| commit | 7247addcafb507faa9172a020d0769872a1962d7 | [log] [tgz] |
|---|---|---|
| author | James Farrell <jamesfarrell@google.com> | Wed Aug 07 15:31:04 2024 +0000 |
| committer | Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com> | Wed Aug 07 15:31:04 2024 +0000 |
| tree | a45931d72bea90fd4009a47259f679b40875f038 | |
| parent | 88cc6d0a2ab63d6591df44b05c9abce3cee25ea0 [diff] | |
| parent | 5990190eb41f51f8513d57cb2c23693158bae84b [diff] |
Update Android.bp by running cargo_embargo am: 5990190eb4 Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/fragile/+/3209052 Change-Id: I65fc78302d861b601e831eb620ef8b57d497b614 Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
This library provides wrapper types that permit sending non Send types to other threads and use runtime checks to ensure safety.
It provides the Fragile<T>, Sticky<T> and SemiSticky<T> types which are similar in nature but have different behaviors with regards to how destructors are executed. The Fragile<T> will panic if the destructor is called in another thread, Sticky<T> will temporarily leak the object until the thread shuts down. SemiSticky<T> is a compromise of the two. It behaves like Sticky<T> but it avoids the use of thread local storage if the type does not need Drop.
use std::thread; // creating and using a fragile object in the same thread works let val = Fragile::new(true); assert_eq!(*val.get(), true); assert!(val.try_get().is_ok()); // once send to another thread it stops working thread::spawn(move || { assert!(val.try_get().is_err()); }).join() .unwrap();