view sat/bridge/bridge_constructor/constructors/pb/constructor.py @ 3153:2c7b42f53e9a

core (xmpp): avoid starting several clients at the same time: a check is done to avoid running startConnection several times at once, which would lead to the creation of several SatXMPPEntity instances at the same time, resulting in many issues. If startConnection is called while a previous one is not finished yet, a CancelError is now raised.
author Goffi <goffi@goffi.org>
date Mon, 03 Feb 2020 13:46:24 +0100
parents 559a625a236b
children f2e30aa031e9
line wrap: on
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#!/usr/bin/env python3


# SàT: a XMPP client
# Copyright (C) 2009-2020 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/>.

from sat.bridge.bridge_constructor import base_constructor


class pbConstructor(base_constructor.Constructor):
    NAME = "pb"
    CORE_TEMPLATE = "pb_core_template.py"
    CORE_DEST = "pb.py"
    CORE_FORMATS = {
        "signals": """\
    def {name}(self, {args}):
        {debug}self.sendSignal("{name}", {args_no_def})\n"""
    }

    FRONTEND_TEMPLATE = "pb_frontend_template.py"
    FRONTEND_DEST = CORE_DEST
    FRONTEND_FORMATS = {
        "methods": """\
    def {name}(self{args_comma}{args}, callback=None, errback=None):
        {debug}d = self.root.callRemote("{name}"{args_comma}{args_no_def})
        if callback is not None:
            d.addCallback({callback})
        if errback is None:
            errback = self._generic_errback
        d.addErrback(errback)\n""",
        "async_methods": """\
    def {name}(self{args_comma}{args}):
        {debug}d = self.root.callRemote("{name}"{args_comma}{args_no_def})
        d.addErrback(self._errback)
        return d.asFuture(asyncio.get_event_loop())\n""",
    }

    def core_completion_signal(self, completion, function, default, arg_doc, async_):
        completion["args_no_def"] = self.getArguments(function["sig_in"], name=arg_doc)
        completion["debug"] = (
            ""
            if not self.args.debug
            else 'log.debug ("%s")\n%s' % (completion["name"], 8 * " ")
        )

    def frontend_completion_method(self, completion, function, default, arg_doc, async_):
        completion.update(
            {
                "args_comma": ", " if function["sig_in"] else "",
                "args_no_def": self.getArguments(function["sig_in"], name=arg_doc),
                "callback": "callback"
                if function["sig_out"]
                else "lambda __: callback()",
                "debug": ""
                if not self.args.debug
                else 'log.debug ("%s")\n%s' % (completion["name"], 8 * " "),
            }
        )