use basic_account in snapshot
This commit is contained in:
Robert Habermeier
parent
eb2b1ad5da
commit
5d2cf22ef4
@ -17,16 +17,17 @@
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//! Account state encoding and decoding
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use account_db::{AccountDB, AccountDBMut};
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use basic_account::BasicAccount;
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use snapshot::Error;
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use util::{U256, FixedHash, H256, Bytes, HashDB, SHA3_EMPTY, SHA3_NULL_RLP};
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use util::trie::{TrieDB, Trie};
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use rlp::{Rlp, RlpStream, Stream, UntrustedRlp, View};
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use rlp::{RlpStream, Stream, UntrustedRlp, View};
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use std::collections::HashSet;
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// An empty account -- these are replaced with RLP null data for a space optimization.
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const ACC_EMPTY: Account = Account {
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const ACC_EMPTY: BasicAccount = BasicAccount {
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nonce: U256([0, 0, 0, 0]),
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balance: U256([0, 0, 0, 0]),
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storage_root: SHA3_NULL_RLP,
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@ -59,165 +60,121 @@ impl CodeState {
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}
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}
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// An alternate account structure from ::account::Account.
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#[derive(PartialEq, Clone, Debug)]
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pub struct Account {
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nonce: U256,
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balance: U256,
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storage_root: H256,
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code_hash: H256,
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// walk the account's storage trie, returning an RLP item containing the
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// account properties and the storage.
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pub fn to_fat_rlp(acc: &BasicAccount, acct_db: &AccountDB, used_code: &mut HashSet<H256>) -> Result<Bytes, Error> {
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if acc == &ACC_EMPTY {
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return Ok(::rlp::NULL_RLP.to_vec());
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}
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let db = TrieDB::new(acct_db, &acc.storage_root)?;
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let mut pairs = Vec::new();
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for item in db.iter()? {
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let (k, v) = item?;
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pairs.push((k, v));
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}
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let mut stream = RlpStream::new_list(pairs.len());
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for (k, v) in pairs {
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stream.begin_list(2).append(&k).append(&&*v);
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}
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let pairs_rlp = stream.out();
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let mut account_stream = RlpStream::new_list(5);
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account_stream.append(&acc.nonce)
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.append(&acc.balance);
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// [has_code, code_hash].
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if acc.code_hash == SHA3_EMPTY {
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account_stream.append(&CodeState::Empty.raw()).append_empty_data();
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} else if used_code.contains(&acc.code_hash) {
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account_stream.append(&CodeState::Hash.raw()).append(&acc.code_hash);
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} else {
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match acct_db.get(&acc.code_hash) {
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Some(c) => {
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used_code.insert(acc.code_hash.clone());
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account_stream.append(&CodeState::Inline.raw()).append(&&*c);
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}
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None => {
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warn!("code lookup failed during snapshot");
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account_stream.append(&false).append_empty_data();
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}
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}
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}
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account_stream.append_raw(&pairs_rlp, 1);
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Ok(account_stream.out())
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}
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impl Account {
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// decode the account from rlp.
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pub fn from_thin_rlp(rlp: &[u8]) -> Self {
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let r: Rlp = Rlp::new(rlp);
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// decode a fat rlp, and rebuild the storage trie as we go.
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// returns the account structure along with its newly recovered code,
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// if it exists.
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pub fn from_fat_rlp(
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acct_db: &mut AccountDBMut,
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rlp: UntrustedRlp,
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) -> Result<(BasicAccount, Option<Bytes>), Error> {
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use util::{TrieDBMut, TrieMut};
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Account {
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nonce: r.val_at(0),
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balance: r.val_at(1),
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storage_root: r.val_at(2),
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code_hash: r.val_at(3),
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// check for special case of empty account.
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if rlp.is_empty() {
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return Ok((ACC_EMPTY, None));
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}
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let nonce = rlp.val_at(0)?;
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let balance = rlp.val_at(1)?;
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let code_state: CodeState = {
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let raw: u8 = rlp.val_at(2)?;
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CodeState::from(raw)?
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};
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// load the code if it exists.
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let (code_hash, new_code) = match code_state {
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CodeState::Empty => (SHA3_EMPTY, None),
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CodeState::Inline => {
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let code: Bytes = rlp.val_at(3)?;
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let code_hash = acct_db.insert(&code);
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(code_hash, Some(code))
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}
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CodeState::Hash => {
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let code_hash = rlp.val_at(3)?;
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(code_hash, None)
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}
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};
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let mut storage_root = H256::zero();
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{
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let mut storage_trie = TrieDBMut::new(acct_db, &mut storage_root);
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let pairs = rlp.at(4)?;
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for pair_rlp in pairs.iter() {
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let k: Bytes = pair_rlp.val_at(0)?;
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let v: Bytes = pair_rlp.val_at(1)?;
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storage_trie.insert(&k, &v)?;
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}
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}
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// encode the account to a standard rlp.
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pub fn to_thin_rlp(&self) -> Bytes {
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let mut stream = RlpStream::new_list(4);
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stream
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.append(&self.nonce)
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.append(&self.balance)
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.append(&self.storage_root)
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.append(&self.code_hash);
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let acc = BasicAccount {
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nonce: nonce,
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balance: balance,
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storage_root: storage_root,
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code_hash: code_hash,
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};
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stream.out()
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}
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// walk the account's storage trie, returning an RLP item containing the
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// account properties and the storage.
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pub fn to_fat_rlp(&self, acct_db: &AccountDB, used_code: &mut HashSet<H256>) -> Result<Bytes, Error> {
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if self == &ACC_EMPTY {
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return Ok(::rlp::NULL_RLP.to_vec());
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}
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let db = TrieDB::new(acct_db, &self.storage_root)?;
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let mut pairs = Vec::new();
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for item in db.iter()? {
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let (k, v) = item?;
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pairs.push((k, v));
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}
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let mut stream = RlpStream::new_list(pairs.len());
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for (k, v) in pairs {
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stream.begin_list(2).append(&k).append(&&*v);
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}
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let pairs_rlp = stream.out();
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let mut account_stream = RlpStream::new_list(5);
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account_stream.append(&self.nonce)
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.append(&self.balance);
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// [has_code, code_hash].
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if self.code_hash == SHA3_EMPTY {
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account_stream.append(&CodeState::Empty.raw()).append_empty_data();
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} else if used_code.contains(&self.code_hash) {
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account_stream.append(&CodeState::Hash.raw()).append(&self.code_hash);
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} else {
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match acct_db.get(&self.code_hash) {
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Some(c) => {
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used_code.insert(self.code_hash.clone());
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account_stream.append(&CodeState::Inline.raw()).append(&&*c);
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}
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None => {
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warn!("code lookup failed during snapshot");
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account_stream.append(&false).append_empty_data();
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}
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}
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}
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account_stream.append_raw(&pairs_rlp, 1);
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Ok(account_stream.out())
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}
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// decode a fat rlp, and rebuild the storage trie as we go.
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// returns the account structure along with its newly recovered code,
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// if it exists.
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pub fn from_fat_rlp(
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acct_db: &mut AccountDBMut,
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rlp: UntrustedRlp,
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) -> Result<(Self, Option<Bytes>), Error> {
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use util::{TrieDBMut, TrieMut};
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// check for special case of empty account.
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if rlp.is_empty() {
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return Ok((ACC_EMPTY, None));
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}
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let nonce = rlp.val_at(0)?;
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let balance = rlp.val_at(1)?;
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let code_state: CodeState = {
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let raw: u8 = rlp.val_at(2)?;
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CodeState::from(raw)?
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};
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// load the code if it exists.
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let (code_hash, new_code) = match code_state {
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CodeState::Empty => (SHA3_EMPTY, None),
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CodeState::Inline => {
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let code: Bytes = rlp.val_at(3)?;
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let code_hash = acct_db.insert(&code);
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(code_hash, Some(code))
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}
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CodeState::Hash => {
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let code_hash = rlp.val_at(3)?;
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(code_hash, None)
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}
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};
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let mut storage_root = H256::zero();
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{
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let mut storage_trie = TrieDBMut::new(acct_db, &mut storage_root);
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let pairs = rlp.at(4)?;
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for pair_rlp in pairs.iter() {
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let k: Bytes = pair_rlp.val_at(0)?;
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let v: Bytes = pair_rlp.val_at(1)?;
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storage_trie.insert(&k, &v)?;
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}
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}
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let acc = Account {
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nonce: nonce,
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balance: balance,
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storage_root: storage_root,
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code_hash: code_hash,
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};
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Ok((acc, new_code))
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}
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/// Get the account's code hash.
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pub fn code_hash(&self) -> &H256 {
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&self.code_hash
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}
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#[cfg(test)]
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pub fn storage_root_mut(&mut self) -> &mut H256 {
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&mut self.storage_root
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}
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Ok((acc, new_code))
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}
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#[cfg(test)]
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mod tests {
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use account_db::{AccountDB, AccountDBMut};
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use basic_account::BasicAccount;
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use tests::helpers::get_temp_state_db;
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use snapshot::tests::helpers::fill_storage;
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@ -227,26 +184,26 @@ mod tests {
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use std::collections::HashSet;
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use super::{ACC_EMPTY, Account};
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use super::{ACC_EMPTY, to_fat_rlp, from_fat_rlp};
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#[test]
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fn encoding_basic() {
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let mut db = get_temp_state_db();
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let addr = Address::random();
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let account = Account {
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let account = BasicAccount {
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nonce: 50.into(),
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balance: 123456789.into(),
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storage_root: SHA3_NULL_RLP,
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code_hash: SHA3_EMPTY,
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};
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let thin_rlp = account.to_thin_rlp();
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assert_eq!(Account::from_thin_rlp(&thin_rlp), account);
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let thin_rlp = ::rlp::encode(&account);
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assert_eq!(::rlp::decode::<BasicAccount>(&thin_rlp), account);
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let fat_rlp = account.to_fat_rlp(&AccountDB::new(db.as_hashdb(), &addr), &mut Default::default()).unwrap();
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let fat_rlp = to_fat_rlp(&account, &AccountDB::new(db.as_hashdb(), &addr), &mut Default::default()).unwrap();
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let fat_rlp = UntrustedRlp::new(&fat_rlp);
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assert_eq!(Account::from_fat_rlp(&mut AccountDBMut::new(db.as_hashdb_mut(), &addr), fat_rlp).unwrap().0, account);
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assert_eq!(from_fat_rlp(&mut AccountDBMut::new(db.as_hashdb_mut(), &addr), fat_rlp).unwrap().0, account);
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}
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#[test]
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@ -258,7 +215,7 @@ mod tests {
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let acct_db = AccountDBMut::new(db.as_hashdb_mut(), &addr);
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let mut root = SHA3_NULL_RLP;
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fill_storage(acct_db, &mut root, &mut H256::zero());
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Account {
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BasicAccount {
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nonce: 25.into(),
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balance: 987654321.into(),
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storage_root: root,
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@ -266,12 +223,12 @@ mod tests {
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}
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};
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let thin_rlp = account.to_thin_rlp();
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assert_eq!(Account::from_thin_rlp(&thin_rlp), account);
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let thin_rlp = ::rlp::encode(&account);
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assert_eq!(::rlp::decode::<BasicAccount>(&thin_rlp), account);
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let fat_rlp = account.to_fat_rlp(&AccountDB::new(db.as_hashdb(), &addr), &mut Default::default()).unwrap();
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let fat_rlp = to_fat_rlp(&account, &AccountDB::new(db.as_hashdb(), &addr), &mut Default::default()).unwrap();
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let fat_rlp = UntrustedRlp::new(&fat_rlp);
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assert_eq!(Account::from_fat_rlp(&mut AccountDBMut::new(db.as_hashdb_mut(), &addr), fat_rlp).unwrap().0, account);
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assert_eq!(from_fat_rlp(&mut AccountDBMut::new(db.as_hashdb_mut(), &addr), fat_rlp).unwrap().0, account);
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}
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#[test]
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@ -291,14 +248,14 @@ mod tests {
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acct_db.emplace(code_hash.clone(), DBValue::from_slice(b"this is definitely code"));
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}
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let account1 = Account {
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let account1 = BasicAccount {
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nonce: 50.into(),
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balance: 123456789.into(),
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storage_root: SHA3_NULL_RLP,
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code_hash: code_hash,
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};
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let account2 = Account {
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let account2 = BasicAccount {
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nonce: 400.into(),
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balance: 98765432123456789usize.into(),
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storage_root: SHA3_NULL_RLP,
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@ -307,18 +264,18 @@ mod tests {
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let mut used_code = HashSet::new();
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let fat_rlp1 = account1.to_fat_rlp(&AccountDB::new(db.as_hashdb(), &addr1), &mut used_code).unwrap();
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let fat_rlp2 = account2.to_fat_rlp(&AccountDB::new(db.as_hashdb(), &addr2), &mut used_code).unwrap();
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let fat_rlp1 = to_fat_rlp(&account1, &AccountDB::new(db.as_hashdb(), &addr1), &mut used_code).unwrap();
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let fat_rlp2 = to_fat_rlp(&account2, &AccountDB::new(db.as_hashdb(), &addr2), &mut used_code).unwrap();
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assert_eq!(used_code.len(), 1);
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let fat_rlp1 = UntrustedRlp::new(&fat_rlp1);
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let fat_rlp2 = UntrustedRlp::new(&fat_rlp2);
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let (acc, maybe_code) = Account::from_fat_rlp(&mut AccountDBMut::new(db.as_hashdb_mut(), &addr2), fat_rlp2).unwrap();
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let (acc, maybe_code) = from_fat_rlp(&mut AccountDBMut::new(db.as_hashdb_mut(), &addr2), fat_rlp2).unwrap();
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assert!(maybe_code.is_none());
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assert_eq!(acc, account2);
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let (acc, maybe_code) = Account::from_fat_rlp(&mut AccountDBMut::new(db.as_hashdb_mut(), &addr1), fat_rlp1).unwrap();
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let (acc, maybe_code) = from_fat_rlp(&mut AccountDBMut::new(db.as_hashdb_mut(), &addr1), fat_rlp1).unwrap();
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assert_eq!(maybe_code, Some(b"this is definitely code".to_vec()));
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assert_eq!(acc, account1);
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}
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@ -328,7 +285,7 @@ mod tests {
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let mut db = get_temp_state_db();
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let mut used_code = HashSet::new();
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assert_eq!(ACC_EMPTY.to_fat_rlp(&AccountDB::new(db.as_hashdb(), &Address::default()), &mut used_code).unwrap(), ::rlp::NULL_RLP.to_vec());
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assert_eq!(Account::from_fat_rlp(&mut AccountDBMut::new(db.as_hashdb_mut(), &Address::default()), UntrustedRlp::new(&::rlp::NULL_RLP)).unwrap(), (ACC_EMPTY, None));
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assert_eq!(to_fat_rlp(&ACC_EMPTY, &AccountDB::new(db.as_hashdb(), &Address::default()), &mut used_code).unwrap(), ::rlp::NULL_RLP.to_vec());
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assert_eq!(from_fat_rlp(&mut AccountDBMut::new(db.as_hashdb_mut(), &Address::default()), UntrustedRlp::new(&::rlp::NULL_RLP)).unwrap(), (ACC_EMPTY, None));
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}
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}
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@ -40,7 +40,6 @@ use util::sha3::SHA3_NULL_RLP;
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use rlp::{RlpStream, Stream, UntrustedRlp, View};
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use bloom_journal::Bloom;
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use self::account::Account;
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use self::block::AbridgedBlock;
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use self::io::SnapshotWriter;
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@ -368,12 +367,12 @@ pub fn chunk_state<'a>(db: &HashDB, root: &H256, writer: &Mutex<SnapshotWriter +
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// account_key here is the address' hash.
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for item in account_trie.iter()? {
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let (account_key, account_data) = item?;
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let account = Account::from_thin_rlp(&*account_data);
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let account = ::rlp::decode(&*account_data);
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let account_key_hash = H256::from_slice(&account_key);
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let account_db = AccountDB::from_hash(db, account_key_hash);
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let fat_rlp = account.to_fat_rlp(&account_db, &mut used_code)?;
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let fat_rlp = account::to_fat_rlp(&account, &account_db, &mut used_code)?;
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chunker.push(account_key, fat_rlp)?;
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}
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@ -507,10 +506,10 @@ fn rebuild_accounts(
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// fill out the storage trie and code while decoding.
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let (acc, maybe_code) = {
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let mut acct_db = AccountDBMut::from_hash(db, hash);
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Account::from_fat_rlp(&mut acct_db, fat_rlp)?
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account::from_fat_rlp(&mut acct_db, fat_rlp)?
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};
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let code_hash = acc.code_hash().clone();
|
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let code_hash = acc.code_hash.clone();
|
||||
match maybe_code {
|
||||
// new inline code
|
||||
Some(code) => status.new_code.push((code_hash, code, hash)),
|
||||
@ -534,7 +533,7 @@ fn rebuild_accounts(
|
||||
}
|
||||
}
|
||||
|
||||
acc.to_thin_rlp()
|
||||
::rlp::encode(&acc).to_vec()
|
||||
};
|
||||
|
||||
*out = (hash, thin_rlp);
|
||||
|
||||
@ -17,9 +17,9 @@
|
||||
//! Snapshot test helpers. These are used to build blockchains and state tries
|
||||
//! which can be queried before and after a full snapshot/restore cycle.
|
||||
|
||||
use basic_account::BasicAccount;
|
||||
use account_db::AccountDBMut;
|
||||
use rand::Rng;
|
||||
use snapshot::account::Account;
|
||||
|
||||
use util::DBValue;
|
||||
use util::hash::{FixedHash, H256};
|
||||
@ -64,10 +64,10 @@ impl StateProducer {
|
||||
|
||||
// sweep once to alter storage tries.
|
||||
for &mut (ref mut address_hash, ref mut account_data) in &mut accounts_to_modify {
|
||||
let mut account = Account::from_thin_rlp(&*account_data);
|
||||
let mut account: BasicAccount = ::rlp::decode(&*account_data);
|
||||
let acct_db = AccountDBMut::from_hash(db, *address_hash);
|
||||
fill_storage(acct_db, account.storage_root_mut(), &mut self.storage_seed);
|
||||
*account_data = DBValue::from_vec(account.to_thin_rlp());
|
||||
fill_storage(acct_db, &mut account.storage_root, &mut self.storage_seed);
|
||||
*account_data = DBValue::from_vec(::rlp::encode(&account).to_vec());
|
||||
}
|
||||
|
||||
// sweep again to alter account trie.
|
||||
|
||||
@ -16,8 +16,9 @@
|
||||
|
||||
//! State snapshotting tests.
|
||||
|
||||
use basic_account::BasicAccount;
|
||||
use snapshot::account;
|
||||
use snapshot::{chunk_state, Error as SnapshotError, Progress, StateRebuilder};
|
||||
use snapshot::account::Account;
|
||||
use snapshot::io::{PackedReader, PackedWriter, SnapshotReader, SnapshotWriter};
|
||||
use super::helpers::{compare_dbs, StateProducer};
|
||||
|
||||
@ -113,22 +114,21 @@ fn get_code_from_prev_chunk() {
|
||||
// first one will have code inlined,
|
||||
// second will just have its hash.
|
||||
let thin_rlp = acc_stream.out();
|
||||
let acc1 = Account::from_thin_rlp(&thin_rlp);
|
||||
let acc2 = Account::from_thin_rlp(&thin_rlp);
|
||||
let acc: BasicAccount = ::rlp::decode(&thin_rlp);
|
||||
|
||||
let mut make_chunk = |acc: Account, hash| {
|
||||
let mut make_chunk = |acc, hash| {
|
||||
let mut db = MemoryDB::new();
|
||||
AccountDBMut::from_hash(&mut db, hash).insert(&code[..]);
|
||||
|
||||
let fat_rlp = acc.to_fat_rlp(&AccountDB::from_hash(&db, hash), &mut used_code).unwrap();
|
||||
let fat_rlp = account::to_fat_rlp(&acc, &AccountDB::from_hash(&db, hash), &mut used_code).unwrap();
|
||||
|
||||
let mut stream = RlpStream::new_list(1);
|
||||
stream.begin_list(2).append(&hash).append_raw(&fat_rlp, 1);
|
||||
stream.out()
|
||||
};
|
||||
|
||||
let chunk1 = make_chunk(acc1, h1);
|
||||
let chunk2 = make_chunk(acc2, h2);
|
||||
let chunk1 = make_chunk(acc.clone(), h1);
|
||||
let chunk2 = make_chunk(acc, h2);
|
||||
|
||||
let db_path = RandomTempPath::create_dir();
|
||||
let db_cfg = DatabaseConfig::with_columns(::db::NUM_COLUMNS);
|
||||
|
||||
Loading…
Reference in New Issue
Block a user