1 | // -*- c++ -*- |
---|
2 | #ifndef HUGO_TIME_MEASURE_H |
---|
3 | #define HUGO_TIME_MEASURE_H |
---|
4 | |
---|
5 | #include <sys/time.h> |
---|
6 | #include <sys/times.h> |
---|
7 | #include <fstream> |
---|
8 | #include <iostream> |
---|
9 | #include <unistd.h> |
---|
10 | |
---|
11 | namespace hugo { |
---|
12 | |
---|
13 | // double currTime() { |
---|
14 | // timeval tv; |
---|
15 | // //timezone tz; |
---|
16 | // gettimeofday(&tv, 0); |
---|
17 | // return double(tv.tv_sec)+double(tv.tv_usec)/1000000.0; |
---|
18 | // } |
---|
19 | |
---|
20 | class TimeStamp |
---|
21 | { |
---|
22 | tms ts; |
---|
23 | double real_time; |
---|
24 | |
---|
25 | public: |
---|
26 | |
---|
27 | tms &getTms() {return ts;} |
---|
28 | const tms &getTms() const {return ts;} |
---|
29 | double getRealTime() const {return real_time;} |
---|
30 | void stamp() |
---|
31 | { |
---|
32 | timeval tv; |
---|
33 | times(&ts); |
---|
34 | gettimeofday(&tv, 0);real_time=tv.tv_sec+double(tv.tv_usec)/1e6; |
---|
35 | } |
---|
36 | |
---|
37 | TimeStamp() |
---|
38 | { ts.tms_utime=ts.tms_stime=ts.tms_cutime=ts.tms_cstime=0; real_time=0;} |
---|
39 | |
---|
40 | TimeStamp(void *) { stamp();} |
---|
41 | |
---|
42 | TimeStamp &operator+=(const TimeStamp &b) |
---|
43 | { |
---|
44 | ts.tms_utime+=b.ts.tms_utime; |
---|
45 | ts.tms_stime+=b.ts.tms_stime; |
---|
46 | ts.tms_cutime+=b.ts.tms_cutime; |
---|
47 | ts.tms_cstime+=b.ts.tms_cstime; |
---|
48 | real_time+=b.real_time; |
---|
49 | return *this; |
---|
50 | } |
---|
51 | TimeStamp operator+(const TimeStamp &b) const |
---|
52 | { |
---|
53 | TimeStamp t(*this); |
---|
54 | return t+=b; |
---|
55 | } |
---|
56 | TimeStamp &operator-=(const TimeStamp &b) |
---|
57 | { |
---|
58 | ts.tms_utime-=b.ts.tms_utime; |
---|
59 | ts.tms_stime-=b.ts.tms_stime; |
---|
60 | ts.tms_cutime-=b.ts.tms_cutime; |
---|
61 | ts.tms_cstime-=b.ts.tms_cstime; |
---|
62 | real_time-=b.real_time; |
---|
63 | return *this; |
---|
64 | } |
---|
65 | TimeStamp operator-(const TimeStamp &b) const |
---|
66 | { |
---|
67 | TimeStamp t(*this); |
---|
68 | return t-=b; |
---|
69 | } |
---|
70 | |
---|
71 | TimeStamp ellapsed() const |
---|
72 | { |
---|
73 | TimeStamp t(NULL); |
---|
74 | return t-*this; |
---|
75 | } |
---|
76 | |
---|
77 | friend std::ostream& operator<<(std::ostream& os,const TimeStamp &t); |
---|
78 | |
---|
79 | double getUserTime() const |
---|
80 | { |
---|
81 | return double(ts.tms_utime)/sysconf(_SC_CLK_TCK); |
---|
82 | } |
---|
83 | double getSystemTime() const |
---|
84 | { |
---|
85 | return double(ts.tms_stime)/sysconf(_SC_CLK_TCK); |
---|
86 | } |
---|
87 | double getCUserTime() const |
---|
88 | { |
---|
89 | return double(ts.tms_cutime)/sysconf(_SC_CLK_TCK); |
---|
90 | } |
---|
91 | double getCSystemTime() const |
---|
92 | { |
---|
93 | return double(ts.tms_cstime)/sysconf(_SC_CLK_TCK); |
---|
94 | } |
---|
95 | }; |
---|
96 | |
---|
97 | class Timer |
---|
98 | { |
---|
99 | TimeStamp start_time; |
---|
100 | |
---|
101 | void _reset() {start_time.stamp();} |
---|
102 | |
---|
103 | public: |
---|
104 | Timer() {_reset();} |
---|
105 | |
---|
106 | operator TimeStamp () |
---|
107 | { |
---|
108 | TimeStamp t; |
---|
109 | t.stamp(); |
---|
110 | return t-start_time; |
---|
111 | } |
---|
112 | |
---|
113 | TimeStamp reset() |
---|
114 | { |
---|
115 | TimeStamp t(start_time); |
---|
116 | _reset(); |
---|
117 | return start_time-t; |
---|
118 | } |
---|
119 | }; |
---|
120 | |
---|
121 | inline std::ostream& operator<<(std::ostream& os,const TimeStamp &t) |
---|
122 | { |
---|
123 | long cls = sysconf(_SC_CLK_TCK); |
---|
124 | os << "u: " << double(t.getTms().tms_utime)/cls << |
---|
125 | "s, s: " << double(t.getTms().tms_stime)/cls << |
---|
126 | "s, cu: " << double(t.getTms().tms_cutime)/cls << |
---|
127 | "s, cs: " << double(t.getTms().tms_cstime)/cls << |
---|
128 | "s, real: " << t.getRealTime() << "s"; |
---|
129 | return os; |
---|
130 | } |
---|
131 | |
---|
132 | } //namespace hugo |
---|
133 | |
---|
134 | #endif //HUGO_TIME_MEASURE_H |
---|