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author | jao <jao@gnu.org> | 2018-11-25 15:10:29 +0000 |
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committer | jao <jao@gnu.org> | 2018-11-25 15:10:29 +0000 |
commit | 77df1ac30fa7af5948f7ff64f5fee9aed64552b3 (patch) | |
tree | 647a4eb67ff1c293a5c530538ee88fc0093b577a /src/lib/Xmobar/Plugins/Monitors/Net.hs | |
parent | e0d6da82de8d0d1cef98896164c6016b84e47068 (diff) | |
download | xmobar-77df1ac30fa7af5948f7ff64f5fee9aed64552b3.tar.gz xmobar-77df1ac30fa7af5948f7ff64f5fee9aed64552b3.tar.bz2 |
Back to app/src, since it seems they're the default convention for stack
Diffstat (limited to 'src/lib/Xmobar/Plugins/Monitors/Net.hs')
-rw-r--r-- | src/lib/Xmobar/Plugins/Monitors/Net.hs | 218 |
1 files changed, 0 insertions, 218 deletions
diff --git a/src/lib/Xmobar/Plugins/Monitors/Net.hs b/src/lib/Xmobar/Plugins/Monitors/Net.hs deleted file mode 100644 index 81a5f6b..0000000 --- a/src/lib/Xmobar/Plugins/Monitors/Net.hs +++ /dev/null @@ -1,218 +0,0 @@ ------------------------------------------------------------------------------ --- | --- Module : Plugins.Monitors.Net --- Copyright : (c) 2011, 2012, 2013, 2014, 2017 Jose Antonio Ortega Ruiz --- (c) 2007-2010 Andrea Rossato --- License : BSD-style (see LICENSE) --- --- Maintainer : Jose A. Ortega Ruiz <jao@gnu.org> --- Stability : unstable --- Portability : unportable --- --- A net device monitor for Xmobar --- ------------------------------------------------------------------------------ - -module Xmobar.Plugins.Monitors.Net ( - startNet - , startDynNet - ) where - -import Xmobar.Plugins.Monitors.Common - -import Data.Word (Word64) -import Data.IORef (IORef, newIORef, readIORef, writeIORef) -import Data.Time.Clock (UTCTime, getCurrentTime, diffUTCTime) -import Control.Monad (forM, filterM) -import System.Directory (getDirectoryContents, doesFileExist) -import System.FilePath ((</>)) -import System.Console.GetOpt -import System.IO.Error (catchIOError) - -import qualified Data.ByteString.Lazy.Char8 as B - -data NetOpts = NetOpts - { rxIconPattern :: Maybe IconPattern - , txIconPattern :: Maybe IconPattern - } - -defaultOpts :: NetOpts -defaultOpts = NetOpts - { rxIconPattern = Nothing - , txIconPattern = Nothing - } - -options :: [OptDescr (NetOpts -> NetOpts)] -options = - [ Option "" ["rx-icon-pattern"] (ReqArg (\x o -> - o { rxIconPattern = Just $ parseIconPattern x }) "") "" - , Option "" ["tx-icon-pattern"] (ReqArg (\x o -> - o { txIconPattern = Just $ parseIconPattern x }) "") "" - ] - -parseOpts :: [String] -> IO NetOpts -parseOpts argv = - case getOpt Permute options argv of - (o, _, []) -> return $ foldr id defaultOpts o - (_, _, errs) -> ioError . userError $ concat errs - -data UnitPerSec = Bs | KBs | MBs | GBs deriving (Eq,Enum,Ord) -data NetValue = NetValue Float UnitPerSec deriving (Eq,Show) - -instance Show UnitPerSec where - show Bs = "B/s" - show KBs = "KB/s" - show MBs = "MB/s" - show GBs = "GB/s" - -data NetDev num - = NA - | NI String - | ND String num num deriving (Eq,Show,Read) - -type NetDevRawTotal = NetDev Word64 -type NetDevRate = NetDev Float - -type NetDevRef = IORef (NetDevRawTotal, UTCTime) - --- The more information available, the better. --- Note that names don't matter. Therefore, if only the names differ, --- a compare evaluates to EQ while (==) evaluates to False. -instance Ord num => Ord (NetDev num) where - compare NA NA = EQ - compare NA _ = LT - compare _ NA = GT - compare (NI _) (NI _) = EQ - compare (NI _) ND {} = LT - compare ND {} (NI _) = GT - compare (ND _ x1 y1) (ND _ x2 y2) = - if downcmp /= EQ - then downcmp - else y1 `compare` y2 - where downcmp = x1 `compare` x2 - -netConfig :: IO MConfig -netConfig = mkMConfig - "<dev>: <rx>KB|<tx>KB" -- template - ["dev", "rx", "tx", "rxbar", "rxvbar", "rxipat", "txbar", "txvbar", "txipat"] -- available replacements - -operstateDir :: String -> FilePath -operstateDir d = "/sys/class/net" </> d </> "operstate" - -existingDevs :: IO [String] -existingDevs = getDirectoryContents "/sys/class/net" >>= filterM isDev - where isDev d | d `elem` excludes = return False - | otherwise = doesFileExist (operstateDir d) - excludes = [".", "..", "lo"] - -isUp :: String -> IO Bool -isUp d = flip catchIOError (const $ return False) $ do - operstate <- B.readFile (operstateDir d) - return $! (B.unpack . head . B.lines) operstate `elem` ["up", "unknown"] - -readNetDev :: [String] -> IO NetDevRawTotal -readNetDev (d:x:y:_) = do - up <- isUp d - return (if up then ND d (r x) (r y) else NI d) - where r s | s == "" = 0 - | otherwise = read s - -readNetDev _ = return NA - -netParser :: B.ByteString -> IO [NetDevRawTotal] -netParser = mapM (readNetDev . splitDevLine) . readDevLines - where readDevLines = drop 2 . B.lines - splitDevLine = selectCols . wordsBy (`elem` " :") . B.unpack - selectCols cols = map (cols!!) [0,1,9] - wordsBy f s = case dropWhile f s of - [] -> [] - s' -> w : wordsBy f s'' where (w, s'') = break f s' - -findNetDev :: String -> IO NetDevRawTotal -findNetDev dev = do - nds <- B.readFile "/proc/net/dev" >>= netParser - case filter isDev nds of - x:_ -> return x - _ -> return NA - where isDev (ND d _ _) = d == dev - isDev (NI d) = d == dev - isDev NA = False - -formatNet :: Maybe IconPattern -> Float -> Monitor (String, String, String, String) -formatNet mipat d = do - s <- getConfigValue useSuffix - dd <- getConfigValue decDigits - let str True v = showDigits dd d' ++ show u - where (NetValue d' u) = byteNetVal v - str False v = showDigits dd $ v / 1024 - b <- showLogBar 0.9 d - vb <- showLogVBar 0.9 d - ipat <- showLogIconPattern mipat 0.9 d - x <- showWithColors (str s) d - return (x, b, vb, ipat) - -printNet :: NetOpts -> NetDevRate -> Monitor String -printNet opts nd = - case nd of - ND d r t -> do - (rx, rb, rvb, ripat) <- formatNet (rxIconPattern opts) r - (tx, tb, tvb, tipat) <- formatNet (txIconPattern opts) t - parseTemplate [d,rx,tx,rb,rvb,ripat,tb,tvb,tipat] - NI _ -> return "" - NA -> getConfigValue naString - -parseNet :: NetDevRef -> String -> IO NetDevRate -parseNet nref nd = do - (n0, t0) <- readIORef nref - n1 <- findNetDev nd - t1 <- getCurrentTime - writeIORef nref (n1, t1) - let scx = realToFrac (diffUTCTime t1 t0) - scx' = if scx > 0 then scx else 1 - rate da db = takeDigits 2 $ fromIntegral (db - da) / scx' - diffRate (ND d ra ta) (ND _ rb tb) = ND d (rate ra rb) (rate ta tb) - diffRate (NI d) _ = NI d - diffRate _ (NI d) = NI d - diffRate _ _ = NA - return $ diffRate n0 n1 - -runNet :: NetDevRef -> String -> [String] -> Monitor String -runNet nref i argv = do - dev <- io $ parseNet nref i - opts <- io $ parseOpts argv - printNet opts dev - -parseNets :: [(NetDevRef, String)] -> IO [NetDevRate] -parseNets = mapM $ uncurry parseNet - -runNets :: [(NetDevRef, String)] -> [String] -> Monitor String -runNets refs argv = do - dev <- io $ parseActive refs - opts <- io $ parseOpts argv - printNet opts dev - where parseActive refs' = fmap selectActive (parseNets refs') - selectActive = maximum - -startNet :: String -> [String] -> Int -> (String -> IO ()) -> IO () -startNet i a r cb = do - t0 <- getCurrentTime - nref <- newIORef (NA, t0) - _ <- parseNet nref i - runM a netConfig (runNet nref i) r cb - -startDynNet :: [String] -> Int -> (String -> IO ()) -> IO () -startDynNet a r cb = do - devs <- existingDevs - refs <- forM devs $ \d -> do - t <- getCurrentTime - nref <- newIORef (NA, t) - _ <- parseNet nref d - return (nref, d) - runM a netConfig (runNets refs) r cb - -byteNetVal :: Float -> NetValue -byteNetVal v - | v < 1024**1 = NetValue v Bs - | v < 1024**2 = NetValue (v/1024**1) KBs - | v < 1024**3 = NetValue (v/1024**2) MBs - | otherwise = NetValue (v/1024**3) GBs |