[73] | 1 | // -*- c++ -*- |
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| 2 | #ifndef TIME_MEASURE_H |
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| 3 | #define TIME_MEASURE_H |
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| 4 | |
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| 5 | #include <sys/time.h> |
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[117] | 6 | #include <sys/times.h> |
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| 7 | #include <fstream> |
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| 8 | #include <iostream> |
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[121] | 9 | #include <unistd.h> |
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[73] | 10 | |
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| 11 | double currTime() { |
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| 12 | timeval tv; |
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| 13 | //timezone tz; |
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| 14 | gettimeofday(&tv, 0); |
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| 15 | return double(tv.tv_sec)+double(tv.tv_usec)/1000000.0; |
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| 16 | } |
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| 17 | |
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[117] | 18 | class TimeStamp |
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| 19 | { |
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| 20 | tms ts; |
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[118] | 21 | double real_time; |
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| 22 | |
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[117] | 23 | public: |
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| 24 | |
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| 25 | tms &getTms() {return ts;} |
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| 26 | const tms &getTms() const {return ts;} |
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[118] | 27 | double getRealTime() const {return real_time;} |
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| 28 | void stamp() |
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| 29 | { |
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| 30 | timeval tv; |
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| 31 | times(&ts); |
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| 32 | gettimeofday(&tv, 0);real_time=tv.tv_sec+double(tv.tv_usec)/1e6; |
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| 33 | } |
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| 34 | |
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| 35 | TimeStamp() |
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| 36 | { ts.tms_utime=ts.tms_stime=ts.tms_cutime=ts.tms_cstime=0; real_time=0;} |
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| 37 | |
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[117] | 38 | TimeStamp(void *) { stamp();} |
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| 39 | |
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| 40 | TimeStamp &operator+=(const TimeStamp &b) |
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| 41 | { |
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| 42 | ts.tms_utime+=b.ts.tms_utime; |
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| 43 | ts.tms_stime+=b.ts.tms_stime; |
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| 44 | ts.tms_cutime+=b.ts.tms_cutime; |
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| 45 | ts.tms_cstime+=b.ts.tms_cstime; |
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[118] | 46 | real_time+=b.real_time; |
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[117] | 47 | return *this; |
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| 48 | } |
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| 49 | TimeStamp operator+(const TimeStamp &b) const |
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| 50 | { |
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| 51 | TimeStamp t(*this); |
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| 52 | return t+=b; |
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| 53 | } |
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| 54 | TimeStamp &operator-=(const TimeStamp &b) |
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| 55 | { |
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| 56 | ts.tms_utime-=b.ts.tms_utime; |
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| 57 | ts.tms_stime-=b.ts.tms_stime; |
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| 58 | ts.tms_cutime-=b.ts.tms_cutime; |
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| 59 | ts.tms_cstime-=b.ts.tms_cstime; |
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[118] | 60 | real_time-=b.real_time; |
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[117] | 61 | return *this; |
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| 62 | } |
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| 63 | TimeStamp operator-(const TimeStamp &b) const |
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| 64 | { |
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| 65 | TimeStamp t(*this); |
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| 66 | return t-=b; |
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| 67 | } |
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| 68 | |
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| 69 | TimeStamp Ellapsed() const |
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| 70 | { |
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| 71 | TimeStamp t(NULL); |
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| 72 | return t-*this; |
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| 73 | } |
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| 74 | |
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| 75 | friend std::ostream& operator<<(std::ostream& os,const TimeStamp &t); |
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| 76 | |
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[118] | 77 | double getUserTime() const |
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| 78 | { |
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| 79 | long cls = sysconf(_SC_CLK_TCK); |
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| 80 | return double(ts.tms_utime)/cls; |
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| 81 | } |
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| 82 | double getSystemTime() const |
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| 83 | { |
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| 84 | long cls = sysconf(_SC_CLK_TCK); |
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| 85 | return double(ts.tms_stime)/cls; |
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| 86 | } |
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| 87 | double getCUserTime() const |
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| 88 | { |
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| 89 | long cls = sysconf(_SC_CLK_TCK); |
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| 90 | return double(ts.tms_cutime)/cls; |
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| 91 | } |
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| 92 | double getCSystemTime() const |
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| 93 | { |
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| 94 | long cls = sysconf(_SC_CLK_TCK); |
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| 95 | return double(ts.tms_cstime)/cls; |
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| 96 | } |
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[117] | 97 | }; |
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| 98 | |
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| 99 | class Timer |
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| 100 | { |
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| 101 | TimeStamp start_time; |
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| 102 | |
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| 103 | public: |
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| 104 | void reset() {start_time.stamp();} |
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| 105 | Timer() {reset();} |
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| 106 | |
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| 107 | operator TimeStamp () |
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| 108 | { |
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| 109 | TimeStamp t; |
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| 110 | t.stamp(); |
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| 111 | return t-start_time; |
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| 112 | } |
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| 113 | }; |
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| 114 | |
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| 115 | inline std::ostream& operator<<(std::ostream& os,const TimeStamp &t) |
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| 116 | { |
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| 117 | long cls = sysconf(_SC_CLK_TCK); |
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[118] | 118 | os << "u: " << double(t.getTms().tms_utime)/cls << |
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[117] | 119 | "s, s: " << double(t.getTms().tms_stime)/cls << |
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| 120 | "s, cu: " << double(t.getTms().tms_cutime)/cls << |
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[118] | 121 | "s, cs: " << double(t.getTms().tms_cstime)/cls << |
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| 122 | "s, real: " << t.getRealTime() << "s"; |
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[117] | 123 | return os; |
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| 124 | } |
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| 125 | |
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[73] | 126 | #endif //TIME_MEASURE_H |
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