diff options
Diffstat (limited to 'synapse/replication/tcp')
| -rw-r--r-- | synapse/replication/tcp/handler.py | 44 | ||||
| -rw-r--r-- | synapse/replication/tcp/protocol.py | 24 | ||||
| -rw-r--r-- | synapse/replication/tcp/redis.py | 8 |
3 files changed, 38 insertions, 38 deletions
diff --git a/synapse/replication/tcp/handler.py b/synapse/replication/tcp/handler.py index a7245da152..ee909f3fc5 100644 --- a/synapse/replication/tcp/handler.py +++ b/synapse/replication/tcp/handler.py @@ -48,7 +48,7 @@ from synapse.replication.tcp.commands import ( UserIpCommand, UserSyncCommand, ) -from synapse.replication.tcp.protocol import AbstractConnection +from synapse.replication.tcp.protocol import IReplicationConnection from synapse.replication.tcp.streams import ( STREAMS_MAP, AccountDataStream, @@ -82,7 +82,7 @@ user_ip_cache_counter = Counter("synapse_replication_tcp_resource_user_ip_cache" # the type of the entries in _command_queues_by_stream _StreamCommandQueue = Deque[ - Tuple[Union[RdataCommand, PositionCommand], AbstractConnection] + Tuple[Union[RdataCommand, PositionCommand], IReplicationConnection] ] @@ -174,7 +174,7 @@ class ReplicationCommandHandler: # The currently connected connections. (The list of places we need to send # outgoing replication commands to.) - self._connections = [] # type: List[AbstractConnection] + self._connections = [] # type: List[IReplicationConnection] LaterGauge( "synapse_replication_tcp_resource_total_connections", @@ -197,7 +197,7 @@ class ReplicationCommandHandler: # For each connection, the incoming stream names that have received a POSITION # from that connection. - self._streams_by_connection = {} # type: Dict[AbstractConnection, Set[str]] + self._streams_by_connection = {} # type: Dict[IReplicationConnection, Set[str]] LaterGauge( "synapse_replication_tcp_command_queue", @@ -220,7 +220,7 @@ class ReplicationCommandHandler: self._server_notices_sender = hs.get_server_notices_sender() def _add_command_to_stream_queue( - self, conn: AbstractConnection, cmd: Union[RdataCommand, PositionCommand] + self, conn: IReplicationConnection, cmd: Union[RdataCommand, PositionCommand] ) -> None: """Queue the given received command for processing @@ -267,7 +267,7 @@ class ReplicationCommandHandler: async def _process_command( self, cmd: Union[PositionCommand, RdataCommand], - conn: AbstractConnection, + conn: IReplicationConnection, stream_name: str, ) -> None: if isinstance(cmd, PositionCommand): @@ -321,10 +321,10 @@ class ReplicationCommandHandler: """Get a list of streams that this instances replicates.""" return self._streams_to_replicate - def on_REPLICATE(self, conn: AbstractConnection, cmd: ReplicateCommand): + def on_REPLICATE(self, conn: IReplicationConnection, cmd: ReplicateCommand): self.send_positions_to_connection(conn) - def send_positions_to_connection(self, conn: AbstractConnection): + def send_positions_to_connection(self, conn: IReplicationConnection): """Send current position of all streams this process is source of to the connection. """ @@ -347,7 +347,7 @@ class ReplicationCommandHandler: ) def on_USER_SYNC( - self, conn: AbstractConnection, cmd: UserSyncCommand + self, conn: IReplicationConnection, cmd: UserSyncCommand ) -> Optional[Awaitable[None]]: user_sync_counter.inc() @@ -359,21 +359,23 @@ class ReplicationCommandHandler: return None def on_CLEAR_USER_SYNC( - self, conn: AbstractConnection, cmd: ClearUserSyncsCommand + self, conn: IReplicationConnection, cmd: ClearUserSyncsCommand ) -> Optional[Awaitable[None]]: if self._is_master: return self._presence_handler.update_external_syncs_clear(cmd.instance_id) else: return None - def on_FEDERATION_ACK(self, conn: AbstractConnection, cmd: FederationAckCommand): + def on_FEDERATION_ACK( + self, conn: IReplicationConnection, cmd: FederationAckCommand + ): federation_ack_counter.inc() if self._federation_sender: self._federation_sender.federation_ack(cmd.instance_name, cmd.token) def on_USER_IP( - self, conn: AbstractConnection, cmd: UserIpCommand + self, conn: IReplicationConnection, cmd: UserIpCommand ) -> Optional[Awaitable[None]]: user_ip_cache_counter.inc() @@ -395,7 +397,7 @@ class ReplicationCommandHandler: assert self._server_notices_sender is not None await self._server_notices_sender.on_user_ip(cmd.user_id) - def on_RDATA(self, conn: AbstractConnection, cmd: RdataCommand): + def on_RDATA(self, conn: IReplicationConnection, cmd: RdataCommand): if cmd.instance_name == self._instance_name: # Ignore RDATA that are just our own echoes return @@ -412,7 +414,7 @@ class ReplicationCommandHandler: self._add_command_to_stream_queue(conn, cmd) async def _process_rdata( - self, stream_name: str, conn: AbstractConnection, cmd: RdataCommand + self, stream_name: str, conn: IReplicationConnection, cmd: RdataCommand ) -> None: """Process an RDATA command @@ -486,7 +488,7 @@ class ReplicationCommandHandler: stream_name, instance_name, token, rows ) - def on_POSITION(self, conn: AbstractConnection, cmd: PositionCommand): + def on_POSITION(self, conn: IReplicationConnection, cmd: PositionCommand): if cmd.instance_name == self._instance_name: # Ignore POSITION that are just our own echoes return @@ -496,7 +498,7 @@ class ReplicationCommandHandler: self._add_command_to_stream_queue(conn, cmd) async def _process_position( - self, stream_name: str, conn: AbstractConnection, cmd: PositionCommand + self, stream_name: str, conn: IReplicationConnection, cmd: PositionCommand ) -> None: """Process a POSITION command @@ -553,7 +555,9 @@ class ReplicationCommandHandler: self._streams_by_connection.setdefault(conn, set()).add(stream_name) - def on_REMOTE_SERVER_UP(self, conn: AbstractConnection, cmd: RemoteServerUpCommand): + def on_REMOTE_SERVER_UP( + self, conn: IReplicationConnection, cmd: RemoteServerUpCommand + ): """"Called when get a new REMOTE_SERVER_UP command.""" self._replication_data_handler.on_remote_server_up(cmd.data) @@ -576,7 +580,7 @@ class ReplicationCommandHandler: # between two instances, but that is not currently supported). self.send_command(cmd, ignore_conn=conn) - def new_connection(self, connection: AbstractConnection): + def new_connection(self, connection: IReplicationConnection): """Called when we have a new connection.""" self._connections.append(connection) @@ -603,7 +607,7 @@ class ReplicationCommandHandler: UserSyncCommand(self._instance_id, user_id, True, now) ) - def lost_connection(self, connection: AbstractConnection): + def lost_connection(self, connection: IReplicationConnection): """Called when a connection is closed/lost.""" # we no longer need _streams_by_connection for this connection. streams = self._streams_by_connection.pop(connection, None) @@ -624,7 +628,7 @@ class ReplicationCommandHandler: return bool(self._connections) def send_command( - self, cmd: Command, ignore_conn: Optional[AbstractConnection] = None + self, cmd: Command, ignore_conn: Optional[IReplicationConnection] = None ): """Send a command to all connected connections. diff --git a/synapse/replication/tcp/protocol.py b/synapse/replication/tcp/protocol.py index e0b4ad314d..8e4734b59c 100644 --- a/synapse/replication/tcp/protocol.py +++ b/synapse/replication/tcp/protocol.py @@ -46,7 +46,6 @@ indicate which side is sending, these are *not* included on the wire:: > ERROR server stopping * connection closed by server * """ -import abc import fcntl import logging import struct @@ -54,6 +53,7 @@ from inspect import isawaitable from typing import TYPE_CHECKING, List, Optional from prometheus_client import Counter +from zope.interface import Interface, implementer from twisted.internet import task from twisted.protocols.basic import LineOnlyReceiver @@ -121,6 +121,14 @@ class ConnectionStates: CLOSED = "closed" +class IReplicationConnection(Interface): + """An interface for replication connections.""" + + def send_command(cmd: Command): + """Send the command down the connection""" + + +@implementer(IReplicationConnection) class BaseReplicationStreamProtocol(LineOnlyReceiver): """Base replication protocol shared between client and server. @@ -495,20 +503,6 @@ class ClientReplicationStreamProtocol(BaseReplicationStreamProtocol): self.send_command(ReplicateCommand()) -class AbstractConnection(abc.ABC): - """An interface for replication connections.""" - - @abc.abstractmethod - def send_command(self, cmd: Command): - """Send the command down the connection""" - pass - - -# This tells python that `BaseReplicationStreamProtocol` implements the -# interface. -AbstractConnection.register(BaseReplicationStreamProtocol) - - # The following simply registers metrics for the replication connections pending_commands = LaterGauge( diff --git a/synapse/replication/tcp/redis.py b/synapse/replication/tcp/redis.py index 574eaea1eb..7cccde097d 100644 --- a/synapse/replication/tcp/redis.py +++ b/synapse/replication/tcp/redis.py @@ -19,6 +19,7 @@ from typing import TYPE_CHECKING, Generic, Optional, Type, TypeVar, cast import attr import txredisapi +from zope.interface import implementer from twisted.internet.address import IPv4Address, IPv6Address from twisted.internet.interfaces import IAddress, IConnector @@ -36,7 +37,7 @@ from synapse.replication.tcp.commands import ( parse_command_from_line, ) from synapse.replication.tcp.protocol import ( - AbstractConnection, + IReplicationConnection, tcp_inbound_commands_counter, tcp_outbound_commands_counter, ) @@ -66,7 +67,8 @@ class ConstantProperty(Generic[T, V]): pass -class RedisSubscriber(txredisapi.SubscriberProtocol, AbstractConnection): +@implementer(IReplicationConnection) +class RedisSubscriber(txredisapi.SubscriberProtocol): """Connection to redis subscribed to replication stream. This class fulfils two functions: @@ -75,7 +77,7 @@ class RedisSubscriber(txredisapi.SubscriberProtocol, AbstractConnection): connection, parsing *incoming* messages into replication commands, and passing them to `ReplicationCommandHandler` - (b) it implements the AbstractConnection API, where it sends *outgoing* commands + (b) it implements the IReplicationConnection API, where it sends *outgoing* commands onto outbound_redis_connection. Due to the vagaries of `txredisapi` we don't want to have a custom |