Merge pull request #238 from japaric/arc-pool

add Arc pointer backed by a memory pool

Author: korken89

src/lib.rs

@@ -43,6 +43,7 @@
 //!
 //! List of currently implemented data structures:
 //!
+//! - [`Arc`](pool/singleton/arc/struct.Arc.html) -- Thread-safe reference-counting pointer backed by a memory pool
 //! - [`BinaryHeap`](binary_heap/struct.BinaryHeap.html) -- priority queue
 //! - [`IndexMap`](struct.IndexMap.html) -- hash table
 //! - [`IndexSet`](struct.IndexSet.html) -- hash set
@@ -79,6 +80,8 @@ pub use histbuf::HistoryBuffer;
 pub use indexmap::{Bucket, FnvIndexMap, IndexMap, Pos};
 pub use indexset::{FnvIndexSet, IndexSet};
 pub use linear_map::LinearMap;
+#[cfg(all(has_cas, feature = "cas"))]
+pub use pool::singleton::arc::Arc;
 pub use string::String;
 pub use vec::Vec;
 

src/pool/singleton.rs

@@ -12,6 +12,8 @@ use core::{
 
 use super::{Init, Node, Uninit};
 
+pub mod arc;
+
 /// Instantiates a pool as a global singleton
 // NOTE(any(test)) makes testing easier (no need to enable Cargo features for testing)
 #[cfg(any(