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chore: misc tree notes,docs (#5184)
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@ -298,7 +298,7 @@ impl<DB: Database, EF: ExecutorFactory> BlockchainTree<DB, EF> {
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let parent = block.parent_num_hash();
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// check if block parent can be found in Tree
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// check if block parent can be found in any side chain.
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if let Some(chain_id) = self.block_indices().get_blocks_chain_id(&parent.hash) {
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// found parent in side tree, try to insert there
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return self.try_insert_block_into_side_chain(block, chain_id, block_validation_kind)
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@ -917,6 +917,7 @@ impl<DB: Database, EF: ExecutorFactory> BlockchainTree<DB, EF> {
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// If block is already canonical don't return error.
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if let Some(header) = self.find_canonical_header(block_hash)? {
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info!(target: "blockchain_tree", ?block_hash, "Block is already canonical, ignoring.");
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// TODO: this could be fetched from the chainspec first
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let td = self.externals.database().provider()?.header_td(block_hash)?.ok_or(
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CanonicalError::from(BlockValidationError::MissingTotalDifficulty {
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hash: *block_hash,
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@ -632,8 +632,9 @@ where
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return Ok(OnForkChoiceUpdated::invalid_state())
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}
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// check if the new head hash is connected to any ancestor that we previously marked as
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// invalid
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let lowest_buffered_ancestor_fcu = self.lowest_buffered_ancestor_or(state.head_block_hash);
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if let Some(status) = self.check_invalid_ancestor(lowest_buffered_ancestor_fcu) {
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return Ok(OnForkChoiceUpdated::with_invalid(status))
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}
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@ -659,6 +660,7 @@ where
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let start = Instant::now();
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let make_canonical_result = self.blockchain.make_canonical(&state.head_block_hash);
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let elapsed = self.record_make_canonical_latency(start, &make_canonical_result);
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let status = match make_canonical_result {
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Ok(outcome) => {
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match outcome {
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