System.Posix.Clock

POSIX clocks.

Documentation

data TimeSpec

Mirrors struct timespec.

Instances

Bounded TimeSpec

Enum TimeSpec

Eq TimeSpec

Integral TimeSpec

Num TimeSpec

Ord TimeSpec

Real TimeSpec

Show TimeSpec

Storable TimeSpec

timeSpecSeconds :: TimeSpec -> CTime

timeSpecNanos :: TimeSpec -> CULong

mkTimeSpec :: CTime -> CULong -> TimeSpec

Create a TimeSpec from amounts of seconds and nanoseconds.

timeSpecV :: TimeSpec -> (CTime, CULong)

Convert a TimeSpec to a pair of its components. Useful as a view pattern.

timeSpecToInt64 :: TimeSpec -> Int64

newtype Clock

Mirrors clockid_t.

Constructors

Clock Int32

Instances

Eq Clock

Ord Clock

Show Clock

Storable Clock

monotonicClock :: Clock

realtimeClock :: Clock

processTimeClock :: Clock

threadTimeClock :: Clock

getProcessClock :: ProcessID -> IO Clock

Get the CPU-time clock of the given process. See clock_getcpuclockid(3).

getClockResolution :: Clock -> IO TimeSpec

Get the clock resolution. See clock_getres(3).

getClockTime :: Clock -> IO TimeSpec

Get the clock time. See clock_gettime(3).

setClockTime :: Clock -> TimeSpec -> IO ()

Set the clock time. See clock_settime(3).

clockSleep :: Clock -> TimeSpec -> IO TimeSpec

Sleep for the specified duration. When interrupted by a signal, returns the amount of time left to sleep. See clock_nanosleep(3).

clockSleepAbs :: Clock -> TimeSpec -> IO ()

Sleep until the clock time reaches the specified value. See clock_nanosleep(3).