diff options
Diffstat (limited to 'src/Plugins/Monitors/Net.hs')
| -rw-r--r-- | src/Plugins/Monitors/Net.hs | 29 |
1 files changed, 17 insertions, 12 deletions
diff --git a/src/Plugins/Monitors/Net.hs b/src/Plugins/Monitors/Net.hs index 5954a77..7df8889 100644 --- a/src/Plugins/Monitors/Net.hs +++ b/src/Plugins/Monitors/Net.hs @@ -20,6 +20,7 @@ module Plugins.Monitors.Net ( import Plugins.Monitors.Common +import Data.Word (Word64) import Data.IORef (IORef, newIORef, readIORef, writeIORef) import Data.Time.Clock (UTCTime, getCurrentTime, diffUTCTime) import Control.Monad (forM, filterM, liftM) @@ -63,16 +64,20 @@ instance Show UnitPerSec where show MBs = "MB/s" show GBs = "GB/s" -data NetDev = NA - | NI String - | ND String Float Float deriving (Eq,Show,Read) +data NetDev num + = NA + | NI String + | ND String num num deriving (Eq,Show,Read) -type NetDevRef = IORef (NetDev, UTCTime) +type NetDevRawTotal = NetDev Word64 +type NetDevRate = NetDev Float + +type NetDevRef = IORef (NetDevRawTotal, UTCTime) -- The more information available, the better. -- Note that names don't matter. Therefore, if only the names differ, -- a compare evaluates to EQ while (==) evaluates to False. -instance Ord NetDev where +instance Ord num => Ord (NetDev num) where compare NA NA = EQ compare NA _ = LT compare _ NA = GT @@ -104,7 +109,7 @@ isUp d = do operstate <- B.readFile (operstateDir d) return $ (B.unpack . head . B.lines) operstate `elem` ["up", "unknown"] -readNetDev :: [String] -> IO NetDev +readNetDev :: [String] -> IO NetDevRawTotal readNetDev (d:x:y:_) = do up <- isUp d return (if up then ND d (r x) (r y) else NI d) @@ -113,7 +118,7 @@ readNetDev (d:x:y:_) = do readNetDev _ = return NA -netParser :: B.ByteString -> IO [NetDev] +netParser :: B.ByteString -> IO [NetDevRawTotal] netParser = mapM (readNetDev . splitDevLine) . readDevLines where readDevLines = drop 2 . B.lines splitDevLine = selectCols . wordsBy (`elem` " :") . B.unpack @@ -122,7 +127,7 @@ netParser = mapM (readNetDev . splitDevLine) . readDevLines [] -> [] s' -> w : wordsBy f s'' where (w, s'') = break f s' -findNetDev :: String -> IO NetDev +findNetDev :: String -> IO NetDevRawTotal findNetDev dev = do nds <- B.readFile "/proc/net/dev" >>= netParser case filter isDev nds of @@ -145,7 +150,7 @@ formatNet mipat d = do x <- showWithColors (str s) d return (x, b, vb, ipat) -printNet :: NetOpts -> NetDev -> Monitor String +printNet :: NetOpts -> NetDevRate -> Monitor String printNet opts nd = case nd of ND d r t -> do @@ -155,7 +160,7 @@ printNet opts nd = NI _ -> return "" NA -> getConfigValue naString -parseNet :: NetDevRef -> String -> IO NetDev +parseNet :: NetDevRef -> String -> IO NetDevRate parseNet nref nd = do (n0, t0) <- readIORef nref n1 <- findNetDev nd @@ -163,7 +168,7 @@ parseNet nref nd = do writeIORef nref (n1, t1) let scx = realToFrac (diffUTCTime t1 t0) scx' = if scx > 0 then scx else 1 - rate da db = takeDigits 2 $ (db - da) / scx' + rate da db = takeDigits 2 $ fromIntegral (db - da) / scx' diffRate (ND d ra ta) (ND _ rb tb) = ND d (rate ra rb) (rate ta tb) diffRate (NI d) _ = NI d diffRate _ (NI d) = NI d @@ -176,7 +181,7 @@ runNet nref i argv = do opts <- io $ parseOpts argv printNet opts dev -parseNets :: [(NetDevRef, String)] -> IO [NetDev] +parseNets :: [(NetDevRef, String)] -> IO [NetDevRate] parseNets = mapM $ uncurry parseNet runNets :: [(NetDevRef, String)] -> [String] -> Monitor String |