| // Copyright 2020 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.worker.WorkerProtocol.WorkRequest; |
| import com.google.devtools.build.lib.worker.WorkerProtocol.WorkResponse; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.OutputStream; |
| |
| /** An implementation of a Bazel worker using Proto to communicate with the worker process. */ |
| final class ProtoWorkerProtocol implements WorkerProtocolImpl { |
| |
| /** The worker process's stdin, which we send requests to. */ |
| private final OutputStream workersStdin; |
| |
| /** The worker process's stdout, which we read responses from. */ |
| private final InputStream workersStdout; |
| |
| public ProtoWorkerProtocol(OutputStream workersStdin, InputStream workersStdout) { |
| this.workersStdin = workersStdin; |
| this.workersStdout = workersStdout; |
| } |
| |
| @Override |
| public void putRequest(WorkRequest request) throws IOException { |
| request.writeDelimitedTo(workersStdin); |
| workersStdin.flush(); |
| } |
| |
| @Override |
| public WorkResponse getResponse() throws IOException { |
| boolean interrupted = Thread.interrupted(); |
| try { |
| return WorkResponse.parseDelimitedFrom(workersStdout); |
| } finally { |
| if (interrupted) { |
| Thread.currentThread().interrupt(); |
| } |
| } |
| } |
| |
| @Override |
| public void close() {} |
| } |