internal/platform/monitored_runnable.h

// Copyright 2020 Google LLC
//
// 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.

#ifndef PLATFORM_PUBLIC_MONITORED_RUNNABLE_H_
#define PLATFORM_PUBLIC_MONITORED_RUNNABLE_H_

#include <string>

#include "absl/time/time.h"
#include "internal/platform/runnable.h"
#include "internal/platform/system_clock.h"

namespace location {
namespace nearby {

// A runnable with extra logging
// We log if the task has been waiting long on the executor or if it was running
// for a long time. The latter isn't always an issue - some tasks are expected
// to run for longer periods of time (minutes).
class MonitoredRunnable {
 public:
  explicit MonitoredRunnable(Runnable&& runnable);
  MonitoredRunnable(const std::string& name, Runnable&& runnable);
  ~MonitoredRunnable();

  void operator()() const;

 private:
  const std::string name_;
  Runnable runnable_;
  absl::Time post_time_ = SystemClock::ElapsedRealtime();
};

}  // namespace nearby
}  // namespace location

#endif  // PLATFORM_PUBLIC_MONITORED_RUNNABLE_H_