Files
scylladb/transport/controller.hh
Pavel Emelyanov 43951318c8 transport: Keep gossiper on server
The gossiper is needed by the transport::event_notifier. There's
already gossiper reference on the transport controller, but it's
a local reference, because controller doesn't need more. This
patch upgrages controller reference to sharded<> and propagates
it further up to the server.

Signed-off-by: Pavel Emelyanov <xemul@scylladb.com>
2021-11-25 10:54:45 +03:00

83 lines
2.8 KiB
C++

/*
* Copyright (C) 2020-present ScyllaDB
*/
/*
* This file is part of Scylla.
*
* Scylla is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Scylla is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Scylla. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include <seastar/core/semaphore.hh>
#include <seastar/core/sharded.hh>
#include <seastar/core/future.hh>
#include "protocol_server.hh"
using namespace seastar;
namespace auth { class service; }
namespace service {
class migration_notifier;
class endpoint_lifecycle_notifier;
class memory_limiter;
}
namespace gms { class gossiper; }
namespace cql3 { class query_processor; }
namespace qos { class service_level_controller; }
namespace db { class config; }
namespace cql_transport {
class cql_server;
class controller : public protocol_server {
std::vector<socket_address> _listen_addresses;
std::unique_ptr<sharded<cql_server>> _server;
semaphore _ops_sem; /* protects start/stop operations on _server */
bool _stopped = false;
sharded<auth::service>& _auth_service;
sharded<service::migration_notifier>& _mnotifier;
sharded<service::endpoint_lifecycle_notifier>& _lifecycle_notifier;
sharded<gms::gossiper>& _gossiper;
sharded<cql3::query_processor>& _qp;
sharded<service::memory_limiter>& _mem_limiter;
sharded<qos::service_level_controller>& _sl_controller;
const db::config& _config;
future<> set_cql_ready(bool ready);
future<> do_start_server();
future<> do_stop_server();
future<> subscribe_server(sharded<cql_server>& server);
future<> unsubscribe_server(sharded<cql_server>& server);
public:
controller(sharded<auth::service>&, sharded<service::migration_notifier>&, sharded<gms::gossiper>&,
sharded<cql3::query_processor>&, sharded<service::memory_limiter>&,
sharded<qos::service_level_controller>&, sharded<service::endpoint_lifecycle_notifier>&,
const db::config& cfg);
virtual sstring name() const override;
virtual sstring protocol() const override;
virtual sstring protocol_version() const override;
virtual std::vector<socket_address> listen_addresses() const override;
virtual future<> start_server() override;
virtual future<> stop_server() override;
virtual future<> request_stop_server() override;
};
} // namespace cql_transport