Struct JobPool 

pub struct JobPool { /* private fields */ }

A dedicated thread pool for per-frame data-parallel work.

Implementations

impl JobPool

pub fn thread_count(&self) -> usize

Number of worker threads in this pool.

pub fn parallel_for<T, F>(&self, items: &mut [T], f: F)

where T: Send, F: Fn(&mut T) + Send + Sync,

Apply f to every item in parallel, blocking until all are done.

Each item must be independent: f runs concurrently across items in no defined order. Inputs shorter than two items skip the pool and run inline to avoid dispatch overhead.

pub fn install<R, F>(&self, f: F) -> R

where F: FnOnce() -> R + Send, R: Send,

Run a closure inside this pool’s scope so any nested rayon par_iter / par_iter_mut calls dispatch to JobPool’s bounded thread count (available_parallelism() - 1) instead of rayon’s global pool (which defaults to every core and would starve the render thread when invoked from a worker that is itself competing for CPU).

Used by the DirectX / Metal parallel command-buffer recording; the Vulkan backend records single-threaded, so it is unused under backend_vk.