelector, self).register(fileobj, events, data)
events_mask = 0
if events & EVENT_READ:
events_mask |= select.EPOLLIN
if events & EVENT_WRITE:
events_mask |= select.EPOLLOUT
_syscall_wrapper(self._epoll.register, False, key.fd, events_mask)
return key
Example #7
| Source File: epollreactor.py From learn_python3_spider with MIT License | 5 votes |
|
def addReader(self, reader):
"""
Add a FileDescriptor for notification of data available to read.
"""
try:
self._add(reader, self._reads, self._writes, self._selectables,
EPOLLIN, EPOLLOUT)
except IOError as e:
if e.errno == errno.EPERM:
# epoll(7) doesn't support certain file descriptors,
# e.g. filesystem files, so for those we just poll
# continuously:
self._continuousPolling.addReader(reader)
else:
raise
Example #8
| Source File: epollreactor.py From learn_python3_spider with MIT License | 5 votes |
|
def addWriter(self, writer):
"""
Add a FileDescriptor for notification of data available to write.
"""
try:
self._add(writer, self._writes, self._reads, self._selectables,
EPOLLOUT, EPOLLIN)
except IOError as e:
if e.errno == errno.EPERM:
# epoll(7) doesn't support certain file descriptors,
# e.g. filesystem files, so for those we just poll
# continuously:
self._continuousPolling.addWriter(writer)
else:
raise
Example #9
| Source File: epollreactor.py From learn_python3_spider with MIT License | 5 votes |
|
def removeReader(self, reader):
"""
Remove a Selectable for notification of data available to read.
"""
if self._continuousPolling.isReading(reader):
self._continuousPolling.removeReader(reader)
return
self._remove(reader, self._reads, self._writes, self._selectables,
EPOLLIN, EPOLLOUT)
Example #10
| Source File: selectors.py From telegram-robot-rss with Mozilla Public License 2.0 | 5 votes |
|
def register(self, fileobj, events, data=None):
key = super(EpollSelector, self).register(fileobj, events, data)
events_mask = 0
if events & EVENT_READ:
events_mask |= select.EPOLLIN
if events & EVENT_WRITE:
events_mask |= select.EPOLLOUT
_syscall_wrapper(self._epoll.register, False, key.fd, events_mask)
return key
Example #11
| Source File: poll.py From vanilla with MIT License | 5 votes |
|
def __init__(self):
self.q = select.epoll()
self.to_ = {
select.EPOLLIN: POLLIN,
select.EPOLLOUT: POLLOUT, }
self.from_ = dict((v, k) for k, v in self.to_.iteritems())
Example #12
| Source File: selectors.py From cadquery-freecad-module with GNU Lesser General Public License v3.0 | 5 votes |
|
def register(self, fileobj, events, data=None):
key = super(EpollSelector, self).register(fileobj, events, data)
events_mask = 0
if events & EVENT_READ:
events_mask |= select.EPOLLIN
if events & EVENT_WRITE:
events_mask |= select.EPOLLOUT
_syscall_wrapper(self._epoll.register, False, key.fd, events_mask)
return key
Example #13
| Source File: selectors.py From cadquery-freecad-module with GNU Lesser General Public License v3.0 | 5 votes |
|
def select(self, timeout=None):
if timeout is not None:
if timeout <= 0:
timeout = 0.0
else:
# select.epoll.poll() has a resolution of 1 millisecond
# but luckily takes seconds so we don't need a wrapper
# like PollSelector. Just for better rounding.
timeout = math.ceil(timeout * 1e3) * 1e-3
timeout = float(timeout)
else:
timeout = -1.0 # epoll.poll() must have a float.
# We always want at least 1 to ensure that select can be called
# with no file descriptors registered. Otherwise will fail.
max_events = max(len(self._fd_to_key), 1)
ready = []
fd_events = _syscall_wrapper(self._epoll.poll, True,
timeout=timeout,
maxevents=max_events)
for fd, event_mask in fd_events:
events = 0
if event_mask & ~select.EPOLLIN:
events |= EVENT_WRITE
if event_mask & ~select.EPOLLOUT:
events |= EVENT_READ
key = self._key_from_fd(fd)
if key:
ready.append((key, events & key.events))
return ready
Example #14
| Source File: _system_commands.py From colabtools with Apache License 2.0 | 5 votes |
|
def _run_command(cmd, clear_streamed_output):
"""Calls the shell command, forwarding input received on the stdin_socket."""
locale_encoding = locale.getpreferredencoding()
if locale_encoding != _ENCODING:
raise NotImplementedError(
'A UTF-8 locale is required. Got {}'.format(locale_encoding))
parent_pty, child_pty = pty.openpty()
_configure_term_settings(child_pty)
epoll = select.epoll()
epoll.register(
parent_pty,
(select.EPOLLIN | select.EPOLLOUT | select.EPOLLHUP | select.EPOLLERR))
try:
temporary_clearer = _tags.temporary if clear_streamed_output else _no_op
with temporary_clearer(), _display_stdin_widget(
delay_millis=500) as update_stdin_widget:
# TODO(b/115531839): Ensure that subprocesses are terminated upon
# interrupt.
p = subprocess.Popen(
cmd,
shell=True,
executable='/bin/bash',
stdout=child_pty,
stdin=child_pty,
stderr=child_pty,
close_fds=True)
# The child PTY is only needed by the spawned process.
os.close(child_pty)
return _monitor_process(parent_pty, epoll, p, cmd, update_stdin_widget)
finally:
epoll.close()
os.close(parent_pty)
Example #15
| Source File: selectors.py From Flask-P2P with MIT License | 5 votes |
|
def register(self, fileobj, events, data=None):
key = super(EpollSelector, self).register(fileobj, events, data)
epoll_events = 0
if events & EVENT_READ:
epoll_events |= select.EPOLLIN
if events & EVENT_WRITE:
epoll_events |= select.EPOLLOUT
self._epoll.register(key.fd, epoll_events)
return key
Example #16
| Source File: baseServer.py From DDDProxy with Apache License 2.0 | 5 votes |
|
def onIOEventFlagsChanged(self, connect): if connect._ioEventFlags != sockConnect.socketIOEventFlagsNone: eventmask = select.EPOLLERR | select.EPOLLHUP if connect._ioEventFlags & sockConnect.socketIOEventFlagsRead: eventmask |= select.EPOLLIN if connect._ioEventFlags & sockConnect.socketIOEventFlagsWrite: eventmask |= select.EPOLLOUT if not connect.registerEpoll: self.epollor.register(connect._sock.fileno(), eventmask) connect.registerEpoll = True else: self.epollor.modify(connect._sock.fileno(), eventmask) else: self.epollor.unregister(connect._sock.fileno()) connect.registerEpoll = False
Example #17
| Source File: selectors.py From Flask-P2P with MIT License | 5 votes |
|
def select(self, timeout=None):
if timeout is None:
timeout = -1
elif timeout <= 0:
timeout = 0
else:
# epoll_wait() has a resolution of 1 millisecond, round away
# from zero to wait *at least* timeout seconds.
timeout = math.ceil(timeout * 1e3) * 1e-3
max_ev = len(self._fd_to_key)
ready = []
try:
fd_event_list = wrap_error(self._epoll.poll, timeout, max_ev)
except InterruptedError:
return ready
for fd, event in fd_event_list:
events = 0
if event & ~select.EPOLLIN:
events |= EVENT_WRITE
if event & ~select.EPOLLOUT:
events |= EVENT_READ
key = self._key_from_fd(fd)
if key:
ready.append((key, events & key.events))
return ready
Example #18
| Source File: selectors.py From telegram-robot-rss with Mozilla Public License 2.0 | 5 votes |
|
def select(self, timeout=None):
if timeout is not None:
if timeout <= 0:
timeout = 0.0
else:
# select.epoll.poll() has a resolution of 1 millisecond
# but luckily takes seconds so we don't need a wrapper
# like PollSelector. Just for better rounding.
timeout = math.ceil(timeout * 1e3) * 1e-3
timeout = float(timeout)
else:
timeout = -1.0 # epoll.poll() must have a float.
# We always want at least 1 to ensure that select can be called
# with no file descriptors registered. Otherwise will fail.
max_events = max(len(self._fd_to_key), 1)
ready = []
fd_events = _syscall_wrapper(self._epoll.poll, True,
timeout=timeout,
maxevents=max_events)
for fd, event_mask in fd_events:
events = 0
if event_mask & ~select.EPOLLIN:
events |= EVENT_WRITE
if event_mask & ~select.EPOLLOUT:
events |= EVENT_READ
key = self._key_from_fd(fd)
if key:
ready.append((key, events & key.events))
return ready
Example #19
| Source File: selectors.py From ironpython3 with Apache License 2.0 | 5 votes |
|
def register(self, fileobj, events, data=None):
key = super().register(fileobj, events, data)
epoll_events = 0
if events & EVENT_READ:
epoll_events |= select.EPOLLIN
if events & EVENT_WRITE:
epoll_events |= select.EPOLLOUT
try:
self._epoll.register(key.fd, epoll_events)
except BaseException:
super().unregister(fileobj)
raise
return key
Example #20
| Source File: selectors.py From Imogen with MIT License | 5 votes |
|
def select(self, timeout=None):
if timeout is None:
timeout = -1
elif timeout <= 0:
timeout = 0
else:
# epoll_wait() has a resolution of 1 millisecond, round away
# from zero to wait *at least* timeout seconds.
timeout = math.ceil(timeout * 1e3) * 1e-3
# epoll_wait() expects `maxevents` to be greater than zero;
# we want to make sure that `select()` can be called when no
# FD is registered.
max_ev = max(len(self._fd_to_key), 1)
ready = []
try:
fd_event_list = self._selector.poll(timeout, max_ev)
except InterruptedError:
return ready
for fd, event in fd_event_list:
events = 0
if event & ~select.EPOLLIN:
events |= EVENT_WRITE
if event & ~select.EPOLLOUT:
events |= EVENT_READ
key = self._key_from_fd(fd)
if key:
ready.append((key, events & key.events))
return ready
Example #21
| Source File: test_epoll.py From Fluid-Designer with GNU General Public License v3.0 | 5 votes |
|
def test_add(self):
server, client = self._connected_pair()
ep = select.epoll(2)
try:
ep.register(server.fileno(), select.EPOLLIN | select.EPOLLOUT)
ep.register(client.fileno(), select.EPOLLIN | select.EPOLLOUT)
finally:
ep.close()
# adding by object w/ fileno works, too.
ep = select.epoll(2)
try:
ep.register(server, select.EPOLLIN | select.EPOLLOUT)
ep.register(client, select.EPOLLIN | select.EPOLLOUT)
finally:
ep.close()
ep = select.epoll(2)
try:
# TypeError: argument must be an int, or have a fileno() method.
self.assertRaises(TypeError, ep.register, object(),
select.EPOLLIN | select.EPOLLOUT)
self.assertRaises(TypeError, ep.register, None,
select.EPOLLIN | select.EPOLLOUT)
# ValueError: file descriptor cannot be a negative integer (-1)
self.assertRaises(ValueError, ep.register, -1,
select.EPOLLIN | select.EPOLLOUT)
# OSError: [Errno 9] Bad file descriptor
self.assertRaises(OSError, ep.register, 10000,
select.EPOLLIN | select.EPOLLOUT)
# registering twice also raises an exception
ep.register(server, select.EPOLLIN | select.EPOLLOUT)
self.assertRaises(OSError, ep.register, server,
select.EPOLLIN | select.EPOLLOUT)
finally:
ep.close()
Example #22
| Source File: selectors.py From Fluid-Designer with GNU General Public License v3.0 | 5 votes |
|
def select(self, timeout=None):
if timeout is None:
timeout = -1
elif timeout <= 0:
timeout = 0
else:
# epoll_wait() has a resolution of 1 millisecond, round away
# from zero to wait *at least* timeout seconds.
timeout = math.ceil(timeout * 1e3) * 1e-3
# epoll_wait() expects `maxevents` to be greater than zero;
# we want to make sure that `select()` can be called when no
# FD is registered.
max_ev = max(len(self._fd_to_key), 1)
ready = []
try:
fd_event_list = self._epoll.poll(timeout, max_ev)
except InterruptedError:
return ready
for fd, event in fd_event_list:
events = 0
if event & ~select.EPOLLIN:
events |= EVENT_WRITE
if event & ~select.EPOLLOUT:
events |= EVENT_READ
key = self._key_from_fd(fd)
if key:
ready.append((key, events & key.events))
return ready
Example #23
| Source File: selectors.py From Fluid-Designer with GNU General Public License v3.0 | 5 votes |
|
def register(self, fileobj, events, data=None):
key = super().register(fileobj, events, data)
epoll_events = 0
if events & EVENT_READ:
epoll_events |= select.EPOLLIN
if events & EVENT_WRITE:
epoll_events |= select.EPOLLOUT
self._epoll.register(key.fd, epoll_events)
return key
Example #24
| Source File: pykms_Selectors.py From py-kms with The Unlicense | 5 votes |
|
def select(self, timeout=None):
if timeout is not None:
if timeout <= 0:
timeout = 0.0
else:
# select.epoll.poll() has a resolution of 1 millisecond
# but luckily takes seconds so we don't need a wrapper
# like PollSelector. Just for better rounding.
timeout = math.ceil(timeout * 1e3) * 1e-3
timeout = float(timeout)
else:
timeout = -1.0 # epoll.poll() must have a float.
# We always want at least 1 to ensure that select can be called
# with no file descriptors registered. Otherwise will fail.
max_events = max(len(self._fd_to_key), 1)
ready = []
fd_events = _syscall_wrapper(self._epoll.poll, True,
timeout=timeout,
maxevents=max_events)
for fd, event_mask in fd_events:
events = 0
if event_mask & ~select.EPOLLIN:
events |= EVENT_WRITE
if event_mask & ~select.EPOLLOUT:
events |= EVENT_READ
key = self._key_from_fd(fd)
if key:
ready.append((key, events & key.events))
return ready
Example #25
| Source File: pykms_Selectors.py From py-kms with The Unlicense | 5 votes |
|
def register(self, fileobj, events, data=None):
key = super(EpollSelector, self).register(fileobj, events, data)
events_mask = 0
if events & EVENT_READ:
events_mask |= select.EPOLLIN
if events & EVENT_WRITE:
events_mask |= select.EPOLLOUT
_syscall_wrapper(self._epoll.register, False, key.fd, events_mask)
return key
Example #26
| Source File: selectors.py From hacktoberfest2018 with GNU General Public License v3.0 | 5 votes |
|
def select(self, timeout=None):
if timeout is not None:
if timeout <= 0:
timeout = 0.0
else:
# select.epoll.poll() has a resolution of 1 millisecond
# but luckily takes seconds so we don't need a wrapper
# like PollSelector. Just for better rounding.
timeout = math.ceil(timeout * 1e3) * 1e-3
timeout = float(timeout)
else:
timeout = -1.0 # epoll.poll() must have a float.
# We always want at least 1 to ensure that select can be called
# with no file descriptors registered. Otherwise will fail.
max_events = max(len(self._fd_to_key), 1)
ready = []
fd_events = _syscall_wrapper(self._epoll.poll, True,
timeout=timeout,
maxevents=max_events)
for fd, event_mask in fd_events:
events = 0
if event_mask & ~select.EPOLLIN:
events |= EVENT_WRITE
if event_mask & ~select.EPOLLOUT:
events |= EVENT_READ
key = self._key_from_fd(fd)
if key:
ready.append((key, events & key.events))
return ready
Example #27
| Source File: selectors.py From hacktoberfest2018 with GNU General Public License v3.0 | 5 votes |
|
def register(self, fileobj, events, data=None):
key = super(EpollSelector, self).register(fileobj, events, data)
events_mask = 0
if events & EVENT_READ:
events_mask |= select.EPOLLIN
if events & EVENT_WRITE:
events_mask |= select.EPOLLOUT
_syscall_wrapper(self._epoll.register, False, key.fd, events_mask)
return key
Example #28
| Source File: selectors.py From hacktoberfest2018 with GNU General Public License v3.0 | 5 votes |
|
def select(self, timeout=None):
if timeout is not None:
if timeout <= 0:
timeout = 0.0
else:
# select.epoll.poll() has a resolution of 1 millisecond
# but luckily takes seconds so we don't need a wrapper
# like PollSelector. Just for better rounding.
timeout = math.ceil(timeout * 1e3) * 1e-3
timeout = float(timeout)
else:
timeout = -1.0 # epoll.poll() must have a float.
# We always want at least 1 to ensure that select can be called
# with no file descriptors registered. Otherwise will fail.
max_events = max(len(self._fd_to_key), 1)
ready = []
fd_events = _syscall_wrapper(self._epoll.poll, True,
timeout=timeout,
maxevents=max_events)
for fd, event_mask in fd_events:
events = 0
if event_mask & ~select.EPOLLIN:
events |= EVENT_WRITE
if event_mask & ~select.EPOLLOUT:
events |= EVENT_READ
key = self._key_from_fd(fd)
if key:
ready.append((key, events & key.events))
return ready
Example #29
| Source File: selectors.py From hacktoberfest2018 with GNU General Public License v3.0 | 5 votes |
|
def register(self, fileobj, events, data=None):
key = super(EpollSelector, self).register(fileobj, events, data)
events_mask = 0
if events & EVENT_READ:
events_mask |= select.EPOLLIN
if events & EVENT_WRITE:
events_mask |= select.EPOLLOUT
_syscall_wrapper(self._epoll.register, False, key.fd, events_mask)
return key
Example #30
| Source File: asyncio.py From pycopia with Apache License 2.0 | 5 votes |
|
def _getflags(self, aiobj):
flags = 0
if aiobj.readable():
flags = EPOLLIN
if aiobj.writable():
flags |= EPOLLOUT
if aiobj.priority():
flags |= EPOLLPRI
return flags
# A poller is itself selectable so may be nested in another Poll
# instance. Therefore, supports the async interface itself.
