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Header-only sync for old forks (#3942)

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* Header-only sync for old forks

* Simplified blocks-count

* Update core/consensus/common/src/block_import.rs

Co-Authored-By: Marcio Diaz <marcio.diaz@gmail.com>
This commit is contained in:
Arkadiy Paronyan
2019-11-05 12:17:12 +01:00
committed by Gavin Wood
parent 279391f9c1
commit 172359adad
11 changed files with 178 additions and 80 deletions
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substrate/core/client/db/src/lib.rs
+26 -15
View File
@@ -894,6 +894,12 @@ impl<Block: BlockT<Hash=H256>> Backend<Block> {
inmem
}
/// Returns total numbet of blocks (headers) in the block DB.
#[cfg(feature = "test-helpers")]
pub fn blocks_count(&self) -> u64 {
self.blockchain.db.iter(columns::HEADER).count() as u64
}
/// Read (from storage or cache) changes trie config.
///
/// Currently changes tries configuration is set up once (at genesis) and could not
@@ -1115,7 +1121,7 @@ impl<Block: BlockT<Hash=H256>> Backend<Block> {
);
transaction.put(columns::HEADER, &lookup_key, &pending_block.header.encode());
if let Some(body) = pending_block.body {
if let Some(body) = &pending_block.body {
transaction.put(columns::BODY, &lookup_key, &body.encode());
}
if let Some(justification) = pending_block.justification {
@@ -1127,21 +1133,26 @@ impl<Block: BlockT<Hash=H256>> Backend<Block> {
transaction.put(columns::META, meta_keys::GENESIS_HASH, hash.as_ref());
}
let mut changeset: state_db::ChangeSet<Vec<u8>> = state_db::ChangeSet::default();
for (key, (val, rc)) in operation.db_updates.drain() {
if rc > 0 {
changeset.inserted.push((key, val.to_vec()));
} else if rc < 0 {
changeset.deleted.push(key);
let finalized = if pending_block.body.is_some() {
let mut changeset: state_db::ChangeSet<Vec<u8>> = state_db::ChangeSet::default();
for (key, (val, rc)) in operation.db_updates.drain() {
if rc > 0 {
changeset.inserted.push((key, val.to_vec()));
} else if rc < 0 {
changeset.deleted.push(key);
}
}
}
let number_u64 = number.saturated_into::<u64>();
let commit = self.storage.state_db.insert_block(&hash, number_u64, &pending_block.header.parent_hash(), changeset)
.map_err(|e: state_db::Error<io::Error>| client::error::Error::from(format!("State database error: {:?}", e)))?;
apply_state_commit(&mut transaction, commit);
let number_u64 = number.saturated_into::<u64>();
let commit = self.storage.state_db.insert_block(&hash, number_u64, &pending_block.header.parent_hash(), changeset)
.map_err(|e: state_db::Error<io::Error>| client::error::Error::from(format!("State database error: {:?}", e)))?;
apply_state_commit(&mut transaction, commit);
// Check if need to finalize. Genesis is always finalized instantly.
let finalized = number_u64 == 0 || pending_block.leaf_state.is_final();
// Check if need to finalize. Genesis is always finalized instantly.
let finalized = number_u64 == 0 || pending_block.leaf_state.is_final();
finalized
} else {
false
};
let header = &pending_block.header;
let is_best = pending_block.leaf_state.is_best();
@@ -1581,7 +1592,7 @@ mod tests {
};
let mut op = backend.begin_operation().unwrap();
backend.begin_state_operation(&mut op, block_id).unwrap();
op.set_block_data(header, None, None, NewBlockState::Best).unwrap();
op.set_block_data(header, Some(Vec::new()), None, NewBlockState::Best).unwrap();
op.update_changes_trie((changes_trie_update, ChangesTrieCacheAction::Clear)).unwrap();
backend.commit_operation(op).unwrap();