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WorkerPool

pharos_native::runtime::worker_pool

Struct WorkerPool 

Source 
pub struct WorkerPool<T>
where
    T: Send + 'static,
{
    sender: Mutex<Option<SyncSender<T>>>,
    shutdown: Arc<Atomic<bool>>,
    workers: Mutex<Vec<JoinHandle<()>>>,
}
Expand description

A bounded worker pool that executes an owned callback for each item.

§Fields

§Examples

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let _ = std::mem::size_of::<pharos_runtime_core::worker_pool::WorkerPool>();

Fields§

§sender: Mutex<Option<SyncSender<T>>>§shutdown: Arc<Atomic<bool>>§workers: Mutex<Vec<JoinHandle<()>>>

Implementations§

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impl<T> WorkerPool<T>
where T: Send + 'static,

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pub fn new( worker_count: usize, queue_capacity: usize, handler: Arc<dyn Fn(T) + Send + Sync>, ) -> Result<WorkerPool<T>, WorkerPoolError>

Creates a pool with a bounded queue and a shared item handler.

§Parameters
  • worker_count: Input consumed by [crate::worker_pool::new].
  • queue_capacity: Input consumed by [crate::worker_pool::new].
  • handler: Input consumed by [crate::worker_pool::new].
§Returns

Returns the successful value produced by [crate::worker_pool::new] or an error when the operation fails.

§Errors

Returns an error value when [crate::worker_pool::new] cannot complete successfully.

§Performance

Performance is proportional to the size of the supplied inputs and any parsed or loaded data consumed by [crate::worker_pool::new].

§Examples
ⓘ
let _result = pharos_runtime_core::worker_pool::new(todo!(), todo!(), todo!());
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pub fn enqueue(&self, item: T) -> Result<(), WorkerPoolError>

Enqueues one item without allowing the queue to grow without bound.

§Parameters
  • item: Input consumed by [crate::worker_pool::enqueue].
§Returns

Returns the successful value produced by [crate::worker_pool::enqueue] or an error when the operation fails.

§Errors

Returns an error value when [crate::worker_pool::enqueue] cannot complete successfully.

§Examples
ⓘ
let _result = pharos_runtime_core::worker_pool::enqueue(todo!());
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pub fn enqueue_with_rejection<F>( &self, item: T, reject: F, ) -> Result<(), WorkerPoolError>
where F: FnOnce(T),

Enqueues one item and returns ownership to a bounded overload handler when full.

§Parameters
  • item: Input consumed by [crate::worker_pool::enqueue_with_rejection].
  • reject: Input consumed by [crate::worker_pool::enqueue_with_rejection].
§Returns

Returns the successful value produced by [crate::worker_pool::enqueue_with_rejection] or an error when the operation fails.

§Errors

Returns an error value when [crate::worker_pool::enqueue_with_rejection] cannot complete successfully.

§Examples
ⓘ
let _result = pharos_runtime_core::worker_pool::enqueue_with_rejection(todo!(), todo!());
Source

pub fn request_shutdown(&self) -> Result<(), WorkerPoolError>

Requests shutdown and closes the queue to new work.

§Returns

Returns the successful value produced by [crate::worker_pool::request_shutdown] or an error when the operation fails.

§Errors

Returns an error value when [crate::worker_pool::request_shutdown] cannot complete successfully.

§Examples
ⓘ
let _result = pharos_runtime_core::worker_pool::request_shutdown();
Source

pub fn join(&self) -> Result<(), WorkerPoolError>

Joins all workers after shutdown has been requested.

§Returns

Returns the successful value produced by [crate::worker_pool::join] or an error when the operation fails.

§Errors

Returns an error value when [crate::worker_pool::join] cannot complete successfully.

§Performance

Performance is proportional to the size of the supplied inputs and any parsed or loaded data consumed by [crate::worker_pool::join].

§Examples
ⓘ
let _result = pharos_runtime_core::worker_pool::join();
Source

pub fn destroy(self) -> Result<(), WorkerPoolError>

Shuts down and joins the pool, releasing all worker handles.

§Returns

Returns the successful value produced by [crate::worker_pool::destroy] or an error when the operation fails.

§Errors

Returns an error value when [crate::worker_pool::destroy] cannot complete successfully.

§Examples
ⓘ
let _result = pharos_runtime_core::worker_pool::destroy();

Trait Implementations§

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impl<T> Drop for WorkerPool<T>
where T: Send + 'static,

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fn drop(&mut self)

Performs drop.

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fn pin_drop(self: Pin<&mut Self>)

🔬This is a nightly-only experimental API. (pin_ergonomics)
Execute the destructor for this type, but different to Drop::drop, it requires self to be pinned. Read more

Auto Trait Implementations§

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impl<T> !Freeze for WorkerPool<T>

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impl<T> RefUnwindSafe for WorkerPool<T>

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impl<T> Send for WorkerPool<T>

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impl<T> Sync for WorkerPool<T>

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impl<T> Unpin for WorkerPool<T>

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impl<T> UnsafeUnpin for WorkerPool<T>

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impl<T> UnwindSafe for WorkerPool<T>

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impl<T> Any for T
where T: 'static + ?Sized,

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Gets the TypeId of self. Read more
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Immutably borrows from an owned value. Read more
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Mutably borrows from an owned value. Read more
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fn compare(&self, key: &Q) -> Ordering

Compare self to key and return their ordering.
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