| Safe Haskell | Safe-Infered |
|---|
Ganeti.WConfd.Persistent
Contents
Description
Common types and functions for persistent resources
In particular: - locks - temporary reservations
- data Persistent a = Persistent {
- persName :: String
- persPath :: IO FilePath
- persEmpty :: a
- persCleanup :: ClientId -> WConfdMonad ()
- writePersistentAsyncTask :: JSON a => Persistent a -> IO a -> ResultG (AsyncWorker () ())
- readPersistent :: JSON a => Persistent a -> ResultG a
- persistentLocks :: Persistent GanetiLockWaiting
- persistentTempRes :: Persistent TempResState
Common definitions
The data type that collects all required operations
data Persistent a Source
A collection of operations needed for persisting a resource.
Constructors
| Persistent | |
Fields
| |
Common functions
writePersistentAsyncTask :: JSON a => Persistent a -> IO a -> ResultG (AsyncWorker () ())Source
Construct an asynchronous worker whose action is to save the
current state of the persistent state.
The worker's action reads the state using the given IO
action. Any inbetween changes to the file are tacitly ignored.
readPersistent :: JSON a => Persistent a -> ResultG aSource
Load a persistent data structure from disk.