Enum Execution 

#[non_exhaustive]
pub enum Execution {
    Unspecified,
    Sequence,
    ForkJoin,
    #[non_exhaustive]
    WorkPool {
        max_parallelism: NonZero<usize>,
    },
}

How a phase’s work is scheduled. Declaring it schedules nothing.

On a leaf, it describes the leaf’s own units: WorkPool means several workers share one count. On a branch, it describes how the children run. When a phase splits, the execution passed to Pulse::split replaces the one in its PhaseSpec.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Unspecified

No scheduling relationship is declared.

Sequence

One after another, in declared order.

ForkJoin

Concurrently; all join before the parent finishes.

#[non_exhaustive]

WorkPool

Shared by a pool of at most max_parallelism workers. Build it with Execution::work_pool.

Fields

Non-exhaustive enum variants could have additional fields added in future. Therefore, non-exhaustive enum variants cannot be constructed in external crates and cannot be matched against.

max_parallelism: NonZero<usize>

The pool’s concurrency ceiling, not a count of dedicated cores.

Implementations

impl Execution

pub const fn work_pool(max_parallelism: NonZero<usize>) -> Execution

Work shared by a pool of at most max_parallelism workers, such as std::thread::available_parallelism() or a Rayon pool’s thread count.

Trait Implementations

impl Clone for Execution

fn clone(&self) -> Execution

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for Execution

impl Debug for Execution

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl Default for Execution

fn default() -> Execution

Returns the “default value” for a type.

impl Eq for Execution

impl PartialEq for Execution

fn eq(&self, other: &Execution) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for Execution