Struct Closer 

pub struct Closer { /* private fields */ }

Available on crate feature std only.

Closer holds the two things we need to close a thread and wait for it to finish: a chan to tell the thread to shut down, and a WaitGroup with which to wait for it to finish shutting down.

Implementations

impl Closer

pub fn new(initial: usize) -> Self

Constructs a new Closer, with an initial count on the WaitGroup.

pub fn add_running(&self, running: usize)

Adds delta to the WaitGroup.

pub fn done(&self)

Calls WaitGroup::done on the WaitGroup.

pub fn signal(&self)

Signals the [Closer::has_been_closed] signal.

pub fn wait(&self)

Waits on the WaitGroup. (It waits for the Closer’s initial value, Closer::add_running, and Closer::done calls to balance out.)

pub fn signal_and_wait(&self)

Calls Closer::signal, then Closer::wait.

pub fn listen(&self) -> Receiver<()>

Listens for the Closer::signal signal.

Trait Implementations

impl Clone for Closer

fn clone(&self) -> Closer

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Closer

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

Formats the value using the given formatter.

impl Default for Closer

fn default() -> Self

Returns the “default value” for a type.