/*
 * Copyright (C) 2022 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";
import "perfetto_trace.proto";

package tracing_vm_proto;

// zero is invalid session id and indicates an error.
message TracingSessionIdentifier {
    uint64 session_id = 1;
}

message StartTracingRequest {
    perfetto.protos.TraceConfig host_config = 1;
}

message RequestStatus {
    bool is_ok = 1;
    string error_str = 2;
    TracingSessionIdentifier session_id = 3;
}

message TracingFileBuffer {
    bytes buffer = 1;
}

service TracingServer {
    rpc StartTracing(StartTracingRequest) returns (RequestStatus) {}

    rpc StopTracing(TracingSessionIdentifier) returns (RequestStatus) {}

    rpc GetTracingFile(TracingSessionIdentifier) returns (stream TracingFileBuffer) {}
}