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76 lines
2.4 KiB
76 lines
2.4 KiB
///
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/// Copyright 2015-2020 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 <kj/compat/http.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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#include <sys/types.h>
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class Laminar;
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class Http;
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class Rpc;
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// This class 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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Server(kj::AsyncIoContext& ioContext);
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~Server();
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void start();
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void stop();
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// add a file descriptor to be monitored for output. The callback will be
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// invoked with the read data
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kj::Promise<void> readDescriptor(int fd, std::function<void(const char*,size_t)> cb);
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void addTask(kj::Promise<void> &&task);
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// add a one-shot timer callback
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kj::Promise<void> addTimeout(int seconds, std::function<void()> cb);
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// get a promise which resolves when a child process exits
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kj::Promise<int> onChildExit(kj::Maybe<pid_t>& pid);
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struct PathWatcher {
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virtual PathWatcher& addPath(const char* path) = 0;
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};
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PathWatcher& watchPaths(std::function<void()>);
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void listenRpc(Rpc& rpc, kj::StringPtr rpcBindAddress);
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void listenHttp(Http& http, kj::StringPtr httpBindAddress);
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private:
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kj::Promise<void> acceptRpcClient(Rpc& rpc, kj::Own<kj::ConnectionReceiver>&& listener);
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kj::Promise<void> handleFdRead(kj::AsyncInputStream* stream, char* buffer, std::function<void(const char*,size_t)> cb);
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void taskFailed(kj::Exception&& exception) override;
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private:
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int efd_quit;
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kj::AsyncIoContext& ioContext;
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kj::Own<kj::TaskSet> listeners;
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kj::TaskSet childTasks;
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kj::Maybe<kj::Promise<void>> reapWatch;
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};
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#endif // LAMINAR_SERVER_H_
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