47cb1a98b6
I am very doubtful that commit 613e747d91
was right about this doing anything, and I've verified that without it,
ctrl-c sends sigINT to child processes, and git-annex get does not
continue to the next item.
It seems likely that the real problem back then was something catching
the async exception.
Hard to see how installing a default signal handler could cause any
change from default behavior either.
One reason to want to get rid of this cruft now is that tasty has a
sigINT handler of its own, and this would override it.
(Tasty is not currently setting that handler up the way git-annex uses
it, due to a problem in tasty, but that will hopefully change.)
60 lines
1.4 KiB
Haskell
60 lines
1.4 KiB
Haskell
{- git-annex actions
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-
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- Copyright 2010-2015 Joey Hess <id@joeyh.name>
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-
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- Licensed under the GNU GPL version 3 or higher.
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-}
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{-# LANGUAGE CPP #-}
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module Annex.Action where
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import qualified Data.Map as M
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#ifndef mingw32_HOST_OS
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import System.Posix.Process (getAnyProcessStatus)
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import Utility.Exception
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#endif
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import Annex.Common
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import qualified Annex
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import Annex.Content
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import Annex.CatFile
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import Annex.CheckAttr
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import Annex.HashObject
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import Annex.CheckIgnore
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{- Actions to perform each time ran. -}
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startup :: Annex ()
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startup = return ()
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{- Cleanup actions. -}
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shutdown :: Bool -> Annex ()
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shutdown nocommit = do
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saveState nocommit
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sequence_ =<< M.elems <$> Annex.getState Annex.cleanup
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stopCoProcesses
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liftIO reapZombies -- zombies from long-running git processes
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{- Stops all long-running git query processes. -}
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stopCoProcesses :: Annex ()
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stopCoProcesses = do
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catFileStop
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checkAttrStop
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hashObjectStop
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checkIgnoreStop
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{- Reaps any zombie processes that may be hanging around.
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-
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- Warning: Not thread safe. Anything that was expecting to wait
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- on a process and get back an exit status is going to be confused
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- if this reap gets there first. -}
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reapZombies :: IO ()
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#ifndef mingw32_HOST_OS
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reapZombies =
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-- throws an exception when there are no child processes
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catchDefaultIO Nothing (getAnyProcessStatus False True)
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>>= maybe (return ()) (const reapZombies)
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#else
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reapZombies = return ()
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#endif
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