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gossip: replace LRU cache (#4137)

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* peerset: remove unused dependencies

* gossip: replace lru cache

* header-metadata: replace lru cache
This commit is contained in:
André Silva
2019-11-19 09:58:06 +00:00
committed by Robert Habermeier
parent 10925510de
commit 9194b2a3c0
6 changed files with 21 additions and 25 deletions
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substrate/client/header-metadata/src/lib.rs
+4 -4
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@@ -19,7 +19,7 @@
use sr_primitives::traits::{Block as BlockT, NumberFor, Header};
use parking_lot::RwLock;
use lru_cache::LruCache;
use lru::LruCache;
/// Set to the expected max difference between `best` and `finalized` blocks at sync.
const LRU_CACHE_SIZE: usize = 5_000;
@@ -243,16 +243,16 @@ impl<Block: BlockT> HeaderMetadata<Block> for HeaderMetadataCache<Block> {
type Error = String;
fn header_metadata(&self, hash: Block::Hash) -> Result<CachedHeaderMetadata<Block>, Self::Error> {
self.cache.write().get_mut(&hash).cloned()
self.cache.write().get(&hash).cloned()
.ok_or("header metadata not found in cache".to_owned())
}
fn insert_header_metadata(&self, hash: Block::Hash, metadata: CachedHeaderMetadata<Block>) {
self.cache.write().insert(hash, metadata);
self.cache.write().put(hash, metadata);
}
fn remove_header_metadata(&self, hash: Block::Hash) {
self.cache.write().remove(&hash);
self.cache.write().pop(&hash);
}
}