89 lines
3.1 KiB
Java
89 lines
3.1 KiB
Java
/*
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* This file is part of fabric-loom, licensed under the MIT License (MIT).
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*
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* Copyright (c) 2021 FabricMC
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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package net.fabricmc.loom.util.ipc;
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import java.io.IOException;
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import java.io.UncheckedIOException;
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import java.net.StandardProtocolFamily;
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import java.net.UnixDomainSocketAddress;
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import java.nio.channels.ServerSocketChannel;
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import java.nio.channels.SocketChannel;
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import java.nio.charset.StandardCharsets;
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import java.nio.file.Path;
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import java.util.Scanner;
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import java.util.concurrent.CountDownLatch;
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import java.util.concurrent.ExecutorService;
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import java.util.concurrent.Executors;
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import java.util.concurrent.TimeUnit;
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import java.util.function.Consumer;
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public class IPCServer implements AutoCloseable {
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private final ExecutorService loggerReceiverService = Executors.newSingleThreadExecutor();
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private final Path path;
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private final Consumer<String> consumer;
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private final CountDownLatch startupLock = new CountDownLatch(1);
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public IPCServer(Path path, Consumer<String> consumer) {
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this.path = path;
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this.consumer = consumer;
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loggerReceiverService.submit(this::run);
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try {
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startupLock.await(10, TimeUnit.SECONDS);
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} catch (InterruptedException e) {
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throw new RuntimeException("Timed out waiting for IPC server thread to start", e);
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}
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}
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public void run() {
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UnixDomainSocketAddress address = UnixDomainSocketAddress.of(path);
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try (ServerSocketChannel serverChannel = ServerSocketChannel.open(StandardProtocolFamily.UNIX)) {
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serverChannel.bind(address);
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startupLock.countDown();
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try (SocketChannel clientChannel = serverChannel.accept();
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Scanner scanner = new Scanner(clientChannel, StandardCharsets.UTF_8)) {
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while (!Thread.currentThread().isInterrupted()) {
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if (scanner.hasNextLine()) {
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this.consumer.accept(scanner.nextLine());
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}
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}
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}
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} catch (IOException e) {
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throw new UncheckedIOException("Failed to listen for IPC messages", e);
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}
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}
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@Override
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public void close() throws InterruptedException {
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loggerReceiverService.shutdownNow();
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loggerReceiverService.awaitTermination(10, TimeUnit.SECONDS);
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}
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}
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