156 lines
3.9 KiB
C++
156 lines
3.9 KiB
C++
/***
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Copyright (C) 2021 J Reece Wilson (a/k/a "Reece"). All rights reserved.
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File: Clock.hpp
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Date: 2021-6-10
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Author: Reece
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***/
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#pragma once
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namespace Aurora::Time
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{
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struct tm
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{
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int tm_sec {};
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int tm_min {};
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int tm_hour {};
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int tm_mday {1};
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int tm_mon {};
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int tm_year {70};
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int tm_wday {};
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int tm_yday {};
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int tm_isdst {-1};
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template<typename Dest_t>
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void CopyTo(Dest_t &out) const
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{
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out.tm_sec = tm_sec;
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out.tm_min = tm_min;
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out.tm_hour = tm_hour;
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out.tm_mday = tm_mday;
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out.tm_mon = tm_mon;
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out.tm_year = tm_year;
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out.tm_wday = tm_wday;
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out.tm_yday = tm_yday;
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out.tm_isdst = tm_isdst;
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}
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template<typename In_t>
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void CopyFrom(const In_t &in)
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{
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tm_sec = in.tm_sec;
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tm_min = in.tm_min;
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tm_hour = in.tm_hour;
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tm_mday = in.tm_mday;
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tm_mon = in.tm_mon;
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tm_year = in.tm_year;
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tm_wday = in.tm_wday;
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tm_yday = in.tm_yday;
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tm_isdst = in.tm_isdst;
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}
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};
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/**
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Converts milliseconds from the Aurora epoch to a civil timestamp structure
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similar to or of std::tm
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Range: 1900 -> 2001 +- 2^63-1 ms
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*/
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AUKN_SYM tm ToCivilTime(AuInt64 time, bool UTC = true);
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/**
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Converts civil time to milliseconds from the Aurora epoch
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Range: 1900 -> 2001 +- 2^63-1 ms
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*/
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AUKN_SYM AuInt64 FromCivilTime(const tm &time, bool UTC = true);
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/**
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Retrieves system clock in jiffies
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*/
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AUKN_SYM AuUInt64 CurrentClock();
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/**
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Retrieves system clock in milliseconds from the Aurora epoch
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*/
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AUKN_SYM AuUInt64 CurrentClockMS();
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/**
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Retrieves system clock in nanoseconds from the Aurora epoch
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*/
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AUKN_SYM AuUInt64 CurrentClockNS();
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/**
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Translates the Aurora epoch to the standard unix epoch
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*/
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AUKN_SYM AuInt64 ConvertAuroraToUnixMS(AuInt64 in);
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/**
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Translates the Aurora epoch to the standard unix epoch
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*/
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AUKN_SYM AuInt64 ConvertAuroraToUnixNS(AuInt64 in);
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/**
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Translates a standard unix epoch to the Aurora epoch
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*/
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AUKN_SYM AuInt64 ConvertUnixToAuroraMS(AuInt64 in);
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/**
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Translates a standard unix epoch to the Aurora epoch
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*/
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AUKN_SYM AuInt64 ConvertUnixToAuroraNS(AuInt64 in);
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/**
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Returns a high resolution count of jiffies with an undefined epoch from a
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high resolution clock.
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These values should not nor can be accurately converted meaningfully
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*/
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AUKN_SYM AuUInt64 CurrentInternalClock();
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AUKN_SYM AuUInt64 CurrentInternalClockMS();
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AUKN_SYM AuUInt64 CurrentInternalClockNS();
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/**
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Let's say you're fucked and you need a ball park figure.
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Enjoy...
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*/
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AUKN_SYM AuUInt64 ConvertInternalToAuroraEpochMS(AuUInt64 in);
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AUKN_SYM AuUInt64 ConvertInternalToAuroraEpochNS(AuUInt64 in);
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/**
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Converts seconds from the Aurora epoch to time_t
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@deprecated
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*/
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AUKN_SYM time_t SToCTime(AuInt64 time);
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/**
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Converts nanoseconds from the Aurora epoch to time_t
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@deprecated
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*/
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AUKN_SYM time_t NSToCTime(AuInt64 time);
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/**
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Converts milliseconds from the Aurora epoch to time_t
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@deprecated
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*/
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AUKN_SYM time_t MSToCTime(AuInt64 time);
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AUKN_SYM AuInt64 CTimeToMS(time_t time);
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/**
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Retrieves the freqency as a fraction of: jiffies per second / 1 * nanoseconds in a second
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*/
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AUKN_SYM double CPUFrequencyDeltaNS();
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/**
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Retrieves the freqency as a fraction of: jiffies per second / 1 * milliseconds in a second
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*/
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AUKN_SYM double CPUFrequencyDeltaMS();
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/**
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Retrieves the freqency of jiffies per second
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*/
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AUKN_SYM AuUInt64 ClockJiffies();
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}
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