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Introduce notion of finality to substrate (#760)

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* finalization for in_mem

* fetch last finalized block

* pruning: use canonical term instead of final

* finalize blocks in full node

* begin to port light client DB

* add tree-route

* keep number index consistent in full nodes

* fix tests

* disable cache and finish porting light client

* add AsMut to system module

* final leaf is always best

* fix all tests

* Fix comment and trace

* removed unused Into call

* add comment on behavior of `finalize_block`
This commit is contained in:
Robert Habermeier
2018-09-21 15:56:21 +02:00
committed by Gav Wood
parent 28cc4d0fd6
commit b7d095a2e0
19 changed files with 976 additions and 370 deletions
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substrate/core/network/src/chain.rs
+2 -2
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@@ -62,9 +62,9 @@ impl<B, E, Block> Client<Block> for SubstrateClient<B, E, Block> where
Block: BlockT,
{
fn import(&self, origin: BlockOrigin, header: Block::Header, justification: Justification<Block::Hash>, body: Option<Vec<Block::Extrinsic>>) -> Result<ImportResult, Error> {
// TODO: defer justification check.
// TODO: defer justification check and non-instant finality.
let justified_header = self.check_justification(header, justification.into())?;
(self as &SubstrateClient<B, E, Block>).import_block(origin, justified_header, body)
(self as &SubstrateClient<B, E, Block>).import_block(origin, justified_header, body, true)
}
fn info(&self) -> Result<ClientInfo<Block>, Error> {