t.i.p.PollReactor(posixbase.PosixReactorBase) : class documentation

Implements interfaces: twisted.internet.interfaces.IReactorFDSet

A reactor that uses poll(2).

Instance Variables	_poller	A poll which will be used to check for I/O readiness.
	_selectables	A dictionary mapping integer file descriptors to instances of FileDescriptor which have been registered with the reactor. All FileDescriptors which are currently receiving read or write readiness notifications will be present as values in this dictionary.
	_reads	A dictionary mapping integer file descriptors to arbitrary values (this is essentially a set). Keys in this dictionary will be registered with _poller for read readiness notifications which will be dispatched to the corresponding FileDescriptor instances in _selectables.
	_writes	A dictionary mapping integer file descriptors to arbitrary values (this is essentially a set). Keys in this dictionary will be registered with _poller for write readiness notifications which will be dispatched to the corresponding FileDescriptor instances in _selectables.

Method	__init__	Initialize polling object, file descriptor tracking dictionaries, and the base class.
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 Selectable for notification of data available to read.
Method	removeWriter	Remove a Selectable for notification of data available to write.
Method	removeAll	Remove all selectables, and return a list of them.
Method	doPoll	Poll the poller for new events.
Method	getReaders	Return the list of file descriptors currently monitored for input events by the reactor.
Method	getWriters	Return the list file descriptors currently monitored for output events by the reactor.
Method	_updateRegistration	Register/unregister an fd with the poller.
Method	_dictRemove	Undocumented
Method	_doReadOrWrite	Undocumented

Inherited from PosixReactorBase:

Method	installWaker	Install a `waker' to allow threads and signals to wake up the IO thread.
Method	spawnProcess	Spawn a process, with a process protocol.
Method	listenUDP	Connects a given DatagramProtocol to the given numeric UDP port.
Method	listenMulticast	Connects a given DatagramProtocol to the given numeric UDP port.
Method	connectUNIX
Method	listenUNIX
Method	listenUNIXDatagram	Connects a given DatagramProtocol to the given path.
Method	connectUNIXDatagram	Connects a ConnectedDatagramProtocol instance to a path.
Method	listenTCP
Method	connectTCP
Method	connectSSL
Method	listenSSL
Method	listenWith	Undocumented
Method	connectWith	Undocumented
Method	_disconnectSelectable	Utility function for disconnecting a selectable.
Method	_handleSignals	Extend the basic signal handling logic to also support handling SIGCHLD to know when to try to reap child processes.
Method	_uninstallHandler	If a child waker was created and installed, uninstall it now.
Method	_removeAll	Remove all readers and writers, and list of removed IReadDescriptors and IWriteDescriptors.

Inherited from _SignalReactorMixin (via PosixReactorBase):

Method	startRunning	Extend the base implementation in order to remember whether signal handlers should be installed later.
Method	run	Undocumented
Method	mainLoop	Undocumented
Method	_reallyStartRunning	Extend the base implementation by also installing signal handlers, if self._installSignalHandlers is true.

Inherited from ReactorBase (via PosixReactorBase):

Method	installResolver	Set the internal resolver to use to for name lookups.
Method	wakeUp	Wake up the event loop.
Method	doIteration	Do one iteration over the readers and writers which have been added.
Method	resolve	Return a Deferred that will resolve a hostname.
Method	stop	See twisted.internet.interfaces.IReactorCore.stop.
Method	crash	See twisted.internet.interfaces.IReactorCore.crash.
Method	sigInt	Handle a SIGINT interrupt.
Method	sigBreak	Handle a SIGBREAK interrupt.
Method	sigTerm	Handle a SIGTERM interrupt.
Method	disconnectAll	Disconnect every reader, and writer in the system.
Method	iterate	See twisted.internet.interfaces.IReactorCore.iterate.
Method	fireSystemEvent	See twisted.internet.interfaces.IReactorCore.fireSystemEvent.
Method	addSystemEventTrigger	See twisted.internet.interfaces.IReactorCore.addSystemEventTrigger.
Method	removeSystemEventTrigger	See twisted.internet.interfaces.IReactorCore.removeSystemEventTrigger.
Method	callWhenRunning	See twisted.internet.interfaces.IReactorCore.callWhenRunning.
Method	startRunning	Method called when reactor starts: do some initialization and fire startup events.
Method	callLater	See twisted.internet.interfaces.IReactorTime.callLater.
Method	cancelCallLater	See twisted.internet.interfaces.IReactorTime.cancelCallLater.
Method	getDelayedCalls	No summary
Method	timeout	Undocumented
Method	runUntilCurrent	Run all pending timed calls.
Method	callFromThread 0	See twisted.internet.interfaces.IReactorThreads.callFromThread.
Method	getThreadPool	See twisted.internet.interfaces.IReactorThreads.getThreadPool.
Method	callInThread	See twisted.internet.interfaces.IReactorThreads.callInThread.
Method	suggestThreadPoolSize	See twisted.internet.interfaces.IReactorThreads.suggestThreadPoolSize.
Method	callFromThread	Cause a function to be executed by the reactor thread.
Method	_reallyStartRunning	Method called to transition to the running state. This should happen in the during startup event trigger phase.
Method	_moveCallLaterSooner	Undocumented
Method	_cancelCallLater	Undocumented
Method	_insertNewDelayedCalls	Undocumented
Method	_checkProcessArgs	Check for valid arguments and environment to spawnProcess.
Method	_initThreads	Undocumented
Method	_initThreadPool	Create the threadpool accessible with callFromThread.
Method	_stopThreadPool	No summary