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| author | John Soo <jsoo1@asu.edu> | 2021-09-17 11:31:56 -0700 |
|---|---|---|
| committer | John Soo <jsoo1@asu.edu> | 2021-11-07 17:47:47 -0800 |
| commit | b2d9ca5a587c62ee38d04766689f19d3d4a13c1b (patch) | |
| tree | 2c42b65e83c6ecfbb70f475a2318239a8f2f841e /src/Xmobar/System/Signal.hs | |
| parent | 397953f1c626a3a81b9ef7280d961fb3ce340c56 (diff) | |
| download | xmobar-b2d9ca5a587c62ee38d04766689f19d3d4a13c1b.tar.gz xmobar-b2d9ca5a587c62ee38d04766689f19d3d4a13c1b.tar.bz2 | |
Let xmobar be used with a signal TMVar when used from other haskell.
Diffstat (limited to 'src/Xmobar/System/Signal.hs')
| -rw-r--r-- | src/Xmobar/System/Signal.hs | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/src/Xmobar/System/Signal.hs b/src/Xmobar/System/Signal.hs index ce39e10..3983654 100644 --- a/src/Xmobar/System/Signal.hs +++ b/src/Xmobar/System/Signal.hs @@ -60,12 +60,11 @@ parseSignalType :: String -> Maybe SignalType parseSignalType = fmap fst . safeHead . reads -- | Signal handling -setupSignalHandler :: IO (TMVar SignalType) -setupSignalHandler = do - tid <- newEmptyTMVarIO +setupSignalHandler :: TMVar SignalType -> IO () +setupSignalHandler tid = do installHandler sigUSR2 (Catch $ updatePosHandler tid) Nothing installHandler sigUSR1 (Catch $ changeScreenHandler tid) Nothing - return tid + return () updatePosHandler :: TMVar SignalType -> IO () updatePosHandler sig = do |