47 lines
1.2 KiB
Go
47 lines
1.2 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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"github.com/certusone/wormhole/node/pkg/watchers/interfaces"
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"go.uber.org/zap"
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)
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// ArbitrumFinalizer implements the finality check for Arbitrum.
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// Arbitrum blocks should not be considered finalized until they are finalized on Ethereum.
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type ArbitrumFinalizer struct {
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logger *zap.Logger
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l1Finalizer interfaces.L1Finalizer
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}
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func NewArbitrumFinalizer(logger *zap.Logger, l1Finalizer interfaces.L1Finalizer) *ArbitrumFinalizer {
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return &ArbitrumFinalizer{
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logger: logger,
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l1Finalizer: l1Finalizer,
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}
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}
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// IsBlockFinalized compares the number of the L1 block containing the Arbitrum block with the latest finalized block on Ethereum.
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func (a *ArbitrumFinalizer) 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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if block.L1BlockNumber == nil {
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return false, fmt.Errorf("l1 block number is nil")
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}
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latestL1Block := a.l1Finalizer.GetLatestFinalizedBlockNumber()
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if latestL1Block == 0 {
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// This happens on start up.
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return false, nil
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}
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isFinalized := block.L1BlockNumber.Uint64() <= latestL1Block
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return isFinalized, nil
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}
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