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DB-based light client backend (#250)

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* use db in light clients

* fixed comment

* fixed grumbles
This commit is contained in:
Svyatoslav Nikolsky
2018-06-29 17:10:10 +03:00
committed by Gav Wood
parent 0e905952e2
commit 4403d8a89e
2 changed files with 10 additions and 6 deletions
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polkadot/service/src/components.rs
+9 -5
View File
@@ -116,15 +116,19 @@ impl Components for FullComponents {
pub struct LightComponents;
impl Components for LightComponents {
type Backend = client::light::Backend<Block>;
type Backend = client::light::backend::Backend<client_db::light::LightStorage<Block>, network::OnDemand<Block, network::Service<Block>>>;
type Api = polkadot_api::light::RemotePolkadotApiWrapper<Self::Backend, Self::Executor>;
type Executor = client::RemoteCallExecutor<client::light::Backend<Block>, network::OnDemand<Block, network::Service<Block>>>;
type Executor = client::light::call_executor::RemoteCallExecutor<
client::light::blockchain::Blockchain<client_db::light::LightStorage<Block>, network::OnDemand<Block, network::Service<Block>>>,
network::OnDemand<Block, network::Service<Block>>>;
fn build_client(&self, _settings: client_db::DatabaseSettings, executor: CodeExecutor, genesis_storage: MakeStorage)
fn build_client(&self, db_settings: client_db::DatabaseSettings, executor: CodeExecutor, genesis_storage: MakeStorage)
-> Result<(Arc<client::Client<Self::Backend, Self::Executor, Block>>, Option<Arc<network::OnDemand<Block, network::Service<Block>>>>), error::Error> {
let client_backend = client::light::new_light_backend();
let fetch_checker = Arc::new(client::light::new_fetch_checker(client_backend.clone(), executor));
let db_storage = client_db::light::LightStorage::new(db_settings)?;
let light_blockchain = client::light::new_light_blockchain(db_storage);
let fetch_checker = Arc::new(client::light::new_fetch_checker(light_blockchain.clone(), executor));
let fetcher = Arc::new(network::OnDemand::new(fetch_checker));
let client_backend = client::light::new_light_backend(light_blockchain, fetcher.clone());
let client = client::light::new_light(client_backend, fetcher.clone(), genesis_storage)?;
Ok((Arc::new(client), Some(fetcher)))
}
polkadot/service/src/lib.rs
+1 -1
View File
@@ -136,7 +136,7 @@ impl<Components> Service<Components>
},
network_config: config.network,
chain: client.clone(),
on_demand: on_demand.clone().map(|d| d as Arc<network::OnDemandService>),
on_demand: on_demand.clone().map(|d| d as Arc<network::OnDemandService<Block>>),
transaction_pool: transaction_pool_adapter,
};
let network = network::Service::new(network_params)?;