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/*******************************************************************************
*
* Copyright (c) 2025 - 2026 Haixing Hu.
*
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0.
*
******************************************************************************/
//! Asynchronous timeout condition-wait capability.
use std::time::Duration;
use crate::monitor::{
AsyncConditionWaiter,
AsyncMonitorFuture,
WaitTimeoutResult,
};
/// Waits asynchronously for predicates over protected state with timeouts.
pub trait AsyncTimeoutConditionWaiter: AsyncConditionWaiter {
/// Returns a future that waits until the predicate becomes true or times out.
///
/// The timeout budget is measured from this method call.
fn async_wait_until_for<'a, R, P, F>(
&'a self,
timeout: Duration,
predicate: P,
action: F,
) -> AsyncMonitorFuture<'a, WaitTimeoutResult<R>>
where
R: Send + 'a,
P: FnMut(&Self::State) -> bool + Send + 'a,
F: FnOnce(&mut Self::State) -> R + Send + 'a;
/// Returns a future that waits while the predicate remains true or times out.
///
/// The timeout budget is measured from this method call.
fn async_wait_while_for<'a, R, P, F>(
&'a self,
timeout: Duration,
predicate: P,
action: F,
) -> AsyncMonitorFuture<'a, WaitTimeoutResult<R>>
where
R: Send + 'a,
P: FnMut(&Self::State) -> bool + Send + 'a,
F: FnOnce(&mut Self::State) -> R + Send + 'a;
}