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| author |  Joey Hess <joey@kitenet.net> | 2013-03-10 21:36:13 -0400 |
|---|---|---|
| committer | Joey Hess <joey@kitenet.net> | 2013-03-10 22:10:26 -0400 |
| commit | 9d5b42222a10050fc733a49c427359f88e8be36c (patch) | |
| tree | 4fa0b1d6cf4a38ba772557dc4277fbd887020e46 /Utility/ThreadScheduler.hs | |
| parent | e107ddb4507d92303e14ebee3ccdec7662350031 (diff) | |
assistant: generate better commits for renames
Diffstat (limited to 'Utility/ThreadScheduler.hs')
| -rw-r--r-- | Utility/ThreadScheduler.hs | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/Utility/ThreadScheduler.hs b/Utility/ThreadScheduler.hs index a32606cfd..25ccbf25e 100644 --- a/Utility/ThreadScheduler.hs +++ b/Utility/ThreadScheduler.hs @@ -1,6 +1,6 @@ {- thread scheduling - - - Copyright 2012 Joey Hess <joey@kitenet.net> + - Copyright 2012, 2013 Joey Hess <joey@kitenet.net> - Copyright 2011 Bas van Dijk & Roel van Dijk - - Licensed under the GNU GPL version 3 or higher. @@ -14,6 +14,7 @@ import Common import Control.Concurrent import System.Posix.Signals +import Data.Time.Clock #ifndef __ANDROID__ import System.Posix.Terminal #endif @@ -21,6 +22,8 @@ import System.Posix.Terminal newtype Seconds = Seconds { fromSeconds :: Int } deriving (Eq, Ord, Show) +type Microseconds = Integer + {- Runs an action repeatedly forever, sleeping at least the specified number - of seconds in between. -} runEvery :: Seconds -> IO a -> IO a @@ -30,8 +33,6 @@ runEvery n a = forever $ do threadDelaySeconds :: Seconds -> IO () threadDelaySeconds (Seconds n) = unboundDelay (fromIntegral n * oneSecond) - where - oneSecond = 1000000 -- microseconds {- Like threadDelay, but not bounded by an Int. - @@ -42,7 +43,7 @@ threadDelaySeconds (Seconds n) = unboundDelay (fromIntegral n * oneSecond) - Taken from the unbounded-delay package to avoid a dependency for 4 lines - of code. -} -unboundDelay :: Integer -> IO () +unboundDelay :: Microseconds -> IO () unboundDelay time = do let maxWait = min time $ toInteger (maxBound :: Int) threadDelay $ fromInteger maxWait @@ -61,3 +62,6 @@ waitForTermination = do where check sig lock = void $ installHandler sig (CatchOnce $ putMVar lock ()) Nothing + +oneSecond :: Microseconds +oneSecond = 1000000 |