humotion / src / timestamp.cpp @ 18e9b892
History | View | Annotate | Download (2.039 KB)
| 1 |
#include "timestamp.h" |
|---|---|
| 2 |
#include <math.h> |
| 3 |
|
| 4 |
using namespace std; |
| 5 |
using namespace humotion; |
| 6 |
|
| 7 |
Timestamp::Timestamp(void){
|
| 8 |
//init of an empty timestamp will be assigned to the current system time
|
| 9 |
set(now()); |
| 10 |
} |
| 11 |
|
| 12 |
Timestamp::Timestamp(uint32_t _sec, uint32_t _nsec){
|
| 13 |
set(_sec, _nsec); |
| 14 |
} |
| 15 |
|
| 16 |
Timestamp::Timestamp(double dsec){
|
| 17 |
double fsec, fnsec;
|
| 18 |
fnsec = modf (dsec , &fsec); |
| 19 |
sec = fsec; |
| 20 |
nsec = fnsec * 1000000000.0; |
| 21 |
} |
| 22 |
|
| 23 |
Timestamp Timestamp::now(void){
|
| 24 |
struct timespec tp;
|
| 25 |
clock_gettime(CLOCK_REALTIME, &tp); |
| 26 |
return Timestamp(tp.tv_sec, tp.tv_nsec);
|
| 27 |
} |
| 28 |
|
| 29 |
void Timestamp::set(uint32_t _sec, uint32_t _nsec){
|
| 30 |
sec = _sec; |
| 31 |
nsec = _nsec; |
| 32 |
} |
| 33 |
|
| 34 |
void Timestamp::set(Timestamp a){
|
| 35 |
set(a.sec, a.nsec); |
| 36 |
} |
| 37 |
|
| 38 |
double Timestamp::to_seconds(void){ |
| 39 |
return sec + ((double)nsec)/1000000000.0; |
| 40 |
} |
| 41 |
|
| 42 |
bool Timestamp::operator<= (Timestamp &cmp){ |
| 43 |
if (sec < cmp.sec){
|
| 44 |
return true; |
| 45 |
}else if (sec > cmp.sec){ |
| 46 |
return false; |
| 47 |
}else{ //(a.sec == b.sec) |
| 48 |
//seconds are equal, check nsec:
|
| 49 |
return (nsec <= cmp.nsec);
|
| 50 |
} |
| 51 |
} |
| 52 |
|
| 53 |
bool Timestamp::is_null(void){ |
| 54 |
return (sec == 0) && (nsec == 0); |
| 55 |
} |
| 56 |
|
| 57 |
bool Timestamp::operator< (Timestamp &cmp){ |
| 58 |
if (sec < cmp.sec){
|
| 59 |
return true; |
| 60 |
}else if (sec > cmp.sec){ |
| 61 |
return false; |
| 62 |
}else{ //(a.sec == b.sec) |
| 63 |
//seconds are equal, check nsec:
|
| 64 |
return (nsec < cmp.nsec);
|
| 65 |
} |
| 66 |
} |
| 67 |
|
| 68 |
bool Timestamp::operator>= (Timestamp &cmp){ |
| 69 |
if (sec > cmp.sec){
|
| 70 |
return true; |
| 71 |
}else if (sec < cmp.sec){ |
| 72 |
return false; |
| 73 |
}else{ //(a.sec == b.sec) |
| 74 |
//seconds are equal, check nsec:
|
| 75 |
return (nsec >= cmp.nsec);
|
| 76 |
} |
| 77 |
} |
| 78 |
|
| 79 |
bool Timestamp::operator> (Timestamp &cmp){ |
| 80 |
if (sec > cmp.sec){
|
| 81 |
return true; |
| 82 |
}else if (sec < cmp.sec){ |
| 83 |
return false; |
| 84 |
}else{ //(a.sec == b.sec) |
| 85 |
//seconds are equal, check nsec:
|
| 86 |
return (nsec > cmp.nsec);
|
| 87 |
} |
| 88 |
} |
| 89 |
|
| 90 |
bool Timestamp::operator== (Timestamp &cmp){ |
| 91 |
return (sec == cmp.sec) && (nsec == cmp.nsec);
|
| 92 |
} |
| 93 |
|
| 94 |
bool Timestamp::operator!= (Timestamp &cmp){ |
| 95 |
return !(*this == cmp); |
| 96 |
} |
| 97 |
|