class PollReactor(posixbase.PosixReactorBase, posixbase._PollLikeMixin): (source)
Constructor: PollReactor()
Implements interfaces: twisted.internet.interfaces.IReactorFDSet
A reactor that uses poll(2).
Method | __init__ |
Initialize polling object, file descriptor tracking dictionaries, and the base class. |
Method | add |
Add a FileDescriptor for notification of data available to read. |
Method | add |
Add a FileDescriptor for notification of data available to write. |
Method | do |
Poll the poller for new events. |
Method | get |
Return the list of file descriptors currently monitored for input events by the reactor. |
Method | get |
Return the list file descriptors currently monitored for output events by the reactor. |
Method | remove |
Remove all selectables, and return a list of them. |
Method | remove |
Remove a Selectable for notification of data available to read. |
Method | remove |
Remove a Selectable for notification of data available to write. |
Method | _dict |
Undocumented |
Method | _update |
Register/unregister an fd with the poller. |
Constant | _POLL |
Undocumented |
Instance Variable | _poller |
A select.poll which will be used to check for I/O readiness. |
Instance Variable | _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 ... |
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 | _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 ... |
Inherited from PosixReactorBase
:
Method | adopt |
Add an existing listening SOCK_DGRAM socket to the reactor to monitor for read and write readiness. |
Method | adopt |
No summary |
Method | adopt |
Create a new IListeningPort from an already-initialized socket. |
Method | connect |
Connect a client Protocol to a remote SSL socket. |
Method | connect |
Connect a TCP client. |
Method | connect |
Connect a client protocol to a UNIX socket. |
Method | connect |
Connects a ConnectedDatagramProtocol instance to a path. |
Method | install |
Install a `waker' to allow threads and signals to wake up the IO thread. |
Method | listen |
Connects a given DatagramProtocol to the given numeric UDP port. |
Method | listen |
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. |
Method | listen |
Connects a given protocol factory to the given numeric TCP/IP port. |
Method | listen |
Connects a given DatagramProtocol to the given numeric UDP port. |
Method | listen |
Listen on a UNIX socket. |
Method | listen |
Connects a given DatagramProtocol to the given path. |
Method | spawn |
Spawn a process, with a process protocol. |
Instance Variable | waker |
Undocumented |
Method | _remove |
Remove all readers and writers, and list of removed IReadDescriptor s and IWriteDescriptor s. |
Method | _signals |
Customize reactor signal handling to support child processes on POSIX platforms. |
Method | _waker |
Undocumented |
Class Variable | _supported |
Undocumented |
Instance Variable | _child |
None or a reference to the _SIGCHLDWaker which is used to properly notice child process termination. |
Inherited from _DisconnectSelectableMixin
(via PosixReactorBase
):
Method | _disconnect |
Utility function for disconnecting a selectable. |
Inherited from ReactorBase
(via PosixReactorBase
, _DisconnectSelectableMixin
):
Method | add |
See twisted.internet.interfaces.IReactorCore.addSystemEventTrigger. |
Method | call |
See twisted.internet.interfaces.IReactorFromThreads.callFromThread . |
Method | call |
See twisted.internet.interfaces.IReactorInThreads.callInThread . |
Method | call |
See twisted.internet.interfaces.IReactorTime.callLater. |
Method | call |
See twisted.internet.interfaces.IReactorCore.callWhenRunning. |
Method | crash |
See twisted.internet.interfaces.IReactorCore.crash. |
Method | disconnect |
Disconnect every reader, and writer in the system. |
Method | do |
Do one iteration over the readers and writers which have been added. |
Method | fire |
See twisted.internet.interfaces.IReactorCore.fireSystemEvent. |
Method | get |
See twisted.internet.interfaces.IReactorTime.getDelayedCalls |
Method | get |
See twisted.internet.interfaces.IReactorThreads.getThreadPool . |
Method | iterate |
See twisted.internet.interfaces.IReactorCore.iterate. |
Method | main |
Undocumented |
Method | remove |
See twisted.internet.interfaces.IReactorCore.removeSystemEventTrigger. |
Method | resolve |
Return a Deferred that will resolve a hostname. |
Method | run |
Fire 'startup' System Events, move the reactor to the 'running' state, then run the main loop until it is stopped with stop() or crash(). |
Method | run |
Run all pending timed calls. |
Method | sig |
Handle a SIGBREAK interrupt. |
Method | sig |
Handle a SIGINT interrupt. |
Method | sig |
Handle a SIGTERM interrupt. |
Method | start |
Method called when reactor starts: do some initialization and fire startup events. |
Method | stop |
See twisted.internet.interfaces.IReactorCore.stop. |
Method | suggest |
See twisted.internet.interfaces.IReactorThreads.suggestThreadPoolSize . |
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 | wake |
Wake up the event loop. |
Class Variable | __name__ |
Undocumented |
Class Variable | installed |
Undocumented |
Class Variable | seconds |
Get the current time in seconds. |
Instance Variable | running |
See IReactorCore.running |
Instance Variable | thread |
Undocumented |
Instance Variable | threadpool |
Undocumented |
Instance Variable | threadpool |
Undocumented |
Instance Variable | using |
Undocumented |
Method | _add |
Add a read descriptor which is part of the implementation of the reactor itself. |
Method | _cancel |
Undocumented |
Method | _init |
Create the threadpool accessible with callFromThread. |
Method | _init |
Undocumented |
Method | _insert |
Undocumented |
Method | _make |
Get an appropriate signal handling object. |
Method | _move |
Undocumented |
Method | _really |
Method called to transition to the running state. This should happen in the during startup event trigger phase. |
Method | _remove |
Remove a read descriptor which is part of the implementation of the reactor itself. |
Method | _stop |
Stop the reactor threadpool. This method is only valid if there is currently a threadpool (created by _initThreadPool ). It is not intended to be called directly; instead, it will be called by a shutdown trigger created in ... |
Method | _uninstall |
Undocumented |
Class Variable | _lock |
Undocumented |
Instance Variable | _cancellations |
Undocumented |
Instance Variable | _event |
Undocumented |
Instance Variable | _exit |
See _ISupportsExitSignalCapturing._exitSignal |
Instance Variable | _install |
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 |
Instance Variable | _internal |
Undocumented |
Instance Variable | _just |
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... |
Instance Variable | _new |
Undocumented |
Instance Variable | _pending |
Undocumented |
Instance Variable | _register |
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 | _signals |
An object which knows how to install and uninstall the reactor's signal-handling behavior. |
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. |
Instance Variable | _started |
Undocumented |
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. |
Instance Variable | _threadpool |
Undocumented |
Inherited from PluggableResolverMixin
(via PosixReactorBase
, _DisconnectSelectableMixin
, ReactorBase
):
Method | install |
See IReactorPluggableNameResolver . |
Method | install |
See IReactorPluggableResolver . |
Instance Variable | resolver |
The installed IResolverSimple . |
Property | name |
Implementation of read-only IReactorPluggableNameResolver.nameResolver . |
Instance Variable | _name |
The installed IHostnameResolver . |
Inherited from _PollLikeMixin
(via PosixReactorBase
, _DisconnectSelectableMixin
, ReactorBase
, PluggableResolverMixin
):
Method | _do |
fd is available for read or write, do the work and raise errors if necessary. |
Return the list of file descriptors currently monitored for input events by the reactor.
Returns | |
the list of file descriptors monitored for input events. |
Return the list file descriptors currently monitored for output events by the reactor.
Returns | |
the list of file descriptors monitored for output events. |
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.
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.
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.