diff options
Diffstat (limited to 'Monitors')
| -rw-r--r-- | Monitors/Cpu.hs | 45 |
1 files changed, 19 insertions, 26 deletions
diff --git a/Monitors/Cpu.hs b/Monitors/Cpu.hs index b67f772..f24b9ee 100644 --- a/Monitors/Cpu.hs +++ b/Monitors/Cpu.hs @@ -16,8 +16,9 @@ module Main where import Numeric import Control.Concurrent -import Text.ParserCombinators.Parsec +import Control.Concurrent.MVar +import qualified Data.ByteString.Lazy.Char8 as B data Config = Config { intervall :: Int @@ -41,40 +42,32 @@ config = defaultConfig -- Utilities -interSec :: IO () -interSec = threadDelay (intervall config) - -takeDigits :: Int -> Float -> Float -takeDigits d n = - read $ showFFloat (Just d) n "" - floatToPercent :: Float -> String floatToPercent n = showFFloat (Just 2) (n*100) "%" +fileCPU :: IO B.ByteString +fileCPU = B.readFile "/proc/stat" -run :: Parser [a] -> IO String -> IO [a] -run p input - = do a <- input - case (parse p "" a) of - Left _ -> return [] - Right x -> return x - -fileCPU :: IO String -fileCPU = readFile "/proc/stat" - - -getNumbers :: Parser Float -getNumbers = skipMany space >> many1 digit >>= \n -> return $ read n +getData :: MVar [Float] -> Int -> IO () +getData var d = + do threadDelay d + s <- fileCPU + modifyMVar_ var (\_ -> return $! cpuParser s) -parserCPU :: Parser [Float] -parserCPU = string "cpu" >> count 4 getNumbers +cpuParser :: B.ByteString -> [Float] +cpuParser = + map read . map B.unpack . tail . B.words . flip (!!) 0 . B.lines parseCPU :: IO [Float] parseCPU = - do a <- run parserCPU fileCPU - interSec - b <- run parserCPU fileCPU + do v1 <- newMVar [] + forkIO $! getData v1 0 + v2 <- newMVar [] + forkIO $! getData v2 500000 + threadDelay 750000 + a <- readMVar v1 + b <- readMVar v2 let dif = zipWith (-) b a tot = foldr (+) 0 dif percent = map (/ tot) dif |