本文整理汇总了Python中select.kevent方法的典型用法代码示例。如果您正苦于以下问题：Python select.kevent方法的具体用法？Python select.kevent怎么用？Python select.kevent使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类select的用法示例。
在下文中一共展示了select.kevent方法的6个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: poll
# 需要导入模块: import select [as 别名]
# 或者: from select import kevent [as 别名]
def poll(self, timeout):
kevents = self._kqueue.control(None, 1000, timeout)
events = {}
for kevent in kevents:
fd = kevent.ident
if kevent.filter == select.KQ_FILTER_READ:
events[fd] = events.get(fd, 0) | IOLoop.READ
if kevent.filter == select.KQ_FILTER_WRITE:
if kevent.flags & select.KQ_EV_EOF:
# If an asynchronous connection is refused, kqueue
# returns a write event with the EOF flag set.
# Turn this into an error for consistency with the
# other IOLoop implementations.
# Note that for read events, EOF may be returned before
# all data has been consumed from the socket buffer,
# so we only check for EOF on write events.
events[fd] = IOLoop.ERROR
else:
events[fd] = events.get(fd, 0) | IOLoop.WRITE
if kevent.flags & select.KQ_EV_ERROR:
events[fd] = events.get(fd, 0) | IOLoop.ERROR
return events.items() 示例2: register
# 需要导入模块: import select [as 别名]
# 或者: from select import kevent [as 别名]
def register(self, fileobj, events, data=None):
key = super(KqueueSelector, self).register(fileobj, events, data)
if events & EVENT_READ:
kevent = select.kevent(key.fd,
select.KQ_FILTER_READ,
select.KQ_EV_ADD)
_syscall_wrapper(self._kqueue.control, False, [kevent], 0, 0)
if events & EVENT_WRITE:
kevent = select.kevent(key.fd,
select.KQ_FILTER_WRITE,
select.KQ_EV_ADD)
_syscall_wrapper(self._kqueue.control, False, [kevent], 0, 0)
return key 示例3: unregister
# 需要导入模块: import select [as 别名]
# 或者: from select import kevent [as 别名]
def unregister(self, fileobj):
key = super(KqueueSelector, self).unregister(fileobj)
if key.events & EVENT_READ:
kevent = select.kevent(key.fd,
select.KQ_FILTER_READ,
select.KQ_EV_DELETE)
try:
_syscall_wrapper(self._kqueue.control, False, [kevent], 0, 0)
except SelectorError:
pass
if key.events & EVENT_WRITE:
kevent = select.kevent(key.fd,
select.KQ_FILTER_WRITE,
select.KQ_EV_DELETE)
try:
_syscall_wrapper(self._kqueue.control, False, [kevent], 0, 0)
except SelectorError:
pass
return key 示例4: unregister
# 需要导入模块: import select [as 别名]
# 或者: from select import kevent [as 别名]
def unregister(self, fileobj):
key = super(KqueueSelector, self).unregister(fileobj)
if key.events & EVENT_READ:
kev = select.kevent(key.fd, select.KQ_FILTER_READ,
select.KQ_EV_DELETE)
try:
self._kqueue.control([kev], 0, 0)
except OSError:
# This can happen if the FD was closed since it
# was registered.
pass
if key.events & EVENT_WRITE:
kev = select.kevent(key.fd, select.KQ_FILTER_WRITE,
select.KQ_EV_DELETE)
try:
self._kqueue.control([kev], 0, 0)
except OSError:
# See comment above.
pass
return key 示例5: test_issue30058
# 需要导入模块: import select [as 别名]
# 或者: from select import kevent [as 别名]
def test_issue30058(self):
# changelist must be an iterable
kq = select.kqueue()
a, b = socket.socketpair()
ev = select.kevent(a, select.KQ_FILTER_READ, select.KQ_EV_ADD | select.KQ_EV_ENABLE)
kq.control([ev], 0)
# not a list
kq.control((ev,), 0)
# __len__ is not consistent with __iter__
class BadList:
def __len__(self):
return 0
def __iter__(self):
for i in range(100):
yield ev
kq.control(BadList(), 0)
# doesn't have __len__
kq.control(iter([ev]), 0)
a.close()
b.close()
kq.close() 示例6: _control
# 需要导入模块: import select [as 别名]
# 或者: from select import kevent [as 别名]
def _control(self, fd, events, flags):
kevents = []
if events & self.WRITE:
kevents.append(select.kevent(
fd, filter=select.KQ_FILTER_WRITE, flags=flags))
if events & self.READ or not kevents:
# always read when there is not a write
kevents.append(select.kevent(
fd, filter=select.KQ_FILTER_READ, flags=flags))
# even though control() takes a list, it seems to return
# EINVAL on Mac OS X (10.6) when there is more than one
# event in the list
for kevent in kevents:
self._kqueue.control([kevent], 0)
# localize variable access to minimize overhead