batch state trie writes
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6977d335e9
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6ecd6eaa12
@ -498,6 +498,7 @@ impl BlockChainClient for TestBlockChainClient {
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// import right here
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let tx = transactions.into_iter().filter_map(|bytes| UntrustedRlp::new(&bytes).as_val().ok()).collect();
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self.import_transactions(tx);
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}
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fn take_snapshot(&self, _root_dir: &Path) {
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unimplemented!()
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@ -292,6 +292,7 @@ impl StateRebuilder {
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pub fn feed(&mut self, compressed: &[u8]) -> Result<(), Error> {
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let len = try!(snappy::decompress_into(compressed, &mut self.snappy_buffer));
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let rlp = UntrustedRlp::new(&self.snappy_buffer[..len]);
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let mut pairs = Vec::with_capacity(rlp.item_count());
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for account_pair in rlp.iter() {
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let hash: H256 = try!(account_pair.val_at(0));
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@ -305,12 +306,20 @@ impl StateRebuilder {
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acc.to_thin_rlp()
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};
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pairs.push((hash, thin_rlp));
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}
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// batch trie writes
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{
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let mut account_trie = if self.state_root != H256::zero() {
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try!(TrieDBMut::from_existing(self.db.as_hashdb_mut(), &mut self.state_root))
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} else {
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TrieDBMut::new(self.db.as_hashdb_mut(), &mut self.state_root)
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};
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account_trie.insert(&hash, &thin_rlp);
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for (hash, thin_rlp) in pairs {
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account_trie.insert(&hash, &thin_rlp);
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}
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}
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try!(self.db.commit(0, &H256::zero(), None));
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