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Diffstat (limited to 'testsuite/tests/concurrent/should_run/conc044.hs')
| -rw-r--r-- | testsuite/tests/concurrent/should_run/conc044.hs | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/testsuite/tests/concurrent/should_run/conc044.hs b/testsuite/tests/concurrent/should_run/conc044.hs new file mode 100644 index 0000000000..0ad4701f8b --- /dev/null +++ b/testsuite/tests/concurrent/should_run/conc044.hs @@ -0,0 +1,13 @@ +module Main where + +import GHC.Conc + +-- Create a new TVar, update it and check that it contains the expected value within +-- the transaction +main = do + putStr "Before\n" + t <- atomically ( newTVar 42 ) + r <- atomically ( do writeTVar t 17 + readTVar t) + putStr ("After " ++ (show r) ++ "\n") + |