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53fd00926f
Wire the NOMT binary merkle trie engine into geth's triedb/state framework. This adds two new packages: - triedb/nomtdb: backend implementing triedb.backend interface, manages flat state persistence in ethdb and delegates trie ops to nomt/db - trie/nomttrie: NomtTrie implementing state.Trie, accumulates LeafOps during block execution and flushes to NOMT engine on Hash()/Commit() Key design choices: - Single flat keyspace: accounts use keccak256(addr), storage uses keccak256(keccak256(addr) || keccak256(slot)) as 256-bit trie paths - OpenStorageTrie returns the account trie itself (no separate tries) - Flat state (account/storage values) stored in ethdb with prefixed keys - NOMT trie stores only hashes; reads delegate to ethdb flat state Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
22 lines
749 B
Go
22 lines
749 B
Go
// Package nomtdb implements the triedb backend for NOMT (Near-Optimal Merkle
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// Trie), a page-based binary merkle trie engine.
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//
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// NOMT handles only the trie structure (merkle pages). Flat key-value storage
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// (accounts, storage slots) is stored in geth's existing ethdb (PebbleDB)
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// under NOMT-specific key prefixes.
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package nomtdb
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// Config holds configuration for the NOMT triedb backend.
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type Config struct {
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// DataDir is the directory for NOMT's Bitbox storage files.
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DataDir string
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// HTCapacity is the number of hash table buckets. Must be a power of 2.
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// Defaults to 1<<20 (~1M buckets) if zero.
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HTCapacity uint64
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}
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// Defaults is the default configuration for the NOMT backend.
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var Defaults = &Config{
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HTCapacity: 1 << 20,
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}
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