diff options
Diffstat (limited to 'Utility')
| -rw-r--r-- | Utility/Process.hs | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/Utility/Process.hs b/Utility/Process.hs index 6e0aef21c..cee727656 100644 --- a/Utility/Process.hs +++ b/Utility/Process.hs @@ -47,6 +47,7 @@ import System.Posix.IO #endif import Utility.Misc +import Utility.Exception type CreateProcessRunner = forall a. CreateProcess -> ((Maybe Handle, Maybe Handle, Maybe Handle, ProcessHandle) -> IO a) -> IO a @@ -141,13 +142,13 @@ createProcessSuccess :: CreateProcessRunner createProcessSuccess p a = createProcessChecked (forceSuccessProcess p) p a {- Runs createProcess, then an action on its handles, and then - - an action on its exit code. -} + - a checker action on its exit code, which must wait for the process. -} createProcessChecked :: (ProcessHandle -> IO b) -> CreateProcessRunner createProcessChecked checker p a = do t@(_, _, _, pid) <- createProcess p - r <- a t + r <- tryNonAsync $ a t _ <- checker pid - return r + either E.throw return r {- Leaves the process running, suitable for lazy streaming. - Note: Zombies will result, and must be waited on. -} |