cache

Documentation

Index

• Variables
• func RandFullLocalServiceWithSquare(t *testing.T, n int) (*service.ShareService, *share.Root)
• func RandLightLocalServiceWithSquare(t *testing.T, n int) (*service.ShareService, *share.Root)
• type ShareAvailability
  • func NewShareAvailability(avail share.Availability, ds datastore.Batching) *ShareAvailability
  • func (ca *ShareAvailability) Close(ctx context.Context) error
  • func (ca *ShareAvailability) ProbabilityOfAvailability() float64
  • func (ca *ShareAvailability) SharesAvailable(ctx context.Context, root *share.Root) error

Variables

var (
	// DefaultWriteBatchSize defines the size of the batched header write.
	// Headers are written in batches not to thrash the underlying Datastore with writes.
	// TODO(@Wondertan, @renaynay): Those values must be configurable and proper defaults should be set
	// for specific node  type. (#709)
	DefaultWriteBatchSize = 2048
)

Functions

func RandFullLocalServiceWithSquare

func RandFullLocalServiceWithSquare(t *testing.T, n int) (*service.ShareService, *share.Root)

RandFullLocalServiceWithSquare is the same as full.RandServiceWithSquare, except the share.Availability is wrapped with cache availability.

func RandLightLocalServiceWithSquare

func RandLightLocalServiceWithSquare(t *testing.T, n int) (*service.ShareService, *share.Root)

RandLightLocalServiceWithSquare is the same as light.RandServiceWithSquare, except the share.Availability is wrapped with cache availability.

Types

type ShareAvailability

type ShareAvailability struct {
	// contains filtered or unexported fields
}

ShareAvailability wraps a given share.Availability (whether it's light or full) and stores the results of a successful sampling routine over a given Root's hash to disk.

func NewShareAvailability

func NewShareAvailability(avail share.Availability, ds datastore.Batching) *ShareAvailability

NewShareAvailability wraps the given share.Availability with an additional datastore for sampling result caching.

func (*ShareAvailability) Close

func (ca *ShareAvailability) Close(ctx context.Context) error

Close flushes all queued writes to disk.

func (*ShareAvailability) ProbabilityOfAvailability

func (ca *ShareAvailability) ProbabilityOfAvailability() float64

func (*ShareAvailability) SharesAvailable

func (ca *ShareAvailability) SharesAvailable(ctx context.Context, root *share.Root) error

SharesAvailable will store, upon success, the hash of the given Root to disk.