t.i.e._ContinuousPolling(posixbase._PollLikeMixin, posixbase._DisconnectSelectableMixin) : class documentation

Schedule reads and writes based on the passage of time, rather than notification.

This is useful for supporting polling filesystem files, which epoll(7) does not support.

The implementation uses posixbase._PollLikeMixin, which is a bit hacky, but re-implementing and testing the relevant code yet again is unappealing.

Method	__init__	Undocumented
Method	iterate	Call doRead and doWrite on all readers and writers respectively.
Method	addReader	Add a FileDescriptor for notification of data available to read.
Method	addWriter	Add a FileDescriptor for notification of data available to write.
Method	removeReader	Remove a FileDescriptor from notification of data available to read.
Method	removeWriter	Remove a FileDescriptor from notification of data available to write.
Method	removeAll	Remove all readers and writers.
Method	getReaders	Return a list of the readers.
Method	getWriters	Return a list of the writers.
Method	isReading	Checks if the file descriptor is currently being observed for read readiness.
Method	isWriting	Checks if the file descriptor is currently being observed for write readiness.
Instance Variable	_reactor	The EPollReactor that is using this instance.
Instance Variable	_loop	A LoopingCall that drives the polling, or None.
Instance Variable	_readers	A set of FileDescriptor objects that should be read from.
Instance Variable	_writers	A set of FileDescriptor objects that should be written to.
Method	_checkLoop	Start or stop a LoopingCall based on whether there are readers and writers.

Inherited from _PollLikeMixin:

Method

_doReadOrWrite

fd is available for read or write, do the work and raise errors if necessary.

Inherited from _DisconnectSelectableMixin:

Method

_disconnectSelectable

Utility function for disconnecting a selectable.