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module DPut where
import Control.Concurrent.STM
import qualified Data.Map.Strict as Map
import System.IO (stderr,hPutStrLn)
import Data.Maybe
import System.IO.Unsafe (unsafePerformIO)
data DebugTag = XAnnounce | XDHT | XOnion | XNetCrypto | XPing | XMisc
deriving (Eq,Ord,Show,Read)
{-# NOINLINE verbosityMap #-}
verbosityMap :: TVar (Map.Map DebugTag Bool)
verbosityMap = unsafePerformIO $ newTVarIO (Map.empty)
dput :: DebugTag -> String -> IO ()
dput tag msg
= do
mp <- atomically $ readTVar verbosityMap
if fromMaybe True (Map.lookup tag mp)
then System.IO.hPutStrLn stderr msg
else return ()
setQuiet :: DebugTag -> IO ()
setQuiet tag = atomically $ modifyTVar' (verbosityMap) (Map.insert tag False)
setVerbose :: DebugTag -> IO ()
setVerbose tag = atomically $ modifyTVar' (verbosityMap) (Map.insert tag True)
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