forked from cerc-io/ipld-eth-server
46 lines
1.6 KiB
Go
46 lines
1.6 KiB
Go
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// VulcanizeDB
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// Copyright © 2019 Vulcanize
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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package utils
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import "errors"
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func GetBlockHeightBins(startingBlock, endingBlock, batchSize uint64) ([][]uint64, error) {
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if endingBlock < startingBlock {
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return nil, errors.New("backfill: ending block number needs to be greater than starting block number")
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}
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if batchSize == 0 {
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return nil, errors.New("backfill: batchsize needs to be greater than zero")
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}
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length := endingBlock - startingBlock + 1
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numberOfBins := length / batchSize
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remainder := length % batchSize
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if remainder != 0 {
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numberOfBins++
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}
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blockRangeBins := make([][]uint64, numberOfBins)
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for i := range blockRangeBins {
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nextBinStart := startingBlock + batchSize
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blockRange := make([]uint64, 0, nextBinStart-startingBlock+1)
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for j := startingBlock; j < nextBinStart && j <= endingBlock; j++ {
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blockRange = append(blockRange, j)
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}
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startingBlock = nextBinStart
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blockRangeBins[i] = blockRange
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}
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return blockRangeBins, nil
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}
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