// Copyright 2017 The Cobalt Authors. All Rights Reserved.
//
// 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.

#include "cobalt/h5vcc/h5vcc_trace_event.h"

namespace cobalt {
namespace h5vcc {

namespace {
const char* kOutputTraceFilename = "h5vcc_trace_event.json";
}  // namespace

H5vccTraceEvent::H5vccTraceEvent() {}

void H5vccTraceEvent::Start(const std::string& output_filename) {
  if (trace_to_file_) {
    DLOG(WARNING) << "H5vccTraceEvent is already started.";
  } else {
    FilePath output_filepath(output_filename.empty() ? kOutputTraceFilename
                                                     : output_filename);
    trace_to_file_.reset(new trace_event::ScopedTraceToFile(output_filepath));
  }
}

void H5vccTraceEvent::Stop() {
  if (trace_to_file_) {
    trace_to_file_.reset();
  } else {
    DLOG(WARNING) << "H5vccTraceEvent is already stopped.";
  }
}

}  // namespace h5vcc
}  // namespace cobalt