Safe Haskell	Safe-Inferred
Language	Haskell2010

Network.Mux.Time

Contents

DiffTime
Compact timestamp

Synopsis

data DiffTime
diffTimeToMicroseconds ∷ DiffTime → Integer
microsecondsToDiffTime ∷ Integer → DiffTime
timestampMicrosecondsLow32Bits ∷ Time → Word32

DiffTime

data DiffTime #

This is a length of time, as measured by a clock. Conversion functions such as fromInteger and realToFrac will treat it as seconds. For example, (0.010 :: DiffTime) corresponds to 10 milliseconds.

It has a precision of one picosecond (= 10^-12 s). Enumeration functions will treat it as picoseconds.

Instances

Instances details

Data DiffTime
Instance details Defined in Data.Time.Clock.Internal.DiffTime Methods gfoldl ∷ (∀ d b. Data d ⇒ c (d → b) → d → c b) → (∀ g. g → c g) → DiffTime → c DiffTime # gunfold ∷ (∀ b r. Data b ⇒ c (b → r) → c r) → (∀ r. r → c r) → Constr → c DiffTime # toConstr ∷ DiffTime → Constr # dataTypeOf ∷ DiffTime → DataType # dataCast1 ∷ Typeable t ⇒ (∀ d. Data d ⇒ c (t d)) → Maybe (c DiffTime) # dataCast2 ∷ Typeable t ⇒ (∀ d e. (Data d, Data e) ⇒ c (t d e)) → Maybe (c DiffTime) # gmapT ∷ (∀ b. Data b ⇒ b → b) → DiffTime → DiffTime # gmapQl ∷ (r → r' → r) → r → (∀ d. Data d ⇒ d → r') → DiffTime → r # gmapQr ∷ ∀ r r'. (r' → r → r) → r → (∀ d. Data d ⇒ d → r') → DiffTime → r # gmapQ ∷ (∀ d. Data d ⇒ d → u) → DiffTime → [u] # gmapQi ∷ Int → (∀ d. Data d ⇒ d → u) → DiffTime → u # gmapM ∷ Monad m ⇒ (∀ d. Data d ⇒ d → m d) → DiffTime → m DiffTime # gmapMp ∷ MonadPlus m ⇒ (∀ d. Data d ⇒ d → m d) → DiffTime → m DiffTime # gmapMo ∷ MonadPlus m ⇒ (∀ d. Data d ⇒ d → m d) → DiffTime → m DiffTime #
Enum DiffTime
Instance details Defined in Data.Time.Clock.Internal.DiffTime Methods succ ∷ DiffTime → DiffTime # pred ∷ DiffTime → DiffTime # toEnum ∷ Int → DiffTime # fromEnum ∷ DiffTime → Int # enumFrom ∷ DiffTime → [DiffTime] # enumFromThen ∷ DiffTime → DiffTime → [DiffTime] # enumFromTo ∷ DiffTime → DiffTime → [DiffTime] # enumFromThenTo ∷ DiffTime → DiffTime → DiffTime → [DiffTime] #
Num DiffTime
Instance details Defined in Data.Time.Clock.Internal.DiffTime Methods (+) ∷ DiffTime → DiffTime → DiffTime # (-) ∷ DiffTime → DiffTime → DiffTime # (*) ∷ DiffTime → DiffTime → DiffTime # negate ∷ DiffTime → DiffTime # abs ∷ DiffTime → DiffTime # signum ∷ DiffTime → DiffTime # fromInteger ∷ Integer → DiffTime #
Read DiffTime
Instance details Defined in Data.Time.Clock.Internal.DiffTime Methods readsPrec ∷ Int → ReadS DiffTime # readList ∷ ReadS [DiffTime] # readPrec ∷ ReadPrec DiffTime # readListPrec ∷ ReadPrec [DiffTime] #
Fractional DiffTime
Instance details Defined in Data.Time.Clock.Internal.DiffTime Methods (/) ∷ DiffTime → DiffTime → DiffTime # recip ∷ DiffTime → DiffTime # fromRational ∷ Rational → DiffTime #
Real DiffTime
Instance details Defined in Data.Time.Clock.Internal.DiffTime Methods toRational ∷ DiffTime → Rational #
RealFrac DiffTime
Instance details Defined in Data.Time.Clock.Internal.DiffTime Methods properFraction ∷ Integral b ⇒ DiffTime → (b, DiffTime) # truncate ∷ Integral b ⇒ DiffTime → b # round ∷ Integral b ⇒ DiffTime → b # ceiling ∷ Integral b ⇒ DiffTime → b # floor ∷ Integral b ⇒ DiffTime → b #
Show DiffTime
Instance details Defined in Data.Time.Clock.Internal.DiffTime Methods showsPrec ∷ Int → DiffTime → ShowS # show ∷ DiffTime → String # showList ∷ [DiffTime] → ShowS #
NFData DiffTime
Instance details Defined in Data.Time.Clock.Internal.DiffTime Methods rnf ∷ DiffTime → () #
Eq DiffTime
Instance details Defined in Data.Time.Clock.Internal.DiffTime Methods (==) ∷ DiffTime → DiffTime → Bool # (/=) ∷ DiffTime → DiffTime → Bool #
Ord DiffTime
Instance details Defined in Data.Time.Clock.Internal.DiffTime Methods compare ∷ DiffTime → DiffTime → Ordering # (<) ∷ DiffTime → DiffTime → Bool # (<=) ∷ DiffTime → DiffTime → Bool # (>) ∷ DiffTime → DiffTime → Bool # (>=) ∷ DiffTime → DiffTime → Bool # max ∷ DiffTime → DiffTime → DiffTime # min ∷ DiffTime → DiffTime → DiffTime #

diffTimeToMicroseconds ∷ DiffTime → Integer Source #

microsecondsToDiffTime ∷ Integer → DiffTime Source #

Compact timestamp

timestampMicrosecondsLow32Bits ∷ Time → Word32 Source #

This is a slightly peculiar operation: it returns the number of microseconds since an arbitrary epoch, modulo 2^32. This number of microseconds wraps every ~35 minutes.

The purpose is to give a compact timestamp (compact to send over the wire) for measuring time differences on the order of seconds or less.