Struct ProviderReannouncer 

pub struct ProviderReannouncer { /* private fields */ }

Tracks which CIDs this node provides and when they were last announced.

DHT provider records expire after 24 hours. ProviderReannouncer keeps track of the last announcement time for every CID so the caller can periodically re-announce before expiry.

Implementations

impl ProviderReannouncer

pub fn new(reannounce_interval: Duration) -> Self

Create a new reannouncer with the given interval.

pub fn with_max_per_cycle( reannounce_interval: Duration, max_per_cycle: usize, ) -> Self

Create a new reannouncer with a custom max-per-cycle cap.

pub fn record_provide(&mut self, cid: &str)

Record that we started providing cid. Calling this again for an existing CID resets its timer (treat as fresh announcement).

pub fn due_for_reannouncement(&self) -> Vec<String>

Return CIDs whose last announcement is older than reannounce_interval.

At most max_per_cycle entries are returned to avoid flooding the network in a single cycle.

pub fn mark_reannounced(&mut self, cids: &[String])

Mark a set of CIDs as re-announced, resetting their timestamps.

pub fn remove(&mut self, cid: &str)

Stop tracking cid (we no longer provide it).

pub fn count(&self) -> usize

Number of CIDs currently tracked.

pub fn stats(&self) -> ReannounceStats

Return summary statistics about the tracked CIDs.