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Diffstat (limited to 'src/lib/Xmobar/Plugins/Monitors/CpuFreq.hs')
-rw-r--r-- | src/lib/Xmobar/Plugins/Monitors/CpuFreq.hs | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/src/lib/Xmobar/Plugins/Monitors/CpuFreq.hs b/src/lib/Xmobar/Plugins/Monitors/CpuFreq.hs new file mode 100644 index 0000000..1afedfa --- /dev/null +++ b/src/lib/Xmobar/Plugins/Monitors/CpuFreq.hs @@ -0,0 +1,44 @@ +----------------------------------------------------------------------------- +-- | +-- 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 +import Xmobar.Plugins.Monitors.CoreCommon + +-- | +-- 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 = + mkMConfig "Freq: <cpu0>" (map ((++) "cpu" . show) [0 :: Int ..]) + + +-- | +-- Function retrieves monitor string holding the cpu frequency (or +-- frequencies) +runCpuFreq :: [String] -> Monitor String +runCpuFreq _ = do + suffix <- getConfigValue useSuffix + ddigits <- getConfigValue decDigits + let path = ["/sys/devices/system/cpu/cpu", "/cpufreq/scaling_cur_freq"] + divisor = 1e6 :: Double + fmt x | x < 1 = if suffix then mhzFmt x ++ "MHz" + else ghzFmt x + | otherwise = ghzFmt x ++ if suffix then "GHz" else "" + mhzFmt x = show (round (x * 1000) :: Integer) + ghzFmt = showDigits ddigits + failureMessage <- getConfigValue naString + checkedDataRetrieval failureMessage [path] Nothing (/divisor) fmt |