Struct qiniu_http_client::CAresResolver

pub struct CAresResolver(_);

Available on crate feature c_ares only.

c-ares 域名解析器

基于 c-ares 库的域名解析接口实现

Implementations

impl CAresResolver

pub fn new_with_options(
    sync_options: CAresResolverOptions,
    async_options: CAresResolverOptions
) -> Result<Self, CAresResolverError>

创建 c-ares 域名解析器

Examples found in repository

src/client/resolver/c_ares_impl.rs (line 72)

    pub fn new() -> CAresResolverResult<Self> {
        cfg_if! {
            if #[cfg(any(feature = "async"))] {
                Self::new_with_options(CAresResolverOptions::new(), CAresResolverOptions::new())
            } else {
                Self::new_with_options(CAresResolverOptions::new())
            }
        }
    }

pub fn new() -> Result<Self, CAresResolverError>

创建默认的 c-ares 域名解析器

Examples found in repository

src/client/http_client.rs (line 672)

    pub fn default_resolver() -> Box<dyn Resolver> {
        let chained_resolver = {
            let base_resolver = Box::<TimeoutResolver<SimpleResolver>>::default();

            #[allow(unused_mut)]
            let mut builder = ChainedResolver::builder(base_resolver);

            #[cfg(feature = "c_ares")]
            if let Ok(resolver) = super::CAresResolver::new() {
                builder.prepend_resolver(Box::new(resolver));
            }

            #[cfg(all(feature = "trust_dns", feature = "async"))]
            if let Ok(resolver) = async_std::task::block_on(async { super::TrustDnsResolver::from_system_conf().await })
            {
                builder.prepend_resolver(Box::new(resolver));
            }

            builder.build()
        };
        let cached_resolver = CachedResolver::builder(chained_resolver).in_memory();
        let shuffled_resolver = ShuffledResolver::new(cached_resolver);
        Box::new(shuffled_resolver)
    }

Trait Implementations

impl Clone for CAresResolver

fn clone(&self) -> CAresResolver

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for CAresResolver

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Resolver for CAresResolver

fn resolve(&self, domain: &str, opts: ResolveOptions<'_>) -> ResolveResult

解析域名

fn async_resolve<'a>(
    &'a self,
    domain: &'a str,
    opts: ResolveOptions<'a>
) -> BoxFuture<'a, ResolveResult>

Available on crate feature async only.

异步解析域名