Struct DnsblCache

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pub struct DnsblCache { /* private fields */ }

Expand description

cached DNSBL lookup to avoid repeated queries for known IPs caches both positive (listed) and negative (clean) results

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impl DnsblCache

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pub fn new(ttl: Duration) -> Self

Construct an empty cache with the given per-entry TTL.

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pub async fn check( &self, resolver: &TokioResolver, ip: IpAddr, zones: &[String], ) -> Option<(String, DnsblResult)>

check with cache: return cached result if fresh, otherwise query DNS

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pub fn cleanup(&self)

remove expired entries

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pub fn len(&self) -> usize

number of cached entries (for testing)

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pub fn is_empty(&self) -> bool

check if cache is empty

Auto Trait Implementations§

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impl UnwindSafe for DnsblCache

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