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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-06-12 05:43:14 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-06-12 05:43:14 +0000 |
commit | 8dd16259287f58f9273002717ec4d27e97127719 (patch) | |
tree | 3863e62a53829a84037444beab3abd4ed9dfc7d0 /third_party/rust/wgpu-core/src/registry.rs | |
parent | Releasing progress-linux version 126.0.1-1~progress7.99u1. (diff) | |
download | firefox-8dd16259287f58f9273002717ec4d27e97127719.tar.xz firefox-8dd16259287f58f9273002717ec4d27e97127719.zip |
Merging upstream version 127.0.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'third_party/rust/wgpu-core/src/registry.rs')
-rw-r--r-- | third_party/rust/wgpu-core/src/registry.rs | 89 |
1 files changed, 76 insertions, 13 deletions
diff --git a/third_party/rust/wgpu-core/src/registry.rs b/third_party/rust/wgpu-core/src/registry.rs index 80394351af..f0f5674dae 100644 --- a/third_party/rust/wgpu-core/src/registry.rs +++ b/third_party/rust/wgpu-core/src/registry.rs @@ -1,11 +1,11 @@ use std::sync::Arc; -use parking_lot::{RwLock, RwLockReadGuard, RwLockWriteGuard}; use wgt::Backend; use crate::{ id::Id, identity::IdentityManager, + lock::{rank, RwLock, RwLockReadGuard, RwLockWriteGuard}, resource::Resource, storage::{Element, InvalidId, Storage}, }; @@ -37,7 +37,8 @@ impl RegistryReport { /// any other dependent resource /// #[derive(Debug)] -pub struct Registry<T: Resource> { +pub(crate) struct Registry<T: Resource> { + // Must only contain an id which has either never been used or has been released from `storage` identity: Arc<IdentityManager<T::Marker>>, storage: RwLock<Storage<T>>, backend: Backend, @@ -47,7 +48,7 @@ impl<T: Resource> Registry<T> { pub(crate) fn new(backend: Backend) -> Self { Self { identity: Arc::new(IdentityManager::new()), - storage: RwLock::new(Storage::new()), + storage: RwLock::new(rank::REGISTRY_STORAGE, Storage::new()), backend, } } @@ -78,21 +79,26 @@ impl<T: Resource> FutureId<'_, T> { Arc::new(value) } + pub fn init_in_place(&self, mut value: Arc<T>) -> Arc<T> { + Arc::get_mut(&mut value) + .unwrap() + .as_info_mut() + .set_id(self.id); + value + } + /// Assign a new resource to this ID. /// /// Registers it with the registry, and fills out the resource info. - pub fn assign(self, value: T) -> (Id<T::Marker>, Arc<T>) { + pub fn assign(self, value: Arc<T>) -> (Id<T::Marker>, Arc<T>) { let mut data = self.data.write(); - data.insert(self.id, self.init(value)); + data.insert(self.id, self.init_in_place(value)); (self.id, data.get(self.id).unwrap().clone()) } /// Assign an existing resource to a new ID. /// /// Registers it with the registry. - /// - /// This _will_ leak the ID, and it will not be recycled again. - /// See https://github.com/gfx-rs/wgpu/issues/4912. pub fn assign_existing(self, value: &Arc<T>) -> Id<T::Marker> { let mut data = self.data.write(); debug_assert!(!data.contains(self.id)); @@ -138,28 +144,35 @@ impl<T: Resource> Registry<T> { pub(crate) fn write<'a>(&'a self) -> RwLockWriteGuard<'a, Storage<T>> { self.storage.write() } - pub fn unregister_locked(&self, id: Id<T::Marker>, storage: &mut Storage<T>) -> Option<Arc<T>> { + pub(crate) fn unregister_locked( + &self, + id: Id<T::Marker>, + storage: &mut Storage<T>, + ) -> Option<Arc<T>> { self.identity.free(id); storage.remove(id) } - pub fn force_replace(&self, id: Id<T::Marker>, mut value: T) { + pub(crate) fn force_replace(&self, id: Id<T::Marker>, mut value: T) { let mut storage = self.storage.write(); value.as_info_mut().set_id(id); storage.force_replace(id, value) } - pub fn force_replace_with_error(&self, id: Id<T::Marker>, label: &str) { + pub(crate) fn force_replace_with_error(&self, id: Id<T::Marker>, label: &str) { let mut storage = self.storage.write(); storage.remove(id); storage.insert_error(id, label); } pub(crate) fn unregister(&self, id: Id<T::Marker>) -> Option<Arc<T>> { - self.identity.free(id); let value = self.storage.write().remove(id); + // This needs to happen *after* removing it from the storage, to maintain the + // invariant that `self.identity` only contains ids which are actually available + // See https://github.com/gfx-rs/wgpu/issues/5372 + self.identity.free(id); //Returning None is legal if it's an error ID value } - pub fn label_for_resource(&self, id: Id<T::Marker>) -> String { + pub(crate) fn label_for_resource(&self, id: Id<T::Marker>) -> String { let guard = self.storage.read(); let type_name = guard.kind(); @@ -197,3 +210,53 @@ impl<T: Resource> Registry<T> { report } } + +#[cfg(test)] +mod tests { + use std::sync::Arc; + + use crate::{ + id::Marker, + resource::{Resource, ResourceInfo, ResourceType}, + }; + + use super::Registry; + struct TestData { + info: ResourceInfo<TestData>, + } + struct TestDataId; + impl Marker for TestDataId {} + + impl Resource for TestData { + type Marker = TestDataId; + + const TYPE: ResourceType = "Test data"; + + fn as_info(&self) -> &ResourceInfo<Self> { + &self.info + } + + fn as_info_mut(&mut self) -> &mut ResourceInfo<Self> { + &mut self.info + } + } + + #[test] + fn simultaneous_registration() { + let registry = Registry::without_backend(); + std::thread::scope(|s| { + for _ in 0..5 { + s.spawn(|| { + for _ in 0..1000 { + let value = Arc::new(TestData { + info: ResourceInfo::new("Test data", None), + }); + let new_id = registry.prepare(None); + let (id, _) = new_id.assign(value); + registry.unregister(id); + } + }); + } + }) + } +} |