netwatcher

netwatcher 是一个跨平台Rust库，用于枚举网络接口及其IP地址，具有高效监视这些接口变化的特性。它使用平台特定的方法来检测接口变化，而不是轮询，这意味着您可以更快地发现变化，并且在没有任何活动时没有CPU或唤醒开销。

当前平台支持

用法

列出接口

/// Returns a HashMap from ifindex (a `u32`) to an `Interface` struct
let interfaces = netwatcher::list_interfaces().unwrap();
for i in interfaces.values() {
    println!("interface {} has {} IPs", i.name, i.ips.len());
}

监视接口变化

let handle = netwatcher::watch_interfaces(|update| {
    // This callback will fire once immediately with the existing state

    // Update includes the latest snapshot of all interfaces
    println!("Current interface map: {:#?}", update.interfaces);

    // The `UpdateDiff` describes changes since previous callback
    // You can choose whether to use the snapshot, diff, or both
    println!("ifindexes added: {:?}", update.diff.added);
    println!("ifindexes removed: {:?}", update.diff.removed);
    for (ifindex, if_diff) in update.diff.modified {
        println!("Interface index {} has changed", ifindex);
        println!("Added IPs: {:?}", if_diff.addrs_added);
        println!("Removed IPs: {:?}", if_diff.addrs_removed);
    }
});
// keep `handle` alive as long as you want callbacks
// ...
drop(handle);

许可证

Apache许可证版本2.0 - 请参阅 LICENSE。