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# -*- coding: utf-8 -*-
# Copyright 2014, 2015 OpenMarket Ltd
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from twisted.internet import defer, reactor
from .logcontext import PreserveLoggingContext
@defer.inlineCallbacks
def sleep(seconds):
d = defer.Deferred()
reactor.callLater(seconds, d.callback, seconds)
with PreserveLoggingContext():
yield d
def run_on_reactor():
""" This will cause the rest of the function to be invoked upon the next
iteration of the main loop
"""
return sleep(0)
def time_bound_deferred(given_deferred, clock, time_out):
ret_deferred = defer.Deferred()
def timed_out():
if not given_deferred.called:
given_deferred.cancel()
ret_deferred.errback(RuntimeError("Timed out"))
timer = clock.call_later(time_out, timed_out)
def succeed(result):
clock.cancel_call_later(timer)
ret_deferred.callback(result)
given_deferred.addCallback(succeed)
given_deferred.addErrback(ret_deferred.errback)
return ret_deferred
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