42 lines
1.3 KiB
Go
42 lines
1.3 KiB
Go
package finalizers
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import (
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"context"
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"fmt"
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"github.com/certusone/wormhole/node/pkg/watchers/evm/connectors"
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"go.uber.org/zap"
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)
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// MoonbeamFinalizer implements the finality check for Moonbeam.
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// Moonbeam can publish blocks before they are marked final. This means we need to sit on the block until a special "is finalized"
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// query returns true. The assumption is that every block number will eventually be published and finalized, it's just that the contents
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// of the block (and therefore the hash) might change if there is a rollback.
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type MoonbeamFinalizer struct {
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logger *zap.Logger
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connector connectors.Connector
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}
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func NewMoonbeamFinalizer(logger *zap.Logger, connector connectors.Connector) *MoonbeamFinalizer {
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return &MoonbeamFinalizer{
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logger: logger,
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connector: connector,
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}
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}
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func (m *MoonbeamFinalizer) IsBlockFinalized(ctx context.Context, block *connectors.NewBlock) (bool, error) {
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if block == nil {
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return false, fmt.Errorf("block is nil")
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}
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var finalized bool
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err := m.connector.RawCallContext(ctx, &finalized, "moon_isBlockFinalized", block.Hash.Hex())
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if err != nil {
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m.logger.Error("failed to check for finality", zap.String("eth_network", m.connector.NetworkName()), zap.Error(err))
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return false, err
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}
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return finalized, nil
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}
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