64 lines
2.0 KiB
C++
64 lines
2.0 KiB
C++
/* timeStamp.h */
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/**
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* Copyright - See the COPYRIGHT that is included with this distribution.
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* EPICS pvDataCPP is distributed subject to a Software License Agreement found
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* in file LICENSE that is included with this distribution.
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*/
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#ifndef TIMESTAMP_H
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#define TIMESTAMP_H
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#include <ctime>
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#include "epicsTime.h"
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#include "pvType.h"
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namespace epics { namespace pvData {
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extern int32 milliSecPerSec;
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extern int32 microSecPerSec;
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extern int32 nanoSecPerSec;
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extern int64 posixEpochAtEpicsEpoch;
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class TimeStamp {
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public:
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TimeStamp()
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:secondsPastEpoch(0),nanoSeconds(0) {}
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TimeStamp(int64 secondsPastEpoch,int32 nanoSeconds = 0);
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//default constructors and destructor are OK
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//This class should not be extended
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void normalize();
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void fromTime_t(const time_t &);
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void toTime_t(time_t &) const;
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int64 getSecondsPastEpoch() const {return secondsPastEpoch;}
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int64 getEpicsSecondsPastEpoch() const {
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return secondsPastEpoch - posixEpochAtEpicsEpoch;
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}
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int32 getNanoSeconds() const {return nanoSeconds;}
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void put(int64 secondsPastEpoch,int32 nanoSeconds = 0) {
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this->secondsPastEpoch = secondsPastEpoch;
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this->nanoSeconds = nanoSeconds;
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normalize();
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}
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void put(int64 milliseconds);
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void getCurrent();
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double toSeconds() const ;
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bool operator==(TimeStamp const &) const;
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bool operator!=(TimeStamp const &) const;
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bool operator<=(TimeStamp const &) const;
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bool operator< (TimeStamp const &) const;
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bool operator>=(TimeStamp const &) const;
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bool operator> (TimeStamp const &) const;
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static double diff(TimeStamp const & a,TimeStamp const & b);
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TimeStamp & operator+=(int64 seconds);
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TimeStamp & operator-=(int64 seconds);
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TimeStamp & operator+=(double seconds);
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TimeStamp & operator-=(double seconds);
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int64 getMilliseconds(); // milliseconds since epoch
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private:
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static int64 diffInt(TimeStamp const &left,TimeStamp const &right );
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int64 secondsPastEpoch;
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int32 nanoSeconds;
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};
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}}
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#endif /* TIMESTAMP_H */
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