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-rw-r--r--src/Plugins/Monitors/Disk.hs241
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diff --git a/src/Plugins/Monitors/Disk.hs b/src/Plugins/Monitors/Disk.hs
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--- a/src/Plugins/Monitors/Disk.hs
+++ /dev/null
@@ -1,241 +0,0 @@
------------------------------------------------------------------------------
--- |
--- Module : Plugins.Monitors.Disk
--- Copyright : (c) 2010, 2011, 2012, 2014 Jose A Ortega Ruiz
--- License : BSD-style (see LICENSE)
---
--- Maintainer : Jose A Ortega Ruiz <jao@gnu.org>
--- Stability : unstable
--- Portability : unportable
---
--- Disk usage and throughput monitors for Xmobar
---
------------------------------------------------------------------------------
-
-module Plugins.Monitors.Disk (diskUConfig, runDiskU, startDiskIO) where
-
-import Plugins.Monitors.Common
-import StatFS
-
-import Data.IORef (IORef, newIORef, readIORef, writeIORef)
-
-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
-
-data DiskIOOpts = DiskIOOpts
- { totalIconPattern :: Maybe IconPattern
- , writeIconPattern :: Maybe IconPattern
- , readIconPattern :: Maybe IconPattern
- }
-
-parseDiskIOOpts :: [String] -> IO DiskIOOpts
-parseDiskIOOpts argv =
- case getOpt Permute options argv of
- (o, _, []) -> return $ foldr id defaultOpts o
- (_, _, errs) -> ioError . userError $ concat errs
- where defaultOpts = DiskIOOpts
- { totalIconPattern = Nothing
- , writeIconPattern = Nothing
- , readIconPattern = Nothing
- }
- options =
- [ Option "" ["total-icon-pattern"] (ReqArg (\x o ->
- o { totalIconPattern = Just $ parseIconPattern x}) "") ""
- , Option "" ["write-icon-pattern"] (ReqArg (\x o ->
- o { writeIconPattern = Just $ parseIconPattern x}) "") ""
- , Option "" ["read-icon-pattern"] (ReqArg (\x o ->
- o { readIconPattern = Just $ parseIconPattern x}) "") ""
- ]
-
-diskIOConfig :: IO MConfig
-diskIOConfig = mkMConfig "" ["total", "read", "write"
- ,"totalbar", "readbar", "writebar"
- ,"totalvbar", "readvbar", "writevbar"
- ,"totalipat", "readipat", "writeipat"
- ]
-
-data DiskUOpts = DiskUOpts
- { freeIconPattern :: Maybe IconPattern
- , usedIconPattern :: Maybe IconPattern
- }
-
-parseDiskUOpts :: [String] -> IO DiskUOpts
-parseDiskUOpts argv =
- case getOpt Permute options argv of
- (o, _, []) -> return $ foldr id defaultOpts o
- (_, _, errs) -> ioError . userError $ concat errs
- where defaultOpts = DiskUOpts
- { freeIconPattern = Nothing
- , usedIconPattern = Nothing
- }
- options =
- [ Option "" ["free-icon-pattern"] (ReqArg (\x o ->
- o { freeIconPattern = Just $ parseIconPattern x}) "") ""
- , Option "" ["used-icon-pattern"] (ReqArg (\x o ->
- o { usedIconPattern = Just $ parseIconPattern x}) "") ""
- ]
-
-diskUConfig :: IO MConfig
-diskUConfig = mkMConfig ""
- [ "size", "free", "used", "freep", "usedp"
- , "freebar", "freevbar", "freeipat"
- , "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 rSp = speed (xs !! 2) (xs !! 3)
- wSp = speed (xs !! 6) (xs !! 7)
- sp = speed (xs !! 2 + xs !! 6) (xs !! 3 + xs !! 7)
- speed x t = if t == 0 then 0 else 500 * x / t
- dat' = if length xs > 6 then [sp, rSp, wSp] else [0, 0, 0]
- in (dev, dat')
-
-speedToStr :: Float -> String
-speedToStr = showWithUnits 2 1
-
-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
- b <- mapM (showLogBar 0.8) xs
- vb <- mapM (showLogVBar 0.8) xs
- ipat <- mapM (\(f,v) -> showLogIconPattern (f opts) 0.8 v)
- $ zip [totalIconPattern, readIconPattern, writeIconPattern] xs
- setConfigValue tmp template
- parseTemplate $ s ++ b ++ vb ++ ipat
-
-runDiskIO :: DevDataRef -> [(String, String)] -> [String] -> Monitor String
-runDiskIO dref disks argv = do
- opts <- io $ parseDiskIOOpts argv
- dev <- io $ mountedOrDiskDevices (map fst disks)
- dat <- io $ mountedData dref (map fst dev)
- strs <- mapM (runDiskIO' opts) $ devTemplates disks dev dat
- return $ 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)
- 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
- setConfigValue tmp template
- [total, free, diff] <- io (handle ign $ fsStats path)
- let 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]
- sp <- showPercentsWithColors [fr, 1 - fr]
- fb <- showPercentBar (fromIntegral freep) fr
- fvb <- showVerticalBar (fromIntegral freep) fr
- fipat <- showIconPattern (freeIconPattern opts) fr
- ub <- showPercentBar (fromIntegral $ 100 - freep) (1 - fr)
- 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 $ parseDiskUOpts argv
- strs <- mapM (\(d, p) -> runDiskU' opts (findTempl d p disks) p) devs
- return $ unwords strs
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-02 23:29:16 +0000