mirror of
https://gitlab.com/pulsechaincom/erigon-pulse.git
synced 2025-01-18 16:44:12 +00:00
d2286bff1c
* use NoValues cursor where possible * add ctx * fix broken logs * rebase master * rebase master * simplify generators * hack to measure space distribution * naive epoch and chunking implementation * make stateless loop cancelable * make stateless loop cancelable * remove one rlp layer * eth64 protocol support - add forkId to status message
31 lines
1.2 KiB
Go
31 lines
1.2 KiB
Go
package trie
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import "errors"
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func (t *Trie) ExtractWitness(blockNr uint64, trace bool, rs *ResolveSet) (*Witness, error) {
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return extractWitnessFromRootNode(t.root, blockNr, trace, rs)
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}
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func (t *Trie) ExtractWitnessForPrefix(prefix []byte, blockNr uint64, trace bool, rs *ResolveSet) (*Witness, error) {
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node, _, found := t.getNode(prefix, false)
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if !found {
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return nil, errors.New("no data found for given prefix")
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}
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return extractWitnessFromRootNode(node, blockNr, trace, rs)
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}
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// extractWitnessFromRootNode extracts a witness for a subtrie starting from the specified root
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// if hashOnly param is nil it will make a witness for the full subtrie,
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// if hashOnly param is set to a ResolveSet instance, it will make a witness for only the accounts/storages that were actually touched; other paths will be hashed.
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func extractWitnessFromRootNode(root node, blockNr uint64, trace bool, hashOnly HashOnly) (*Witness, error) {
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builder := NewWitnessBuilder(root, blockNr, trace)
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var limiter *MerklePathLimiter
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if hashOnly != nil {
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hr := newHasher(false)
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defer returnHasherToPool(hr)
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limiter = &MerklePathLimiter{hashOnly, hr.hash}
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}
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return builder.Build(limiter)
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}
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