twisted.internet.epollreactor.EPollReactor(posixbase.PosixReactorBase, posixbase._PollLikeMixin)
class documentationtwisted.internet.epollreactor
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Implements interfaces: twisted.internet.interfaces.IReactorFDSet
A reactor that uses epoll(7).
Method | __init__ | Initialize epoll 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 | 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 | doPoll | Poll the poller for new events. |
Instance Variable | _poller | A epoll which will be used to check for I/O readiness. |
Instance Variable | _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. |
Instance Variable | _reads | A set containing integer file descriptors. Values in this set will be
registered with _poller 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 _poller for write readiness notifications
which will be dispatched to the corresponding FileDescriptor
instances in _selectables . |
Instance Variable | _continuousPolling | A _ContinuousPolling
instance, used to handle file descriptors (e.g. filesystem files) that are
not supported by epoll(7) . |
Method | _add | Private method for adding a descriptor from the event loop. |
Method | _remove | Private method for removing a descriptor from the event loop. |
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 |
Inherited from _PollLikeMixin:
Method | _doReadOrWrite | fd is available for read or write, do the work and raise errors if necessary. |
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.
_poller
for read readiness notifications which
will be dispatched to the corresponding FileDescriptor
instances in _selectables
.
_poller
for write readiness notifications
which will be dispatched to the corresponding FileDescriptor
instances in _selectables
.
_ContinuousPolling
instance, used to handle file descriptors (e.g. filesystem files) that are
not supported by epoll(7)
.
Initialize epoll object, file descriptor tracking dictionaries, and the base class.
Private method for adding a descriptor from the event loop.
It takes care of adding it if new or modifying it if already added for another state (read -> read/write for example).
Add a FileDescriptor for notification of data available to read.
Add a FileDescriptor for notification of data available to write.
Private method for removing a descriptor from the event loop.
It does the inverse job of _add, and also add a check in case of the fd has gone away.
Remove a Selectable for notification of data available to read.
Remove a Selectable for notification of data available to write.
Return the list of file descriptors currently monitored for input events by the reactor.
Returns | the list of file descriptors monitored for input events. (type: list of IReadDescriptor ) |
Return the list file descriptors currently monitored for output events by the reactor.
Returns | the list of file descriptors monitored for output events. (type: list of IWriteDescriptor ) |