chanlun 26.6.4

/*
 * MIT License
 *
 * Copyright (c) 2026 YuYuKunKun
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

use std::sync::atomic::{AtomicU64, Ordering};

/// f64 原子类型 — 基于 AtomicU64 + 位转换，API 与 `Cell<f64>` 一致。
#[derive(Debug, Default)]
/// 线程安全的 f64 原子容器
pub struct SyncF64(AtomicU64);

impl SyncF64 {
    /// 创建 SyncF64
    pub fn new(v: f64) -> Self {
        Self(AtomicU64::new(v.to_bits()))
    }

    /// 原子读取 f64 值
    pub fn get(&self) -> f64 {
        f64::from_bits(self.0.load(Ordering::Relaxed))
    }

    /// 原子写入 f64 值
    pub fn set(&self, v: f64) {
        self.0.store(v.to_bits(), Ordering::Relaxed);
    }
}

impl Clone for SyncF64 {
    fn clone(&self) -> Self {
        Self(AtomicU64::new(self.0.load(Ordering::Relaxed)))
    }
}