From d235e2c6a5788ec4a6cff15a16f56b38a3876a0d Mon Sep 17 00:00:00 2001 From: Determinant Date: Sun, 28 Jun 2020 14:47:41 -0400 Subject: ... --- core/state/sync.go | 42 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 42 insertions(+) create mode 100644 core/state/sync.go (limited to 'core/state/sync.go') diff --git a/core/state/sync.go b/core/state/sync.go new file mode 100644 index 0000000..873395c --- /dev/null +++ b/core/state/sync.go @@ -0,0 +1,42 @@ +// Copyright 2015 The go-ethereum Authors +// This file is part of the go-ethereum library. +// +// The go-ethereum library is free software: you can redistribute it and/or modify +// it under the terms of the GNU Lesser General Public License as published by +// the Free Software Foundation, either version 3 of the License, or +// (at your option) any later version. +// +// The go-ethereum library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU Lesser General Public License for more details. +// +// You should have received a copy of the GNU Lesser General Public License +// along with the go-ethereum library. If not, see . + +package state + +import ( + "bytes" + + "github.com/ava-labs/go-ethereum/common" + "github.com/ava-labs/go-ethereum/ethdb" + "github.com/ava-labs/go-ethereum/rlp" + "github.com/ava-labs/go-ethereum/trie" +) + +// NewStateSync create a new state trie download scheduler. +func NewStateSync(root common.Hash, database ethdb.KeyValueReader, bloom *trie.SyncBloom) *trie.Sync { + var syncer *trie.Sync + callback := func(leaf []byte, parent common.Hash) error { + var obj Account + if err := rlp.Decode(bytes.NewReader(leaf), &obj); err != nil { + return err + } + syncer.AddSubTrie(obj.Root, 64, parent, nil) + syncer.AddRawEntry(common.BytesToHash(obj.CodeHash), 64, parent) + return nil + } + syncer = trie.NewSync(root, database, callback, bloom) + return syncer +} -- cgit v1.2.3