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///
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/// Copyright 2015 Oliver Giles
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///
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/// This file is part of Laminar
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///
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/// Laminar is free software: you can redistribute it and/or modify
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/// it under the terms of the GNU 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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/// Laminar 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 Laminar. If not, see <http://www.gnu.org/licenses/>
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///
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#ifndef _LAMINAR_SERVER_H_
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#define _LAMINAR_SERVER_H_
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#include <kj/async-io.h>
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#include <capnp/message.h>
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#include <capnp/capability.h>
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#include <functional>
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struct LaminarInterface;
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// This class abstracts the HTTP/Websockets and Cap'n Proto RPC interfaces.
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// It also manages the program's asynchronous event loop
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class Server final : public kj::TaskSet::ErrorHandler {
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public:
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// Initializes the server with a LaminarInterface to handle requests from
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// HTTP/Websocket or RPC clients and bind addresses for each of those
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// interfaces. See the documentation for kj::AsyncIoProvider::getNetwork
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// for a description of the address format
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Server(LaminarInterface& li, kj::StringPtr rpcBindAddress, kj::StringPtr httpBindAddress);
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~Server();
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void start();
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void stop();
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void addProcess(int fd, std::function<void(char*,size_t)> readCb, std::function<void()> cb);
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private:
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void acceptHttpClient(kj::Own<kj::ConnectionReceiver>&& listener);
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void acceptRpcClient(kj::Own<kj::ConnectionReceiver>&& listener);
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kj::Promise<void> handleProcessOutput(kj::AsyncInputStream* stream, std::function<void(char*,size_t)> readCb);
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void taskFailed(kj::Exception&& exception) override {
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kj::throwFatalException(kj::mv(exception));
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}
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private:
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int efd;
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capnp::Capability::Client rpcInterface;
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struct WebsocketConnection;
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struct HttpImpl;
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HttpImpl* httpInterface;
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kj::AsyncIoContext ioContext;
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kj::TaskSet tasks;
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};
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#endif // _LAMINAR_SERVER_H_
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