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CompletionThreads

rama::tcp::posted_recv

Struct CompletionThreads

pub struct CompletionThreads { /* private fields */ }

Available on crate features std and tcp only.

Expand description

How many threads complete the posted receives of the process.

Every PostedRecv of the process shares these threads, which only exist on Windows; elsewhere this configures nothing.

They start as needed: one when the first stream is wrapped, then another whenever the running ones are all busy with a backlog of completions, up to max_threads. A thread that has nothing to do for idle_timeout exits, as long as min_threads keep running.

Use set_completion_threads to change it for the process.

Implementations§

impl CompletionThreads

pub fn new() -> CompletionThreads

The default: at least one thread, at most one per CPU up to eight, and a thread above the minimum exits after 30 seconds without work.

pub fn single() -> CompletionThreads

Always exactly one thread, which never scales.

pub fn with_min_threads(self, threads: usize) -> CompletionThreads

Threads kept running even without work (at least 1). Raises the maximum to match if needed.

pub fn set_min_threads(&mut self, threads: usize) -> &mut CompletionThreads

Threads kept running even without work (at least 1). Raises the maximum to match if needed.

pub fn with_max_threads(self, threads: usize) -> CompletionThreads

Most threads started under load (at least the minimum).

pub fn set_max_threads(&mut self, threads: usize) -> &mut CompletionThreads

Most threads started under load (at least the minimum).

pub fn with_idle_timeout(self, timeout: Duration) -> CompletionThreads

How long a thread above the minimum waits for work before it exits (at least one millisecond).

pub fn set_idle_timeout(&mut self, timeout: Duration) -> &mut CompletionThreads

How long a thread above the minimum waits for work before it exits (at least one millisecond).

pub const fn min_threads(&self) -> usize

Threads kept running even without work.

pub const fn max_threads(&self) -> usize

Most threads started under load.

pub const fn idle_timeout(&self) -> Duration

How long a thread above the minimum waits for work before it exits.

Trait Implementations§

impl Clone for CompletionThreads

fn clone(&self) -> CompletionThreads

Returns a duplicate of the value. Read more

1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more

impl Copy for CompletionThreads

impl Debug for CompletionThreads

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

Formats the value using the given formatter. Read more

impl Default for CompletionThreads

fn default() -> CompletionThreads

Returns the “default value” for a type. Read more

impl Eq for CompletionThreads

impl PartialEq for CompletionThreads

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

Equality operator ==. Read more

1.0.0 (const: unstable) · Source§

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

Inequality operator !=. Read more

impl StructuralPartialEq for CompletionThreads

Auto Trait Implementations§

impl Freeze for CompletionThreads

impl RefUnwindSafe for CompletionThreads

impl Send for CompletionThreads

impl Sync for CompletionThreads

impl Unpin for CompletionThreads

impl UnsafeUnpin for CompletionThreads

impl UnwindSafe for CompletionThreads

Blanket Implementations§

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