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,
33                    int clock = SYSTEM_TIME_MONOTONIC,
34                    uint32_t flags = 0);
35        ~StopWatch();
36
37        const char* name() const;
38        nsecs_t     lap();
39        nsecs_t     elapsedTime() const;
40
41        void        reset();
42
43private:
44    const char*     mName;
45    int             mClock;
46    uint32_t        mFlags;
47
48    struct lap_t {
49        nsecs_t     soFar;
50        nsecs_t     thisLap;
51    };
52
53    nsecs_t         mStartTime;
54    lap_t           mLaps[8];
55    int             mNumLaps;
56};
57
58
59}; // namespace android
60
61
62// ---------------------------------------------------------------------------
63
64#endif // ANDROID_STOPWATCH_H
65