app

Documentation

Index

• Constants
• type Application
  • func NewApplication(cfg *Config) (*Application, error)
  • func (app *Application) ApplySnapshotChunk(req abci.RequestApplySnapshotChunk) abci.ResponseApplySnapshotChunk
  • func (app *Application) CheckTx(req abci.RequestCheckTx) ocabci.ResponseCheckTx
  • func (app *Application) Commit() abci.ResponseCommit
  • func (app *Application) DeliverTx(req abci.RequestDeliverTx) abci.ResponseDeliverTx
  • func (app *Application) EndBlock(req abci.RequestEndBlock) abci.ResponseEndBlock
  • func (app *Application) Info(req abci.RequestInfo) abci.ResponseInfo
  • func (app *Application) InitChain(req abci.RequestInitChain) abci.ResponseInitChain
  • func (app *Application) ListSnapshots(req abci.RequestListSnapshots) abci.ResponseListSnapshots
  • func (app *Application) LoadSnapshotChunk(req abci.RequestLoadSnapshotChunk) abci.ResponseLoadSnapshotChunk
  • func (app *Application) OfferSnapshot(req abci.RequestOfferSnapshot) abci.ResponseOfferSnapshot
  • func (app *Application) Query(req abci.RequestQuery) abci.ResponseQuery
  • func (app *Application) Rollback() error
• type Config
  • func DefaultConfig(dir string) *Config
• type SnapshotStore
  • func NewSnapshotStore(dir string) (*SnapshotStore, error)
  • func (s *SnapshotStore) Create(state *State) (abci.Snapshot, error)
  • func (s *SnapshotStore) List() ([]*abci.Snapshot, error)
  • func (s *SnapshotStore) LoadChunk(height uint64, format uint32, chunk uint32) ([]byte, error)
• type State
  • func NewState(dir string, persistInterval uint64) (*State, error)
  • func (s *State) Commit() (uint64, []byte, error)
  • func (s *State) Export() ([]byte, error)
  • func (s *State) Get(key string) string
  • func (s *State) Import(height uint64, jsonBytes []byte) error
  • func (s *State) Rollback() error
  • func (s *State) Set(key, value string)

Constants

const E2EAppVersion = 999

Types

type Application

type Application struct {
	ocabci.BaseApplication
	// contains filtered or unexported fields
}

func NewApplication

func NewApplication(cfg *Config) (*Application, error)

NewApplication creates the application.

func (*Application) ApplySnapshotChunk

func (app *Application) ApplySnapshotChunk(req abci.RequestApplySnapshotChunk) abci.ResponseApplySnapshotChunk

ApplySnapshotChunk implements ABCI.

func (*Application) CheckTx

func (app *Application) CheckTx(req abci.RequestCheckTx) ocabci.ResponseCheckTx

CheckTx implements ABCI.

func (*Application) Commit

func (app *Application) Commit() abci.ResponseCommit

Commit implements ABCI.

func (*Application) DeliverTx

func (app *Application) DeliverTx(req abci.RequestDeliverTx) abci.ResponseDeliverTx

DeliverTx implements ABCI.

func (*Application) EndBlock

func (app *Application) EndBlock(req abci.RequestEndBlock) abci.ResponseEndBlock

EndBlock implements ABCI.

func (*Application) Info

func (app *Application) Info(req abci.RequestInfo) abci.ResponseInfo

Info implements ABCI.

func (*Application) InitChain

func (app *Application) InitChain(req abci.RequestInitChain) abci.ResponseInitChain

Info implements ABCI.

func (*Application) ListSnapshots

func (app *Application) ListSnapshots(req abci.RequestListSnapshots) abci.ResponseListSnapshots

ListSnapshots implements ABCI.

func (*Application) LoadSnapshotChunk

func (app *Application) LoadSnapshotChunk(req abci.RequestLoadSnapshotChunk) abci.ResponseLoadSnapshotChunk

LoadSnapshotChunk implements ABCI.

func (*Application) OfferSnapshot

func (app *Application) OfferSnapshot(req abci.RequestOfferSnapshot) abci.ResponseOfferSnapshot

OfferSnapshot implements ABCI.

func (*Application) Query

func (app *Application) Query(req abci.RequestQuery) abci.ResponseQuery

Query implements ABCI.

func (*Application) Rollback

func (app *Application) Rollback() error

type Config

type Config struct {
	// The directory with which state.json will be persisted in. Usually $HOME/.tendermintvrf/data
	Dir string `toml:"dir"`

	// SnapshotInterval specifies the height interval at which the application
	// will take state sync snapshots. Defaults to 0 (disabled).
	SnapshotInterval uint64 `toml:"snapshot_interval"`

	// RetainBlocks specifies the number of recent blocks to retain. Defaults to
	// 0, which retains all blocks. Must be greater that PersistInterval,
	// SnapshotInterval and EvidenceAgeHeight.
	RetainBlocks uint64 `toml:"retain_blocks"`

	// KeyType sets the curve that will be used by validators.
	// Options are ed25519 & secp256k1
	KeyType string `toml:"key_type"`

	// PersistInterval specifies the height interval at which the application
	// will persist state to disk. Defaults to 1 (every height), setting this to
	// 0 disables state persistence.
	PersistInterval uint64 `toml:"persist_interval"`

	// ValidatorUpdates is a map of heights to validator names and their power,
	// and will be returned by the ABCI application. For example, the following
	// changes the power of validator01 and validator02 at height 1000:
	//
	// [validator_update.1000]
	// validator01 = 20
	// validator02 = 10
	//
	// Specifying height 0 returns the validator update during InitChain. The
	// application returns the validator updates as-is, i.e. removing a
	// validator must be done by returning it with power 0, and any validators
	// not specified are not changed.
	//
	// height <-> pubkey <-> voting power
	ValidatorUpdates map[string]map[string]uint8 `toml:"validator_update"`

	// Add artificial delays to each of the main ABCI calls to mimic computation time
	// of the application
	PrepareProposalDelay time.Duration `toml:"prepare_proposal_delay"`
	ProcessProposalDelay time.Duration `toml:"process_proposal_delay"`
	CheckTxDelay         time.Duration `toml:"check_tx_delay"`
}

Config allows for the setting of high level parameters for running the e2e Application KeyType and ValidatorUpdates must be the same for all nodes running the same application.

func DefaultConfig

func DefaultConfig(dir string) *Config

type SnapshotStore

type SnapshotStore struct {
	sync.RWMutex
	// contains filtered or unexported fields
}

SnapshotStore stores state sync snapshots. Snapshots are stored simply as JSON files, and chunks are generated on-the-fly by splitting the JSON data into fixed-size chunks.

func NewSnapshotStore

func NewSnapshotStore(dir string) (*SnapshotStore, error)

NewSnapshotStore creates a new snapshot store.

func (*SnapshotStore) Create

func (s *SnapshotStore) Create(state *State) (abci.Snapshot, error)

Create creates a snapshot of the given application state's key/value pairs.

func (*SnapshotStore) List

func (s *SnapshotStore) List() ([]*abci.Snapshot, error)

List lists available snapshots.

func (*SnapshotStore) LoadChunk

func (s *SnapshotStore) LoadChunk(height uint64, format uint32, chunk uint32) ([]byte, error)

LoadChunk loads a snapshot chunk.

type State

type State struct {
	sync.RWMutex
	Height uint64
	Values map[string]string
	Hash   []byte
	// contains filtered or unexported fields
}

State is the application state.

func NewState

func NewState(dir string, persistInterval uint64) (*State, error)

NewState creates a new state.

func (*State) Commit

func (s *State) Commit() (uint64, []byte, error)

Commit commits the current state.

func (*State) Export

func (s *State) Export() ([]byte, error)

Export exports key/value pairs as JSON, used for state sync snapshots.

func (*State) Get

func (s *State) Get(key string) string

Get fetches a value. A missing value is returned as an empty string.

func (*State) Import

func (s *State) Import(height uint64, jsonBytes []byte) error

Import imports key/value pairs from JSON bytes, used for InitChain.AppStateBytes and state sync snapshots. It also saves the state once imported.

func (*State) Rollback

func (s *State) Rollback() error

func (*State) Set

func (s *State) Set(key, value string)

Set sets a value. Setting an empty value is equivalent to deleting it.