src/performance/ktrace_provider/log_importer.h

// Copyright 2016 The Fuchsia Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef SRC_PERFORMANCE_KTRACE_PROVIDER_LOG_IMPORTER_H_
#define SRC_PERFORMANCE_KTRACE_PROVIDER_LOG_IMPORTER_H_

#include <lib/async/cpp/wait.h>
#include <lib/trace-engine/types.h>
#include <lib/zx/debuglog.h>

namespace ktrace_provider {

class LogImporter {
 public:
  LogImporter();
  ~LogImporter();

  void Start();
  void Stop();

 private:
  void Handle(async_dispatcher_t* dispatcher, async::WaitBase* wait, zx_status_t status,
              const zx_packet_signal_t* signal);

  zx::debuglog log_;
  zx_instant_boot_t start_time_;
  double time_scale_;
  async::WaitMethod<LogImporter, &LogImporter::Handle> wait_{this};

  LogImporter(const LogImporter&) = delete;
  LogImporter(LogImporter&&) = delete;
  LogImporter& operator=(const LogImporter&) = delete;
  LogImporter& operator=(LogImporter&&) = delete;
};

}  // namespace ktrace_provider

#endif  // SRC_PERFORMANCE_KTRACE_PROVIDER_LOG_IMPORTER_H_