libutils/include/utils/StopWatch.h

/*
 * Copyright (C) 2005 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.
 */

#pragma once

#include <stdint.h>
#include <sys/types.h>

#include <utils/Timers.h>

namespace android {

class StopWatch {
  public:
    StopWatch(const char* name, int clock = SYSTEM_TIME_MONOTONIC);
    ~StopWatch();

    const char* name() const;
    nsecs_t elapsedTime() const;

    void reset();

  private:
    const char* mName;
    int mClock;

    nsecs_t mStartTime;
};

}  // namespace android