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{-# LANGUAGE BangPatterns, OverloadedStrings #-}
import Control.DeepSeq
import Control.Exception
import Control.Monad
import Data.Aeson
import Data.Aeson.Parser
import Data.Attoparsec
import Data.Time.Clock
import System.Environment (getArgs)
import System.IO
import qualified Data.ByteString as B
main = do
(cnt:args) <- getArgs
let count = read cnt :: Int
forM_ args $ \arg -> bracket (openFile arg ReadMode) hClose $ \h -> do
putStrLn $ arg ++ ":"
start <- getCurrentTime
let loop !n
| n >= count = return ()
| otherwise = do
let go = do
s <- B.hGet h 16384
if B.null s
then loop (n+1)
else go
go
loop 0
end <- getCurrentTime
putStrLn $ " " ++ show (diffUTCTime end start)
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