mirror of
https://gitlab.com/pulsechaincom/erigon-pulse.git
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36 lines
1011 B
Go
36 lines
1011 B
Go
package span
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import (
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"github.com/ledgerwatch/erigon/consensus/bor/borcfg"
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)
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const (
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spanLength = 6400 // Number of blocks in a span
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zerothSpanEnd = 255 // End block of 0th span
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)
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// IDAt returns the corresponding span id for the given block number.
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func IDAt(blockNum uint64) uint64 {
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if blockNum > zerothSpanEnd {
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return 1 + (blockNum-zerothSpanEnd-1)/spanLength
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}
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return 0
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}
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// EndBlockNum returns the number of the last block in the given span.
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func EndBlockNum(spanID uint64) uint64 {
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if spanID > 0 {
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return spanID*spanLength + zerothSpanEnd
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}
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return zerothSpanEnd
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}
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// BlockInLastSprintOfSpan returns true if a block num is within the last sprint of a span and false otherwise.
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func BlockInLastSprintOfSpan(blockNum uint64, config *borcfg.BorConfig) bool {
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spanNum := IDAt(blockNum)
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endBlockNum := EndBlockNum(spanNum)
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sprintLen := config.CalculateSprintLength(blockNum)
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startBlockNum := endBlockNum - sprintLen + 1
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return startBlockNum <= blockNum && blockNum <= endBlockNum
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}
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