78 lines
3.0 KiB
Java
78 lines
3.0 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.gradle;
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import java.lang.reflect.InvocationTargetException;
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import java.lang.reflect.Method;
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import java.util.Collections;
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import java.util.List;
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import java.util.Map;
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import java.util.concurrent.atomic.AtomicBoolean;
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import org.gradle.api.Transformer;
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import org.gradle.workers.internal.DaemonForkOptions;
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import org.gradle.workers.internal.WorkerDaemonClientsManager;
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public class WorkerDaemonClientsManagerHelper {
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public static final String MARKER_PROP = "fabric.loom.decompile.worker";
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public static boolean stopIdleJVM(WorkerDaemonClientsManager manager, String jvmMarkerValue) {
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AtomicBoolean stopped = new AtomicBoolean(false);
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/* Transformer<List<WorkerDaemonClient>, List<WorkerDaemonClient>> */
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Transformer<List<Object>, List<Object>> transformer = workerDaemonClients -> {
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for (Object /* WorkerDaemonClient */ client : workerDaemonClients) {
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DaemonForkOptions forkOptions = getForkOptions(client);
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Map<String, Object> systemProperties = forkOptions.getJavaForkOptions().getSystemProperties();
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if (systemProperties == null || !jvmMarkerValue.equals(systemProperties.get(MARKER_PROP))) {
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// Not the JVM we are looking for
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continue;
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}
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stopped.set(true);
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return Collections.singletonList(client);
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}
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return Collections.emptyList();
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};
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//noinspection unchecked
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manager.selectIdleClientsToStop((Transformer) transformer);
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return stopped.get();
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}
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private static DaemonForkOptions getForkOptions(Object /* WorkerDaemonClient */ client) {
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try {
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Method getForkOptionsMethod = client.getClass().getDeclaredMethod("getForkOptions");
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getForkOptionsMethod.setAccessible(true);
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return (DaemonForkOptions) getForkOptionsMethod.invoke(client);
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} catch (NoSuchMethodException | InvocationTargetException | IllegalAccessException e) {
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throw new RuntimeException(e);
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}
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}
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}
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