Database.EJDB2.WAL

Documentation

data Options

Write ahead log (WAL) options.

Constructors

Options

Fields

• enabled :: !Bool

  WAL enabled

• checkCRCOnCheckpoint :: !Bool

  Check CRC32 sum of data blocks during checkpoint. Default: false

• savepointTimeoutSec :: !Word32

  Savepoint timeout seconds. Default: 10 sec

• checkpointTimeoutSec :: !Word32

  Checkpoint timeout seconds. Default: 300 sec (5 min);

• walBufferSz :: !Word64

  WAL file intermediate buffer size. Default: 8Mb

• checkpointBufferSz :: !Word8

  Checkpoint buffer size in bytes. Default: 1Gb

• walLockInterceptor :: !(FunPtr (CBool -> Ptr () -> IO RC))

  Optional function called before acquiring and after releasing. exclusive database lock byAL checkpoint thread. In the case of 'before loc first argument will be set to true

• walLockInterceptorOpaque :: !(Ptr ())

  Opaque data for walLockInterceptor

Instances

Storable Options

Defined in Database.EJDB2.WAL

Methods

sizeOf :: Options -> Int

alignment :: Options -> Int

peekElemOff :: Ptr Options -> Int -> IO Options

pokeElemOff :: Ptr Options -> Int -> Options -> IO ()

peekByteOff :: Ptr b -> Int -> IO Options

pokeByteOff :: Ptr b -> Int -> Options -> IO ()

peek :: Ptr Options -> IO Options

poke :: Ptr Options -> Options -> IO ()

zero :: Options

Create default Options