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|
-----------------------------------------------------------------------------
-- |
-- Module : Monitors.Mem
-- Copyright : (c) Andrea Rossato
-- License : BSD-style (see LICENSE)
--
-- Maintainer : Andrea Rossato <andrea.rossato@unibz.it>
-- Stability : unstable
-- Portability : unportable
--
-- A memory monitor for XMobar
--
-----------------------------------------------------------------------------
module Main where
import Monitors.Common
import Data.IORef
monitorConfig :: IO MConfig
monitorConfig =
do lc <- newIORef "#BFBFBF"
l <- newIORef 300
nc <- newIORef "#00FF00"
h <- newIORef 500
hc <- newIORef "#FF0000"
t <- newIORef "Mem: <usedratio>% (<cache>M)"
p <- newIORef package
u <- newIORef ""
a <- newIORef []
e <- newIORef ["total", "free", "buffer", "cache", "rest", "used", "usedratio"]
return $ MC nc l lc h hc t p u a e
fileMEM :: IO String
fileMEM = readFile "/proc/meminfo"
parseMEM :: IO [Float]
parseMEM =
do file <- fileMEM
let content = map words $ take 4 $ lines file
[total, free, buffer, cache] = map (\line -> (read $ line !! 1 :: Float) / 1024) content
rest = free + buffer + cache
used = total - rest
usedratio = used * 100 / total
return [total, free, buffer, cache, rest, used, usedratio]
formatMem :: [Float] -> Monitor [String]
formatMem x =
do let f n = show (takeDigits 2 n)
mapM (showWithColors f) x
package :: String
package = "xmb-mem"
runMem :: [String] -> Monitor String
runMem _ =
do m <- io $ parseMEM
l <- formatMem m
parseTemplate l
main :: IO ()
main =
do let af = runMem []
runMonitor monitorConfig af runMem
|
