Commit 9b7d8d6a307586db6a2e2481ad34f275e50f9204
2024-05-20T20:39:50
Vulkan: Fix AtomicRefCounted threading issue The `AtomicRefCounted::getAndReleaseRef()` is used to decrement the reference counter and to destroy the object if there are no more uses. Decrement operation must use acquire-release memory ordering, in order to guarantee that all accesses from other threads happened before last thread checks that counter is "1" and destroys the object. Added comments to `releaseRef()` and `isReferenced()`, that these methods do not provide any synchronization, and can not be used to achieve same affect as `getAndReleaseRef()`. Relaxed ordering is kept for performance reasons. Bug: angleproject:8601 Change-Id: I8e5654416383e9490c23bc02fda9664216a81076 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/5573394 Reviewed-by: Charlie Lao <cclao@google.com> Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> Commit-Queue: Igor Nazarov <i.nazarov@samsung.com>