twisted.internet.posixbase.PosixReactorBase : API documentation

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	adoptStreamPort	Create a new `IListeningPort` from an already-initialized socket.
Method	adoptStreamConnection
Method	listenTCP
Method	connectTCP
Method	connectSSL
Method	listenSSL
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:

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:

Method

_disconnectSelectable

Utility function for disconnecting a selectable.

Inherited from ReactorBase:

Instance Variable	running	See `IReactorCore.running`
Method	__init__	Undocumented
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	addReader	Undocumented
Method	addWriter	Undocumented
Method	removeReader	Undocumented
Method	removeWriter	Undocumented
Method	removeAll	Undocumented
Method	getReaders	Undocumented
Method	getWriters	Undocumented
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.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.
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.
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

def spawnProcess(self, processProtocol, executable, args=(), env={}, path=None, uid=None, gid=None, usePTY=0, childFDs=None): (source)

from twisted.internet.interfaces.IReactorProcess

Spawn a process, with a process protocol.

Parameters	processProtocol	An object which will be notified of all events related to the created process. (type: `IProcessProtocol` provider)
	executable	the file name to spawn - the full path should be used.
	args	the command line arguments to pass to the process; a sequence of strings. The first string should be the executable's name.
	env	the environment variables to pass to the child process. The resulting behavior varies between platforms. If `env` is not set: On POSIX: pass an empty environment. On Windows: pass `os.environ`. `env` is `None`: On POSIX: pass `os.environ`. On Windows: pass `os.environ`. `env` is a `dict`: On POSIX: pass the key/value pairs in `env` as the complete environment. On Windows: update `os.environ` with the key/value pairs in the `dict` before passing it. As a consequence of bug #1640, passing keys with empty values in an effort to unset environment variables won't unset them. (type: a `dict` mapping `str` to `str`, or `None`.)
	path	the path to run the subprocess in - defaults to the current directory.
	uid	user ID to run the subprocess as. (Only available on POSIX systems.)
	gid	group ID to run the subprocess as. (Only available on POSIX systems.)
	usePTY	if true, run this process in a pseudo-terminal. optionally a tuple of `(masterfd, slavefd, ttyname)`, in which case use those file descriptors. (Not available on all systems.)
	childFDs	A dictionary mapping file descriptors in the new child process to an integer or to the string 'r' or 'w'. If the value is an integer, it specifies a file descriptor in the parent process which will be mapped to a file descriptor (specified by the key) in the child process. This is useful for things like inetd and shell-like file redirection. If it is the string 'r', a pipe will be created and attached to the child at that file descriptor: the child will be able to write to that file descriptor and the parent will receive read notification via the `IProcessProtocol.childDataReceived` callback. This is useful for the child's stdout and stderr. If it is the string 'w', similar setup to the previous case will occur, with the pipe being readable by the child instead of writeable. The parent process can write to that file descriptor using `IProcessTransport.writeToChild`. This is useful for the child's stdin. If childFDs is not passed, the default behaviour is to use a mapping that opens the usual stdin/stdout/stderr pipes.
Returns	An object which provides `IProcessTransport`.
Raises	OSError	Raised with errno `EAGAIN` or `ENOMEM` if there are insufficient system resources to create a new process.
See Also	`twisted.internet.protocol.ProcessProtocol`

t.i.p.PosixReactorBase(_SignalReactorMixin, _DisconnectSelectableMixin, ReactorBase) : class documentation