Struct ExpectedProcess 

pub struct ExpectedProcess<F> { /* private fields */ }

Accept one process of this OS user, whose PID expected returns when asked.

expected is called at most once per Policy::grant, and only after the same-user check passes. Like the policy, it must not block or perform I/O: return a PID the consumer already read, for example from a record it watches, or None when there is no process to accept.

Implementations

impl<F: Fn() -> Option<ProcessId>> ExpectedProcess<F>

pub const fn new(expected: F) -> Self

Accept the process expected names at connection time.

Trait Implementations

impl<F: Clone> Clone for ExpectedProcess<F>

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<F: Copy> Copy for ExpectedProcess<F>

impl<F: Fn() -> Option<ProcessId>> Policy for ExpectedProcess<F>

type Grant = PidMatch

What an accepted connection is allowed, in the consumer’s own terms.

fn grant(&self, credentials: &Credentials) -> Result<PidMatch, Rejected>

Grant access or say why not. Runs on the accepting task, so it must not block or perform I/O: read state the consumer keeps current elsewhere.