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Use header cache for blockhain cache (#5929)

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This commit is contained in:
Arkadiy Paronyan
2020-05-07 12:49:30 +02:00
committed by GitHub
parent eff1680aed
commit 427c33f16f
5 changed files with 34 additions and 23 deletions
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substrate/client/db/src/light.rs
+6 -4
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@@ -62,7 +62,7 @@ pub struct LightStorage<Block: BlockT> {
db: Arc<dyn Database<DbHash>>,
meta: RwLock<Meta<NumberFor<Block>, Block::Hash>>,
cache: Arc<DbCacheSync<Block>>,
header_metadata_cache: HeaderMetadataCache<Block>,
header_metadata_cache: Arc<HeaderMetadataCache<Block>>,
#[cfg(not(target_os = "unknown"))]
io_stats: FrozenForDuration<kvdb::IoStats>,
@@ -84,8 +84,10 @@ impl<Block: BlockT> LightStorage<Block> {
fn from_kvdb(db: Arc<dyn Database<DbHash>>) -> ClientResult<Self> {
let meta = read_meta::<Block>(&*db, columns::HEADER)?;
let header_metadata_cache = Arc::new(HeaderMetadataCache::default());
let cache = DbCache::new(
db.clone(),
header_metadata_cache.clone(),
columns::KEY_LOOKUP,
columns::HEADER,
columns::CACHE,
@@ -97,7 +99,7 @@ impl<Block: BlockT> LightStorage<Block> {
db,
meta: RwLock::new(meta),
cache: Arc::new(DbCacheSync(RwLock::new(cache))),
header_metadata_cache: HeaderMetadataCache::default(),
header_metadata_cache,
#[cfg(not(target_os = "unknown"))]
io_stats: FrozenForDuration::new(std::time::Duration::from_secs(1)),
})
@@ -188,7 +190,7 @@ impl<Block: BlockT> HeaderMetadata<Block> for LightStorage<Block> {
type Error = ClientError;
fn header_metadata(&self, hash: Block::Hash) -> Result<CachedHeaderMetadata<Block>, Self::Error> {
self.header_metadata_cache.header_metadata(hash).or_else(|_| {
self.header_metadata_cache.header_metadata(hash).map_or_else(|| {
self.header(BlockId::hash(hash))?.map(|header| {
let header_metadata = CachedHeaderMetadata::from(&header);
self.header_metadata_cache.insert_header_metadata(
@@ -197,7 +199,7 @@ impl<Block: BlockT> HeaderMetadata<Block> for LightStorage<Block> {
);
header_metadata
}).ok_or(ClientError::UnknownBlock(format!("header not found in db: {}", hash)))
})
}, Ok)
}
fn insert_header_metadata(&self, hash: Block::Hash, metadata: CachedHeaderMetadata<Block>) {