pw_trace_tokenized/trace_service_pwpb.cc

// Copyright 2023 The Pigweed Authors
//
// 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
//
//     https://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.

#include "pw_trace_tokenized/trace_service_pwpb.h"

#include "pw_chrono/system_clock.h"

namespace pw::trace {

TraceService::TraceService(TokenizedTracer& tokenized_tracer,
                           stream::Writer& trace_writer)
    : BaseTraceService(tokenized_tracer, trace_writer) {}

Status TraceService::Start(
    const proto::pwpb::StartRequest::Message& /*request*/,
    proto::pwpb::StartResponse::Message& /*response*/) {
  return BaseTraceService::Start();
}

Status TraceService::Stop(const proto::pwpb::StopRequest::Message& /*request*/,
                          proto::pwpb::StopResponse::Message& response) {
  if (auto status = BaseTraceService::Stop(); status != pw::OkStatus()) {
    return status;
  }

  response.file_id = transfer_id_;
  return pw::OkStatus();
}

Status TraceService::GetClockParameters(
    const proto::pwpb::ClockParametersRequest::Message& /*request*/,
    proto::pwpb::ClockParametersResponse::Message& response) {
  response.clock_parameters.tick_period_seconds_numerator =
      PW_CHRONO_SYSTEM_CLOCK_PERIOD_SECONDS_NUMERATOR;
  response.clock_parameters.tick_period_seconds_denominator =
      PW_CHRONO_SYSTEM_CLOCK_PERIOD_SECONDS_DENOMINATOR;

  switch (chrono::SystemClock::epoch) {
    case chrono::Epoch::kUnknown:
      response.clock_parameters.epoch_type =
          chrono::pwpb::EpochType::Enum::kUnknown;
      break;
    case chrono::Epoch::kTimeSinceBoot:
      response.clock_parameters.epoch_type =
          chrono::pwpb::EpochType::Enum::kTimeSinceBoot;
      break;
    case chrono::Epoch::kUtcWallClock:
      response.clock_parameters.epoch_type =
          chrono::pwpb::EpochType::Enum::kUtcWallClock;
      break;
    case chrono::Epoch::kGpsWallClock:
      response.clock_parameters.epoch_type =
          chrono::pwpb::EpochType::Enum::kGpsWallClock;
      break;
    case chrono::Epoch::kTaiWallClock:
      response.clock_parameters.epoch_type =
          chrono::pwpb::EpochType::Enum::kTaiWallClock;
      break;
  }

  return pw::OkStatus();
}

}  // namespace pw::trace