Class t.i.d.PosixReactorBase(ReactorBase):

Install the signal handlers for the Twisted event loop.

Reap all processes on SIGCHLD.

This gets called on SIGCHLD. We do no processing inside a signal handler, as the calls we make here could occur between any two python bytecode instructions. Deferring processing to the next eventloop round prevents us from violating the state constraints of arbitrary classes.

Utility function for disconnecting a selectable.

Supports half-close notification, isRead should be boolean indicating whether error resulted from doRead().

Install a `waker' to allow threads and signals to wake up the IO thread.

We use the self-pipe trick (http://cr.yp.to/docs/selfpipe.html) to wake the reactor. On Windows we use a pair of sockets.

Check for valid arguments and environment to spawnProcess.

Returns

A two element tuple giving values to use when creating the process. The first element of the tuple is a list of str giving the values for argv of the child process. The second element of the tuple is either None if env was None or a dict mapping str environment keys to str environment values.

Connects a given DatagramProtocol to the given numeric UDP port.

Returns

object conforming to IListeningPort.

DEPRECATED.

Connects a ConnectedDatagramProtocol instance to a UDP port.

Connects a given DatagramProtocol to the given numeric UDP port.

EXPERIMENTAL.

Returns

object conforming to IListeningPort.

Connects a given DatagramProtocol to the given path.

EXPERIMENTAL.

Returns

object conforming to IListeningPort.

Connects a ConnectedDatagramProtocol instance to a path.

EXPERIMENTAL.

Start an instance of the given portType listening.

Parameters	portType	The object given by portType(*args, **kw) will be started listening. (type: type which implements IListeningPort )
Returns	an object which provides IListeningPort.

Start an instance of the given connectorType connecting.

Parameters	connectorType	The object given by connectorType(*args, **kw) will be started connecting. (type: type which implements IConnector )
Returns	An object which provides IConnector.

Remove all readers and writers, and return list of Selectables.

Meant for calling from subclasses, to implement removeAll, like:

 def removeAll(self):
     return self._removeAll(reads, writes)

where reads and writes are iterables.