diff --git a/Cargo.toml b/Cargo.toml index 64b49663f..f5e0fd420 100644 --- a/Cargo.toml +++ b/Cargo.toml @@ -15,6 +15,7 @@ flate2 = "0.2" rocksdb = "0.2.1" heapsize = "0.2.0" rust-crypto = "0.2.34" +time = "0.1" evmjit = { path = "rust-evmjit", optional = true } diff --git a/src/block.rs b/src/block.rs index ac43be23b..941cef985 100644 --- a/src/block.rs +++ b/src/block.rs @@ -21,7 +21,16 @@ pub struct Block { uncles: Vec
, } +/// A set of references to `Block` fields that are publicly accessible. +pub struct BlockRefMut<'a> { + pub header: &'a Header, + pub state: &'a mut State, + pub archive: &'a Vec, + pub uncles: &'a Vec
, +} + impl Block { + /// Create a new block from the given `state`. fn new(state: State) -> Block { Block { header: Header::new(), @@ -32,7 +41,15 @@ impl Block { } } - pub fn state_mut(&mut self) -> &mut State { &mut self.state } + /// Get a structure containing individual references to all public fields. + pub fn fields(&mut self) -> BlockRefMut { + BlockRefMut { + header: &self.header, + state: &mut self.state, + archive: &self.archive, + uncles: &self.uncles, + } + } } /// Trait for a object that is_a `Block`. @@ -61,18 +78,18 @@ impl IsBlock for Block { /// /// It's a bit like a Vec, eccept that whenever a transaction is pushed, we execute it and /// maintain the system `state()`. We also archive execution receipts in preparation for later block creation. -pub struct OpenBlock<'engine> { +pub struct OpenBlock<'x, 'y> { block: Block, - engine: &'engine Engine, - last_hashes: LastHashes, + engine: &'x Engine, + last_hashes: &'y LastHashes, } /// Just like OpenBlock, except that we've applied `Engine::on_close_block`, finished up the non-seal header fields, /// and collected the uncles. /// /// There is no function available to push a transaction. If you want that you'll need to `reopen()` it. -pub struct ClosedBlock<'engine> { - open_block: OpenBlock<'engine>, +pub struct ClosedBlock<'x, 'y> { + open_block: OpenBlock<'x, 'y>, uncle_bytes: Bytes, } @@ -84,9 +101,9 @@ pub struct SealedBlock { uncle_bytes: Bytes, } -impl<'engine> OpenBlock<'engine> { +impl<'x, 'y> OpenBlock<'x, 'y> { /// Create a new OpenBlock ready for transaction pushing. - pub fn new<'a>(engine: &'a Engine, db: OverlayDB, parent: &Header, last_hashes: LastHashes, author: Address, extra_data: Bytes) -> OpenBlock<'a> { + pub fn new<'a, 'b>(engine: &'a Engine, db: OverlayDB, parent: &Header, last_hashes: &'b LastHashes, author: Address, extra_data: Bytes) -> OpenBlock<'a, 'b> { let mut r = OpenBlock { block: Block::new(State::from_existing(db, parent.state_root.clone(), engine.account_start_nonce())), engine: engine, @@ -95,6 +112,8 @@ impl<'engine> OpenBlock<'engine> { r.block.header.set_author(author); r.block.header.set_extra_data(extra_data); + r.block.header.set_timestamp_now(); + engine.populate_from_parent(&mut r.block.header, parent); engine.on_new_block(&mut r.block); r @@ -103,6 +122,9 @@ impl<'engine> OpenBlock<'engine> { /// Alter the author for the block. pub fn set_author(&mut self, author: Address) { self.block.header.set_author(author); } + /// Alter the timestamp of the block. + pub fn set_timestamp(&mut self, timestamp: u64) { self.block.header.set_timestamp(timestamp); } + /// Alter the extra_data for the block. pub fn set_extra_data(&mut self, extra_data: Bytes) -> Result<(), BlockError> { if extra_data.len() > self.engine.maximum_extra_data_size() { @@ -131,9 +153,9 @@ impl<'engine> OpenBlock<'engine> { pub fn env_info(&self) -> EnvInfo { // TODO: memoise. EnvInfo { - number: self.block.header.number.clone(), + number: self.block.header.number, author: self.block.header.author.clone(), - timestamp: self.block.header.timestamp.clone(), + timestamp: self.block.header.timestamp, difficulty: self.block.header.difficulty.clone(), last_hashes: self.last_hashes.clone(), gas_used: self.block.archive.last().map(|t| t.receipt.gas_used).unwrap_or(U256::from(0)), @@ -157,7 +179,7 @@ impl<'engine> OpenBlock<'engine> { } /// Turn this into a `ClosedBlock`. A BlockChain must be provided in order to figure out the uncles. - pub fn close(self) -> ClosedBlock<'engine> { + pub fn close(self) -> ClosedBlock<'x, 'y> { let mut s = self; s.engine.on_close_block(&mut s.block); s.block.header.transactions_root = ordered_trie_root(s.block.archive.iter().map(|ref e| e.transaction.rlp_bytes()).collect()); @@ -173,16 +195,16 @@ impl<'engine> OpenBlock<'engine> { } } -impl<'engine> IsBlock for OpenBlock<'engine> { +impl<'x, 'y> IsBlock for OpenBlock<'x, 'y> { fn block(&self) -> &Block { &self.block } } -impl<'engine> IsBlock for ClosedBlock<'engine> { +impl<'x, 'y> IsBlock for ClosedBlock<'x, 'y> { fn block(&self) -> &Block { &self.open_block.block } } -impl<'engine> ClosedBlock<'engine> { - fn new<'a>(open_block: OpenBlock<'a>, uncle_bytes: Bytes) -> ClosedBlock<'a> { +impl<'x, 'y> ClosedBlock<'x, 'y> { + fn new<'a, 'b>(open_block: OpenBlock<'a, 'b>, uncle_bytes: Bytes) -> ClosedBlock<'a, 'b> { ClosedBlock { open_block: open_block, uncle_bytes: uncle_bytes, @@ -205,7 +227,7 @@ impl<'engine> ClosedBlock<'engine> { } /// Turn this back into an `OpenBlock`. - pub fn reopen(self) -> OpenBlock<'engine> { self.open_block } + pub fn reopen(self) -> OpenBlock<'x, 'y> { self.open_block } } impl SealedBlock { @@ -217,13 +239,26 @@ impl SealedBlock { for e in self.block.archive.iter() { e.transaction.rlp_append(&mut block_rlp); } block_rlp.append_raw(&self.uncle_bytes, 1); block_rlp.out() - } + } + + /// Drop this object and return the underlieing database. + pub fn drain(self) -> OverlayDB { self.block.state.drop().1 } } impl IsBlock for SealedBlock { fn block(&self) -> &Block { &self.block } } +pub fn enact(rlp_bytes: &[u8], engine: &Engine, db: OverlayDB, parent: &Header, last_hashes: &LastHashes) -> Result { + let block = BlockView::new(rlp_bytes); + let header = block.header_view(); + let mut b = OpenBlock::new(engine, db, parent, last_hashes, header.author(), header.extra_data()); + b.set_timestamp(header.timestamp()); + for t in block.transactions().into_iter() { try!(b.push_transaction(t, None)); } + for u in block.uncles().into_iter() { try!(b.push_uncle(u)); } + Ok(try!(b.close().seal(header.seal()))) +} + #[test] fn open_block() { use spec::*; @@ -231,7 +266,30 @@ fn open_block() { let genesis_header = engine.spec().genesis_header(); let mut db = OverlayDB::new_temp(); engine.spec().ensure_db_good(&mut db); - let b = OpenBlock::new(engine.deref(), db, &genesis_header, vec![genesis_header.hash()], Address::zero(), vec![]); + let last_hashes = vec![genesis_header.hash()]; + let b = OpenBlock::new(engine.deref(), db, &genesis_header, &last_hashes, Address::zero(), vec![]); let b = b.close(); let _ = b.seal(vec![]); -} \ No newline at end of file +} + +#[test] +fn enact_block() { + use spec::*; + let engine = Spec::new_test().to_engine().unwrap(); + let genesis_header = engine.spec().genesis_header(); + + let mut db = OverlayDB::new_temp(); + engine.spec().ensure_db_good(&mut db); + let b = OpenBlock::new(engine.deref(), db, &genesis_header, &vec![genesis_header.hash()], Address::zero(), vec![]).close().seal(vec![]).unwrap(); + let orig_bytes = b.rlp_bytes(); + let orig_db = b.drain(); + + let mut db = OverlayDB::new_temp(); + engine.spec().ensure_db_good(&mut db); + let e = enact(&orig_bytes, engine.deref(), db, &genesis_header, &vec![genesis_header.hash()]).unwrap(); + + assert_eq!(e.rlp_bytes(), orig_bytes); + + let db = e.drain(); + assert_eq!(orig_db.keys(), db.keys()); +} diff --git a/src/blockchain.rs b/src/blockchain.rs index 048159b08..be2b8ce68 100644 --- a/src/blockchain.rs +++ b/src/blockchain.rs @@ -33,7 +33,7 @@ pub struct CacheSize { /// Information about best block gathered together struct BestBlock { pub hash: H256, - pub number: U256, + pub number: usize, pub total_difficulty: U256 } @@ -41,7 +41,7 @@ impl BestBlock { fn new() -> BestBlock { BestBlock { hash: H256::new(), - number: U256::from(0), + number: 0usize, total_difficulty: U256::from(0) } } @@ -58,7 +58,7 @@ pub struct BlockChain { // extra caches block_details: RefCell>, - block_hashes: RefCell>, + block_hashes: RefCell>, transaction_addresses: RefCell>, block_logs: RefCell>, blocks_blooms: RefCell>, @@ -92,7 +92,7 @@ impl BlockChain { /// let genesis_hash = "d4e56740f876aef8c010b86a40d5f56745a118d0906a34e69aec8c0db1cb8fa3"; /// assert_eq!(bc.genesis_hash(), H256::from_str(genesis_hash).unwrap()); /// assert!(bc.is_known(&bc.genesis_hash())); - /// assert_eq!(bc.genesis_hash(), bc.block_hash(&U256::from(0u8)).unwrap()); + /// assert_eq!(bc.genesis_hash(), bc.block_hash(0).unwrap()); /// } /// ``` pub fn new(genesis: &[u8], path: &Path) -> BlockChain { @@ -336,9 +336,9 @@ impl BlockChain { // it is a fork i if i > 1 => { let ancestor_number = self.block_number(&route.ancestor).unwrap(); - let start_number = ancestor_number + U256::from(1u8); + let start_number = ancestor_number + 1; for (index, hash) in route.blocks.iter().skip(route.index).enumerate() { - batch.put_extras(&(start_number + U256::from(index as u64)), hash); + batch.put_extras(&(start_number + index), hash); } }, // route.blocks.len() could be 0 only if inserted block is best block, @@ -371,7 +371,7 @@ impl BlockChain { /// Returns reference to genesis hash. pub fn genesis_hash(&self) -> H256 { - self.block_hash(&U256::from(0u8)).expect("Genesis hash should always exist") + self.block_hash(0).expect("Genesis hash should always exist") } /// Get the partial-header of a block. @@ -409,8 +409,8 @@ impl BlockChain { } /// Get the hash of given block's number. - pub fn block_hash(&self, hash: &U256) -> Option { - self.query_extras(hash, &self.block_hashes) + pub fn block_hash(&self, index: usize) -> Option { + self.query_extras(&index, &self.block_hashes) } /// Get best block hash. @@ -419,7 +419,7 @@ impl BlockChain { } /// Get best block number. - pub fn best_block_number(&self) -> U256 { + pub fn best_block_number(&self) -> usize { self.best_block.borrow().number } @@ -429,7 +429,7 @@ impl BlockChain { } /// Get the number of given block's hash. - pub fn block_number(&self, hash: &H256) -> Option { + pub fn block_number(&self, hash: &H256) -> Option { self.block(hash).map(|bytes| BlockView::new(&bytes).header_view().number()) } @@ -520,7 +520,6 @@ mod tests { use std::str::FromStr; use rustc_serialize::hex::FromHex; use util::hash::*; - use util::uint::*; use blockchain::*; #[test] @@ -535,10 +534,10 @@ mod tests { let genesis_hash = H256::from_str("3caa2203f3d7c136c0295ed128a7d31cea520b1ca5e27afe17d0853331798942").unwrap(); assert_eq!(bc.genesis_hash(), genesis_hash.clone()); - assert_eq!(bc.best_block_number(), U256::from(0u8)); + assert_eq!(bc.best_block_number(), 0); assert_eq!(bc.best_block_hash(), genesis_hash.clone()); - assert_eq!(bc.block_hash(&U256::from(0u8)), Some(genesis_hash.clone())); - assert_eq!(bc.block_hash(&U256::from(1u8)), None); + assert_eq!(bc.block_hash(0), Some(genesis_hash.clone())); + assert_eq!(bc.block_hash(1), None); let first = "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".from_hex().unwrap(); @@ -547,13 +546,13 @@ mod tests { let first_hash = H256::from_str("a940e5af7d146b3b917c953a82e1966b906dace3a4e355b5b0a4560190357ea1").unwrap(); - assert_eq!(bc.block_hash(&U256::from(0u8)), Some(genesis_hash.clone())); - assert_eq!(bc.best_block_number(), U256::from(1u8)); + assert_eq!(bc.block_hash(0), Some(genesis_hash.clone())); + assert_eq!(bc.best_block_number(), 1); assert_eq!(bc.best_block_hash(), first_hash.clone()); - assert_eq!(bc.block_hash(&U256::from(1u8)), Some(first_hash.clone())); + assert_eq!(bc.block_hash(1), Some(first_hash.clone())); assert_eq!(bc.block_details(&first_hash).unwrap().parent, genesis_hash.clone()); assert_eq!(bc.block_details(&genesis_hash).unwrap().children, vec![first_hash.clone()]); - assert_eq!(bc.block_hash(&U256::from(2u8)), None); + assert_eq!(bc.block_hash(2), None); } #[test] @@ -583,16 +582,16 @@ mod tests { bc.insert_block(&b3b); assert_eq!(bc.best_block_hash(), best_block_hash); - assert_eq!(bc.block_number(&genesis_hash).unwrap(), U256::from(0)); - assert_eq!(bc.block_number(&b1_hash).unwrap(), U256::from(1)); - assert_eq!(bc.block_number(&b2_hash).unwrap(), U256::from(2)); - assert_eq!(bc.block_number(&b3a_hash).unwrap(), U256::from(3)); - assert_eq!(bc.block_number(&b3b_hash).unwrap(), U256::from(3)); + assert_eq!(bc.block_number(&genesis_hash).unwrap(), 0); + assert_eq!(bc.block_number(&b1_hash).unwrap(), 1); + assert_eq!(bc.block_number(&b2_hash).unwrap(), 2); + assert_eq!(bc.block_number(&b3a_hash).unwrap(), 3); + assert_eq!(bc.block_number(&b3b_hash).unwrap(), 3); - assert_eq!(bc.block_hash(&U256::from(0)).unwrap(), genesis_hash); - assert_eq!(bc.block_hash(&U256::from(1)).unwrap(), b1_hash); - assert_eq!(bc.block_hash(&U256::from(2)).unwrap(), b2_hash); - assert_eq!(bc.block_hash(&U256::from(3)).unwrap(), b3a_hash); + assert_eq!(bc.block_hash(0).unwrap(), genesis_hash); + assert_eq!(bc.block_hash(1).unwrap(), b1_hash); + assert_eq!(bc.block_hash(2).unwrap(), b2_hash); + assert_eq!(bc.block_hash(3).unwrap(), b3a_hash); // test trie route let r0_1 = bc.tree_route(genesis_hash.clone(), b1_hash.clone()); diff --git a/src/env_info.rs b/src/env_info.rs index 919db314d..2ec096083 100644 --- a/src/env_info.rs +++ b/src/env_info.rs @@ -7,11 +7,11 @@ pub type LastHashes = Vec; /// Information concerning the execution environment for a message-call/contract-creation. pub struct EnvInfo { /// The block number. - pub number: U256, + pub number: usize, /// The block author. pub author: Address, /// The block timestamp. - pub timestamp: U256, + pub timestamp: u64, /// The block difficulty. pub difficulty: U256, /// The block gas limit. diff --git a/src/ethereum/ethash.rs b/src/ethereum/ethash.rs index f959c3d1d..828441fd6 100644 --- a/src/ethereum/ethash.rs +++ b/src/ethereum/ethash.rs @@ -17,13 +17,31 @@ impl Ethash { impl Engine for Ethash { fn name(&self) -> &str { "Ethash" } + fn version(&self) -> SemanticVersion { SemanticVersion::new(1, 0, 0) } + // Two fields - mix + fn seal_fields(&self) -> usize { 2 } + // Two empty data items in RLP. + fn seal_rlp(&self) -> Bytes { encode(&H64::new()) } + + /// Additional engine-specific information for the user/developer concerning `header`. + fn extra_info(&self, _header: &Header) -> HashMap { HashMap::new() } fn spec(&self) -> &Spec { &self.spec } fn evm_schedule(&self, _env_info: &EnvInfo) -> EvmSchedule { EvmSchedule::new_frontier() } /// Apply the block reward on finalisation of the block. + /// This assumes that all uncles are valid uncles (i.e. of at least one generation before the current). fn on_close_block(&self, block: &mut Block) { - let a = block.header().author.clone(); - block.state_mut().add_balance(&a, &decode(&self.spec().engine_params.get("blockReward").unwrap())); + let reward = self.spec().engine_params.get("blockReward").map(|a| decode(&a)).unwrap_or(U256::from(0u64)); + let fields = block.fields(); + + // Bestow block reward + fields.state.add_balance(&fields.header.author, &(reward + reward / U256::from(32) * U256::from(fields.uncles.len()))); + + // Bestow uncle rewards + let current_number = fields.header.number(); + for u in fields.uncles.iter() { + fields.state.add_balance(u.author(), &(reward * U256::from((8 + u.number() - current_number) / 8))); + } } } @@ -34,7 +52,8 @@ fn on_close_block() { let genesis_header = engine.spec().genesis_header(); let mut db = OverlayDB::new_temp(); engine.spec().ensure_db_good(&mut db); - let b = OpenBlock::new(engine.deref(), db, &genesis_header, vec![genesis_header.hash()], Address::zero(), vec![]); + let last_hashes = vec![genesis_header.hash()]; + let b = OpenBlock::new(engine.deref(), db, &genesis_header, &last_hashes, Address::zero(), vec![]); let b = b.close(); - assert_eq!(b.state().balance(&Address::zero()), U256::from_str("4563918244F40000").unwrap()); -} \ No newline at end of file + assert_eq!(b.state().balance(&Address::zero()), U256::from_str("4563918244f40000").unwrap()); +} diff --git a/src/extras.rs b/src/extras.rs index 39ce814c8..e94aa809f 100644 --- a/src/extras.rs +++ b/src/extras.rs @@ -74,6 +74,13 @@ impl ExtrasSliceConvertable for U256 { } } +// NICE: make less horrible. +impl ExtrasSliceConvertable for usize { + fn to_extras_slice(&self, i: ExtrasIndex) -> H264 { + U256::from(*self).to_extras_slice(i) + } +} + /// Types implementing this trait can be indexed in extras database pub trait ExtrasIndexable { fn extras_index() -> ExtrasIndex; @@ -88,7 +95,7 @@ impl ExtrasIndexable for H256 { /// Familial details concerning a block #[derive(Debug, Clone)] pub struct BlockDetails { - pub number: U256, + pub number: usize, pub total_difficulty: U256, pub parent: H256, pub children: Vec diff --git a/src/header.rs b/src/header.rs index a1666ef04..74ef169c0 100644 --- a/src/header.rs +++ b/src/header.rs @@ -1,5 +1,6 @@ use util::*; use basic_types::*; +use time::now_utc; /// A block header. /// @@ -11,8 +12,8 @@ use basic_types::*; pub struct Header { // TODO: make all private. pub parent_hash: H256, - pub timestamp: U256, - pub number: U256, + pub timestamp: u64, + pub number: usize, pub author: Address, pub transactions_root: H256, @@ -41,8 +42,8 @@ impl Header { pub fn new() -> Header { Header { parent_hash: ZERO_H256.clone(), - timestamp: BAD_U256.clone(), - number: ZERO_U256.clone(), + timestamp: 0, + number: 0, author: ZERO_ADDRESS.clone(), transactions_root: ZERO_H256.clone(), @@ -61,14 +62,23 @@ impl Header { } } + pub fn number(&self) -> usize { self.number } + pub fn timestamp(&self) -> u64 { self.timestamp } pub fn author(&self) -> &Address { &self.author } + pub fn extra_data(&self) -> &Bytes { &self.extra_data } + pub fn seal(&self) -> &Vec { &self.seal } // TODO: seal_at, set_seal_at &c. + pub fn set_number(&mut self, a: usize) { self.number = a; self.note_dirty(); } + pub fn set_timestamp(&mut self, a: u64) { self.timestamp = a; self.note_dirty(); } + pub fn set_timestamp_now(&mut self) { self.timestamp = now_utc().to_timespec().sec as u64; self.note_dirty(); } pub fn set_author(&mut self, a: Address) { if a != self.author { self.author = a; self.note_dirty(); } } + pub fn set_extra_data(&mut self, a: Bytes) { if a != self.extra_data { self.extra_data = a; self.note_dirty(); } } + pub fn set_seal(&mut self, a: Vec) { self.seal = a; self.note_dirty(); } /// Get the hash of this header (sha3 of the RLP). diff --git a/src/lib.rs b/src/lib.rs index 0227d5e25..c8695b89d 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -78,6 +78,7 @@ extern crate flate2; extern crate rocksdb; extern crate heapsize; extern crate crypto; +extern crate time; extern crate env_logger; #[cfg(feature = "jit" )] diff --git a/src/spec.rs b/src/spec.rs index 377b9c0df..c106169fe 100644 --- a/src/spec.rs +++ b/src/spec.rs @@ -60,7 +60,7 @@ pub struct Spec { pub difficulty: U256, pub gas_limit: U256, pub gas_used: U256, - pub timestamp: U256, + pub timestamp: u64, pub extra_data: Bytes, pub genesis_state: HashMap, pub seal_fields: usize, @@ -92,8 +92,8 @@ impl Spec { pub fn genesis_header(&self) -> Header { Header { parent_hash: self.parent_hash.clone(), - timestamp: self.timestamp.clone(), - number: U256::from(0u8), + timestamp: self.timestamp, + number: 0, author: self.author.clone(), transactions_root: SHA3_NULL_RLP.clone(), uncles_hash: RlpStream::new_list(0).out().sha3(), @@ -181,7 +181,7 @@ impl Spec { difficulty: U256::from_str(&genesis["difficulty"].as_string().unwrap()[2..]).unwrap(), gas_limit: U256::from_str(&genesis["gasLimit"].as_string().unwrap()[2..]).unwrap(), gas_used: U256::from(0u8), - timestamp: U256::from_str(&genesis["timestamp"].as_string().unwrap()[2..]).unwrap(), + timestamp: u64::from_str(&genesis["timestamp"].as_string().unwrap()[2..]).unwrap(), extra_data: genesis["extraData"].as_string().unwrap()[2..].from_hex().unwrap(), genesis_state: state, seal_fields: seal_fields, diff --git a/src/views.rs b/src/views.rs index e66a46178..8e202d0b7 100644 --- a/src/views.rs +++ b/src/views.rs @@ -113,7 +113,7 @@ impl<'a> HeaderView<'a> { pub fn difficulty(&self) -> U256 { self.rlp.val_at(7) } /// Returns block number. - pub fn number(&self) -> U256 { self.rlp.val_at(8) } + pub fn number(&self) -> usize { self.rlp.val_at(8) } /// Returns block gas limit. pub fn gas_limit(&self) -> U256 { self.rlp.val_at(9) } @@ -122,7 +122,7 @@ impl<'a> HeaderView<'a> { pub fn gas_used(&self) -> U256 { self.rlp.val_at(10) } /// Returns timestamp. - pub fn timestamp(&self) -> U256 { self.rlp.val_at(11) } + pub fn timestamp(&self) -> u64 { self.rlp.val_at(11) } /// Returns block extra data. pub fn extra_data(&self) -> Bytes { self.rlp.val_at(12) }