mirror of
https://mau.dev/maunium/synapse.git
synced 2024-10-01 01:36:05 -04:00
123 lines
3.8 KiB
Python
123 lines
3.8 KiB
Python
# -*- coding: utf-8 -*-
|
|
# Copyright 2017 New Vector 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.
|
|
|
|
import gc
|
|
import logging
|
|
import sys
|
|
|
|
try:
|
|
import affinity
|
|
except:
|
|
affinity = None
|
|
|
|
from daemonize import Daemonize
|
|
from synapse.util import PreserveLoggingContext
|
|
from synapse.util.rlimit import change_resource_limit
|
|
from twisted.internet import reactor
|
|
|
|
|
|
def start_worker_reactor(appname, config):
|
|
""" Run the reactor in the main process
|
|
|
|
Daemonizes if necessary, and then configures some resources, before starting
|
|
the reactor. Pulls configuration from the 'worker' settings in 'config'.
|
|
|
|
Args:
|
|
appname (str): application name which will be sent to syslog
|
|
config (synapse.config.Config): config object
|
|
"""
|
|
|
|
logger = logging.getLogger(config.worker_app)
|
|
|
|
start_reactor(
|
|
appname,
|
|
config.soft_file_limit,
|
|
config.gc_thresholds,
|
|
config.worker_pid_file,
|
|
config.worker_daemonize,
|
|
config.worker_cpu_affinity,
|
|
logger,
|
|
)
|
|
|
|
|
|
def start_reactor(
|
|
appname,
|
|
soft_file_limit,
|
|
gc_thresholds,
|
|
pid_file,
|
|
daemonize,
|
|
cpu_affinity,
|
|
logger,
|
|
):
|
|
""" Run the reactor in the main process
|
|
|
|
Daemonizes if necessary, and then configures some resources, before starting
|
|
the reactor
|
|
|
|
Args:
|
|
appname (str): application name which will be sent to syslog
|
|
soft_file_limit (int):
|
|
gc_thresholds:
|
|
pid_file (str): name of pid file to write to if daemonize is True
|
|
daemonize (bool): true to run the reactor in a background process
|
|
cpu_affinity (int|None): cpu affinity mask
|
|
logger (logging.Logger): logger instance to pass to Daemonize
|
|
"""
|
|
|
|
def run():
|
|
# make sure that we run the reactor with the sentinel log context,
|
|
# otherwise other PreserveLoggingContext instances will get confused
|
|
# and complain when they see the logcontext arbitrarily swapping
|
|
# between the sentinel and `run` logcontexts.
|
|
with PreserveLoggingContext():
|
|
logger.info("Running")
|
|
if cpu_affinity is not None:
|
|
if not affinity:
|
|
quit_with_error(
|
|
"Missing package 'affinity' required for cpu_affinity\n"
|
|
"option\n\n"
|
|
"Install by running:\n\n"
|
|
" pip install affinity\n\n"
|
|
)
|
|
logger.info("Setting CPU affinity to %s" % cpu_affinity)
|
|
affinity.set_process_affinity_mask(0, cpu_affinity)
|
|
change_resource_limit(soft_file_limit)
|
|
if gc_thresholds:
|
|
gc.set_threshold(*gc_thresholds)
|
|
reactor.run()
|
|
|
|
if daemonize:
|
|
daemon = Daemonize(
|
|
app=appname,
|
|
pid=pid_file,
|
|
action=run,
|
|
auto_close_fds=False,
|
|
verbose=True,
|
|
logger=logger,
|
|
)
|
|
daemon.start()
|
|
else:
|
|
run()
|
|
|
|
|
|
def quit_with_error(error_string):
|
|
message_lines = error_string.split("\n")
|
|
line_length = max([len(l) for l in message_lines if len(l) < 80]) + 2
|
|
sys.stderr.write("*" * line_length + '\n')
|
|
for line in message_lines:
|
|
sys.stderr.write(" %s\n" % (line.rstrip(),))
|
|
sys.stderr.write("*" * line_length + '\n')
|
|
sys.exit(1)
|