/work/install-coverage/include/opencv4/opencv2/flann/timer.h
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1 | | /*********************************************************************** |
2 | | * Software License Agreement (BSD License) |
3 | | * |
4 | | * Copyright 2008-2009 Marius Muja (mariusm@cs.ubc.ca). All rights reserved. |
5 | | * Copyright 2008-2009 David G. Lowe (lowe@cs.ubc.ca). All rights reserved. |
6 | | * |
7 | | * THE BSD LICENSE |
8 | | * |
9 | | * Redistribution and use in source and binary forms, with or without |
10 | | * modification, are permitted provided that the following conditions |
11 | | * are met: |
12 | | * |
13 | | * 1. Redistributions of source code must retain the above copyright |
14 | | * notice, this list of conditions and the following disclaimer. |
15 | | * 2. Redistributions in binary form must reproduce the above copyright |
16 | | * notice, this list of conditions and the following disclaimer in the |
17 | | * documentation and/or other materials provided with the distribution. |
18 | | * |
19 | | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
20 | | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
21 | | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
22 | | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
23 | | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
24 | | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
25 | | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
26 | | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
27 | | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
28 | | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
29 | | *************************************************************************/ |
30 | | |
31 | | #ifndef OPENCV_FLANN_TIMER_H |
32 | | #define OPENCV_FLANN_TIMER_H |
33 | | |
34 | | //! @cond IGNORED |
35 | | |
36 | | #include <time.h> |
37 | | #include "opencv2/core.hpp" |
38 | | #include "opencv2/core/utility.hpp" |
39 | | |
40 | | namespace cvflann |
41 | | { |
42 | | |
43 | | /** |
44 | | * A start-stop timer class. |
45 | | * |
46 | | * Can be used to time portions of code. |
47 | | */ |
48 | | class StartStopTimer |
49 | | { |
50 | | int64 startTime; |
51 | | |
52 | | public: |
53 | | /** |
54 | | * Value of the timer. |
55 | | */ |
56 | | double value; |
57 | | |
58 | | |
59 | | /** |
60 | | * Constructor. |
61 | | */ |
62 | | StartStopTimer() |
63 | | : startTime(0) |
64 | 0 | { |
65 | 0 | reset(); |
66 | 0 | } |
67 | | |
68 | | /** |
69 | | * Starts the timer. |
70 | | */ |
71 | | void start() |
72 | 0 | { |
73 | 0 | startTime = cv::getTickCount(); |
74 | 0 | } |
75 | | |
76 | | /** |
77 | | * Stops the timer and updates timer value. |
78 | | */ |
79 | | void stop() |
80 | 0 | { |
81 | 0 | int64 stopTime = cv::getTickCount(); |
82 | 0 | value += ( (double)stopTime - startTime) / cv::getTickFrequency(); |
83 | 0 | } |
84 | | |
85 | | /** |
86 | | * Resets the timer value to 0. |
87 | | */ |
88 | | void reset() |
89 | 0 | { |
90 | 0 | value = 0; |
91 | 0 | } |
92 | | |
93 | | }; |
94 | | |
95 | | } |
96 | | |
97 | | //! @endcond |
98 | | |
99 | | #endif // FLANN_TIMER_H |