Mercurial > libervia-backend
view libervia/backend/tools/async_trigger.py @ 4240:79c8a70e1813
backend, frontend: prepare remote control:
This is a series of changes necessary to prepare the implementation of remote control
feature:
- XEP-0166: add a `priority` attribute to `ApplicationData`: this is needed when several
applications are working in a same session, to know which one must be handled first.
Will be used to make Remote Control have precedence over Call content.
- XEP-0166: `_call_plugins` is now async and is not used with `DeferredList` anymore: the
benefit to have methods called in parallels is very low, and it cause a lot of trouble
as we can't predict order. Methods are now called sequentially so workflow can be
predicted.
- XEP-0167: fix `senders` XMPP attribute <=> SDP mapping
- XEP-0234: preflight acceptance key is now `pre-accepted` instead of `file-accepted`, so
the same key can be used with other jingle applications.
- XEP-0167, XEP-0343: move some method to XEP-0167
- XEP-0353: use new `priority` feature to call preflight methods of applications according
to it.
- frontend (webrtc): refactor the sources/sink handling with a more flexible mechanism
based on Pydantic models. It is now possible to have has many Data Channel as necessary,
to have them in addition to A/V streams, to specify manually GStreamer sources and
sinks, etc.
- frontend (webrtc): rework of the pipeline to reduce latency.
- frontend: new `portal_desktop` method. Screenshare portal handling has been moved there,
and RemoteDesktop portal has been added.
- frontend (webrtc): fix `extract_ufrag_pwd` method.
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author | Goffi <goffi@goffi.org> |
---|---|
date | Sat, 11 May 2024 13:52:41 +0200 |
parents | e11b13418ba6 |
children | 0d7bb4df2343 |
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#!/usr/bin/env python3 # SAT: a jabber client # Copyright (C) 2009-2021 Jérôme Poisson (goffi@goffi.org) # This program is free software: you can redistribute it and/or modify # it under the terms of the GNU Affero General Public License as published by # the Free Software Foundation, either version 3 of the License, or # (at your option) any later version. # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU Affero General Public License for more details. # You should have received a copy of the GNU Affero General Public License # along with this program. If not, see <http://www.gnu.org/licenses/>. """Misc usefull classes""" from typing import Tuple, Any from libervia.backend.core.xmpp import SatXMPPEntity from . import trigger as sync_trigger from . import utils from twisted.internet import defer class TriggerManager(sync_trigger.TriggerManager): """This is a TriggerManager with an new async_point method""" async def async_point( self, point_name: str, *args, **kwargs ) -> bool: """This put a trigger point with potentially async Deferred All the triggers for that point will be run @param point_name: name of the trigger point @param *args: args to transmit to trigger @param *kwargs: kwargs to transmit to trigger if "triggers_no_cancel" is present, it will be popped out when set to True, this argument don't let triggers stop the workflow @return D(bool): True if the action must be continued, False else """ if point_name not in self.__triggers: return True can_cancel = not kwargs.pop('triggers_no_cancel', False) for __, trigger in self.__triggers[point_name]: try: cont = await utils.as_deferred(trigger, *args, **kwargs) if can_cancel and not cont: return False except sync_trigger.SkipOtherTriggers: break return True async def async_return_point( self, point_name: str, *args, **kwargs ) -> Tuple[bool, Any]: """Async version of return_point""" if point_name not in self.__triggers: return True, None for priority, trigger in self.__triggers[point_name]: try: cont, ret_value = await utils.as_deferred(trigger, *args, **kwargs) if not cont: return False, ret_value except sync_trigger.SkipOtherTriggers: break return True, None