{-# LINE 1 "System/DiskSpace.hsc" #-}
{-# LANGUAGE CPP #-}
module System.DiskSpace
( DiskUsage(..)
, getDiskUsage
, getAvailSpace
) where
{-# LINE 17 "System/DiskSpace.hsc" #-}
import Foreign
import Foreign.C
foreign import ccall safe statvfs :: CString -> Ptr a -> IO CInt
type FsBlkCnt = Word32
{-# LINE 26 "System/DiskSpace.hsc" #-}
getDiskUsage :: FilePath -> IO DiskUsage
getDiskUsage FilePath
path =
FilePath -> (CString -> IO DiskUsage) -> IO DiskUsage
forall a. FilePath -> (CString -> IO a) -> IO a
withCString FilePath
path ((CString -> IO DiskUsage) -> IO DiskUsage)
-> (CString -> IO DiskUsage) -> IO DiskUsage
forall a b. (a -> b) -> a -> b
$ \CString
cPath ->
Int -> (Ptr Any -> IO DiskUsage) -> IO DiskUsage
forall a b. Int -> (Ptr a -> IO b) -> IO b
allocaBytes ((Int
72)) ((Ptr Any -> IO DiskUsage) -> IO DiskUsage)
-> (Ptr Any -> IO DiskUsage) -> IO DiskUsage
forall a b. (a -> b) -> a -> b
$ \Ptr Any
stat -> do
{-# LINE 30 "System/DiskSpace.hsc" #-}
FilePath -> FilePath -> IO CInt -> IO ()
forall a. (Eq a, Num a) => FilePath -> FilePath -> IO a -> IO ()
throwErrnoPathIfMinus1_ FilePath
"getDiskUsage" FilePath
path (IO CInt -> IO ()) -> IO CInt -> IO ()
forall a b. (a -> b) -> a -> b
$ CString -> Ptr Any -> IO CInt
forall a. CString -> Ptr a -> IO CInt
statvfs CString
cPath Ptr Any
stat
CULong
bsize <- ((\Ptr Any
hsc_ptr -> Ptr Any -> Int -> IO CULong
forall b. Ptr b -> Int -> IO CULong
forall a b. Storable a => Ptr b -> Int -> IO a
peekByteOff Ptr Any
hsc_ptr Int
0)) Ptr Any
stat :: IO CULong
{-# LINE 32 "System/DiskSpace.hsc" #-}
CULong
frsize <- ((\Ptr Any
hsc_ptr -> Ptr Any -> Int -> IO CULong
forall b. Ptr b -> Int -> IO CULong
forall a b. Storable a => Ptr b -> Int -> IO a
peekByteOff Ptr Any
hsc_ptr Int
4)) Ptr Any
stat :: IO CULong
{-# LINE 33 "System/DiskSpace.hsc" #-}
FsBlkCnt
blocks <- ((\Ptr Any
hsc_ptr -> Ptr Any -> Int -> IO FsBlkCnt
forall b. Ptr b -> Int -> IO FsBlkCnt
forall a b. Storable a => Ptr b -> Int -> IO a
peekByteOff Ptr Any
hsc_ptr Int
8)) Ptr Any
stat :: IO FsBlkCnt
{-# LINE 34 "System/DiskSpace.hsc" #-}
FsBlkCnt
bfree <- ((\Ptr Any
hsc_ptr -> Ptr Any -> Int -> IO FsBlkCnt
forall b. Ptr b -> Int -> IO FsBlkCnt
forall a b. Storable a => Ptr b -> Int -> IO a
peekByteOff Ptr Any
hsc_ptr Int
12)) Ptr Any
stat :: IO FsBlkCnt
{-# LINE 35 "System/DiskSpace.hsc" #-}
FsBlkCnt
bavail <- ((\Ptr Any
hsc_ptr -> Ptr Any -> Int -> IO FsBlkCnt
forall b. Ptr b -> Int -> IO FsBlkCnt
forall a b. Storable a => Ptr b -> Int -> IO a
peekByteOff Ptr Any
hsc_ptr Int
16)) Ptr Any
stat :: IO FsBlkCnt
{-# LINE 36 "System/DiskSpace.hsc" #-}
let frsize' :: Integer
frsize' = CULong -> Integer
forall a b. (Integral a, Num b) => a -> b
fromIntegral CULong
frsize
DiskUsage -> IO DiskUsage
forall a. a -> IO a
forall (m :: * -> *) a. Monad m => a -> m a
return DiskUsage
{ diskTotal :: Integer
diskTotal = Integer
frsize' Integer -> Integer -> Integer
forall a. Num a => a -> a -> a
* FsBlkCnt -> Integer
forall a b. (Integral a, Num b) => a -> b
fromIntegral FsBlkCnt
blocks
, diskFree :: Integer
diskFree = Integer
frsize' Integer -> Integer -> Integer
forall a. Num a => a -> a -> a
* FsBlkCnt -> Integer
forall a b. (Integral a, Num b) => a -> b
fromIntegral FsBlkCnt
bfree
, diskAvail :: Integer
diskAvail = Integer
frsize' Integer -> Integer -> Integer
forall a. Num a => a -> a -> a
* FsBlkCnt -> Integer
forall a b. (Integral a, Num b) => a -> b
fromIntegral FsBlkCnt
bavail
, blockSize :: Int
blockSize = CULong -> Int
forall a b. (Integral a, Num b) => a -> b
fromIntegral CULong
bsize
}
{-# LINE 61 "System/DiskSpace.hsc" #-}
data DiskUsage = DiskUsage
{ DiskUsage -> Integer
diskTotal :: Integer
, DiskUsage -> Integer
diskFree :: Integer
, DiskUsage -> Integer
diskAvail :: Integer
, DiskUsage -> Int
blockSize :: Int
}
deriving (Int -> DiskUsage -> ShowS
[DiskUsage] -> ShowS
DiskUsage -> FilePath
(Int -> DiskUsage -> ShowS)
-> (DiskUsage -> FilePath)
-> ([DiskUsage] -> ShowS)
-> Show DiskUsage
forall a.
(Int -> a -> ShowS) -> (a -> FilePath) -> ([a] -> ShowS) -> Show a
$cshowsPrec :: Int -> DiskUsage -> ShowS
showsPrec :: Int -> DiskUsage -> ShowS
$cshow :: DiskUsage -> FilePath
show :: DiskUsage -> FilePath
$cshowList :: [DiskUsage] -> ShowS
showList :: [DiskUsage] -> ShowS
Show, DiskUsage -> DiskUsage -> Bool
(DiskUsage -> DiskUsage -> Bool)
-> (DiskUsage -> DiskUsage -> Bool) -> Eq DiskUsage
forall a. (a -> a -> Bool) -> (a -> a -> Bool) -> Eq a
$c== :: DiskUsage -> DiskUsage -> Bool
== :: DiskUsage -> DiskUsage -> Bool
$c/= :: DiskUsage -> DiskUsage -> Bool
/= :: DiskUsage -> DiskUsage -> Bool
Eq)
getDiskUsage :: FilePath -> IO DiskUsage
getAvailSpace :: FilePath -> IO Integer
getAvailSpace :: FilePath -> IO Integer
getAvailSpace = (DiskUsage -> Integer) -> IO DiskUsage -> IO Integer
forall a b. (a -> b) -> IO a -> IO b
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
fmap DiskUsage -> Integer
diskAvail (IO DiskUsage -> IO Integer)
-> (FilePath -> IO DiskUsage) -> FilePath -> IO Integer
forall b c a. (b -> c) -> (a -> b) -> a -> c
. FilePath -> IO DiskUsage
getDiskUsage