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authorMichal Zielonka <michal.zielonka.8001@gmail.com>2021-10-07 23:25:09 +0200
committerMichal Zielonka <michal.zielonka.8001@gmail.com>2021-10-08 11:11:11 +0200
commitb99a8a6833a1b38882b463fd72784cd6d6f91d9e (patch)
tree9537dcfe5eff2108937bf9a2160a5f15a7a266e5 /src/Xmobar/Plugins/Monitors/Net.hs
parenta845465fec735d9818a61d078337653b5293da5c (diff)
downloadxmobar-b99a8a6833a1b38882b463fd72784cd6d6f91d9e.tar.gz
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try to reorganize modules per os
We should make better split os specify code for FreeBSD and Linux. Idea comes from @liskin.
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diff --git a/src/Xmobar/Plugins/Monitors/Net.hs b/src/Xmobar/Plugins/Monitors/Net.hs
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+-----------------------------------------------------------------------------
+-- |
+-- Module : Plugins.Monitors.Net
+-- Copyright : (c) 2011, 2012, 2013, 2014, 2017, 2020 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
+--
+
+-----------------------------------------------------------------------------
+
+{-# LANGUAGE CPP #-}
+
+module Xmobar.Plugins.Monitors.Net (
+ startNet
+ , startDynNet
+ ) where
+
+import Xmobar.Plugins.Monitors.Common
+import Xmobar.Plugins.Monitors.Net.Common (NetDev(..), NetDevInfo(..), NetDevRate, NetDevRef)
+import Data.IORef (newIORef, readIORef, writeIORef)
+import Data.Time.Clock (getCurrentTime, diffUTCTime)
+import System.Console.GetOpt
+
+#if defined(freebsd_HOST_OS)
+import qualified Xmobar.Plugins.Monitors.Net.FreeBSD as MN
+#else
+import qualified Xmobar.Plugins.Monitors.Net.Linux as MN
+#endif
+
+import Control.Monad (forM)
+
+type DevList = [String]
+
+parseDevList :: String -> DevList
+parseDevList = splitOnComma
+ where splitOnComma [] = [[]]
+ splitOnComma (',':xs) = [] : splitOnComma xs
+ splitOnComma (x:xs) =
+ let rest = splitOnComma xs
+ in (x : head rest) : tail rest
+
+data NetOpts = NetOpts
+ { rxIconPattern :: Maybe IconPattern
+ , txIconPattern :: Maybe IconPattern
+ , onlyDevList :: Maybe DevList
+ , upIndicator :: String
+ }
+
+defaultOpts :: NetOpts
+defaultOpts = NetOpts
+ { rxIconPattern = Nothing
+ , txIconPattern = Nothing
+ , onlyDevList = Nothing
+ , upIndicator = "+"
+ }
+
+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 }) "") ""
+ , Option "" ["up"] (ReqArg (\x o -> o { upIndicator = x }) "") ""
+ , Option "" ["devices"] (ReqArg (\x o ->
+ o { onlyDevList = Just $ parseDevList x }) "") ""
+ ]
+
+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"
+
+netConfig :: IO MConfig
+netConfig = mkMConfig
+ "<dev>: <rx>KB|<tx>KB" -- template
+ ["dev", "rx", "tx", "rxbar", "rxvbar", "rxipat", "txbar", "txvbar", "txipat", "up"] -- available replacements
+
+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
+ N d (ND 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, upIndicator opts]
+ N _ NI -> return ""
+ NA -> getConfigValue naString
+
+parseNet :: NetDevRef -> String -> IO NetDevRate
+parseNet nref nd = do
+ (n0, t0) <- readIORef nref
+ n1 <- MN.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 (N d (ND ra ta)) (N _ (ND rb tb)) = N d (ND (rate ra rb) (rate ta tb))
+ diffRate (N d NI) _ = N d NI
+ diffRate _ (N d NI) = N d NI
+ diffRate _ _ = NA
+ return $ diffRate n0 n1
+
+runNet :: NetDevRef -> String -> [String] -> Monitor String
+runNet nref i argv = do
+ dev <- io $ parseNet nref i
+ opts <- io $ parseOptsWith options defaultOpts argv
+ printNet opts dev
+
+parseNets :: [(NetDevRef, String)] -> IO [NetDevRate]
+parseNets = mapM $ uncurry parseNet
+
+runNets :: [(NetDevRef, String)] -> [String] -> Monitor String
+runNets refs argv = do
+ opts <- io $ parseOptsWith options defaultOpts argv
+ dev <- io $ parseActive $ filterRefs opts refs
+ printNet opts dev
+ where parseActive refs' = fmap selectActive (parseNets refs')
+ refInDevList opts' (_, refname') = case onlyDevList opts' of
+ Just theList -> refname' `elem` theList
+ Nothing -> True
+ filterRefs opts' refs' = case filter (refInDevList opts') refs' of
+ [] -> refs'
+ xs -> xs
+ 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 <- MN.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