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module Main where
import Types
import Hash
import Pty
import Control.Concurrent
import Control.Concurrent.Async
import Control.Concurrent.STM
import System.IO
import System.Process
import System.Exit
import qualified Data.ByteString as B
main :: IO ()
main = do
exitstatus <- go
putStrLn ""
putStrLn ">>> debug-me is exiting..."
exitWith exitstatus
where
go = withChildPty $ \p -> do
(Nothing, Nothing, Nothing, ph) <- createProcess $
onPty p (proc "bash" [])
let Master h = ptyMaster p
hSetBuffering stdin NoBuffering
hSetBuffering h NoBuffering
ithread <- async (forward stdin h ph 200000)
othread <- async (forward h stdout ph 0)
exitstatus <- waitForProcess ph
cancel ithread
cancel othread
return exitstatus
forward :: Handle -> Handle -> ProcessHandle -> Int -> IO ()
forward from to ph delay = do
b <- B.hGetSome from 1024
if b == B.empty
then do
terminateProcess ph
return ()
else do
threadDelay delay
B.hPut to b
hFlush to
forward from to ph delay
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