145 lines
7.9 KiB
C++
145 lines
7.9 KiB
C++
#pragma once
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#include <stdint.h>
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#include <fc/string.hpp>
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#include <fc/optional.hpp>
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#ifdef _MSC_VER
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#pragma warning (push)
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#pragma warning (disable : 4244)
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#endif //// _MSC_VER
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namespace fc {
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class microseconds {
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public:
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explicit microseconds( int64_t c = 0) :_count(c){}
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static microseconds maximum() { return microseconds(0x7fffffffffffffffll); }
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friend microseconds operator + (const microseconds& l, const microseconds& r ) { return microseconds(l._count+r._count); }
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friend microseconds operator - (const microseconds& l, const microseconds& r ) { return microseconds(l._count-r._count); }
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bool operator==(const microseconds& c)const { return _count == c._count; }
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bool operator!=(const microseconds& c)const { return _count != c._count; }
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friend bool operator>(const microseconds& a, const microseconds& b){ return a._count > b._count; }
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friend bool operator>=(const microseconds& a, const microseconds& b){ return a._count >= b._count; }
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friend bool operator<(const microseconds& a, const microseconds& b){ return a._count < b._count; }
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friend bool operator<=(const microseconds& a, const microseconds& b){ return a._count <= b._count; }
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microseconds& operator+=(const microseconds& c) { _count += c._count; return *this; }
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microseconds& operator-=(const microseconds& c) { _count -= c._count; return *this; }
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int64_t count()const { return _count; }
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int64_t to_seconds()const { return _count/1000000; }
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private:
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friend class time_point;
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int64_t _count;
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};
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inline microseconds seconds( int64_t s ) { return microseconds( s * 1000000 ); }
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inline microseconds milliseconds( int64_t s ) { return microseconds( s * 1000 ); }
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inline microseconds minutes(int64_t m) { return seconds(60*m); }
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inline microseconds hours(int64_t h) { return minutes(60*h); }
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inline microseconds days(int64_t d) { return hours(24*d); }
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class variant;
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void to_variant( const fc::microseconds&, fc::variant& );
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void from_variant( const fc::variant& , fc::microseconds& );
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class time_point {
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public:
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explicit time_point( microseconds e = microseconds() ) :elapsed(e){}
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static time_point now();
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static time_point maximum() { return time_point( microseconds::maximum() ); }
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static time_point min() { return time_point(); }
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operator fc::string()const;
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static time_point from_iso_string( const fc::string& s );
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const microseconds& time_since_epoch()const { return elapsed; }
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uint32_t sec_since_epoch()const { return elapsed.count() / 1000000; }
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bool operator > ( const time_point& t )const { return elapsed._count > t.elapsed._count; }
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bool operator >=( const time_point& t )const { return elapsed._count >=t.elapsed._count; }
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bool operator < ( const time_point& t )const { return elapsed._count < t.elapsed._count; }
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bool operator <=( const time_point& t )const { return elapsed._count <=t.elapsed._count; }
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bool operator ==( const time_point& t )const { return elapsed._count ==t.elapsed._count; }
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bool operator !=( const time_point& t )const { return elapsed._count !=t.elapsed._count; }
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time_point& operator += ( const microseconds& m) { elapsed+=m; return *this; }
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time_point& operator -= ( const microseconds& m) { elapsed-=m; return *this; }
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time_point operator + (const microseconds& m) const { return time_point(elapsed+m); }
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time_point operator - (const microseconds& m) const { return time_point(elapsed-m); }
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microseconds operator - (const time_point& m) const { return microseconds(elapsed.count() - m.elapsed.count()); }
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private:
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microseconds elapsed;
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};
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/**
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* A lower resolution time_point accurate only to seconds from 1970
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*/
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class time_point_sec
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{
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public:
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time_point_sec()
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:utc_seconds(0){}
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explicit time_point_sec(uint32_t seconds )
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:utc_seconds(seconds){}
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time_point_sec( const time_point& t )
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:utc_seconds( t.time_since_epoch().count() / 1000000ll ){}
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static time_point_sec maximum() { return time_point_sec(0xffffffff); }
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static time_point_sec min() { return time_point_sec(0); }
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operator time_point()const { return time_point( fc::seconds( utc_seconds) ); }
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uint32_t sec_since_epoch()const { return utc_seconds; }
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time_point_sec operator = ( const fc::time_point& t )
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{
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utc_seconds = t.time_since_epoch().count() / 1000000ll;
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return *this;
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}
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friend bool operator < ( const time_point_sec& a, const time_point_sec& b ) { return a.utc_seconds < b.utc_seconds; }
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friend bool operator > ( const time_point_sec& a, const time_point_sec& b ) { return a.utc_seconds > b.utc_seconds; }
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friend bool operator <= ( const time_point_sec& a, const time_point_sec& b ) { return a.utc_seconds <= b.utc_seconds; }
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friend bool operator >= ( const time_point_sec& a, const time_point_sec& b ) { return a.utc_seconds >= b.utc_seconds; }
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friend bool operator == ( const time_point_sec& a, const time_point_sec& b ) { return a.utc_seconds == b.utc_seconds; }
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friend bool operator != ( const time_point_sec& a, const time_point_sec& b ) { return a.utc_seconds != b.utc_seconds; }
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time_point_sec& operator += ( uint32_t m ) { utc_seconds+=m; return *this; }
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time_point_sec& operator += ( microseconds m ) { utc_seconds+=m.to_seconds(); return *this; }
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time_point_sec& operator -= ( uint32_t m ) { utc_seconds-=m; return *this; }
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time_point_sec& operator -= ( microseconds m ) { utc_seconds-=m.to_seconds(); return *this; }
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time_point_sec operator +( uint32_t offset )const { return time_point_sec(utc_seconds + offset); }
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time_point_sec operator -( uint32_t offset )const { return time_point_sec(utc_seconds - offset); }
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friend time_point operator + ( const time_point_sec& t, const microseconds& m ) { return time_point(t) + m; }
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friend time_point operator - ( const time_point_sec& t, const microseconds& m ) { return time_point(t) - m; }
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friend microseconds operator - ( const time_point_sec& t, const time_point_sec& m ) { return time_point(t) - time_point(m); }
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friend microseconds operator - ( const time_point& t, const time_point_sec& m ) { return time_point(t) - time_point(m); }
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fc::string to_non_delimited_iso_string()const;
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fc::string to_iso_string()const;
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operator fc::string()const;
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static time_point_sec from_iso_string( const fc::string& s );
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private:
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uint32_t utc_seconds;
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};
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typedef fc::optional<time_point> otime_point;
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/** return a human-readable approximate time, relative to now()
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* e.g., "4 hours ago", "2 months ago", etc.
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*/
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string get_approximate_relative_time_string(const time_point_sec& event_time,
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const time_point_sec& relative_to_time = fc::time_point::now(),
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const std::string& ago = " ago");
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string get_approximate_relative_time_string(const time_point& event_time,
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const time_point& relative_to_time = fc::time_point::now(),
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const std::string& ago = " ago");
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}
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#include <fc/reflect/reflect.hpp>
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FC_REFLECT_TYPENAME( fc::time_point )
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FC_REFLECT_TYPENAME( fc::microseconds )
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FC_REFLECT_TYPENAME( fc::time_point_sec )
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#ifdef _MSC_VER
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#pragma warning (pop)
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#endif /// #ifdef _MSC_VER
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