ModuleCabal-3.12.1.0Haskell2010

Distribution.Compat.Time

1 type
5 values

PackageCabal-3.12.1.0
Exports6
LanguageHaskell2010
LicenceBSD-3-Clause
SourceTime.hs

newtypenewtype ModTime

An opaque type representing a file's modification time, represented internally as a 64-bit unsigned integer in the Windows UTC format.

Constructors

ModTime Word64

Instances9Bounded, Eq, Ord, Read, Show, Generic, …

Bounded ModTimeDefined in Cabal-3.12.1.0 · Distribution.Compat.Time
Eq ModTimeDefined in Cabal-3.12.1.0 · Distribution.Compat.Time
Ord ModTimeDefined in Cabal-3.12.1.0 · Distribution.Compat.Time
Read ModTimeDefined in Cabal-3.12.1.0 · Distribution.Compat.Time
Show ModTimeDefined in Cabal-3.12.1.0 · Distribution.Compat.Time
Generic ModTimeDefined in Cabal-3.12.1.0 · Distribution.Compat.Time
Binary ModTimeDefined in Cabal-3.12.1.0 · Distribution.Compat.Time
Structured ModTimeDefined in Cabal-3.12.1.0 · Distribution.Compat.Time
type Rep ModTime = D1 ('MetaData "ModTime" "Distribution.Compat.Time" "Cabal-3.12.1.0-fc60" 'True) (C1 ('MetaCons "ModTime" 'PrefixI 'False) (S1 ('MetaSel 'Nothing 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 Word64)))Defined in Cabal-3.12.1.0 · Distribution.Compat.Time

valuegetModTime :: FilePath -> IO ModTime

Return modification time of the given file. Works around the low clock resolution problem that getModificationTime has on GHC < 7.8.

This is a modified version of the code originally written for Shake by Neil Mitchell. See module Development.Shake.FileInfo.

valuegetFileAge :: FilePath -> IO Double

Return age of given file in days.

valuegetCurTime :: IO ModTime

Return the current time as ModTime.

valueposixSecondsToModTime :: Int64 -> ModTime

Convert POSIX seconds to ModTime.

valuecalibrateMtimeChangeDelay :: IO (Int, Int)

Based on code written by Neil Mitchell for Shake. See sleepFileTimeCalibrate in Test.Type. Returns a pair of microsecond values: first, the maximum delay seen, and the recommended delay to use before testing for file modification change. The returned delay is never smaller than 10 ms, but never larger than 1 second.