179 lines
2.8 KiB
C++
179 lines
2.8 KiB
C++
#include "timestamp.hh"
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#include <boost/functional/hash.hpp>
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/* *** Constructors *** */
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Timestamp::Timestamp()
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{
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clear() ;
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}
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Timestamp::Timestamp(const struct timespec &source)
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{
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set(source) ;
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}
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Timestamp::Timestamp(const owl_timestamp &source)
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{
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set(source) ;
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}
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Timestamp::Timestamp(const uint_fast32_t source_s,
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const uint_fast32_t source_ns)
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{
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set(source_s, source_ns) ;
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}
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Timestamp::Timestamp(const uint64_t source)
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{
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set(source) ;
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}
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Timestamp::Timestamp(const Timestamp &source)
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{
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set(source.timestamp) ;
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}
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/* *** Internal accessors *** */
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inline void Timestamp::set(const struct timespec &source)
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{
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timestamp = source ;
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}
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inline void Timestamp::set(const owl_timestamp &source)
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{
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set(source.tv_sec, source.tv_nsec) ;
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}
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inline void Timestamp::set(const uint_fast32_t source_s,
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const uint_fast32_t source_ns)
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{
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timestamp.tv_sec = source_s ;
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timestamp.tv_nsec = source_ns ;
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}
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inline void Timestamp::set(const uint64_t source_ms)
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{
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timestamp.tv_sec = source_ms / 1000 ;
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timestamp.tv_nsec = (source_ms - timestamp.tv_sec * 1000) * 1000000 ;
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}
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/* *** Operations *** */
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bool Timestamp::now()
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{
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return clock_gettime(CLOCK_REALTIME, ×tamp) == 0 ;
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}
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/**
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* #timestamp nanosecond field precision is set to ms, but the value
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* is still in ns.
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*/
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inline void Timestamp::round_to_ms()
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{
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timestamp.tv_nsec = timestamp.tv_nsec / 1000000 * 1000000 ;
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}
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/* *** Internal comparison functions *** */
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bool Timestamp::equals(const struct timespec &source) const
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{
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return
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timestamp.tv_sec == source.tv_sec &&
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timestamp.tv_nsec == source.tv_nsec ;
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}
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bool Timestamp::equals(const uint64_t source) const
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{
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Timestamp tmp(source) ;
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Timestamp me(*this) ;
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me.round_to_ms() ;
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return me == tmp ;
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}
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bool Timestamp::less_than(const struct timespec &source) const
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{
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if (timestamp.tv_sec < source.tv_sec)
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return true ;
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if (timestamp.tv_sec > source.tv_sec)
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return false ;
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// Second values are equal
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if (timestamp.tv_nsec < source.tv_nsec)
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return true ;
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return false ;
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}
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bool Timestamp::greater_than(const struct timespec &source) const
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{
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if (equals(source))
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return false ;
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return ! less_than(source) ;
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}
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/* *** Operators *** */
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const Timestamp& Timestamp::operator=(const Timestamp &source)
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{
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if (this == &source)
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return *this ;
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set(source.timestamp) ;
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return *this ;
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}
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bool Timestamp::operator==(const Timestamp &source) const
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{
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if (this == &source)
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return true ;
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return equals(source.timestamp) ;
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}
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std::ostream& operator<<(std::ostream &os, const Timestamp &t)
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{
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os << t.timestamp.tv_sec << '.' << t.timestamp.tv_nsec ;
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return os ;
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}
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size_t hash_value(const Timestamp &source)
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{
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return boost::hash_value(static_cast<uint64_t>(source)) ;
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}
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