/*
* Copyright 2017 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.gradle.workers.internal;
import net.jcip.annotations.ThreadSafe;
import org.gradle.internal.concurrent.Stoppable;
import org.gradle.internal.operations.BuildOperationExecutor;
import org.gradle.internal.progress.BuildOperationState;
import org.gradle.internal.work.WorkerLeaseRegistry;
import org.gradle.internal.work.WorkerLeaseRegistry.WorkerLease;
import org.gradle.process.internal.health.memory.MemoryManager;
import org.gradle.process.internal.health.memory.TotalPhysicalMemoryProvider;
import java.io.File;
/**
* Controls the lifecycle of the worker daemon and provides access to it.
*/
@ThreadSafe
public class WorkerDaemonFactory implements WorkerFactory, Stoppable {
private final WorkerDaemonClientsManager clientsManager;
private final MemoryManager memoryManager;
private final WorkerDaemonExpiration workerDaemonExpiration;
private final WorkerLeaseRegistry workerLeaseRegistry;
private final BuildOperationExecutor buildOperationExecutor;
public WorkerDaemonFactory(WorkerDaemonClientsManager clientsManager, MemoryManager memoryManager, WorkerLeaseRegistry workerLeaseRegistry, BuildOperationExecutor buildOperationExecutor) {
this.clientsManager = clientsManager;
this.memoryManager = memoryManager;
this.workerDaemonExpiration = new WorkerDaemonExpiration(clientsManager, getTotalPhysicalMemory());
memoryManager.addMemoryHolder(workerDaemonExpiration);
this.workerLeaseRegistry = workerLeaseRegistry;
this.buildOperationExecutor = buildOperationExecutor;
}
@Override
public <T extends WorkSpec> Worker<T> getWorker(final Class<? extends WorkerProtocol<T>> workerImplementationClass, final File workingDir, final DaemonForkOptions forkOptions) {
return new Worker<T>() {
public DefaultWorkResult execute(T spec, WorkerLease parentWorkerWorkerLease, BuildOperationState parentBuildOperation) {
WorkerDaemonClient<T> client = clientsManager.reserveIdleClient(forkOptions);
if (client == null) {
client = clientsManager.reserveNewClient(workerImplementationClass, workingDir, forkOptions);
}
try {
return client.execute(spec, parentWorkerWorkerLease, parentBuildOperation);
} finally {
clientsManager.release(client);
}
}
@Override
public DefaultWorkResult execute(T spec) {
return execute(spec, workerLeaseRegistry.getCurrentWorkerLease(), buildOperationExecutor.getCurrentOperation());
}
};
}
@Override
public void stop() {
clientsManager.stop();
memoryManager.removeMemoryHolder(workerDaemonExpiration);
}
private static long getTotalPhysicalMemory() {
try {
return TotalPhysicalMemoryProvider.getTotalPhysicalMemory();
} catch (UnsupportedOperationException e) {
return -1;
}
}
}