acid-state-0.15.0: Add ACID guarantees to any serializable Haskell data structure.

Safe Haskell	None
Language	Haskell2010

Data.Acid.Log

Documentation

data FileLog object Source #

Constructors

FileLog
Fields logIdentifier :: LogKey object logCurrent :: MVar FHandle logNextEntryId :: TVar EntryId logQueue :: TVar ([ByteString], [IO ()]) logThreads :: [ThreadId]

data LogKey object Source #

Constructors

LogKey
Fields logDirectory :: FilePath logPrefix :: String

type EntryId = Int Source #

openFileLog :: LogKey object -> IO (FileLog object) Source #

closeFileLog :: FileLog object -> IO () Source #

pushEntry :: SafeCopy object => FileLog object -> object -> IO () -> IO () Source #

pushAction :: FileLog object -> IO () -> IO () Source #

ensureLeastEntryId :: FileLog object -> EntryId -> IO () Source #

readEntriesFrom :: SafeCopy object => FileLog object -> EntryId -> IO [object] Source #

rollbackTo :: SafeCopy object => LogKey object -> EntryId -> IO () Source #

rollbackWhile :: SafeCopy object => LogKey object -> (object -> Bool) -> IO () Source #

newestEntry :: SafeCopy object => LogKey object -> IO (Maybe object) Source #

askCurrentEntryId :: FileLog object -> IO EntryId Source #

cutFileLog :: FileLog object -> IO EntryId Source #

archiveFileLog :: FileLog object -> EntryId -> IO () Source #