meta

Documentation

Overview

Package meta defines a chain metadata store for the ABCI application. Prior to using the methods, the tables should be initialized and updated to the latest schema version with InitializeMetaStore.

Index

• Variables
• func GetChainState(ctx context.Context, db sql.Executor) (int64, []byte, error)
• func InitializeMetaStore(ctx context.Context, db sql.DB) error
• func LoadParams(ctx context.Context, db sql.Executor) (*common.NetworkParameters, error)
• func SetChainState(ctx context.Context, db sql.TxMaker, height int64, appHash []byte) error
• func StoreDiff(ctx context.Context, db sql.TxMaker, original, new *common.NetworkParameters) error
• func StoreParams(ctx context.Context, db sql.TxMaker, params *common.NetworkParameters) error

Variables

var ErrParamsNotFound = errors.New("params not found")

Functions

func GetChainState

func GetChainState(ctx context.Context, db sql.Executor) (int64, []byte, error)

GetChainState returns height and app hash from the chain state store. If there is no recorded data, height will be -1 and app hash nil.

func InitializeMetaStore

func InitializeMetaStore(ctx context.Context, db sql.DB) error

InitializeMetaStore initializes the chain metadata store schema.

func LoadParams

func LoadParams(ctx context.Context, db sql.Executor) (*common.NetworkParameters, error)

LoadParams loads the consensus params from the store.

func SetChainState

func SetChainState(ctx context.Context, db sql.TxMaker, height int64, appHash []byte) error

SetChainState will update the current height and app hash.

func StoreDiff

func StoreDiff(ctx context.Context, db sql.TxMaker, original, new *common.NetworkParameters) error

StoreDiff stores the difference between two sets of consensus params. If the parameters are equal, no action is taken.

func StoreParams

func StoreParams(ctx context.Context, db sql.TxMaker, params *common.NetworkParameters) error

StoreParams stores the consensus params in the store.