[−][src]Crate triomphe

Fork of Arc. This has the following advantages over std::sync::Arc:

triomphe::Arc doesn't support weak references: we save space by excluding the weak reference count, and we don't do extra read-modify-update operations to handle the possibility of weak references.
triomphe::UniqueArc allows one to construct a temporarily-mutable Arc which can be converted to a regular triomphe::Arc later
triomphe::OffsetArc can be used transparently from C++ code and is compatible with (and can be converted to/from) triomphe::Arc
triomphe::ArcBorrow is functionally similar to &triomphe::Arc<T>, however in memory it's simply &T. This makes it more flexible for FFI; the source of the borrow need not be an Arc pinned on the stack (and can instead be a pointer from C++, or an OffsetArc). Additionally, this helps avoid pointer-chasing.
triomphe::Arc has can be constructed for dynamically-sized types via from_header_and_iter
triomphe::ThinArc provides thin-pointer Arcs to dynamically sized types
triomphe::ArcUnion is union of two triomphe:Arcs which fits inside one word of memory

Structs

Arc	An atomically reference counted shared pointer
ArcBorrow	A "borrowed `Arc`". This is a pointer to a T that is known to have been allocated within an `Arc`.
ArcUnion	A tagged union that can represent `Arc<A>` or `Arc<B>` while only consuming a single word. The type is also `NonNull`, and thus can be stored in an Option without increasing size.
HeaderSlice	Structure to allow Arc-managing some fixed-sized data and a variably-sized slice in a single allocation.
HeaderWithLength	Header data with an inline length. Consumers that use HeaderWithLength as the Header type in HeaderSlice can take advantage of ThinArc.
OffsetArc	An `Arc`, except it holds a pointer to the T instead of to the entire ArcInner. This struct is FFI-compatible.
ThinArc	A "thin" `Arc` containing dynamically sized data
UniqueArc	An `Arc` that is known to be uniquely owned

This represents a borrow of an ArcUnion.