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core: journal the snapshot inside leveldb, not a flat file

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Péter Szilágyi
2019-12-02 13:27:20 +02:00
parent d5d7c0c24b
commit fd39f722a3
7 changed files with 72 additions and 61 deletions
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5
core/rawdb/schema.go
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@ -41,9 +41,12 @@ var (
// fastTrieProgressKey tracks the number of trie entries imported during fast sync.
fastTrieProgressKey = []byte("TrieSync")
// snapshotRootKey tracks the number and hash of the last snapshot.
// snapshotRootKey tracks the hash of the last snapshot.
snapshotRootKey = []byte("SnapshotRoot")
// snapshotJournalKey tracks the in-memory diff layers across restarts.
snapshotJournalKey = []byte("SnapshotJournal")
// Data item prefixes (use single byte to avoid mixing data types, avoid `i`, used for indexes).
headerPrefix = []byte("h") // headerPrefix + num (uint64 big endian) + hash -> header
headerTDSuffix = []byte("t") // headerPrefix + num (uint64 big endian) + hash + headerTDSuffix -> td