/*
 * Copyright (C) 2024 The Android Open Source Project
 *
 * 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.
 */

syntax = "proto3";

package perfetto.protos;

import "protos/perfetto/trace_processor/trace_processor.proto";

// gRPC Interface for a Bigtrace Worker
//
// Workers are owned by an "Orchestrator" which forward traces from requests by
// end users. Workers are responsible for loading the traces with
// TraceProcessor and executing the requests.
service BigtraceWorker {
  // Executes a SQL query on the specified trace and returns a stream of
  // execution responses. Note that this method returns a stream because each
  // trace can return >1 result due to chunking of protos at the
  // TraceProcessor::QueryResult level.
  rpc QueryTrace(BigtraceQueryTraceArgs) returns (BigtraceQueryTraceResponse);
}

// Request/Response for QueryTrace.
message BigtraceQueryTraceArgs {
  optional string trace = 1;
  optional string sql_query = 2;
}
message BigtraceQueryTraceResponse {
  optional string trace = 1;
  repeated QueryResult result = 2;
}
