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-rw-r--r--src/Utility/Exception.hs15
1 files changed, 8 insertions, 7 deletions
diff --git a/src/Utility/Exception.hs b/src/Utility/Exception.hs
index 13000e03..8b110ae6 100644
--- a/src/Utility/Exception.hs
+++ b/src/Utility/Exception.hs
@@ -20,7 +20,8 @@ module Utility.Exception (
catchNonAsync,
tryNonAsync,
tryWhenExists,
- catchHardwareFault,
+ catchIOErrorType,
+ IOErrorType(..)
) where
import Control.Monad.Catch as X hiding (Handler)
@@ -88,11 +89,11 @@ tryWhenExists a = do
v <- tryJust (guard . isDoesNotExistError) a
return (eitherToMaybe v)
-{- Catches only exceptions caused by hardware faults.
- - Ie, disk IO error. -}
-catchHardwareFault :: MonadCatch m => m a -> (IOException -> m a) -> m a
-catchHardwareFault a onhardwareerr = catchIO a onlyhw
+{- Catches only IO exceptions of a particular type.
+ - Ie, use HardwareFault to catch disk IO errors. -}
+catchIOErrorType :: MonadCatch m => IOErrorType -> (IOException -> m a) -> m a -> m a
+catchIOErrorType errtype onmatchingerr a = catchIO a onlymatching
where
- onlyhw e
- | ioeGetErrorType e == HardwareFault = onhardwareerr e
+ onlymatching e
+ | ioeGetErrorType e == errtype = onmatchingerr e
| otherwise = throwM e