hourglass-0.2.10: simple performant time related library

LicenseBSD-style
MaintainerVincent Hanquez <vincent@snarc.org>
Stabilityexperimental
Portabilityunknown
Safe HaskellNone
LanguageHaskell2010

Data.Hourglass.Epoch

Contents

Description

Epoch tracking

Synopsis

computer time tracking with various epoch

newtype ElapsedSince epoch

A number of seconds elapsed since an epoch.

Constructors

ElapsedSince Seconds 

Instances

Eq (ElapsedSince epoch) 
Data epoch => Data (ElapsedSince epoch) 
Num (ElapsedSince epoch) 
Ord (ElapsedSince epoch) 
Read (ElapsedSince epoch) 
Show (ElapsedSince epoch) 
NFData (ElapsedSince epoch) 
Epoch epoch => Time (ElapsedSince epoch) 
Epoch epoch => Timeable (ElapsedSince epoch) 

data ElapsedSinceP epoch

A number of seconds and nanoseconds elapsed since an epoch.

Constructors

ElapsedSinceP !(ElapsedSince epoch) !NanoSeconds 

Instances

Eq (ElapsedSinceP epoch) 
Data epoch => Data (ElapsedSinceP epoch) 
Num (ElapsedSinceP e) 
Ord (ElapsedSinceP epoch) 
Read (ElapsedSinceP epoch) 
Show (ElapsedSinceP epoch) 
NFData (ElapsedSinceP e) 
Epoch epoch => Time (ElapsedSinceP epoch) 
Epoch epoch => Timeable (ElapsedSinceP epoch) 

Epoch

class Epoch epoch where

epoch related.

We use the well known Unix epoch as the reference timezone for doing conversion between epochs.

Each methods of this typeclass should not use the actual value, but only get the information needed from the type itself.

Methods

epochName :: epoch -> String

The name of this epoch

epochDiffToUnix :: epoch -> Seconds

number of seconds of difference with 1st January 1970.

a negative number means that this epoch start before the unix epoch.

standard and usual epochs

data UnixEpoch

Unix Epoch, starting 1st January 1970

Constructors

UnixEpoch 

data WindowsEpoch

Windows Epoch, starting 1st January 1601

Constructors

WindowsEpoch