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Revert #2172, pretty much. (#2387)

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* Revert #2172, pretty much.

* Tidy up whitespace.

[ci:skip]

* Force CI.
This commit is contained in:
Gav Wood
2016-09-28 23:31:59 +02:00
committed by GitHub
parent f4dfbada0a
commit bb96849620
6 changed files with 42 additions and 38 deletions
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37
ethcore/src/block.rs
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@@ -70,7 +70,7 @@ impl Decodable for Block {
}
}
/// Internal type for a block's common elements.
/// An internal type for a block's common elements.
#[derive(Clone)]
pub struct ExecutedBlock {
base: Block,
@@ -206,6 +206,7 @@ pub struct ClosedBlock {
block: ExecutedBlock,
uncle_bytes: Bytes,
last_hashes: Arc<LastHashes>,
unclosed_state: State,
}
/// Just like `ClosedBlock` except that we can't reopen it and it's faster.
@@ -347,8 +348,7 @@ impl<'x> OpenBlock<'x> {
pub fn close(self) -> ClosedBlock {
let mut s = self;
// take a snapshot so the engine's changes can be rolled back.
s.block.state.snapshot();
let unclosed_state = s.block.state.clone();
s.engine.on_close_block(&mut s.block);
s.block.base.header.set_transactions_root(ordered_trie_root(s.block.base.transactions.iter().map(|e| e.rlp_bytes().to_vec())));
@@ -363,6 +363,7 @@ impl<'x> OpenBlock<'x> {
block: s.block,
uncle_bytes: uncle_bytes,
last_hashes: s.last_hashes,
unclosed_state: unclosed_state,
}
}
@@ -370,9 +371,6 @@ impl<'x> OpenBlock<'x> {
pub fn close_and_lock(self) -> LockedBlock {
let mut s = self;
// take a snapshot so the engine's changes can be rolled back.
s.block.state.snapshot();
s.engine.on_close_block(&mut s.block);
if s.block.base.header.transactions_root().is_zero() || s.block.base.header.transactions_root() == &SHA3_NULL_RLP {
s.block.base.header.set_transactions_root(ordered_trie_root(s.block.base.transactions.iter().map(|e| e.rlp_bytes().to_vec())));
@@ -389,11 +387,10 @@ impl<'x> OpenBlock<'x> {
s.block.base.header.set_log_bloom(s.block.receipts.iter().fold(LogBloom::zero(), |mut b, r| {b = &b | &r.log_bloom; b})); //TODO: use |= operator
s.block.base.header.set_gas_used(s.block.receipts.last().map_or(U256::zero(), |r| r.gas_used));
ClosedBlock {
LockedBlock {
block: s.block,
uncle_bytes: uncle_bytes,
last_hashes: s.last_hashes,
}.lock()
}
}
}
@@ -415,16 +412,6 @@ impl ClosedBlock {
/// Turn this into a `LockedBlock`, unable to be reopened again.
pub fn lock(mut self) -> LockedBlock {
// finalize the changes made by the engine.
self.block.state.clear_snapshot();
if let Err(e) = self.block.state.commit() {
warn!("Error committing closed block's state: {:?}", e);
}
// set the state root here, after commit recalculates with the block
// rewards.
self.block.base.header.set_state_root(self.block.state.root().clone());
LockedBlock {
block: self.block,
uncle_bytes: self.uncle_bytes,
@@ -432,12 +419,12 @@ impl ClosedBlock {
}
/// Given an engine reference, reopen the `ClosedBlock` into an `OpenBlock`.
pub fn reopen(mut self, engine: &Engine) -> OpenBlock {
pub fn reopen(self, engine: &Engine) -> OpenBlock {
// revert rewards (i.e. set state back at last transaction's state).
self.block.state.revert_snapshot();
let mut block = self.block;
block.state = self.unclosed_state;
OpenBlock {
block: self.block,
block: block,
engine: engine,
last_hashes: self.last_hashes,
}
@@ -463,11 +450,11 @@ impl LockedBlock {
/// Provide a valid seal in order to turn this into a `SealedBlock`.
/// This does check the validity of `seal` with the engine.
/// Returns the `ClosedBlock` back again if the seal is no good.
pub fn try_seal(self, engine: &Engine, seal: Vec<Bytes>) -> Result<SealedBlock, LockedBlock> {
pub fn try_seal(self, engine: &Engine, seal: Vec<Bytes>) -> Result<SealedBlock, (Error, LockedBlock)> {
let mut s = self;
s.block.base.header.set_seal(seal);
match engine.verify_block_seal(&s.block.base.header) {
Err(_) => Err(s),
Err(e) => Err((e, s)),
_ => Ok(SealedBlock { block: s.block, uncle_bytes: s.uncle_bytes }),
}
}