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Snapshot format changes (#2234)

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Closes #2213
Omit transaction and receipt roots from abridged block.
No longer use RLP compression.

Make ordered_trie_root generic over an iterator to save an allocation.

Breaks snapshot format backwards compatibility (with other 1.4 snapshots -- it's already been broken with 1.3).

Documentation will need updating
This commit is contained in:
Robert Habermeier
2016-09-22 19:47:03 +02:00
committed by Gav Wood
parent 862feb7172
commit 723d837d05
6 changed files with 50 additions and 35 deletions
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2
sync/src/blocks.rs
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@@ -233,7 +233,7 @@ impl BlockCollection {
fn insert_body(&mut self, b: Bytes) -> Result<(), NetworkError> {
let body = UntrustedRlp::new(&b);
let tx = try!(body.at(0));
let tx_root = ordered_trie_root(tx.iter().map(|r| r.as_raw().to_vec()).collect()); //TODO: get rid of vectors here
let tx_root = ordered_trie_root(tx.iter().map(|r| r.as_raw().to_vec())); //TODO: get rid of vectors here
let uncles = try!(body.at(1)).as_raw().sha3();
let header_id = HeaderId {
transactions_root: tx_root,