rpc, node, mempool and start of ight client

light/client.go

@@ -372,7 +372,7 @@ func (c *Client) initializeWithTrustOptions(ctx context.Context, options TrustOp
 //  - header has not been verified yet and is therefore not in the store
 //
 // Safe for concurrent use by multiple goroutines.
-func (c *Client) TrustedLightBlock(height int64) (*types.LightBlock, error) {
+func (c *Client) TrustedLightBlock(height uint64) (*types.LightBlock, error) {
 	height, err := c.compareWithLatestHeight(height)
 	if err != nil {
 		return nil, err
@@ -380,7 +380,7 @@ func (c *Client) TrustedLightBlock(height int64) (*types.LightBlock, error) {
 	return c.trustedStore.LightBlock(height)
 }
 
-func (c *Client) compareWithLatestHeight(height int64) (int64, error) {
+func (c *Client) compareWithLatestHeight(height uint64) (uint64, error) {
 	latestHeight, err := c.LastTrustedHeight()
 	if err != nil {
 		return 0, fmt.Errorf("can't get last trusted height: %w", err)
@@ -805,7 +805,7 @@ func (c *Client) verifySkippingAgainstPrimary(
 // there are no trusted headers.
 //
 // Safe for concurrent use by multiple goroutines.
-func (c *Client) LastTrustedHeight() (int64, error) {
+func (c *Client) LastTrustedHeight() (uint64, error) {
 	return c.trustedStore.LastLightBlockHeight()
 }
 
@@ -813,7 +813,7 @@ func (c *Client) LastTrustedHeight() (int64, error) {
 // there are no trusted headers.
 //
 // Safe for concurrent use by multiple goroutines.
-func (c *Client) FirstTrustedHeight() (int64, error) {
+func (c *Client) FirstTrustedHeight() (uint64, error) {
 	return c.trustedStore.FirstLightBlockHeight()
 }
 
@@ -852,7 +852,7 @@ func (c *Client) Cleanup() error {
 
 // cleanupAfter deletes all headers & validator sets after +height+. It also
 // resets latestTrustedBlock to the latest header.
-func (c *Client) cleanupAfter(height int64) error {
+func (c *Client) cleanupAfter(height uint64) error {
 	prevHeight := c.latestTrustedBlock.Height
 
 	for {
@@ -972,7 +972,7 @@ func (c *Client) replacePrimaryProvider() error {
 // lightBlockFromPrimary retrieves the lightBlock from the primary provider
 // at the specified height. Handles dropout by the primary provider by swapping
 // with an alternative provider.
-func (c *Client) lightBlockFromPrimary(ctx context.Context, height int64) (*types.LightBlock, error) {
+func (c *Client) lightBlockFromPrimary(ctx context.Context, height uint64) (*types.LightBlock, error) {
 	c.providerMutex.Lock()
 	l, err := c.primary.LightBlock(ctx, height)
 	c.providerMutex.Unlock()

light/detector_test.go

@@ -20,9 +20,9 @@ import (
 func TestLightClientAttackEvidence_Lunatic(t *testing.T) {
 	// primary performs a lunatic attack
 	var (
-		latestHeight      = int64(10)
+		latestHeight      = uint64(10)
 		valSize           = 5
-		divergenceHeight  = int64(6)
+		divergenceHeight  = uint64(6)
 		primaryHeaders    = make(map[int64]*types.SignedHeader, latestHeight)
 		primaryValidators = make(map[int64]*types.ValidatorSet, latestHeight)
 	)

light/errors.go

@@ -50,8 +50,8 @@ var ErrFailedHeaderCrossReferencing = errors.New(
 // ErrVerificationFailed means either sequential or skipping verification has
 // failed to verify from header #1 to header #2 due to some reason.
 type ErrVerificationFailed struct {
-	From   int64
-	To     int64
+	From   uint64
+	To     uint64
 	Reason error
 }
 

light/helpers_test.go

@@ -120,7 +120,7 @@ func makeVote(header *types.Header, valset *types.ValidatorSet,
 	return vote
 }
 
-func genHeader(chainID string, height int64, bTime time.Time, txs types.Txs,
+func genHeader(chainID string, height uint64, bTime time.Time, txs types.Txs,
 	valset, nextValset *types.ValidatorSet, appHash, consHash, resHash []byte) *types.Header {
 
 	return &types.Header{

light/provider/provider.go

@@ -19,7 +19,7 @@ type Provider interface {
 	// issues, an error will be returned.
 	// If there's no LightBlock for the given height, ErrLightBlockNotFound
 	// error is returned.
-	LightBlock(ctx context.Context, height int64) (*types.LightBlock, error)
+	LightBlock(ctx context.Context, height uint64) (*types.LightBlock, error)
 
 	// ReportEvidence reports an evidence of misbehavior.
 	ReportEvidence(context.Context, types.Evidence) error

light/store/store.go

@@ -14,7 +14,7 @@ type Store interface {
 	// ValidatorSet (h: height).
 	//
 	// height must be > 0.
-	DeleteLightBlock(height int64) error
+	DeleteLightBlock(height uint64) error
 
 	// LightBlock returns the LightBlock that corresponds to the given
 	// height.
@@ -22,22 +22,22 @@ type Store interface {
 	// height must be > 0.
 	//
 	// If LightBlock is not found, ErrLightBlockNotFound is returned.
-	LightBlock(height int64) (*types.LightBlock, error)
+	LightBlock(height uint64) (*types.LightBlock, error)
 
 	// LastLightBlockHeight returns the last (newest) LightBlock height.
 	//
 	// If the store is empty, -1 and nil error are returned.
-	LastLightBlockHeight() (int64, error)
+	LastLightBlockHeight() (uint64, error)
 
 	// FirstLightBlockHeight returns the first (oldest) LightBlock height.
 	//
 	// If the store is empty, -1 and nil error are returned.
-	FirstLightBlockHeight() (int64, error)
+	FirstLightBlockHeight() (uint64, error)
 
 	// LightBlockBefore returns the LightBlock before a certain height.
 	//
 	// height must be > 0 && <= LastLightBlockHeight.
-	LightBlockBefore(height int64) (*types.LightBlock, error)
+	LightBlockBefore(height uint64) (*types.LightBlock, error)
 
 	// Prune removes headers & the associated validator sets when Store reaches a
 	// defined size (number of header & validator set pairs).

light/trust_options.go

@@ -31,7 +31,7 @@ type TrustOptions struct {
 
 	// Header's Height and Hash must both be provided to force the trusting of a
 	// particular header.
-	Height int64
+	Height uint64
 	Hash   []byte
 }