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#![no_std]
#![doc = include_str!("../README.md")]

use core::sync::atomic::AtomicU32;

#[cfg(any(target_os = "linux", target_os = "android"))]
#[path = "linux.rs"]
mod platform;

#[cfg(any(target_os = "macos", target_os = "ios", target_os = "watchos"))]
#[path = "macos.rs"]
mod platform;

#[cfg(windows)]
#[path = "windows.rs"]
mod platform;

#[cfg(target_os = "freebsd")]
#[path = "freebsd.rs"]
mod platform;

/// If the value is `value`, wait until woken up.
///
/// This function might also return spuriously,
/// without a corresponding wake operation.
#[inline]
pub fn wait(atomic: &AtomicU32, value: u32) {
    platform::wait(atomic, value)
}

/// Wake one thread that is waiting on this atomic.
///
/// It's okay if the pointer dangles or is null.
#[inline]
pub fn wake_one(atomic: *const AtomicU32) {
    platform::wake_one(atomic);
}

/// Wake all threads that are waiting on this atomic.
///
/// It's okay if the pointer dangles or is null.
#[inline]
pub fn wake_all(atomic: *const AtomicU32) {
    platform::wake_all(atomic);
}