475b7a7f1c
It will abort all the sessions within the stream_coordinator. It will be used by stream_plan soon.
98 lines
3.0 KiB
C++
98 lines
3.0 KiB
C++
/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* Modified by ScyllaDB
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* Copyright (C) 2015 ScyllaDB
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*/
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/*
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* This file is part of Scylla.
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*
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* Scylla is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Scylla is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Scylla. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include "gms/inet_address.hh"
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#include "streaming/stream_session.hh"
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#include "streaming/session_info.hh"
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#include <map>
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#include <algorithm>
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namespace streaming {
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/**
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* {@link StreamCoordinator} is a helper class that abstracts away maintaining multiple
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* StreamSession and ProgressInfo instances per peer.
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*
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* This class coordinates multiple SessionStreams per peer in both the outgoing StreamPlan context and on the
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* inbound StreamResultFuture context.
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*/
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class stream_coordinator {
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public:
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using inet_address = gms::inet_address;
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private:
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class host_streaming_data;
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std::map<inet_address, shared_ptr<stream_session>> _peer_sessions;
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bool _is_receiving;
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public:
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stream_coordinator(bool is_receiving = false)
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: _is_receiving(is_receiving) {
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}
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public:
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/**
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* @return true if any stream session is active
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*/
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bool has_active_sessions();
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std::vector<shared_ptr<stream_session>> get_all_stream_sessions();
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bool is_receiving();
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void connect_all_stream_sessions();
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std::set<inet_address> get_peers();
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public:
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shared_ptr<stream_session> get_or_create_session(inet_address peer) {
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auto& session = _peer_sessions[peer];
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if (!session) {
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session = make_shared<stream_session>(peer);
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}
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return session;
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}
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std::vector<session_info> get_all_session_info();
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std::vector<session_info> get_peer_session_info(inet_address peer);
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void abort_all_stream_sessions();
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};
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} // namespace streaming
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