Messages in this thread | | | Date | Fri, 24 Feb 2023 21:32:15 +0900 | Subject | Re: [PATCH] rust: xarray: Add an abstraction for XArray | From | Asahi Lina <> |
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On 24/02/2023 20.44, Asahi Lina wrote: > The XArray is an abstract data type which behaves like a very large > array of pointers. Add a Rust abstraction for this data type. > > The initial implementation uses explicit locking on get operations and > returns a guard which blocks mutation, ensuring that the referenced > object remains alive. To avoid excessive serialization, users are > expected to use an inner type that can be efficiently cloned (such as > Arc<T>), and eagerly clone and drop the guard to unblock other users > after a lookup. > > Future variants may support using RCU instead to avoid mutex locking. > > This abstraction also introduces a reservation mechanism, which can be > used by alloc-capable XArrays to reserve a free slot without immediately > filling it, and then do so at a later time. If the reservation is > dropped without being filled, the slot is freed again for other users, > which eliminates the need for explicit cleanup code. > > Signed-off-by: Asahi Lina <lina@asahilina.net> > ---
I forgot to mention this depends on the Error series [1]. Sorry about that!
[1] https://lore.kernel.org/rust-for-linux/20230224-rust-error-v1-0-f8f9a9a87303@asahilina.net/T/#t
~~ Lina
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