40ecf58d4b
This does not change the overall license of the git-annex program, which was already AGPL due to a number of sources files being AGPL already. Legally speaking, I'm adding a new license under which these files are now available; I already released their current contents under the GPL license. Now they're dual licensed GPL and AGPL. However, I intend for all my future changes to these files to only be released under the AGPL license, and I won't be tracking the dual licensing status, so I'm simply changing the license statement to say it's AGPL. (In some cases, others wrote parts of the code of a file and released it under the GPL; but in all cases I have contributed a significant portion of the code in each file and it's that code that is getting the AGPL license; the GPL license of other contributors allows combining with AGPL code.)
37 lines
1.1 KiB
Haskell
37 lines
1.1 KiB
Haskell
{- git-annex assistant push tracking
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-
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- Copyright 2012 Joey Hess <id@joeyh.name>
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-
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- Licensed under the GNU AGPL version 3 or higher.
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-}
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module Assistant.Pushes where
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import Assistant.Common
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import Assistant.Types.Pushes
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import Control.Concurrent.STM
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import Data.Time.Clock
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import qualified Data.Map as M
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{- Blocks until there are failed pushes.
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- Returns Remotes whose pushes failed a given time duration or more ago.
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- (This may be an empty list.) -}
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getFailedPushesBefore :: NominalDiffTime -> FailedPushMap -> Assistant [Remote]
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getFailedPushesBefore duration v = liftIO $ do
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m <- atomically $ readTMVar v
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now <- getCurrentTime
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return $ M.keys $ M.filter (not . toorecent now) m
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where
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toorecent now time = now `diffUTCTime` time < duration
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{- Modifies the map. -}
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changeFailedPushMap :: FailedPushMap -> (PushMap -> PushMap) -> Assistant ()
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changeFailedPushMap v f = liftIO $ atomically $
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store . f . fromMaybe M.empty =<< tryTakeTMVar v
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where
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{- tryTakeTMVar empties the TMVar; refill it only if
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- the modified map is not itself empty -}
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store m
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| m == M.empty = noop
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| otherwise = putTMVar v $! m
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