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-rw-r--r--src/Xmobar/Plugins/Monitors/Disk.hs165
1 files changed, 41 insertions, 124 deletions
diff --git a/src/Xmobar/Plugins/Monitors/Disk.hs b/src/Xmobar/Plugins/Monitors/Disk.hs
index debc522..47d1eac 100644
--- a/src/Xmobar/Plugins/Monitors/Disk.hs
+++ b/src/Xmobar/Plugins/Monitors/Disk.hs
@@ -12,20 +12,25 @@
--
-----------------------------------------------------------------------------
+{-# LANGUAGE CPP #-}
+
module Xmobar.Plugins.Monitors.Disk (diskUConfig, runDiskU, startDiskIO) where
import Xmobar.Plugins.Monitors.Common
-import Xmobar.System.StatFS
-
-import Data.IORef (IORef, newIORef, readIORef, writeIORef)
+#if defined(freebsd_HOST_OS)
+import qualified Xmobar.Plugins.Monitors.Disk.FreeBSD as MD
+#else
+import qualified Xmobar.Plugins.Monitors.Disk.Linux as MD
+#endif
-import Control.Exception (SomeException, handle)
import Control.Monad (zipWithM)
-import qualified Data.ByteString.Lazy.Char8 as B
-import Data.List (isPrefixOf, find)
-import Data.Maybe (catMaybes)
-import System.Directory (canonicalizePath, doesFileExist)
import System.Console.GetOpt
+import Data.List (find)
+
+import Xmobar.Plugins.Monitors.Disk.Common (
+ DevName
+ , Path
+ )
data DiskIOOpts = DiskIOOpts
{ totalIconPattern :: Maybe IconPattern
@@ -93,103 +98,12 @@ diskUConfig = mkMConfig ""
, "usedbar", "usedvbar", "usedipat"
]
-type DevName = String
-type Path = String
-type DevDataRef = IORef [(DevName, [Float])]
-
-mountedDevices :: [String] -> IO [(DevName, Path)]
-mountedDevices req = do
- s <- B.readFile "/etc/mtab"
- parse `fmap` mapM mbcanon (devs s)
- where
- mbcanon (d, p) = doesFileExist d >>= \e ->
- if e
- then Just `fmap` canon (d,p)
- else return Nothing
- canon (d, p) = do {d' <- canonicalizePath d; return (d', p)}
- devs = filter isDev . map (firstTwo . B.words) . B.lines
- parse = map undev . filter isReq . catMaybes
- firstTwo (a:b:_) = (B.unpack a, B.unpack b)
- firstTwo _ = ("", "")
- isDev (d, _) = "/dev/" `isPrefixOf` d
- isReq (d, p) = p `elem` req || drop 5 d `elem` req
- undev (d, f) = (drop 5 d, f)
-
-diskDevices :: [String] -> IO [(DevName, Path)]
-diskDevices req = do
- s <- B.readFile "/proc/diskstats"
- parse `fmap` mapM canon (devs s)
- where
- canon (d, p) = do {d' <- canonicalizePath d; return (d', p)}
- devs = map (third . B.words) . B.lines
- parse = map undev . filter isReq
- third (_:_:c:_) = ("/dev/" ++ B.unpack c, B.unpack c)
- third _ = ("", "")
- isReq (d, p) = p `elem` req || drop 5 d `elem` req
- undev (d, f) = (drop 5 d, f)
-
-mountedOrDiskDevices :: [String] -> IO [(DevName, Path)]
-mountedOrDiskDevices req = do
- mnt <- mountedDevices req
- case mnt of
- [] -> diskDevices req
- other -> return other
-
-diskData :: IO [(DevName, [Float])]
-diskData = do
- s <- B.readFile "/proc/diskstats"
- let extract ws = (head ws, map read (tail ws))
- return $ map (extract . map B.unpack . drop 2 . B.words) (B.lines s)
-
-mountedData :: DevDataRef -> [DevName] -> IO [(DevName, [Float])]
-mountedData dref devs = do
- dt <- readIORef dref
- dt' <- diskData
- writeIORef dref dt'
- return $ map (parseDev (zipWith diff dt' dt)) devs
- where diff (dev, xs) (_, ys) = (dev, zipWith (-) xs ys)
-
-
-parseDev :: [(DevName, [Float])] -> DevName -> (DevName, [Float])
-parseDev dat dev =
- case find ((==dev) . fst) dat of
- Nothing -> (dev, [0, 0, 0])
- Just (_, xs) ->
- let r = 4096 * xs !! 2
- w = 4096 * xs !! 6
- t = r + w
- rSp = speed r (xs !! 3)
- wSp = speed w (xs !! 7)
- sp = speed t (xs !! 3 + xs !! 7)
- speed x d = if d == 0 then 0 else x / d
- dat' = if length xs > 6
- then [sp, rSp, wSp, t, r, w]
- else [0, 0, 0, 0, 0, 0]
- in (dev, dat')
-
speedToStr :: Float -> String
speedToStr = showWithUnits 2 1 . (/ 1024)
sizeToStr :: Integer -> String
sizeToStr = showWithUnits 3 0 . fromIntegral
-findTempl :: DevName -> Path -> [(String, String)] -> String
-findTempl dev path disks =
- case find devOrPath disks of
- Just (_, t) -> t
- Nothing -> ""
- where devOrPath (d, _) = d == dev || d == path
-
-devTemplates :: [(String, String)]
- -> [(DevName, Path)]
- -> [(DevName, [Float])]
- -> [(String, [Float])]
-devTemplates disks mounted dat =
- map (\(d, p) -> (findTempl d p disks, findData d)) mounted
- where findData dev = case find ((==dev) . fst) dat of
- Nothing -> [0, 0, 0]
- Just (_, xs) -> xs
-
runDiskIO' :: DiskIOOpts -> (String, [Float]) -> Monitor String
runDiskIO' opts (tmp, xs) = do
s <- mapM (showWithColors speedToStr) xs
@@ -202,37 +116,25 @@ runDiskIO' opts (tmp, xs) = do
setConfigValue tmp template
parseTemplate $ s ++ b ++ vb ++ ipat
-runDiskIO :: DevDataRef -> [(String, String)] -> [String] -> Monitor String
+runDiskIO :: MD.DevDataRef -> [(String, String)] -> [String] -> Monitor String
runDiskIO dref disks argv = do
opts <- io $ parseOptsWith dioOptions dioDefaultOpts argv
- dev <- io $ mountedOrDiskDevices (map fst disks)
- dat <- io $ mountedData dref (map fst dev)
- strs <- mapM (runDiskIO' opts) $ devTemplates disks dev dat
+ stats <- io $ MD.fetchDataIO dref disks
+ mounted <- io $ MD.fetchDataUsage disks
+ strs <- mapM (runDiskIO' opts) $ devTemplates disks (map fst mounted) stats
return $ (if contiguous opts then concat else unwords) strs
startDiskIO :: [(String, String)] ->
[String] -> Int -> (String -> IO ()) -> IO ()
startDiskIO disks args rate cb = do
- dev <- mountedOrDiskDevices (map fst disks)
- dref <- newIORef (map (\d -> (fst d, repeat 0)) dev)
- _ <- mountedData dref (map fst dev)
+ dref <- MD.initializeDevDataRef disks
runM args diskIOConfig (runDiskIO dref disks) rate cb
-fsStats :: String -> IO [Integer]
-fsStats path = do
- stats <- getFileSystemStats path
- case stats of
- Nothing -> return [0, 0, 0]
- Just f -> let tot = fsStatByteCount f
- free = fsStatBytesAvailable f
- used = fsStatBytesUsed f
- in return [tot, free, used]
-
-runDiskU' :: DiskUOpts -> String -> String -> Monitor String
-runDiskU' opts tmp path = do
+runDiskU' :: DiskUOpts -> String -> [Integer] -> Monitor String
+runDiskU' opts tmp stat = do
setConfigValue tmp template
- [total, free, diff] <- io (handle ign $ fsStats path)
- let strs = map sizeToStr [free, diff]
+ let [total, free, diff] = stat
+ strs = map sizeToStr [free, diff]
freep = if total > 0 then free * 100 `div` total else 0
fr = fromIntegral freep / 100
s <- zipWithM showWithColors' strs [freep, 100 - freep]
@@ -244,12 +146,27 @@ runDiskU' opts tmp path = do
uvb <- showVerticalBar (fromIntegral $ 100 - freep) (1 - fr)
uipat <- showIconPattern (usedIconPattern opts) (1 - fr)
parseTemplate $ [sizeToStr total] ++ s ++ sp ++ [fb,fvb,fipat,ub,uvb,uipat]
- where ign = const (return [0, 0, 0]) :: SomeException -> IO [Integer]
-
runDiskU :: [(String, String)] -> [String] -> Monitor String
runDiskU disks argv = do
- devs <- io $ mountedDevices (map fst disks)
opts <- io $ parseOptsWith duOptions duDefaultOpts argv
- strs <- mapM (\(d, p) -> runDiskU' opts (findTempl d p disks) p) devs
+ stats <- io $ MD.fetchDataUsage disks
+ strs <- mapM (\((d, p), stat) -> runDiskU' opts (findTempl d p disks) stat) stats
return $ (if contiguousU opts then concat else unwords) strs
+
+findTempl :: DevName -> Path -> [(String, String)] -> String
+findTempl dev path disks =
+ case find devOrPath disks of
+ Just (_, t) -> t
+ Nothing -> ""
+ where devOrPath (d, _) = d == dev || d == path
+
+devTemplates :: [(String, String)]
+ -> [(DevName, Path)]
+ -> [(DevName, [Float])]
+ -> [(String, [Float])]
+devTemplates disks mounted dat =
+ map (\(d, p) -> (findTempl d p disks, findData d)) mounted
+ where findData dev = case find ((==dev) . fst) dat of
+ Nothing -> [0, 0, 0]
+ Just (_, xs) -> xs
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-11 02:03:50 +0000