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make pid file directory

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Joey Hess 2012-08-08 14:18:02 -04:00
parent 96950a3b40
commit e0cd977669
1 changed files with 1 additions and 0 deletions
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Utility/Daemon.hs
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@ -46,6 +46,7 @@ daemonize logfd pidfile changedirectory a = do
- Fails if the pid file is already locked by another process. -}
lockPidFile :: FilePath -> IO ()
lockPidFile file = do
createDirectoryIfMissing True (parentDir file)
fd <- openFd file ReadWrite (Just stdFileMode) defaultFileFlags
locked <- catchMaybeIO $ setLock fd (WriteLock, AbsoluteSeek, 0, 0)
fd' <- openFd newfile ReadWrite (Just stdFileMode) defaultFileFlags