twisted.internet.kqreactor.KQueueReactor(posixbase.PosixReactorBase)
class documentationtwisted.internet.kqreactor
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Implements interfaces: twisted.internet.interfaces.IReactorDaemonize, twisted.internet.interfaces.IReactorFDSet
A reactor that uses kqueue(2)/kevent(2) and relies on Python 2.6 or higher which has built in support for kqueue in the select module.
Method | __init__ | Initialize kqueue object, file descriptor tracking dictionaries, and the base class. |
Method | beforeDaemonize | Implement IReactorDaemonize.beforeDaemonize . |
Method | afterDaemonize | Implement IReactorDaemonize.afterDaemonize . |
Method | addReader | Implement IReactorFDSet.addReader . |
Method | addWriter | Implement IReactorFDSet.addWriter . |
Method | removeReader | Implement IReactorFDSet.removeReader . |
Method | removeWriter | Implement IReactorFDSet.removeWriter . |
Method | removeAll | Implement IReactorFDSet.removeAll . |
Method | getReaders | Implement IReactorFDSet.getReaders . |
Method | getWriters | Implement IReactorFDSet.getWriters . |
Method | doKEvent | Poll the kqueue for new events. |
Instance Variable | _kq | A kqueue which will be used to check for I/O readiness. |
Instance Variable | _impl | The implementation of _IKQueue
to use. |
Instance Variable | _selectables | A dictionary mapping integer file descriptors to instances of FileDescriptor
which have been registered with the reactor. All FileDescriptor s
which are currently receiving read or write readiness notifications will be
present as values in this dictionary. |
Instance Variable | _reads | A set containing integer file descriptors. Values in this set will be
registered with _kq for read readiness notifications which
will be dispatched to the corresponding FileDescriptor
instances in _selectables . |
Instance Variable | _writes | A set containing integer file descriptors. Values in this set will be
registered with _kq for write readiness notifications which
will be dispatched to the corresponding FileDescriptor
instances in _selectables . |
Method | _updateRegistration | Private method for changing kqueue registration on a given FD filtering for events given filter/op. This will never block and returns nothing. |
Method | _doWriteOrRead | Private method called when a FD is ready for reading, writing or was lost. Do the work and raise errors where necessary. |
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 | Connect a client protocol to a UNIX socket. |
Method | listenUNIX | Listen on a UNIX socket. |
Method | listenUNIXDatagram | Connects a given DatagramProtocol
to the given path. |
Method | connectUNIXDatagram | Connects a ConnectedDatagramProtocol
instance to a path. |
Method | adoptStreamPort | Create a new IListeningPort
from an already-initialized socket. |
Method | adoptStreamConnection | |
Method | adoptDatagramPort | Add an existing listening SOCK_DGRAM socket to the reactor to monitor for read and write readiness. |
Method | listenTCP | Connects a given protocol factory to the given numeric TCP/IP port. |
Method | connectTCP | Connect a TCP client. |
Method | connectSSL | Connect a client Protocol to a remote SSL socket. |
Method | listenSSL | Connects a given protocol factory to the given numeric TCP/IP port. The connection is a SSL one, using contexts created by the context factory. |
Instance Variable | _childWaker | None
or a reference to the _SIGCHLDWaker
which is used to properly notice child process termination. |
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 IReadDescriptor s
and IWriteDescriptor s. |
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 |
Instance Variable | _installSignalHandlers | A flag which indicates whether any signal handlers will be installed during
startup. This includes handlers for SIGCHLD to monitor child processes,
and SIGINT, SIGTERM, and SIGBREAK to stop the reactor. (type: bool ) |
Method | _reallyStartRunning | Extend the base implementation by also installing signal handlers, if
self._installSignalHandlers is true. |
Inherited from _DisconnectSelectableMixin (via PosixReactorBase):
Method | _disconnectSelectable | Utility function for disconnecting a selectable. |
Inherited from ReactorBase (via PosixReactorBase):
Instance Variable | running | See IReactorCore.running |
Method | installResolver | See IReactorPluggableResolver . |
Method | installNameResolver | See IReactorPluggableNameResolver . |
Method | nameResolver | Implementation of read-only IReactorPluggableNameResolver.nameResolver . |
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 | getDelayedCalls | No summary |
Method | timeout | Determine the longest time the reactor may sleep (waiting on I/O notification, perhaps) before it must wake up to service a time-related event. |
Method | runUntilCurrent | Run all pending timed calls. |
Method | callFromThread 0 | See twisted.internet.interfaces.IReactorFromThreads.callFromThread . |
Method | getThreadPool | See twisted.internet.interfaces.IReactorThreads.getThreadPool . |
Method | callInThread | See twisted.internet.interfaces.IReactorInThreads.callInThread . |
Method | suggestThreadPoolSize | See twisted.internet.interfaces.IReactorThreads.suggestThreadPoolSize . |
Method | callFromThread | Cause a function to be executed by the reactor thread. |
Instance Variable | _stopped | A flag which is true between paired calls to reactor.run and
reactor.stop . This should be replaced with an explicit state
machine. (type: bool ) |
Instance Variable | _justStopped | A flag which is true between the time reactor.stop is called
and the time the shutdown system event is fired. This is used to determine
whether that event should be fired after each iteration through the
mainloop. This should be replaced with an explicit state machine. (type: bool ) |
Instance Variable | _started | A flag which is true from the time reactor.run is called until
the time reactor.run returns. This is used to prevent calls
to reactor.run on a running reactor. This should be replaced
with an explicit state machine. (type: bool ) |
Instance Variable | _registerAsIOThread | A flag controlling whether the reactor will register the thread it is
running in as the I/O thread when it starts. If True ,
registration will be done, otherwise it will not be. |
Instance Variable | _exitSignal | See _ISupportsExitSignalCapturing._exitSignal |
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 |
FileDescriptor
which have been registered with the reactor. All FileDescriptor
s
which are currently receiving read or write readiness notifications will be
present as values in this dictionary.
_kq
for read readiness notifications which
will be dispatched to the corresponding FileDescriptor
instances in _selectables
.
_kq
for write readiness notifications which
will be dispatched to the corresponding FileDescriptor
instances in _selectables
.
Initialize kqueue object, file descriptor tracking dictionaries, and the base class.
See:
Parameters | _kqueueImpl | The implementation of _IKQueue
to use. A hook for testing. |
Private method for changing kqueue registration on a given FD filtering for events given filter/op. This will never block and returns nothing.
Private method called when a FD is ready for reading, writing or was lost. Do the work and raise errors where necessary.