Struct Context

pub struct Context {
    inner: Arc<Inner>,
}

🔬This is a nightly-only experimental API. (mpmc_channel #126840)

Thread-local context.

Fields

inner: Arc<Inner>

🔬This is a nightly-only experimental API. (mpmc_channel #126840)

Implementations

impl Context

pub fn with<F, R>(f: F) -> R

where F: FnOnce(&Context) -> R,

🔬This is a nightly-only experimental API. (mpmc_channel #126840)

Creates a new context for the duration of the closure.

fn new() -> Context

🔬This is a nightly-only experimental API. (mpmc_channel #126840)

Creates a new Context.

fn reset(&self)

🔬This is a nightly-only experimental API. (mpmc_channel #126840)

Resets select and packet.

pub fn try_select(&self, select: Selected) -> Result<(), Selected>

🔬This is a nightly-only experimental API. (mpmc_channel #126840)

Attempts to select an operation.

On failure, the previously selected operation is returned.

pub fn store_packet(&self, packet: *mut ())

🔬This is a nightly-only experimental API. (mpmc_channel #126840)

Stores a packet.

This method must be called after try_select succeeds and there is a packet to provide.

pub unsafe fn wait_until(&self, deadline: Option<Instant>) -> Selected

🔬This is a nightly-only experimental API. (mpmc_channel #126840)

Waits until an operation is selected and returns it.

If the deadline is reached, Selected::Aborted will be selected.

Safety

This may only be called from the thread this Context belongs to.

pub fn unpark(&self)

🔬This is a nightly-only experimental API. (mpmc_channel #126840)

Unparks the thread this context belongs to.

pub fn thread_id(&self) -> usize

🔬This is a nightly-only experimental API. (mpmc_channel #126840)

Returns the id of the thread this context belongs to.

Trait Implementations

impl Clone for Context

fn clone(&self) -> Context

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Context

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

Formats the value using the given formatter.