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Make key value storage abstractions more accurate (#1267)

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* Layer do_atomically() abstractions properly

* Reduce allocs and DRY get_key_for_col()

* Parameterize HotColdDB with hot and cold item stores

* -impl Store for MemoryStore

* Replace Store uses with HotColdDB

* Ditch Store trait

* cargo fmt

* Style fix

* Readd missing dep that broke the build
This commit is contained in:
Adam Szkoda
2020-06-16 03:34:04 +02:00
committed by GitHub
parent 6b8c96662f
commit 9db0c28051
30 changed files with 589 additions and 575 deletions
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25
beacon_node/network/src/persisted_dht.rs
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@@ -1,13 +1,15 @@
use eth2_libp2p::Enr;
use rlp;
use std::sync::Arc;
use store::{DBColumn, Error as StoreError, Store, StoreItem};
use store::{DBColumn, Error as StoreError, HotColdDB, ItemStore, StoreItem};
use types::{EthSpec, Hash256};
/// 32-byte key for accessing the `DhtEnrs`.
pub const DHT_DB_KEY: &str = "PERSISTEDDHTPERSISTEDDHTPERSISTE";
pub fn load_dht<T: Store<E>, E: EthSpec>(store: Arc<T>) -> Vec<Enr> {
pub fn load_dht<E: EthSpec, Hot: ItemStore<E>, Cold: ItemStore<E>>(
store: Arc<HotColdDB<E, Hot, Cold>>,
) -> Vec<Enr> {
// Load DHT from store
let key = Hash256::from_slice(&DHT_DB_KEY.as_bytes());
match store.get_item(&key) {
@@ -20,8 +22,8 @@ pub fn load_dht<T: Store<E>, E: EthSpec>(store: Arc<T>) -> Vec<Enr> {
}
/// Attempt to persist the ENR's in the DHT to `self.store`.
pub fn persist_dht<T: Store<E>, E: EthSpec>(
store: Arc<T>,
pub fn persist_dht<E: EthSpec, Hot: ItemStore<E>, Cold: ItemStore<E>>(
store: Arc<HotColdDB<E, Hot, Cold>>,
enrs: Vec<Enr>,
) -> Result<(), store::Error> {
let key = Hash256::from_slice(&DHT_DB_KEY.as_bytes());
@@ -56,14 +58,19 @@ impl StoreItem for PersistedDht {
mod tests {
use super::*;
use eth2_libp2p::Enr;
use sloggers::{null::NullLoggerBuilder, Build};
use std::str::FromStr;
use std::sync::Arc;
use store::{MemoryStore, Store};
use types::Hash256;
use types::MinimalEthSpec;
use store::config::StoreConfig;
use store::{HotColdDB, MemoryStore};
use types::{ChainSpec, Hash256, MinimalEthSpec};
#[test]
fn test_persisted_dht() {
let store = Arc::new(MemoryStore::<MinimalEthSpec>::open());
let log = NullLoggerBuilder.build().unwrap();
let store: HotColdDB<
MinimalEthSpec,
MemoryStore<MinimalEthSpec>,
MemoryStore<MinimalEthSpec>,
> = HotColdDB::open_ephemeral(StoreConfig::default(), ChainSpec::minimal(), log).unwrap();
let enrs = vec![Enr::from_str("enr:-IS4QHCYrYZbAKWCBRlAy5zzaDZXJBGkcnh4MHcBFZntXNFrdvJjX04jRzjzCBOonrkTfj499SZuOh8R33Ls8RRcy5wBgmlkgnY0gmlwhH8AAAGJc2VjcDI1NmsxoQPKY0yuDUmstAHYpMa2_oxVtw0RW_QAdpzBQA8yWM0xOIN1ZHCCdl8").unwrap()];
let key = Hash256::from_slice(&DHT_DB_KEY.as_bytes());
store