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don't batch best block for branches (#1623) (#1626)

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This commit is contained in:
Arkadiy Paronyan 2016-07-15 10:13:12 +02:00 committed by Gav Wood
parent ed5d797662
commit b7caa24c2e
1 changed files with 34 additions and 7 deletions
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41
ethcore/src/blockchain/blockchain.rs
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@ -488,7 +488,6 @@ impl BlockChain {
/// Applies extras update.
fn apply_update(&self, update: ExtrasUpdate) {
let batch = DBTransaction::new();
batch.put(b"best", &update.info.hash).unwrap();
{
for hash in update.block_details.keys().cloned() {
@ -511,14 +510,12 @@ impl BlockChain {
// These cached values must be updated last and togeterh
{
let mut best_block = self.best_block.write().unwrap();
let mut write_hashes = self.block_hashes.write().unwrap();
let mut write_txs = self.transaction_addresses.write().unwrap();
// update best block
match update.info.location {
BlockLocation::Branch => (),
_ => {
batch.put(b"best", &update.info.hash).unwrap();
let mut best_block = self.best_block.write().unwrap();
*best_block = BestBlock {
hash: update.info.hash,
number: update.info.number,
@ -527,8 +524,11 @@ impl BlockChain {
}
}
batch.extend_with_cache(write_hashes.deref_mut(), update.block_hashes, CacheUpdatePolicy::Remove);
batch.extend_with_cache(write_txs.deref_mut(), update.transactions_addresses, CacheUpdatePolicy::Remove);
let mut write_hashes = self.block_hashes.write().unwrap();
let mut write_txs = self.transaction_addresses.write().unwrap();
batch.extend_with_cache(&mut *write_hashes, update.block_hashes, CacheUpdatePolicy::Remove);
batch.extend_with_cache(&mut *write_txs, update.transactions_addresses, CacheUpdatePolicy::Remove);
// update extras database
self.extras_db.write(batch).unwrap();
@ -1189,4 +1189,31 @@ mod tests {
assert_eq!(blocks_b2, vec![2]);
assert_eq!(blocks_ba, vec![3]);
}
#[test]
fn test_best_block_update() {
let mut canon_chain = ChainGenerator::default();
let mut finalizer = BlockFinalizer::default();
let genesis = canon_chain.generate(&mut finalizer).unwrap();
let temp = RandomTempPath::new();
{
let bc = BlockChain::new(Config::default(), &genesis, temp.as_path());
let uncle = canon_chain.fork(1).generate(&mut finalizer.fork()).unwrap();
// create a longer fork
for _ in 0..5 {
let canon_block = canon_chain.generate(&mut finalizer).unwrap();
bc.insert_block(&canon_block, vec![]);
}
assert_eq!(bc.best_block_number(), 5);
bc.insert_block(&uncle, vec![]);
}
// re-loading the blockchain should load the correct best block.
let bc = BlockChain::new(Config::default(), &genesis, temp.as_path());
assert_eq!(bc.best_block_number(), 5);
}
}