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Diffstat (limited to 'testsuite/tests/concurrent/should_run/3429.hs')
-rw-r--r-- | testsuite/tests/concurrent/should_run/3429.hs | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/testsuite/tests/concurrent/should_run/3429.hs b/testsuite/tests/concurrent/should_run/3429.hs new file mode 100644 index 0000000000..8b12a8b1ff --- /dev/null +++ b/testsuite/tests/concurrent/should_run/3429.hs @@ -0,0 +1,22 @@ +import Control.Monad +import Control.Concurrent +import Control.Concurrent.MVar +import Control.Exception +import System.IO + +main :: IO () +main = do hSetBuffering stdout NoBuffering + replicateM_ 1000 doit + +doit :: IO () +doit = do v <- newMVar () + t <- forkIO (foo v) + threadDelay 1000 + killThread t + takeMVar v + putChar '.' + +foo :: MVar () -> IO () +foo v = do let loop = do withMVar v $ \x -> evaluate x + loop + loop |