| // 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.sandbox; |
| |
| import com.google.devtools.build.lib.runtime.CommandEnvironment; |
| import com.google.devtools.build.lib.util.OsUtils; |
| import com.google.devtools.build.lib.vfs.Path; |
| import com.google.devtools.build.lib.vfs.PathFragment; |
| import java.time.Duration; |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| /** |
| * This runner runs process-wrapper inside a sandboxed execution root, which should work on most |
| * platforms and gives at least some isolation between running actions. |
| */ |
| final class ProcessWrapperRunner { |
| private static final String PROCESS_WRAPPER = "process-wrapper" + OsUtils.executableExtension(); |
| |
| static boolean isSupported(CommandEnvironment cmdEnv) { |
| // We can only use this runner, if the process-wrapper exists in the embedded tools. |
| // This might not always be the case, e.g. while bootstrapping. |
| return getProcessWrapper(cmdEnv) != null; |
| } |
| |
| /** Returns the PathFragment of the process wrapper binary, or null if it doesn't exist. */ |
| static Path getProcessWrapper(CommandEnvironment cmdEnv) { |
| PathFragment execPath = cmdEnv.getBlazeWorkspace().getBinTools().getExecPath(PROCESS_WRAPPER); |
| return execPath != null ? cmdEnv.getExecRoot().getRelative(execPath) : null; |
| } |
| |
| static List<String> getCommandLine( |
| Path processWrapper, List<String> spawnArguments, Duration timeout, int timeoutGraceSeconds) { |
| List<String> commandLineArgs = new ArrayList<>(5 + spawnArguments.size()); |
| commandLineArgs.add(processWrapper.getPathString()); |
| commandLineArgs.add("--timeout=" + timeout.getSeconds()); |
| commandLineArgs.add("--kill_delay=" + timeoutGraceSeconds); |
| commandLineArgs.addAll(spawnArguments); |
| return commandLineArgs; |
| } |
| } |