aeson / benchmarks / ReadFile.hs

{-# 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
    loop 0
    end <- getCurrentTime
    putStrLn $ "  " ++ show (diffUTCTime end start)
Tip: Filter by directory path e.g. /media app.js to search for public/media/app.js.
Tip: Use camelCasing e.g. ProjME to search for
Tip: Filter by extension type e.g. /repo .js to search for all .js files in the /repo directory.
Tip: Separate your search with spaces e.g. /ssh pom.xml to search for src/ssh/pom.xml.
Tip: Use ↑ and ↓ arrow keys to navigate and return to view the file.
Tip: You can also navigate files with Ctrl+j (next) and Ctrl+k (previous) and view the file with Ctrl+o.
Tip: You can also navigate files with Alt+j (next) and Alt+k (previous) and view the file with Alt+o.