src/trace_processor/importers/proto/track_event_module.h

/*
 * Copyright (C) 2019 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.
 */

#ifndef SRC_TRACE_PROCESSOR_IMPORTERS_PROTO_TRACK_EVENT_MODULE_H_
#define SRC_TRACE_PROCESSOR_IMPORTERS_PROTO_TRACK_EVENT_MODULE_H_

#include "perfetto/base/build_config.h"
#include "src/trace_processor/importers/proto/proto_importer_module.h"
#include "src/trace_processor/importers/proto/track_event_parser.h"
#include "src/trace_processor/importers/proto/track_event_tokenizer.h"
#include "src/trace_processor/timestamped_trace_piece.h"

#include "protos/perfetto/config/trace_config.pbzero.h"
#include "protos/perfetto/trace/trace_packet.pbzero.h"

namespace perfetto {
namespace trace_processor {

class TrackEventModule : public ProtoImporterModuleBase</*IsEnabled=*/1> {
 public:
  explicit TrackEventModule(TraceProcessorContext* context)
      : ProtoImporterModuleBase(context),
        tokenizer_(context),
        parser_(context) {}

  ModuleResult TokenizePacket(
      const protos::pbzero::TracePacket::Decoder& decoder,
      TraceBlobView* packet,
      int64_t packet_timestamp,
      PacketSequenceState* state) {
    if (decoder.has_track_descriptor()) {
      tokenizer_.TokenizeTrackDescriptorPacket(decoder);
      return ModuleResult::Handled();
    }

    if (decoder.has_track_event()) {
      tokenizer_.TokenizeTrackEventPacket(state, decoder, packet,
                                          packet_timestamp);
      return ModuleResult::Handled();
    }

    // TODO(eseckler): Remove these once Chrome has switched fully over to
    // TrackDescriptors.
    if (decoder.has_thread_descriptor()) {
      tokenizer_.TokenizeThreadDescriptorPacket(state, decoder);
      return ModuleResult::Handled();
    }
    if (decoder.has_process_descriptor()) {
      tokenizer_.TokenizeProcessDescriptorPacket(decoder);
      return ModuleResult::Handled();
    }

    return ModuleResult::Ignored();
  }

  ModuleResult ParsePacket(const protos::pbzero::TracePacket::Decoder& decoder,
                           const TimestampedTracePiece& ttp) {
    if (decoder.has_track_event()) {
      parser_.ParseTrackEvent(
          ttp.timestamp, ttp.thread_timestamp, ttp.thread_instruction_count,
          ttp.packet_sequence_state, ttp.packet_sequence_state_generation,
          decoder.track_event());
      return ModuleResult::Handled();
    }
    return ModuleResult::Ignored();
  }

 private:
  TrackEventTokenizer tokenizer_;
  TrackEventParser parser_;
};

}  // namespace trace_processor
}  // namespace perfetto

#endif  // SRC_TRACE_PROCESSOR_IMPORTERS_PROTO_TRACK_EVENT_MODULE_H_