/*
 * Copyright (C) 2018 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 = "proto2";
package perfetto.protos;

message ChromeTracedValue {
  enum NestedType {
    DICT = 0;
    ARRAY = 1;
  }
  optional NestedType nested_type = 1;

  repeated string dict_keys = 2;
  repeated ChromeTracedValue dict_values = 3;
  repeated ChromeTracedValue array_values = 4;
  optional int32 int_value = 5;
  optional double double_value = 6;
  optional bool bool_value = 7;
  optional string string_value = 8;
}

message ChromeStringTableEntry {
  optional string value = 1;
  optional int32 index = 2;
}

// Deprecated, use TrackEvent protos instead.
message ChromeTraceEvent {
  message Arg {
    optional string name = 1;

    oneof value {
      bool bool_value = 2;
      uint64 uint_value = 3;
      int64 int_value = 4;
      double double_value = 5;
      string string_value = 6;
      // Pointers are stored in a separate type as the JSON output treats them
      // differently from other uint64 values.
      uint64 pointer_value = 7;
      string json_value = 8;
      ChromeTracedValue traced_value = 10;
    }

    // Takes precedence over |name| if set,
    // and is an index into |string_table|.
    optional uint32 name_index = 9;
  }

  optional string name = 1;
  optional int64 timestamp = 2;
  optional int32 phase = 3;
  optional int32 thread_id = 4;
  optional int64 duration = 5;
  optional int64 thread_duration = 6;
  optional string scope = 7;
  optional uint64 id = 8;
  optional uint32 flags = 9;
  optional string category_group_name = 10;
  optional int32 process_id = 11;
  optional int64 thread_timestamp = 12;
  optional uint64 bind_id = 13;

  repeated Arg args = 14;

  // Takes precedence over respectively |name| and
  // |category_group_name_index| if set,
  // and are indices into |string_table|.
  optional uint32 name_index = 15;
  optional uint32 category_group_name_index = 16;
}

message ChromeMetadata {
  optional string name = 1;

  oneof value {
    string string_value = 2;
    bool bool_value = 3;
    int64 int_value = 4;
    string json_value = 5;
  }
}

// Subtraces produced in legacy json format by Chrome tracing agents not yet
// updated to support the new binary format, e.g. ETW and CrOS ARC.
// TODO(eseckler): Update these agents to become perfetto producers.
message ChromeLegacyJsonTrace {
  enum TraceType {
    USER_TRACE = 0;

    // Deprecated.
    SYSTEM_TRACE = 1;
  }
  optional TraceType type = 1;
  optional string data = 2;
}

message ChromeEventBundle {
  // Deprecated, use TrackEvent protos instead.
  repeated ChromeTraceEvent trace_events = 1 [deprecated = true];
  // TODO(ssid): This should be deprecated in favor of ChromeMetadataPacket
  // which contains typed fields.
  repeated ChromeMetadata metadata = 2;
  // ftrace output from CrOS and Cast system tracing agents.
  // TODO(eseckler): Replace system traces with native perfetto service.
  repeated string legacy_ftrace_output = 4;
  repeated ChromeLegacyJsonTrace legacy_json_trace = 5;

  // Contents of a string table that's valid for
  // the whole ChromeEventBundle entry.
  repeated ChromeStringTableEntry string_table = 3 [deprecated = true];
}