-----------------------------------------------------------------------------
-- |
-- Module      :  Plugins.Monitors.CpuFreq
-- Copyright   :  (c) Juraj Hercek
-- License     :  BSD-style (see LICENSE)
--
-- Maintainer  :  Juraj Hercek <juhe_haskell@hck.sk>
-- Stability   :  unstable
-- Portability :  unportable
--
-- A cpu frequency monitor for Xmobar
--
-----------------------------------------------------------------------------

module Xmobar.Plugins.Monitors.CpuFreq where

import Xmobar.Plugins.Monitors.Common

-- |
-- Cpu frequency default configuration. Default template contains only
-- one core frequency, user should specify custom template in order to
-- get more cpu frequencies.
cpuFreqConfig :: IO MConfig
cpuFreqConfig :: IO MConfig
cpuFreqConfig =
  String -> [String] -> IO MConfig
mkMConfig String
"Freq: <cpu0>"
            ([String
"max", String
"min", String
"avg"] [String] -> [String] -> [String]
forall a. [a] -> [a] -> [a]
++ (Int -> String) -> [Int] -> [String]
forall a b. (a -> b) -> [a] -> [b]
map (String -> String -> String
forall a. [a] -> [a] -> [a]
(++) String
"cpu" (String -> String) -> (Int -> String) -> Int -> String
forall b c a. (b -> c) -> (a -> b) -> a -> c
. Int -> String
forall a. Show a => a -> String
show) [Int
0 :: Int ..])


-- |
-- Function retrieves monitor string holding the cpu frequency (or
-- frequencies)
runCpuFreq :: [String] -> Monitor String
runCpuFreq :: [String] -> Monitor String
runCpuFreq [String]
_ = do
  suffix <- Selector Bool -> Monitor Bool
forall a. Selector a -> Monitor a
getConfigValue Selector Bool
useSuffix
  ddigits <- getConfigValue decDigits
  let paths = [String
"/sys/devices/system/cpu/cpu", String
"/cpufreq/scaling_cur_freq"]
      divisor = Double
1e6 :: Double
      fmt Double
x | Double
x Double -> Double -> Bool
forall a. Ord a => a -> a -> Bool
< Double
1 = if Bool
suffix then Double -> String
forall {a}. RealFrac a => a -> String
mhzFmt Double
x String -> String -> String
forall a. [a] -> [a] -> [a]
++ String
"MHz"
                                else Double -> String
ghzFmt Double
x
            | Bool
otherwise = Double -> String
ghzFmt Double
x String -> String -> String
forall a. [a] -> [a] -> [a]
++ if Bool
suffix then String
"GHz" else String
""
      mhzFmt a
x = Integer -> String
forall a. Show a => a -> String
show (a -> Integer
forall b. Integral b => a -> b
forall a b. (RealFrac a, Integral b) => a -> b
round (a
x a -> a -> a
forall a. Num a => a -> a -> a
* a
1000) :: Integer)
      ghzFmt = Int -> Double -> String
forall a. RealFloat a => Int -> a -> String
showDigits Int
ddigits
      sts t a
xs = [t a -> a
forall a. Ord a => t a -> a
forall (t :: * -> *) a. (Foldable t, Ord a) => t a -> a
maximum t a
xs, t a -> a
forall a. Ord a => t a -> a
forall (t :: * -> *) a. (Foldable t, Ord a) => t a -> a
minimum t a
xs, t a -> a
forall a. Num a => t a -> a
forall (t :: * -> *) a. (Foldable t, Num a) => t a -> a
sum t a
xs a -> a -> a
forall a. Fractional a => a -> a -> a
/ Int -> a
forall a b. (Integral a, Num b) => a -> b
fromIntegral (t a -> Int
forall a. t a -> Int
forall (t :: * -> *) a. Foldable t => t a -> Int
length t a
xs)]
  vs <- checkedDataRead [paths]
  if null vs then getConfigValue naString
  else mapM (showWithColors fmt . (/divisor)) (sts vs ++ vs) >>= parseTemplate