magnetic_scattrelease-4.2.2ticket-1009ticket-1094-headlessticket-1242-2d-resolutionticket-1243ticket-1249unittest-saveload
Last change
on this file since f4e2f22 was
d85c194,
checked in by Piotr Rozyczko <piotr.rozyczko@…>, 9 years ago
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Remaining modules refactored
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Property mode set to
100644
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File size:
1.7 KB
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1 | /* |
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2 | * |
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3 | * Mathematical and Computational Sciences Division |
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4 | * National Institute of Technology, |
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5 | * Gaithersburg, MD USA |
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6 | * |
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7 | * |
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8 | * This software was developed at the National Institute of Standards and |
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9 | * Technology (NIST) by employees of the Federal Government in the course |
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10 | * of their official duties. Pursuant to title 17 Section 105 of the |
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11 | * United States Code, this software is not subject to copyright protection |
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12 | * and is in the public domain. NIST assumes no responsibility whatsoever for |
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13 | * its use by other parties, and makes no guarantees, expressed or implied, |
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14 | * about its quality, reliability, or any other characteristic. |
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15 | * |
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16 | */ |
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17 | |
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18 | |
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19 | |
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20 | #ifndef STOPWATCH_H |
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21 | #define STOPWATCH_H |
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22 | |
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23 | // for clock() and CLOCKS_PER_SEC |
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24 | #include <time.h> |
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25 | |
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26 | |
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27 | namespace TNT |
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28 | { |
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29 | |
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30 | inline static double seconds(void) |
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31 | { |
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32 | const double secs_per_tick = 1.0 / CLOCKS_PER_SEC; |
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33 | return ( (double) clock() ) * secs_per_tick; |
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34 | } |
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35 | |
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36 | class Stopwatch { |
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37 | private: |
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38 | int running_; |
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39 | double start_time_; |
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40 | double total_; |
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41 | |
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42 | public: |
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43 | inline Stopwatch(); |
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44 | inline void start(); |
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45 | inline double stop(); |
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46 | inline double read(); |
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47 | inline void resume(); |
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48 | inline int running(); |
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49 | }; |
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50 | |
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51 | inline Stopwatch::Stopwatch() : running_(0), start_time_(0.0), total_(0.0) {} |
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52 | |
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53 | void Stopwatch::start() |
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54 | { |
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55 | running_ = 1; |
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56 | total_ = 0.0; |
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57 | start_time_ = seconds(); |
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58 | } |
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59 | |
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60 | double Stopwatch::stop() |
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61 | { |
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62 | if (running_) |
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63 | { |
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64 | total_ += (seconds() - start_time_); |
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65 | running_ = 0; |
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66 | } |
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67 | return total_; |
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68 | } |
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69 | |
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70 | inline void Stopwatch::resume() |
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71 | { |
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72 | if (!running_) |
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73 | { |
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74 | start_time_ = seconds(); |
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75 | running_ = 1; |
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76 | } |
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77 | } |
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78 | |
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79 | |
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80 | inline double Stopwatch::read() |
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81 | { |
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82 | if (running_) |
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83 | { |
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84 | stop(); |
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85 | resume(); |
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86 | } |
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87 | return total_; |
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88 | } |
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89 | |
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90 | |
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91 | } /* TNT namespace */ |
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92 | #endif |
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93 | |
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94 | |
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95 | |
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