Struct CondWait

pub struct CondWait {
    condvar: CondVar,
    w: Mutex<bool>,
}

CondWait is a wrapper struct for CondVar with a Mutex boolean flag.

Example

 use std::sync::Arc;

 use karyon_core::async_util::CondWait;
 use karyon_core::async_runtime::spawn;

  async {
     let cond_wait = Arc::new(CondWait::new());
     let task = spawn({
         let cond_wait = cond_wait.clone();
         async move {
             cond_wait.wait().await;
             // ...
         }
     });

     cond_wait.signal().await;
  };

Fields

condvar: CondVar

The CondVar

w: Mutex<bool>

Boolean flag

Implementations

impl CondWait

pub fn new() -> Self

Creates a new CondWait.

pub async fn wait(&self)

Waits for a signal or broadcast.

pub async fn signal(&self)

Signal a waiting task.

pub async fn broadcast(&self)

Signal all waiting tasks.

pub async fn reset(&self)

Reset the boolean flag value to false.

Trait Implementations

impl Default for CondWait

fn default() -> Self

Returns the “default value” for a type.