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FIX don't hang if one of the process we need to kill has died

This commit is contained in:
Nathan Dwarshuis 2020-04-11 13:46:51 -04:00
parent 8dcbcd054b
commit e47e4fb7e6
1 changed files with 9 additions and 5 deletions
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4
lib/XMonad/Internal/Process.hs
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@ -17,6 +17,8 @@ import Control.Concurrent
import Control.Exception import Control.Exception
import Control.Monad import Control.Monad
import Data.Maybe
import System.Directory import System.Directory
import System.Exit import System.Exit
import System.IO import System.IO
@ -38,6 +40,8 @@ waitUntilExit pid = do
killHandle :: ProcessHandle -> IO () killHandle :: ProcessHandle -> IO ()
killHandle ph = do killHandle ph = do
ec <- getProcessExitCode ph
unless (isJust ec) $ do
pid <- getPid ph pid <- getPid ph
forM_ pid $ signalProcess sigTERM forM_ pid $ signalProcess sigTERM
-- this may fail if the process exits instantly and the handle -- this may fail if the process exits instantly and the handle