Safe Haskell	Safe
Language	Haskell2010

System.SysInfo

Contents

Usage

Synopsis

Usage

λ> import System.SysInfo
λ> val <- sysInfo
λ> either (_ -> "sysinfo failed") show val
"SysInfo {uptime = 121149, loads = Loads {sloads = [91200,80736,82592]}, totalram = 12286611456, freeram = 967655424, sharedram = 63033344, bufferram = 838983680, totalswap = 8261726208, freeswap = 8259276800, procs = 418, totalhigh = 0, freehigh = 0, memUnit = 1}"

sysInfo :: IO (Either Errno SysInfo) Source #

Function for getting system information. Internally it uses the Linux system call sysinfo to get the system statistics.

data SysInfo Source #

Data type representing system informating

Constructors

SysInfo

Fields

uptime :: CLong
Seconds since boot
loads :: Loads
1, 5, and 15 minute load averages
totalram :: CULong
Total usable main memory size
freeram :: CULong
Available memory size
sharedram :: CULong
Amount of shared memory
bufferram :: CULong
Memory used by buffers
totalswap :: CULong
Total swap space size
freeswap :: CULong
swap space still available
procs :: CUShort
Number of current processes
totalhigh :: CULong
Total high memory size
freehigh :: CULong
Available high memory size
memUnit :: CUInt
Memory unit size in bytes

Instances

Eq SysInfo Source #
Methods (==) :: SysInfo -> SysInfo -> Bool # (/=) :: SysInfo -> SysInfo -> Bool #
Ord SysInfo Source #
Methods compare :: SysInfo -> SysInfo -> Ordering # (<) :: SysInfo -> SysInfo -> Bool # (<=) :: SysInfo -> SysInfo -> Bool # (>) :: SysInfo -> SysInfo -> Bool # (>=) :: SysInfo -> SysInfo -> Bool # max :: SysInfo -> SysInfo -> SysInfo # min :: SysInfo -> SysInfo -> SysInfo #
Show SysInfo Source #
Methods showsPrec :: Int -> SysInfo -> ShowS # show :: SysInfo -> String # showList :: [SysInfo] -> ShowS #
Storable SysInfo Source #
Methods sizeOf :: SysInfo -> Int # alignment :: SysInfo -> Int # peekElemOff :: Ptr SysInfo -> Int -> IO SysInfo # pokeElemOff :: Ptr SysInfo -> Int -> SysInfo -> IO () # peekByteOff :: Ptr b -> Int -> IO SysInfo # pokeByteOff :: Ptr b -> Int -> SysInfo -> IO () # peek :: Ptr SysInfo -> IO SysInfo # poke :: Ptr SysInfo -> SysInfo -> IO () #

newtype Loads Source #

Constructors

Loads
Fields sloads :: [CULong]

Instances

Eq Loads Source #
Methods (==) :: Loads -> Loads -> Bool # (/=) :: Loads -> Loads -> Bool #
Ord Loads Source #
Methods compare :: Loads -> Loads -> Ordering # (<) :: Loads -> Loads -> Bool # (<=) :: Loads -> Loads -> Bool # (>) :: Loads -> Loads -> Bool # (>=) :: Loads -> Loads -> Bool # max :: Loads -> Loads -> Loads # min :: Loads -> Loads -> Loads #
Show Loads Source #
Methods showsPrec :: Int -> Loads -> ShowS # show :: Loads -> String # showList :: [Loads] -> ShowS #
Storable Loads Source #
Methods sizeOf :: Loads -> Int # alignment :: Loads -> Int # peekElemOff :: Ptr Loads -> Int -> IO Loads # pokeElemOff :: Ptr Loads -> Int -> Loads -> IO () # peekByteOff :: Ptr b -> Int -> IO Loads # pokeByteOff :: Ptr b -> Int -> Loads -> IO () # peek :: Ptr Loads -> IO Loads # poke :: Ptr Loads -> Loads -> IO () #