ipld-eth-server/pkg/history/populate_blocks.go

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package history
import (
"github.com/8thlight/vulcanizedb/pkg/core"
"github.com/8thlight/vulcanizedb/pkg/repositories"
)
type Window struct {
LowerBound int
UpperBound int
MaxBlockNumber int
}
func (window Window) Size() int {
return int(window.UpperBound - window.LowerBound)
}
func PopulateMissingBlocks(blockchain core.Blockchain, repository repositories.Repository, startingBlockNumber int64) int {
lastBlock := blockchain.LastBlock().Int64()
blockRange := repository.MissingBlockNumbers(startingBlockNumber, lastBlock-1)
updateBlockRange(blockchain, repository, blockRange)
return len(blockRange)
}
func UpdateBlocksWindow(blockchain core.Blockchain, repository repositories.Repository, windowSize int) Window {
maxBlockNumber := blockchain.LastBlock().Int64()
upperBound := maxBlockNumber - int64(1)
lowerBound := upperBound - int64(windowSize)
blockRange := MakeRange(lowerBound, upperBound)
updateBlockRange(blockchain, repository, blockRange)
return Window{int(lowerBound), int(upperBound), int(maxBlockNumber)}
}
func updateBlockRange(blockchain core.Blockchain, repository repositories.Repository, blockNumbers []int64) int {
for _, blockNumber := range blockNumbers {
block := blockchain.GetBlockByNumber(blockNumber)
repository.CreateOrUpdateBlock(block)
}
return len(blockNumbers)
}
func MakeRange(min, max int64) []int64 {
a := make([]int64, max-min)
for i := range a {
a[i] = min + int64(i)
}
return a
}