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core: implement background trie prefetcher

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Squashed from the following commits:

core/state: lazily init snapshot storage map
core/state: fix flawed meter on storage reads
core/state: make statedb/stateobjects reuse a hasher
core/blockchain, core/state: implement new trie prefetcher
core: make trie prefetcher deliver tries to statedb
core/state: refactor trie_prefetcher, export storage tries
blockchain: re-enable the next-block-prefetcher
state: remove panics in trie prefetcher
core/state/trie_prefetcher: address some review concerns

sq
This commit is contained in:
Martin Holst Swende
2020-02-05 13:12:09 +01:00
committed by Péter Szilágyi
parent 93a89b2681
commit 1e1865b73f
7 changed files with 395 additions and 34 deletions
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7
crypto/crypto_test.go
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@ -42,6 +42,13 @@ func TestKeccak256Hash(t *testing.T) {
checkhash(t, "Sha3-256-array", func(in []byte) []byte { h := Keccak256Hash(in); return h[:] }, msg, exp)
}
func TestKeccak256Hasher(t *testing.T) {
msg := []byte("abc")
exp, _ := hex.DecodeString("4e03657aea45a94fc7d47ba826c8d667c0d1e6e33a64a036ec44f58fa12d6c45")
hasher := NewKeccakState()
checkhash(t, "Sha3-256-array", func(in []byte) []byte { h := HashData(hasher, in); return h[:] }, msg, exp)
}
func TestToECDSAErrors(t *testing.T) {
if _, err := HexToECDSA("0000000000000000000000000000000000000000000000000000000000000000"); err == nil {
t.Fatal("HexToECDSA should've returned error")