73 lines
2.1 KiB
C++
73 lines
2.1 KiB
C++
// Copyright (c) Facebook, Inc. and its affiliates.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// 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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#pragma once
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#include <folly/Optional.h>
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#include "rsocket/DuplexConnection.h"
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namespace folly {
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class EventBase;
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}
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namespace rsocket {
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using OnDuplexConnectionAccept = std::function<
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void(std::unique_ptr<rsocket::DuplexConnection>, folly::EventBase&)>;
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/**
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* Common interface for a server that accepts connections and turns them into
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* DuplexConnection.
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*
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* This is primarily used with RSocket::createServer(ConnectionAcceptor)
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*
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* Built-in implementations can be found in rsocket/transports/, such as
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* rsocket/transports/TcpConnectionAcceptor.h
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*/
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class ConnectionAcceptor {
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public:
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ConnectionAcceptor() = default;
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virtual ~ConnectionAcceptor() = default;
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ConnectionAcceptor(const ConnectionAcceptor&) = delete;
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ConnectionAcceptor(ConnectionAcceptor&&) = delete;
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ConnectionAcceptor& operator=(const ConnectionAcceptor&) = delete;
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ConnectionAcceptor& operator=(ConnectionAcceptor&&) = delete;
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/**
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* Allocate/start required resources (threads, sockets, etc) and begin
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* listening for new connections. Must be synchronous.
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*
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* This can only be called once.
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*/
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virtual void start(OnDuplexConnectionAccept) = 0;
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/**
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* Stop listening for new connections.
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*
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* This can only be called once. Must be called in or before
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* the implementation's destructor. Must be synchronous.
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*/
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virtual void stop() = 0;
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/**
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* Get the port the acceptor is listening on. Returns folly::none when the
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* acceptor is not listening.
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*/
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virtual folly::Optional<uint16_t> listeningPort() const = 0;
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};
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} // namespace rsocket
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