Triomphe arc

Cargo.toml

@@ -2,7 +2,7 @@
 name = "value-log"
 description = "Value log implementation for key-value separated LSM storage"
 license = "MIT OR Apache-2.0"
-version = "1.1.0"
+version = "1.2.0"
 edition = "2021"
 rust-version = "1.74.0"
 readme = "README.md"
@@ -29,6 +29,7 @@ quick_cache = { version = "0.6.5", default-features = false }
 rustc-hash = "2.0.0"
 serde = { version = "1.0.204", optional = true, features = ["derive"] }
 tempfile = "3.12.0"
+triomphe = { version = "0.1.12", default-features = false }
 xxhash-rust = { version = "0.8.12", features = ["xxh3"] }
 
 [dev-dependencies]

src/config.rs

@@ -5,6 +5,9 @@
 use crate::{blob_cache::BlobCache, compression::Compressor};
 use std::sync::Arc;
 
+// TODO: 2.0.0 use triomphe::Arc everywhere
+// change blob cache API, so the user does not need to use Arc<> at all
+
 /// Value log configuration
 pub struct Config<C: Compressor + Clone> {
     /// Target size of vLog segments

src/id.rs

@@ -2,7 +2,8 @@
 // This source code is licensed under both the Apache 2.0 and MIT License
 // (found in the LICENSE-* files in the repository)
 
-use std::sync::{atomic::AtomicU64, Arc};
+use crate::Arc;
+use std::sync::atomic::AtomicU64;
 
 #[allow(clippy::module_name_repetitions)]
 pub type SegmentId = u64;

src/lib.rs

@@ -124,6 +124,7 @@ mod value_log;
 mod version;
 
 pub(crate) type HashMap<K, V> = std::collections::HashMap<K, V, xxhash_rust::xxh3::Xxh3Builder>;
+pub(crate) use triomphe::Arc;
 
 pub use {
     blob_cache::BlobCache,

src/manifest.rs

@@ -2,6 +2,7 @@
 // This source code is licensed under both the Apache 2.0 and MIT License
 // (found in the LICENSE-* files in the repository)
 
+use crate::Arc;
 use crate::{
     id::SegmentId,
     key_range::KeyRange,
@@ -13,7 +14,7 @@ use std::{
     io::{Cursor, Write},
     marker::PhantomData,
     path::{Path, PathBuf},
-    sync::{Arc, RwLock},
+    sync::RwLock,
 };
 
 pub const VLOG_MARKER: &str = ".vlog";

src/mock.rs

@@ -2,11 +2,9 @@
 // This source code is licensed under both the Apache 2.0 and MIT License
 // (found in the LICENSE-* files in the repository)
 
+use crate::Arc;
 use crate::{value::UserKey, IndexReader, IndexWriter, ValueHandle};
-use std::{
-    collections::BTreeMap,
-    sync::{Arc, RwLock},
-};
+use std::{collections::BTreeMap, sync::RwLock};
 
 type MockIndexInner = RwLock<BTreeMap<UserKey, (ValueHandle, u32)>>;
 

src/slice.rs

@@ -2,8 +2,8 @@
 // This source code is licensed under both the Apache 2.0 and MIT License
 // (found in the LICENSE-* files in the repository)
 
+use crate::Arc;
 use std::hash::Hash;
-use std::sync::Arc;
 
 /// An immutable byte slice that can be cloned without additional heap allocation
 #[derive(Debug, Clone, PartialEq, Eq, Hash, Ord, PartialOrd)]