diff options
Diffstat (limited to 'synapse')
| -rw-r--r-- | synapse/config/logger.py | 8 | ||||
| -rw-r--r-- | synapse/handlers/room_member.py | 11 | ||||
| -rw-r--r-- | synapse/rest/client/transactions.py | 6 | ||||
| -rw-r--r-- | synapse/util/debug.py | 71 |
4 files changed, 11 insertions, 85 deletions
diff --git a/synapse/config/logger.py b/synapse/config/logger.py index 63e69a7e0c..77ded0ad25 100644 --- a/synapse/config/logger.py +++ b/synapse/config/logger.py @@ -22,7 +22,6 @@ import yaml from string import Template import os import signal -from synapse.util.debug import debug_deferreds DEFAULT_LOG_CONFIG = Template(""" @@ -71,8 +70,6 @@ class LoggingConfig(Config): self.verbosity = config.get("verbose", 0) self.log_config = self.abspath(config.get("log_config")) self.log_file = self.abspath(config.get("log_file")) - if config.get("full_twisted_stacktraces"): - debug_deferreds() def default_config(self, config_dir_path, server_name, **kwargs): log_file = self.abspath("homeserver.log") @@ -88,11 +85,6 @@ class LoggingConfig(Config): # A yaml python logging config file log_config: "%(log_config)s" - - # Stop twisted from discarding the stack traces of exceptions in - # deferreds by waiting a reactor tick before running a deferred's - # callbacks. - # full_twisted_stacktraces: true """ % locals() def read_arguments(self, args): diff --git a/synapse/handlers/room_member.py b/synapse/handlers/room_member.py index 8a76469b77..b2806555cf 100644 --- a/synapse/handlers/room_member.py +++ b/synapse/handlers/room_member.py @@ -232,11 +232,12 @@ class RoomMemberHandler(BaseHandler): errcode=Codes.BAD_STATE ) - same_content = content == old_state.content - same_membership = old_membership == effective_membership_state - same_sender = requester.user.to_string() == old_state.sender - if same_sender and same_membership and same_content: - defer.returnValue(old_state) + if old_state: + same_content = content == old_state.content + same_membership = old_membership == effective_membership_state + same_sender = requester.user.to_string() == old_state.sender + if same_sender and same_membership and same_content: + defer.returnValue(old_state) is_host_in_room = yield self._is_host_in_room(current_state_ids) diff --git a/synapse/rest/client/transactions.py b/synapse/rest/client/transactions.py index 351170edbc..efa77b8c51 100644 --- a/synapse/rest/client/transactions.py +++ b/synapse/rest/client/transactions.py @@ -86,7 +86,11 @@ class HttpTransactionCache(object): pass # execute the function instead. deferred = fn(*args, **kwargs) - observable = ObservableDeferred(deferred) + + # We don't add an errback to the raw deferred, so we ask ObservableDeferred + # to swallow the error. This is fine as the error will still be reported + # to the observers. + observable = ObservableDeferred(deferred, consumeErrors=True) self.transactions[txn_key] = (observable, self.clock.time_msec()) return observable.observe() diff --git a/synapse/util/debug.py b/synapse/util/debug.py deleted file mode 100644 index dc49162e6a..0000000000 --- a/synapse/util/debug.py +++ /dev/null @@ -1,71 +0,0 @@ -# -*- coding: utf-8 -*- -# Copyright 2015, 2016 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 functools import wraps -from synapse.util.logcontext import LoggingContext, PreserveLoggingContext - - -def debug_deferreds(): - """Cause all deferreds to wait for a reactor tick before running their - callbacks. This increases the chance of getting a stack trace out of - a defer.inlineCallback since the code waiting on the deferred will get - a chance to add an errback before the deferred runs.""" - - # Helper method for retrieving and restoring the current logging context - # around a callback. - def with_logging_context(fn): - context = LoggingContext.current_context() - - def restore_context_callback(x): - with PreserveLoggingContext(context): - return fn(x) - - return restore_context_callback - - # We are going to modify the __init__ method of defer.Deferred so we - # need to get a copy of the old method so we can still call it. - old__init__ = defer.Deferred.__init__ - - # We need to create a deferred to bounce the callbacks through the reactor - # but we don't want to add a callback when we create that deferred so we - # we create a new type of deferred that uses the old __init__ method. - # This is safe as long as the old __init__ method doesn't invoke an - # __init__ using super. - class Bouncer(defer.Deferred): - __init__ = old__init__ - - # We'll add this as a callback to all Deferreds. Twisted will wait until - # the bouncer deferred resolves before calling the callbacks of the - # original deferred. - def bounce_callback(x): - bouncer = Bouncer() - reactor.callLater(0, with_logging_context(bouncer.callback), x) - return bouncer - - # We'll add this as an errback to all Deferreds. Twisted will wait until - # the bouncer deferred resolves before calling the errbacks of the - # original deferred. - def bounce_errback(x): - bouncer = Bouncer() - reactor.callLater(0, with_logging_context(bouncer.errback), x) - return bouncer - - @wraps(old__init__) - def new__init__(self, *args, **kargs): - old__init__(self, *args, **kargs) - self.addCallbacks(bounce_callback, bounce_errback) - - defer.Deferred.__init__ = new__init__ |