mirror of
https://gitlab.com/pulsechaincom/erigon-pulse.git
synced 2024-12-31 16:21:21 +00:00
32 lines
754 B
Go
32 lines
754 B
Go
package parlia
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import (
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"math/rand"
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"github.com/ledgerwatch/erigon/common"
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)
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func backOffTime(snap *Snapshot, val common.Address) uint64 {
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if snap.inturn(val) {
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return 0
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} else {
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idx := snap.indexOfVal(val)
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if idx < 0 {
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// The backOffTime does not matter when a validator is not authorized.
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return 0
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}
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s := rand.NewSource(int64(snap.Number))
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r := rand.New(s) // nolint: gosec
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n := len(snap.Validators)
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backOffSteps := make([]uint64, 0, n)
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for idx := uint64(0); idx < uint64(n); idx++ {
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backOffSteps = append(backOffSteps, idx)
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}
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r.Shuffle(n, func(i, j int) {
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backOffSteps[i], backOffSteps[j] = backOffSteps[j], backOffSteps[i]
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})
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delay := initialBackOffTime + backOffSteps[idx]*wiggleTime
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return delay
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}
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}
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