diff options
Diffstat (limited to 'Remote/External.hs')
| -rw-r--r-- | Remote/External.hs | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/Remote/External.hs b/Remote/External.hs index b8a964480..250719641 100644 --- a/Remote/External.hs +++ b/Remote/External.hs @@ -266,7 +266,9 @@ fromExternal lck external extractor a = go (Just st) = run st go Nothing = do st <- startExternal $ externalType external - void $ liftIO $ atomically $ swapTMVar v st + void $ liftIO $ atomically $ do + void $ tryReadTMVar v + putTMVar v st {- Handle initial protocol startup; check the VERSION - the remote sends. -} |