Application Development Kit (Version 4.7)

    1 // -*- Mode: C++; -*-    2 #ifndef _SDI_TIMESTAMP_H_    3 #define _SDI_TIMESTAMP_H_    4      7 #include <time.h>    8      9 namespace sdi   10 {   11 #if 0   12 }   13 #endif   14     16 class TimeStamp: public timespec   17 {   18   public:   20     static TimeStamp Clock();   21     23     static TimeStamp Monotonic();   24     26     class Unit_MS {};   27     29     class Unit_S {};   30     32     static Unit_MS MS;   33     35     static Unit_S S;   36     38     TimeStamp(time_t sec, long nsec);   39     41     TimeStamp(char sec)   42     {   43       tv_sec = sec;   44       tv_nsec = 0;   45     }   46     48     TimeStamp(unsigned char sec)   49     {   50       tv_sec = sec;   51       tv_nsec = 0;   52     }   53     55     TimeStamp(short sec)   56     {   57       tv_sec = sec;   58       tv_nsec = 0;   59     }   60     62     TimeStamp(unsigned short sec)   63     {   64       tv_sec = sec;   65       tv_nsec = 0;   66     }   67     69     TimeStamp(int sec)   70     {   71       tv_sec = sec;   72       tv_nsec = 0;   73     }   74     76     TimeStamp(unsigned sec)   77     {   78       tv_sec = sec;   79       tv_nsec = 0;   80     }   81     83     TimeStamp(long sec = 0)   84     {   85       tv_sec = sec;   86       tv_nsec = 0;   87     }   88     90     TimeStamp(unsigned long sec)   91     {   92       tv_sec = sec;   93       tv_nsec = 0;   94     }   95     97     TimeStamp(float t);   98    100     TimeStamp(double t);  101    103     TimeStamp &operator=(time_t sec)  104     {  105       tv_sec = sec;  106       tv_nsec = 0;  107       return *this;  108     }  109    111     TimeStamp &operator=(double t);  112    113     TimeStamp &operator+=(const TimeStamp &o);  114     TimeStamp &operator-=(const TimeStamp &o);  115    117     double get() const  118     {  119       return tv_sec + tv_nsec / 1000000000.0;  120     }  121    123     void set(double t)  124     {  125       operator=(t);  126     }  127    129     time_t s() const  130     {  131       return tv_sec;  132     }  133    135     long ms() const  136     {  137       return tv_sec * 1000 + tv_nsec / 1000000;  138     }  139    141     void normalize();  142    144     void clear()  145     {  146       tv_sec = 0;  147       tv_nsec = 0;  148     }  149 };  150    151    153 TimeStamp operator+(const TimeStamp &a, const TimeStamp &b);  154    156 TimeStamp operator-(const TimeStamp &a, const TimeStamp &b);  157    159 inline bool operator==(const TimeStamp &a, const TimeStamp &b)  160 {  161   return a.tv_sec == b.tv_sec && a.tv_nsec == b.tv_nsec;  162 }  163    165 inline bool operator!=(const TimeStamp &a, const TimeStamp &b)  166 {  167   return a.tv_sec != b.tv_sec && a.tv_nsec != b.tv_nsec;  168 }  169    171 inline bool operator<(const TimeStamp &a, const TimeStamp &b)  172 {  173   return a.tv_sec < b.tv_sec || (a.tv_sec == b.tv_sec && a.tv_nsec < b.tv_nsec);  174 }  175    177 inline bool operator<=(const TimeStamp &a, const TimeStamp &b)  178 {  179   return a.tv_sec < b.tv_sec || (a.tv_sec == b.tv_sec && a.tv_nsec <= b.tv_nsec);  180 }  181    183 inline bool operator>(const TimeStamp &a, const TimeStamp &b)  184 {  185   return a.tv_sec > b.tv_sec || (a.tv_sec == b.tv_sec && a.tv_nsec > b.tv_nsec);  186 }  187    189 inline bool operator>=(const TimeStamp &a, const TimeStamp &b)  190 {  191   return a.tv_sec > b.tv_sec || (a.tv_sec == b.tv_sec && a.tv_nsec >= b.tv_nsec);  192 }  193    195 inline TimeStamp operator*(int t, TimeStamp::Unit_MS)  196 {  197   return TimeStamp(t / 1000, t % 1000 * 1000000);  198 }  199    201 inline TimeStamp operator*(int t, TimeStamp::Unit_S)  202 {  203   return TimeStamp(t, 0);  204 }  205    206    207 } // namespace  208    209 #endif