Current File : //usr/lib64/python2.7/site-packages/tornado/platform/twisted.pyo
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l) m* Z* d d l+ m, Z, d d l- m. Z. m/ Z/ d d l( m0 Z0 d d l1 m2 Z2 e! e � d e3 f d � � Y� Z4 e! e e � d e f d � � Y� Z5 d e5 f d � � YZ6 d d � Z8 e! e e � d e3 f d � � Y� Z9 d e& j: j0 f d � � YZ; d e, f d � � YZ< e= e' j> d � r�e' j> j? e � d � � Z@ n d S(! s Bridges between the Twisted reactor and Tornado IOLoop.
This module lets you run applications and libraries written for
Twisted in a Tornado application. It can be used in two modes,
depending on which library's underlying event loop you want to use.
This module has been tested with Twisted versions 11.0.0 and newer.
Twisted on Tornado
------------------
`TornadoReactor` implements the Twisted reactor interface on top of
the Tornado IOLoop. To use it, simply call `install` at the beginning
of the application::
import tornado.platform.twisted
tornado.platform.twisted.install()
from twisted.internet import reactor
When the app is ready to start, call `IOLoop.current().start()`
instead of `reactor.run()`.
It is also possible to create a non-global reactor by calling
`tornado.platform.twisted.TornadoReactor(io_loop)`. However, if
the `IOLoop` and reactor are to be short-lived (such as those used in
unit tests), additional cleanup may be required. Specifically, it is
recommended to call::
reactor.fireSystemEvent('shutdown')
reactor.disconnectAll()
before closing the `IOLoop`.
Tornado on Twisted
------------------
`TwistedIOLoop` implements the Tornado IOLoop interface on top of the Twisted
reactor. Recommended usage::
from tornado.platform.twisted import TwistedIOLoop
from twisted.internet import reactor
TwistedIOLoop().install()
# Set up your tornado application as usual using `IOLoop.instance`
reactor.run()
`TwistedIOLoop` always uses the global Twisted reactor.
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Since it is intended to be used in applications where the top-level
event loop is ``io_loop.start()`` rather than ``reactor.run()``,
it is implemented a little differently than other Twisted reactors.
We override `mainLoop` instead of `doIteration` and must implement
timed call functionality on top of `IOLoop.add_timeout` rather than
using the implementation in `PosixReactorBase`.
.. versionchanged:: 4.1
The ``io_loop`` argument is deprecated.
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.. versionchanged:: 4.1
The ``io_loop`` argument is deprecated.
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s� IOLoop implementation that runs on Twisted.
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`TwistedIOLoops` in the same process, you must pass a unique reactor
when constructing each one.
Not compatible with `tornado.process.Subprocess.set_exit_callback`
because the ``SIGCHLD`` handlers used by Tornado and Twisted conflict
with each other.
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t TwistedResolverc B� s/ e Z d Z d d � Z e j d d � � Z RS( s` Twisted-based asynchronous resolver.
This is a non-blocking and non-threaded resolver. It is
recommended only when threads cannot be used, since it has
limitations compared to the standard ``getaddrinfo``-based
`~tornado.netutil.Resolver` and
`~tornado.netutil.ThreadedResolver`. Specifically, it returns at
most one result, and arguments other than ``host`` and ``family``
are ignored. It may fail to resolve when ``family`` is not
``socket.AF_UNSPEC``.
Requires Twisted 12.1 or newer.
.. versionchanged:: 4.1
The ``io_loop`` argument is deprecated.
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