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do not clone pending transaction hashes

This commit is contained in:
debris 2016-05-26 12:44:17 +02:00
parent f811fdc2cd
commit 6fd9780e60
1 changed files with 11 additions and 7 deletions
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18
rpc/src/v1/impls/eth.rs
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@ -674,14 +674,18 @@ impl<C, M> EthFilter for EthFilterClient<C, M> where
PollFilter::PendingTransaction(ref mut previous_hashes) => {
// get hashes of pending transactions
let current_hashes = take_weak!(self.miner).pending_transactions_hashes();
let previous_hashes_set = previous_hashes.into_iter().map(|h| h.clone()).collect::<HashSet<H256>>();
// find all new hashes
let new_hashes = current_hashes
.iter()
.filter(|hash| !previous_hashes_set.contains(&hash))
.cloned()
.collect::<Vec<H256>>();
let new_hashes =
{
let previous_hashes_set = previous_hashes.iter().collect::<HashSet<_>>();
// find all new hashes
current_hashes
.iter()
.filter(|hash| !previous_hashes_set.contains(hash))
.cloned()
.collect::<Vec<H256>>()
};
// save all hashes of pending transactions
*previous_hashes = current_hashes;