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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/test-client/src/client_ext.rs
+2 -2
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@@ -30,7 +30,7 @@ pub trait TestClient {
/// Crates new client instance for tests.
fn new_for_tests() -> Self;
/// Justify and import block to the chain.
/// Justify and import block to the chain. Instant finality.
fn justify_and_import(&self, origin: client::BlockOrigin, block: runtime::Block) -> client::error::Result<()>;
/// Returns hash of the genesis block.
@@ -45,7 +45,7 @@ impl TestClient for Client<Backend, Executor, runtime::Block> {
fn justify_and_import(&self, origin: client::BlockOrigin, block: runtime::Block) -> client::error::Result<()> {
let justification = fake_justify(&block.header);
let justified = self.check_justification(block.header, justification)?;
self.import_block(origin, justified, Some(block.extrinsics))?;
self.import_block(origin, justified, Some(block.extrinsics), true)?;
Ok(())
}