| // Copyright 2016 The Bazel Authors. All rights reserved. |
| // |
| // 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 com.google.devtools.build.lib.worker; |
| |
| import com.google.devtools.build.lib.sandbox.SandboxHelpers.SandboxInputs; |
| import com.google.devtools.build.lib.sandbox.SandboxHelpers.SandboxOutputs; |
| import com.google.devtools.build.lib.vfs.Path; |
| import com.google.devtools.build.lib.vfs.PathFragment; |
| import java.io.IOException; |
| import java.util.Set; |
| |
| /** A {@link Worker} that runs inside a sandboxed execution root. */ |
| final class SandboxedWorker extends Worker { |
| private final Path workDir; |
| private WorkerExecRoot workerExecRoot; |
| |
| SandboxedWorker(WorkerKey workerKey, int workerId, Path workDir, Path logFile) { |
| super(workerKey, workerId, workDir, logFile); |
| this.workDir = workDir; |
| } |
| |
| @Override |
| void destroy() throws IOException { |
| super.destroy(); |
| workDir.deleteTree(); |
| } |
| |
| @Override |
| public void prepareExecution( |
| SandboxInputs inputFiles, SandboxOutputs outputs, Set<PathFragment> workerFiles) |
| throws IOException { |
| // Note that workerExecRoot isn't necessarily null at this point, so we can't do a Preconditions |
| // check for it: If a WorkerSpawnStrategy gets interrupted, finishExecution is not guaranteed to |
| // be called. |
| workerExecRoot = new WorkerExecRoot(workDir, inputFiles, outputs, workerFiles); |
| workerExecRoot.createFileSystem(); |
| |
| super.prepareExecution(inputFiles, outputs, workerFiles); |
| } |
| |
| @Override |
| public void finishExecution(Path execRoot) throws IOException { |
| super.finishExecution(execRoot); |
| |
| workerExecRoot.copyOutputs(execRoot); |
| workerExecRoot = null; |
| } |
| } |