Merge branch 'master' of https://github.com/gavofyork/ethcore into evm

This commit is contained in:
debris 2016-01-09 23:02:01 +01:00
commit 55a023554a
9 changed files with 144 additions and 48 deletions

7
src/basic_types.rs Normal file
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@ -0,0 +1,7 @@
use util::*;
/// Type for a 2048-bit log-bloom, as used by our blocks.
pub type LogBloom = H2048;
/// Constant 2048-bit datum for 0. Often used as a default.
pub static ZERO_LOGBLOOM: LogBloom = H2048([0x00; 256]);

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@ -1,9 +1,5 @@
use util::*; use common::*;
use transaction::*;
use receipt::*;
use engine::*; use engine::*;
use header::*;
use env_info::*;
use state::*; use state::*;
/// A transaction/receipt execution entry. /// A transaction/receipt execution entry.
@ -71,7 +67,7 @@ pub struct OpenBlock<'engine> {
/// There is no function available to push a transaction. If you want that you'll need to `reopen()` it. /// There is no function available to push a transaction. If you want that you'll need to `reopen()` it.
pub struct ClosedBlock<'engine> { pub struct ClosedBlock<'engine> {
open_block: OpenBlock<'engine>, open_block: OpenBlock<'engine>,
_uncles: Vec<Header>, uncles: Bytes,
} }
/// A block that has a valid seal. /// A block that has a valid seal.
@ -105,7 +101,7 @@ impl<'engine> OpenBlock<'engine> {
timestamp: self.block.header.timestamp.clone(), timestamp: self.block.header.timestamp.clone(),
difficulty: self.block.header.difficulty.clone(), difficulty: self.block.header.difficulty.clone(),
last_hashes: self.last_hashes.clone(), last_hashes: self.last_hashes.clone(),
gas_used: if let Some(ref t) = self.block.archive.last() {t.receipt.gas_used} else {U256::from(0)}, gas_used: self.block.archive.last().map(|t| t.receipt.gas_used).unwrap_or(U256::from(0)),
gas_limit: self.block.header.gas_limit.clone(), gas_limit: self.block.header.gas_limit.clone(),
} }
} }
@ -123,8 +119,24 @@ impl<'engine> OpenBlock<'engine> {
} }
} }
/// Turn this into a `ClosedBlock`. A BlockChain must be provided in order to figure ou the uncles. /// Turn this into a `ClosedBlock`. A BlockChain must be provided in order to figure out the uncles.
pub fn close(self, _uncles: Vec<Header>) -> ClosedBlock<'engine> { unimplemented!(); } pub fn close(self, uncles: Vec<Header>, author: Address, extra_data: Bytes) -> ClosedBlock<'engine> {
let mut s = self;
// populate rest of header.
s.engine.on_close_block(&mut s.block);
s.block.header.author = author;
// s.header.transactions_root = ...;
let uncle_bytes = uncles.iter().fold(RlpStream::new_list(uncles.len()), |mut s, u| {s.append(&u.rlp(Seal::With)); s} ).out();
s.block.header.uncles_hash = uncle_bytes.sha3();
s.block.header.extra_data = extra_data;
s.block.header.state_root = s.block.state.root().clone();
// s.header.receipts_root = ...;
s.block.header.log_bloom = s.block.archive.iter().fold(LogBloom::zero(), |mut b, e| {b |= &e.receipt.log_bloom; b});
s.block.header.gas_used = s.block.archive.last().map(|t| t.receipt.gas_used).unwrap_or(U256::from(0));
s.block.header.note_dirty();
ClosedBlock::new(s, uncle_bytes)
}
} }
impl<'engine> IsBlock for OpenBlock<'engine> { impl<'engine> IsBlock for OpenBlock<'engine> {
@ -132,6 +144,13 @@ impl<'engine> IsBlock for OpenBlock<'engine> {
} }
impl<'engine> ClosedBlock<'engine> { impl<'engine> ClosedBlock<'engine> {
fn new<'a>(open_block: OpenBlock<'a>, uncles: Bytes) -> ClosedBlock<'a> {
ClosedBlock {
open_block: open_block,
uncles: uncles,
}
}
/// Get the hash of the header without seal arguments. /// Get the hash of the header without seal arguments.
pub fn preseal_hash(&self) -> H256 { unimplemented!(); } pub fn preseal_hash(&self) -> H256 { unimplemented!(); }
@ -155,11 +174,13 @@ impl IsBlock for SealedBlock {
#[test] #[test]
fn open_block() { fn open_block() {
use super::*;
use spec::*; use spec::*;
let engine = Spec::new_test().to_engine().unwrap(); use ethereum::*;
let engine = new_morden().to_engine().unwrap();
let genesis_header = engine.spec().genesis_header(); let genesis_header = engine.spec().genesis_header();
let mut db = OverlayDB::new_temp(); let mut db = OverlayDB::new_temp();
engine.spec().ensure_db_good(&mut db); engine.spec().ensure_db_good(&mut db);
let b = OpenBlock::new(engine.deref(), db, &genesis_header, vec![genesis_header.hash()]); let b = OpenBlock::new(engine.deref(), db, &genesis_header, vec![genesis_header.hash()]);
let b = b.close(vec![], Address::zero(), vec![]);
assert_eq!(b.state().balance(&Address::zero()), U256::from_str("4563918244F40000").unwrap());
} }

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@ -1,4 +1,5 @@
pub use util::*; pub use util::*;
pub use basic_types::*;
pub use env_info::*; pub use env_info::*;
pub use evm_schedule::*; pub use evm_schedule::*;
pub use views::*; pub use views::*;
@ -6,3 +7,4 @@ pub use builtin::*;
pub use header::*; pub use header::*;
pub use account::*; pub use account::*;
pub use transaction::*; pub use transaction::*;
pub use receipt::*;

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@ -23,24 +23,18 @@ impl Engine for Ethash {
/// Apply the block reward on finalisation of the block. /// Apply the block reward on finalisation of the block.
fn on_close_block(&self, block: &mut Block) { fn on_close_block(&self, block: &mut Block) {
let a = block.header().author.clone(); let a = block.header().author.clone();
block.state_mut().add_balance(&a, &decode(&self.spec().engine_params.get("block_reward").unwrap())); block.state_mut().add_balance(&a, &decode(&self.spec().engine_params.get("blockReward").unwrap()));
} }
} }
// TODO: test for on_close_block.
#[test] #[test]
fn playpen() { fn on_close_block() {
use super::*; use super::*;
use state::*;
let engine = new_morden().to_engine().unwrap(); let engine = new_morden().to_engine().unwrap();
let genesis_header = engine.spec().genesis_header(); let genesis_header = engine.spec().genesis_header();
let mut db = OverlayDB::new_temp(); let mut db = OverlayDB::new_temp();
engine.spec().ensure_db_good(&mut db); engine.spec().ensure_db_good(&mut db);
assert!(SecTrieDB::new(&db, &genesis_header.state_root).contains(&address_from_hex("102e61f5d8f9bc71d0ad4a084df4e65e05ce0e1c")));
{
let s = State::from_existing(db.clone(), genesis_header.state_root.clone(), engine.account_start_nonce());
assert_eq!(s.balance(&address_from_hex("0000000000000000000000000000000000000001")), U256::from(1u64));
}
let b = OpenBlock::new(engine.deref(), db, &genesis_header, vec![genesis_header.hash()]); let b = OpenBlock::new(engine.deref(), db, &genesis_header, vec![genesis_header.hash()]);
// let c = b.close(); let b = b.close(vec![], Address::zero(), vec![]);
assert_eq!(b.state().balance(&Address::zero()), U256::from_str("4563918244F40000").unwrap());
} }

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@ -56,7 +56,7 @@ mod tests {
let genesis = morden.genesis_block(); let genesis = morden.genesis_block();
assert_eq!(BlockView::new(&genesis).header_view().sha3(), H256::from_str("0cd786a2425d16f152c658316c423e6ce1181e15c3295826d7c9904cba9ce303").unwrap()); assert_eq!(BlockView::new(&genesis).header_view().sha3(), H256::from_str("0cd786a2425d16f152c658316c423e6ce1181e15c3295826d7c9904cba9ce303").unwrap());
morden.to_engine(); let _ = morden.to_engine();
} }
#[test] #[test]
@ -67,6 +67,6 @@ mod tests {
let genesis = frontier.genesis_block(); let genesis = frontier.genesis_block();
assert_eq!(BlockView::new(&genesis).header_view().sha3(), H256::from_str("d4e56740f876aef8c010b86a40d5f56745a118d0906a34e69aec8c0db1cb8fa3").unwrap()); assert_eq!(BlockView::new(&genesis).header_view().sha3(), H256::from_str("d4e56740f876aef8c010b86a40d5f56745a118d0906a34e69aec8c0db1cb8fa3").unwrap());
frontier.to_engine(); let _ = frontier.to_engine();
} }
} }

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@ -1,14 +1,5 @@
use util::*; use util::*;
use basic_types::*;
/// Type for a 2048-bit log-bloom, as used by our blocks.
pub type LogBloom = H2048;
/// Constant address for point 0. Often used as a default.
pub static ZERO_ADDRESS: Address = Address([0x00; 20]);
/// Constant 256-bit datum for 0. Often used as a default.
pub static ZERO_H256: H256 = H256([0x00; 32]);
/// Constant 2048-bit datum for 0. Often used as a default.
pub static ZERO_LOGBLOOM: LogBloom = H2048([0x00; 256]);
/// A block header. /// A block header.
/// ///
@ -39,6 +30,11 @@ pub struct Header {
pub hash: RefCell<Option<H256>>, //TODO: make this private pub hash: RefCell<Option<H256>>, //TODO: make this private
} }
pub enum Seal {
With,
Without,
}
impl Header { impl Header {
/// Create a new, default-valued, header. /// Create a new, default-valued, header.
pub fn new() -> Header { pub fn new() -> Header {
@ -64,19 +60,54 @@ impl Header {
} }
} }
/// Get the hash of this header (sha3 of the RLP).
pub fn hash(&self) -> H256 { pub fn hash(&self) -> H256 {
let mut hash = self.hash.borrow_mut(); let mut hash = self.hash.borrow_mut();
match &mut *hash { match &mut *hash {
&mut Some(ref h) => h.clone(), &mut Some(ref h) => h.clone(),
hash @ &mut None => { hash @ &mut None => {
let mut stream = RlpStream::new(); *hash = Some(self.rlp_sha3(Seal::With));
stream.append(self); hash.as_ref().unwrap().clone()
let h = stream.as_raw().sha3();
*hash = Some(h.clone());
h.clone()
} }
} }
} }
/// Note that some fields have changed. Resets the memoised hash.
pub fn note_dirty(&self) {
*self.hash.borrow_mut() = None;
}
// TODO: get hash without seal.
// TODO: make these functions traity
pub fn stream_rlp(&self, s: &mut RlpStream, with_seal: Seal) {
s.append_list(13 + match with_seal { Seal::With => self.seal.len(), _ => 0 });
s.append(&self.parent_hash);
s.append(&self.uncles_hash);
s.append(&self.author);
s.append(&self.state_root);
s.append(&self.transactions_root);
s.append(&self.receipts_root);
s.append(&self.log_bloom);
s.append(&self.difficulty);
s.append(&self.number);
s.append(&self.gas_limit);
s.append(&self.gas_used);
s.append(&self.timestamp);
s.append(&self.extra_data);
match with_seal {
Seal::With => for b in self.seal.iter() { s.append_raw(&b, 1); },
_ => {}
}
}
pub fn rlp(&self, with_seal: Seal) -> Bytes {
let mut s = RlpStream::new();
self.stream_rlp(&mut s, with_seal);
s.out()
}
pub fn rlp_sha3(&self, with_seal: Seal) -> H256 { self.rlp(with_seal).sha3() }
} }
impl Decodable for Header { impl Decodable for Header {

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@ -1,5 +1,5 @@
#![feature(cell_extras)] #![feature(cell_extras)]
#![feature(augmented_assignments)]
//! Ethcore's ethereum implementation //! Ethcore's ethereum implementation
//! //!
//! ### Rust version //! ### Rust version
@ -86,6 +86,7 @@ extern crate evmjit;
extern crate ethcore_util as util; extern crate ethcore_util as util;
pub mod common; pub mod common;
pub mod basic_types;
pub mod env_info; pub mod env_info;
pub mod engine; pub mod engine;
pub mod state; pub mod state;

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@ -1,8 +1,10 @@
use util::*; use util::*;
use basic_types::LogBloom;
/// Information describing execution of a transaction. /// Information describing execution of a transaction.
pub struct Receipt { pub struct Receipt {
// TODO // TODO
pub state_root: H256, pub state_root: H256,
pub gas_used: U256, pub gas_used: U256,
pub log_bloom: LogBloom,
} }

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@ -79,6 +79,11 @@ impl State {
self.require_or_from(contract, false, || Account::new_contract(U256::from(0u8)), |r| r.reset_code()); self.require_or_from(contract, false, || Account::new_contract(U256::from(0u8)), |r| r.reset_code());
} }
/// Remove an existing account.
pub fn kill_account(&mut self, account: &Address) {
self.cache.borrow_mut().insert(account.clone(), None);
}
/// Get the balance of account `a`. /// Get the balance of account `a`.
pub fn balance(&self, a: &Address) -> U256 { pub fn balance(&self, a: &Address) -> U256 {
self.get(a, false).as_ref().map(|account| account.balance().clone()).unwrap_or(U256::from(0u8)) self.get(a, false).as_ref().map(|account| account.balance().clone()).unwrap_or(U256::from(0u8))
@ -228,12 +233,11 @@ use util::hash::*;
use util::trie::*; use util::trie::*;
use util::rlp::*; use util::rlp::*;
use util::uint::*; use util::uint::*;
use std::str::FromStr;
use account::*; use account::*;
#[test] #[test]
fn code_from_database() { fn code_from_database() {
let a = Address::from_str("0000000000000000000000000000000000000000").unwrap(); let a = Address::zero();
let (r, db) = { let (r, db) = {
let mut s = State::new_temp(); let mut s = State::new_temp();
s.require_or_from(&a, false, ||Account::new_contract(U256::from(42u32)), |_|{}); s.require_or_from(&a, false, ||Account::new_contract(U256::from(42u32)), |_|{});
@ -250,7 +254,7 @@ fn code_from_database() {
#[test] #[test]
fn storage_at_from_database() { fn storage_at_from_database() {
let a = Address::from_str("0000000000000000000000000000000000000000").unwrap(); let a = Address::zero();
let (r, db) = { let (r, db) = {
let mut s = State::new_temp(); let mut s = State::new_temp();
s.set_storage(&a, H256::from(&U256::from(01u64)), H256::from(&U256::from(69u64))); s.set_storage(&a, H256::from(&U256::from(01u64)), H256::from(&U256::from(69u64)));
@ -264,7 +268,7 @@ fn storage_at_from_database() {
#[test] #[test]
fn get_from_database() { fn get_from_database() {
let a = Address::from_str("0000000000000000000000000000000000000000").unwrap(); let a = Address::zero();
let (r, db) = { let (r, db) = {
let mut s = State::new_temp(); let mut s = State::new_temp();
s.inc_nonce(&a); s.inc_nonce(&a);
@ -279,11 +283,45 @@ fn get_from_database() {
assert_eq!(s.nonce(&a), U256::from(1u64)); assert_eq!(s.nonce(&a), U256::from(1u64));
} }
#[test]
fn remove() {
let a = Address::zero();
let mut s = State::new_temp();
s.inc_nonce(&a);
assert_eq!(s.nonce(&a), U256::from(1u64));
s.kill_account(&a);
assert_eq!(s.nonce(&a), U256::from(0u64));
}
#[test]
fn remove_from_database() {
let a = Address::zero();
let (r, db) = {
let mut s = State::new_temp();
s.inc_nonce(&a);
s.commit();
assert_eq!(s.nonce(&a), U256::from(1u64));
s.drop()
};
let (r, db) = {
let mut s = State::from_existing(db, r, U256::from(0u8));
assert_eq!(s.nonce(&a), U256::from(1u64));
s.kill_account(&a);
s.commit();
assert_eq!(s.nonce(&a), U256::from(0u64));
s.drop()
};
let s = State::from_existing(db, r, U256::from(0u8));
assert_eq!(s.nonce(&a), U256::from(0u64));
}
#[test] #[test]
fn alter_balance() { fn alter_balance() {
let mut s = State::new_temp(); let mut s = State::new_temp();
let a = Address::from_str("0000000000000000000000000000000000000000").unwrap(); let a = Address::zero();
let b = Address::from_str("0000000000000000000000000000000000000001").unwrap(); let b = address_from_u64(1u64);
s.add_balance(&a, &U256::from(69u64)); s.add_balance(&a, &U256::from(69u64));
assert_eq!(s.balance(&a), U256::from(69u64)); assert_eq!(s.balance(&a), U256::from(69u64));
s.commit(); s.commit();
@ -303,7 +341,7 @@ fn alter_balance() {
#[test] #[test]
fn alter_nonce() { fn alter_nonce() {
let mut s = State::new_temp(); let mut s = State::new_temp();
let a = Address::from_str("0000000000000000000000000000000000000000").unwrap(); let a = Address::zero();
s.inc_nonce(&a); s.inc_nonce(&a);
assert_eq!(s.nonce(&a), U256::from(1u64)); assert_eq!(s.nonce(&a), U256::from(1u64));
s.inc_nonce(&a); s.inc_nonce(&a);
@ -319,7 +357,7 @@ fn alter_nonce() {
#[test] #[test]
fn balance_nonce() { fn balance_nonce() {
let mut s = State::new_temp(); let mut s = State::new_temp();
let a = Address::from_str("0000000000000000000000000000000000000000").unwrap(); let a = Address::zero();
assert_eq!(s.balance(&a), U256::from(0u64)); assert_eq!(s.balance(&a), U256::from(0u64));
assert_eq!(s.nonce(&a), U256::from(0u64)); assert_eq!(s.nonce(&a), U256::from(0u64));
s.commit(); s.commit();
@ -330,7 +368,7 @@ fn balance_nonce() {
#[test] #[test]
fn ensure_cached() { fn ensure_cached() {
let mut s = State::new_temp(); let mut s = State::new_temp();
let a = Address::from_str("0000000000000000000000000000000000000000").unwrap(); let a = Address::zero();
s.require(&a, false); s.require(&a, false);
s.commit(); s.commit();
assert_eq!(s.root().hex(), "0ce23f3c809de377b008a4a3ee94a0834aac8bec1f86e28ffe4fdb5a15b0c785"); assert_eq!(s.root().hex(), "0ce23f3c809de377b008a4a3ee94a0834aac8bec1f86e28ffe4fdb5a15b0c785");