mirror of
https://git.anonymousland.org/anonymousland/synapse.git
synced 2024-12-27 15:39:23 -05:00
51 lines
1.8 KiB
Python
51 lines
1.8 KiB
Python
# -*- coding: utf-8 -*-
|
|
# Copyright 2017 Vector Creations 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.
|
|
|
|
"""This module implements the TCP replication protocol used by synapse to
|
|
communicate between the master process and its workers (when they're enabled).
|
|
|
|
Further details can be found in docs/tcp_replication.rst
|
|
|
|
|
|
Structure of the module:
|
|
* handler.py - the classes used to handle sending/receiving commands to
|
|
replication
|
|
* command.py - the definitions of all the valid commands
|
|
* protocol.py - the TCP protocol classes
|
|
* resource.py - handles streaming stream updates to replications
|
|
* streams/ - the definitions of all the valid streams
|
|
|
|
|
|
The general interaction of the classes are:
|
|
|
|
+---------------------+
|
|
| ReplicationStreamer |
|
|
+---------------------+
|
|
|
|
|
v
|
|
+---------------------------+ +----------------------+
|
|
| ReplicationCommandHandler |---->|ReplicationDataHandler|
|
|
+---------------------------+ +----------------------+
|
|
| ^
|
|
v |
|
|
+-------------+
|
|
| Protocols |
|
|
| (TCP/redis) |
|
|
+-------------+
|
|
|
|
Where the ReplicationDataHandler (or subclasses) handles incoming stream
|
|
updates.
|
|
"""
|