controller

Documentation

Index

• Constants
• func IsDecidedMsg(share *spectypes.Share, signedDecided *specqbft.SignedMessage) bool
• func ValidateDecided(config qbft.IConfig, signedDecided *specqbft.SignedMessage, ...) error
• func ValidateFutureMsg(config qbft.IConfig, msg *specqbft.SignedMessage, ...) error
• type Controller
  • func NewController(identifier []byte, share *spectypes.Share, domain spectypes.DomainType, ...) *Controller
  • func (c *Controller) BaseMsgValidation(msg *specqbft.SignedMessage) error
  • func (c *Controller) CanStartInstance() error
  • func (c *Controller) Decode(data []byte) error
  • func (c *Controller) Encode() ([]byte, error)
  • func (c *Controller) GetConfig() qbft.IConfig
  • func (c *Controller) GetIdentifier() []byte
  • func (c *Controller) GetRoot() ([]byte, error)
  • func (c *Controller) InstanceForHeight(height specqbft.Height) *instance.Instance
  • func (c *Controller) LoadHighestInstance(identifier []byte) error
  • func (c *Controller) OnTimeout(msg types.EventMsg) error
  • func (c *Controller) ProcessMsg(msg *specqbft.SignedMessage) (*specqbft.SignedMessage, error)
  • func (c *Controller) SaveInstance(i *instance.Instance, msg *specqbft.SignedMessage) error
  • func (c *Controller) StartNewInstance(value []byte) error
  • func (c *Controller) UponDecided(msg *specqbft.SignedMessage) (*specqbft.SignedMessage, error)
  • func (c *Controller) UponExistingInstanceMsg(msg *specqbft.SignedMessage) (*specqbft.SignedMessage, error)
  • func (c *Controller) UponFutureMsg(msg *specqbft.SignedMessage) (*specqbft.SignedMessage, error)
• type InstanceContainer
  • func (i InstanceContainer) FindInstance(height specqbft.Height) *instance.Instance
  • func (i *InstanceContainer) String() string
• type NewDecidedHandler

Constants

const (
	// InstanceContainerDefaultCapacity is the default capacity for InstanceContainer.
	InstanceContainerDefaultCapacity int = 5

	// InstanceContainerTestCapacity is the capacity for InstanceContainer used in tests.
	InstanceContainerTestCapacity int = 1024
)

Functions

func IsDecidedMsg

func IsDecidedMsg(share *spectypes.Share, signedDecided *specqbft.SignedMessage) bool

IsDecidedMsg returns true if signed commit has all quorum sigs

func ValidateDecided

func ValidateDecided(
	config qbft.IConfig,
	signedDecided *specqbft.SignedMessage,
	share *spectypes.Share,
) error

func ValidateFutureMsg

func ValidateFutureMsg(
	config qbft.IConfig,
	msg *specqbft.SignedMessage,
	operators []*spectypes.Operator,
) error

Types

type Controller

type Controller struct {
	Identifier []byte
	Height     specqbft.Height // incremental Height for InstanceContainer
	// StoredInstances stores the last HistoricalInstanceCapacity in an array for message processing purposes.
	StoredInstances InstanceContainer
	// FutureMsgsContainer holds all msgs from a higher height
	FutureMsgsContainer map[spectypes.OperatorID]specqbft.Height // maps msg signer to height of higher height received msgs
	Domain              spectypes.DomainType
	Share               *spectypes.Share
	NewDecidedHandler   NewDecidedHandler `json:"-"`
	// contains filtered or unexported fields
}

Controller is a QBFT coordinator responsible for starting and following the entire life cycle of multiple QBFT InstanceContainer

func NewController

func NewController(
	identifier []byte,
	share *spectypes.Share,
	domain spectypes.DomainType,
	config qbft.IConfig,
	fullNode bool,
) *Controller

func (*Controller) BaseMsgValidation

func (c *Controller) BaseMsgValidation(msg *specqbft.SignedMessage) error

BaseMsgValidation returns error if msg is invalid (base validation)

func (*Controller) CanStartInstance

func (c *Controller) CanStartInstance() error

CanStartInstance returns nil if controller can start a new instance

func (*Controller) Decode

func (c *Controller) Decode(data []byte) error

Decode implementation

func (*Controller) Encode

func (c *Controller) Encode() ([]byte, error)

Encode implementation

func (*Controller) GetConfig

func (c *Controller) GetConfig() qbft.IConfig

func (*Controller) GetIdentifier

func (c *Controller) GetIdentifier() []byte

GetIdentifier returns QBFT Identifier, used to identify messages

func (*Controller) GetRoot

func (c *Controller) GetRoot() ([]byte, error)

GetRoot returns the state's deterministic root

func (*Controller) InstanceForHeight

func (c *Controller) InstanceForHeight(height specqbft.Height) *instance.Instance

func (*Controller) LoadHighestInstance

func (c *Controller) LoadHighestInstance(identifier []byte) error

func (*Controller) OnTimeout

func (c *Controller) OnTimeout(msg types.EventMsg) error

OnTimeout is trigger upon timeout for the given height

func (*Controller) ProcessMsg

func (c *Controller) ProcessMsg(msg *specqbft.SignedMessage) (*specqbft.SignedMessage, error)

ProcessMsg processes a new msg, returns decided message or error

func (*Controller) SaveInstance

func (c *Controller) SaveInstance(i *instance.Instance, msg *specqbft.SignedMessage) error

SaveInstance saves the given instance to the storage.

func (*Controller) StartNewInstance

func (c *Controller) StartNewInstance(value []byte) error

StartNewInstance will start a new QBFT instance, if can't will return error

func (*Controller) UponDecided

func (c *Controller) UponDecided(msg *specqbft.SignedMessage) (*specqbft.SignedMessage, error)

UponDecided returns decided msg if decided, nil otherwise

func (*Controller) UponExistingInstanceMsg

func (c *Controller) UponExistingInstanceMsg(msg *specqbft.SignedMessage) (*specqbft.SignedMessage, error)

func (*Controller) UponFutureMsg

func (c *Controller) UponFutureMsg(msg *specqbft.SignedMessage) (*specqbft.SignedMessage, error)

type InstanceContainer

type InstanceContainer []*instance.Instance

InstanceContainer is a fixed-capacity container for instances.

func (InstanceContainer) FindInstance

func (i InstanceContainer) FindInstance(height specqbft.Height) *instance.Instance

func (*InstanceContainer) String

func (i *InstanceContainer) String() string

String returns a human-readable representation of the instances. Useful for debugging.

type NewDecidedHandler

type NewDecidedHandler func(msg *specqbft.SignedMessage)

NewDecidedHandler handles newly saved decided messages. it will be called in a new goroutine to avoid concurrency issues