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// 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.vfs.FileSystemUtils;
import com.google.devtools.build.lib.vfs.Path;
import com.google.devtools.build.lib.vfs.PathFragment;
import java.io.IOException;
import java.util.Map;
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();
FileSystemUtils.deleteTree(workDir);
}
@Override
public void prepareExecution(
Map<PathFragment, Path> inputFiles,
Set<PathFragment> outputFiles,
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, outputFiles, workerFiles);
workerExecRoot.createFileSystem();
super.prepareExecution(inputFiles, outputFiles, workerFiles);
}
@Override
public void finishExecution(Path execRoot) throws IOException {
super.finishExecution(execRoot);
workerExecRoot.copyOutputs(execRoot);
workerExecRoot = null;
}
}
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