blob: e81371399c5bc9dab4097a35dec9bbfc1e28f9e0 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
|
-----------------------------------------------------------------------------
-- |
-- Module : Plugins.Monitors.Cpu
-- Copyright : (c) Andrea Rossato
-- License : BSD-style (see LICENSE)
--
-- Maintainer : Andrea Rossato <andrea.rossato@unibz.it>
-- Stability : unstable
-- Portability : unportable
--
-- A cpu monitor for Xmobar
--
-----------------------------------------------------------------------------
module Plugins.Monitors.Cpu where
import Plugins.Monitors.Common
import qualified Data.ByteString.Lazy.Char8 as B
cpuConfig :: IO MConfig
cpuConfig = mkMConfig
"Cpu: <total>" -- template
["total","user","nice","system","idle"] -- available replacements
cpuData :: IO [Float]
cpuData = do s <- B.readFile "/proc/stat"
return $ cpuParser s
cpuParser :: B.ByteString -> [Float]
cpuParser =
map read . map B.unpack . tail . B.words . flip (!!) 0 . B.lines
parseCPU :: IO [Float]
parseCPU =
do (a,b) <- doActionTwiceWithDelay 750000 cpuData
let dif = zipWith (-) b a
tot = foldr (+) 0 dif
percent = map (/ tot) dif
return percent
formatCpu :: [Float] -> Monitor [String]
formatCpu [] = return [""]
formatCpu xs = showPercentsWithColors $ (foldr (+) 0 $ take 3 xs) : xs
runCpu :: [String] -> Monitor String
runCpu _ =
do c <- io $ parseCPU
l <- formatCpu c
parseTemplate l
|
