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// Copyright 2015 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
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// See the License for the specific language governing permissions and
// limitations under the License.
syntax = "proto3";
package blaze.worker;
option java_package = "";
// An input file.
message Input {
// The path in the file system where to read this input artifact from. This is
// either a path relative to the execution root (the worker process is
// launched with the working directory set to the execution root), or an
// absolute path.
string path = 1;
// A hash-value of the contents. The format of the contents is unspecified and
// the digest should be treated as an opaque token.
bytes digest = 2;
// This represents a single work unit that Blaze sends to the worker.
message WorkRequest {
repeated string arguments = 1;
// The inputs that the worker is allowed to read during execution of this
// request.
repeated Input inputs = 2;
// To support multiplex worker, each WorkRequest must have an unique ID. This
// ID should be attached unchanged to the WorkResponse.
int32 request_id = 3;
// The worker sends this message to Blaze when it finished its work on the
// WorkRequest message.
message WorkResponse {
int32 exit_code = 1;
// This is printed to the user after the WorkResponse has been received and is
// supposed to contain compiler warnings / errors etc. - thus we'll use a
// string type here, which gives us UTF-8 encoding.
string output = 2;
// To support multiplex worker, each WorkResponse must have an unique ID.
// Since worker processes which support multiplex worker will handle multiple
// WorkRequests in parallel, this ID will be used to determined which
// WorkerProxy does this WorkResponse belong to.
int32 request_id = 3;