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Allow for customisation of chain selection systems (#2240)

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* move SelectChain trait out of client

* Extend SelectChain, move longest chain implementation into it

* Bring SelectChain into service

* implement LongestChain SelectChain

* implement longest chain for node

* update Cargo.lock's

* in between erroring tests

* deprecate ::backend and ::import_lock

* Remove unneded space

Co-Authored-By: gnunicorn <ben.kampmann@googlemail.com>

* Remove unneded space

Co-Authored-By: gnunicorn <ben.kampmann@googlemail.com>

* Fixes test compilation

* remove todo

* re-enable client test

* add doc

* fixing tests

* Clarify SelectChain Interface, intended implementation and usage

* minor components cleanups

* minor cleanups

* Update lock files

* Implement cleaner interface for SelectChain

* addressing comments

* Updating tests

* bump node runtime impl version

* address grumbles
This commit is contained in:
Benjamin Kampmann
2019-05-10 14:08:12 +02:00
committed by Gavin Wood
parent 32fdeed21c
commit 18ca0170c3
22 changed files with 717 additions and 339 deletions
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substrate/core/consensus/rhd/src/service.rs
+5 -5
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@@ -22,7 +22,7 @@ use std::thread;
use std::time::{Duration, Instant};
use std::sync::Arc;
use client::{BlockchainEvents, ChainHead, BlockBody};
use client::{BlockchainEvents, BlockBody};
use futures::prelude::*;
use transaction_pool::txpool::{Pool as TransactionPool, ChainApi as PoolChainApi};
use runtime_primitives::traits::{Block as BlockT, Header as HeaderT, BlockNumberToHash};
@@ -33,7 +33,7 @@ use tokio::runtime::current_thread::Runtime as LocalRuntime;
use tokio::timer::Interval;
use parking_lot::RwLock;
use consensus::offline_tracker::OfflineTracker;
use consensus::{self, offline_tracker::OfflineTracker};
use super::{Network, ProposerFactory, AuthoringApi};
use {consensus, primitives, ed25519, error, BftService, LocalProposer};
@@ -87,9 +87,9 @@ impl Service {
A: AuthoringApi + BlockNumberToHash + 'static,
P: PoolChainApi<Block = <A as AuthoringApi>::Block> + 'static,
C: BlockchainEvents<<A as AuthoringApi>::Block>
+ ChainHead<<A as AuthoringApi>::Block>
+ BlockBody<<A as AuthoringApi>::Block>,
C: consensus::BlockImport<<A as AuthoringApi>::Block>
+ BlockBody<<A as AuthoringApi>::Block>
+ consensus::SelectChain<<A as AuthoringApi>::Block>
+ consensus::BlockImport<<A as AuthoringApi>::Block>
+ consensus::Authorities<<A as AuthoringApi>::Block> + Send + Sync + 'static,
primitives::H256: From<<<A as AuthoringApi>::Block as BlockT>::Hash>,
<<A as AuthoringApi>::Block as BlockT>::Hash: PartialEq<primitives::H256> + PartialEq,