Function NewClientFromTrustedStore

light/client.go:212–264

NewClientFromTrustedStore initializes existing client from the trusted store. See NewClient

(
	chainID string,
	trustingPeriod time.Duration,
	primary provider.Provider,
	witnesses []provider.Provider,
	trustedStore store.Store,
	options ...Option)

//
// See NewClient
func NewClientFromTrustedStore(
	chainID string,
	trustingPeriod time.Duration,
	primary provider.Provider,
	witnesses []provider.Provider,
	trustedStore store.Store,
	options ...Option) (*Client, error) {

	c := &Client{
		chainID:          chainID,
		trustingPeriod:   trustingPeriod,
		verificationMode: skipping,
		trustLevel:       DefaultTrustLevel,
		maxRetryAttempts: defaultMaxRetryAttempts,
		maxClockDrift:    defaultMaxClockDrift,
		maxBlockLag:      defaultMaxBlockLag,
		primary:          primary,
		witnesses:        witnesses,
		trustedStore:     trustedStore,
		pruningSize:      defaultPruningSize,
		confirmationFn:   func(action string) bool { return true },
		quit:             make(chan struct{}),
		logger:           log.NewNopLogger(),
	}

	for _, o := range options {
		o(c)
	}

	// Validate the number of witnesses.
	if len(c.witnesses) == 0 {
		return nil, ErrNoWitnesses
	}

	// Verify witnesses are all on the same chain.
	for i, w := range witnesses {
		if w.ChainID() != chainID {
			return nil, fmt.Errorf("witness #%d: %v is on another chain %s, expected %s",
				i, w, w.ChainID(), chainID)
		}
	}

	// Validate trust level.
	if err := ValidateTrustLevel(c.trustLevel); err != nil {
		return nil, err
	}

	if err := c.restoreTrustedLightBlock(); err != nil {
		return nil, err
	}

	return c, nil
}

// restoreTrustedLightBlock loads the latest trusted light block from the store
func (c *Client) restoreTrustedLightBlock() error {