1/*
2 * Copyright (C) 2005 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#ifndef ANDROID_STOPWATCH_H
18#define ANDROID_STOPWATCH_H
19
20#include <stdint.h>
21#include <sys/types.h>
22
23#include <utils/Timers.h>
24
25// ---------------------------------------------------------------------------
26
27namespace android {
28
29class StopWatch
30{
31public:
32  StopWatch(const char* name, int clock = SYSTEM_TIME_MONOTONIC);
33  ~StopWatch();
34
35  const char* name() const;
36  nsecs_t lap();
37  nsecs_t elapsedTime() const;
38
39  void reset();
40
41private:
42    const char*     mName;
43    int             mClock;
44
45    struct lap_t {
46        nsecs_t     soFar;
47        nsecs_t     thisLap;
48    };
49
50    nsecs_t         mStartTime;
51    lap_t           mLaps[8];
52    int             mNumLaps;
53};
54
55
56}; // namespace android
57
58
59// ---------------------------------------------------------------------------
60
61#endif // ANDROID_STOPWATCH_H
62