From 50134d5b5c4baabdfb35c0aeb8bf53d29f009c4d Mon Sep 17 00:00:00 2001 From: jao Date: Wed, 21 Nov 2018 23:51:41 +0000 Subject: All sources moved inside src --- src/Xmobar/Plugins/Monitors/Top.hs | 195 ------------------------------------- 1 file changed, 195 deletions(-) delete mode 100644 src/Xmobar/Plugins/Monitors/Top.hs (limited to 'src/Xmobar/Plugins/Monitors/Top.hs') diff --git a/src/Xmobar/Plugins/Monitors/Top.hs b/src/Xmobar/Plugins/Monitors/Top.hs deleted file mode 100644 index d6df249..0000000 --- a/src/Xmobar/Plugins/Monitors/Top.hs +++ /dev/null @@ -1,195 +0,0 @@ ------------------------------------------------------------------------------ --- | --- Module : Plugins.Monitors.Top --- Copyright : (c) 2010, 2011, 2012, 2013, 2014, 2018 Jose A Ortega Ruiz --- License : BSD-style (see LICENSE) --- --- Maintainer : Jose A Ortega Ruiz --- Stability : unstable --- Portability : unportable --- --- Process activity and memory consumption monitors --- ------------------------------------------------------------------------------ - -{-# LANGUAGE ForeignFunctionInterface #-} -{-# LANGUAGE BangPatterns #-} - -module Xmobar.Plugins.Monitors.Top (startTop, topMemConfig, runTopMem) where - -import Xmobar.Plugins.Monitors.Common - -import Control.Exception (SomeException, handle) -import Data.IORef (IORef, newIORef, readIORef, writeIORef) -import Data.List (sortBy, foldl') -import Data.Ord (comparing) -import Data.Time.Clock (UTCTime, getCurrentTime, diffUTCTime) -import System.Directory (getDirectoryContents) -import System.FilePath (()) -import System.IO (IOMode(ReadMode), hGetLine, withFile) -import System.Posix.Unistd (SysVar(ClockTick), getSysVar) - -import Foreign.C.Types - -maxEntries :: Int -maxEntries = 10 - -intStrs :: [String] -intStrs = map show [1..maxEntries] - -topMemConfig :: IO MConfig -topMemConfig = mkMConfig "" - [ k ++ n | n <- intStrs , k <- ["name", "mem", "both"]] - -topConfig :: IO MConfig -topConfig = mkMConfig "" - ("no" : [ k ++ n | n <- intStrs - , k <- [ "name", "cpu", "both" - , "mname", "mem", "mboth"]]) - -foreign import ccall "unistd.h getpagesize" - c_getpagesize :: CInt - -pageSize :: Float -pageSize = fromIntegral c_getpagesize / 1024 - -processes :: IO [FilePath] -processes = fmap (filter isPid) (getDirectoryContents "/proc") - where isPid = (`elem` ['0'..'9']) . head - -statWords :: [String] -> [String] -statWords line@(x:pn:ppn:xs) = - if last pn == ')' then line else statWords (x:(pn ++ " " ++ ppn):xs) -statWords _ = replicate 52 "0" - -getProcessData :: FilePath -> IO [String] -getProcessData pidf = - handle ign $ withFile ("/proc" pidf "stat") ReadMode readWords - where readWords = fmap (statWords . words) . hGetLine - ign = const (return []) :: SomeException -> IO [String] - -memPages :: [String] -> String -memPages fs = fs!!23 - -ppid :: [String] -> String -ppid fs = fs!!3 - -skip :: [String] -> Bool -skip fs = length fs < 24 || memPages fs == "0" || ppid fs == "0" - -handleProcesses :: ([String] -> a) -> IO [a] -handleProcesses f = - fmap (foldl' (\a p -> if skip p then a else f p : a) []) - (processes >>= mapM getProcessData) - -showInfo :: String -> String -> Float -> Monitor [String] -showInfo nm sms mms = do - mnw <- getConfigValue maxWidth - mxw <- getConfigValue minWidth - let lsms = length sms - nmw = mnw - lsms - 1 - nmx = mxw - lsms - 1 - rnm = if nmw > 0 then padString nmw nmx " " True "" nm else nm - mstr <- showWithColors' sms mms - both <- showWithColors' (rnm ++ " " ++ sms) mms - return [nm, mstr, both] - -processName :: [String] -> String -processName = drop 1 . init . (!!1) - -sortTop :: [(String, Float)] -> [(String, Float)] -sortTop = sortBy (flip (comparing snd)) - -type MemInfo = (String, Float) - -meminfo :: [String] -> MemInfo -meminfo fs = (processName fs, pageSize * parseFloat (fs!!23)) - -meminfos :: IO [MemInfo] -meminfos = handleProcesses meminfo - -showMemInfo :: Float -> MemInfo -> Monitor [String] -showMemInfo scale (nm, rss) = - showInfo nm (showWithUnits 3 1 rss) (100 * rss / sc) - where sc = if scale > 0 then scale else 100 - -showMemInfos :: [MemInfo] -> Monitor [[String]] -showMemInfos ms = mapM (showMemInfo tm) ms - where tm = sum (map snd ms) - -runTopMem :: [String] -> Monitor String -runTopMem _ = do - mis <- io meminfos - pstr <- showMemInfos (sortTop mis) - parseTemplate $ concat pstr - -type Pid = Int -type TimeInfo = (String, Float) -type TimeEntry = (Pid, TimeInfo) -type Times = [TimeEntry] -type TimesRef = IORef (Times, UTCTime) - -timeMemEntry :: [String] -> (TimeEntry, MemInfo) -timeMemEntry fs = ((p, (n, t)), (n, r)) - where p = parseInt (head fs) - n = processName fs - t = parseFloat (fs!!13) + parseFloat (fs!!14) - (_, r) = meminfo fs - -timeMemEntries :: IO [(TimeEntry, MemInfo)] -timeMemEntries = handleProcesses timeMemEntry - -timeMemInfos :: IO (Times, [MemInfo], Int) -timeMemInfos = fmap res timeMemEntries - where res x = (sortBy (comparing fst) $ map fst x, map snd x, length x) - -combine :: Times -> Times -> Times -combine _ [] = [] -combine [] ts = ts -combine l@((p0, (n0, t0)):ls) r@((p1, (n1, t1)):rs) - | p0 == p1 && n0 == n1 = (p0, (n0, t1 - t0)) : combine ls rs - | p0 <= p1 = combine ls r - | otherwise = (p1, (n1, t1)) : combine l rs - -take' :: Int -> [a] -> [a] -take' m l = let !r = tk m l in length l `seq` r - where tk 0 _ = [] - tk _ [] = [] - tk n (x:xs) = let !r = tk (n - 1) xs in x : r - -topProcesses :: TimesRef -> Float -> IO (Int, [TimeInfo], [MemInfo]) -topProcesses tref scale = do - (t0, c0) <- readIORef tref - (t1, mis, len) <- timeMemInfos - c1 <- getCurrentTime - let scx = realToFrac (diffUTCTime c1 c0) * scale - !scx' = if scx > 0 then scx else scale - nts = map (\(_, (nm, t)) -> (nm, min 100 (t / scx'))) (combine t0 t1) - !t1' = take' (length t1) t1 - !nts' = take' maxEntries (sortTop nts) - !mis' = take' maxEntries (sortTop mis) - writeIORef tref (t1', c1) - return (len, nts', mis') - -showTimeInfo :: TimeInfo -> Monitor [String] -showTimeInfo (n, t) = - getConfigValue decDigits >>= \d -> showInfo n (showDigits d t) t - -showTimeInfos :: [TimeInfo] -> Monitor [[String]] -showTimeInfos = mapM showTimeInfo - -runTop :: TimesRef -> Float -> [String] -> Monitor String -runTop tref scale _ = do - (no, ps, ms) <- io $ topProcesses tref scale - pstr <- showTimeInfos ps - mstr <- showMemInfos ms - parseTemplate $ show no : concat (zipWith (++) pstr mstr) ++ repeat "N/A" - -startTop :: [String] -> Int -> (String -> IO ()) -> IO () -startTop a r cb = do - cr <- getSysVar ClockTick - c <- getCurrentTime - tref <- newIORef ([], c) - let scale = fromIntegral cr / 100 - _ <- topProcesses tref scale - runM a topConfig (runTop tref scale) r cb -- cgit v1.2.3