Struct RetentionPolicy 

pub struct RetentionPolicy {
    pub keep_last_n: usize,
    pub keep_pinned: bool,
    pub max_total_bytes: Option<u64>,
    pub min_age_ms: u64,
}

Configures which checkpoints the CheckpointPruner should keep.

Fields

keep_last_n: usize

Always keep the N most recent checkpoints (ordered by round). Default: 5.

keep_pinned: bool

Pinned checkpoints are never deleted. Default: true.

max_total_bytes: Option<u64>

If set, prune oldest checkpoints until the total size is at or below this threshold (bytes). Pinned checkpoints count toward the budget but are never deleted because of it (they can only be deleted when keep_pinned is false).

min_age_ms: u64

Never prune checkpoints whose age (now_ms − created_at_ms) is less than this value. Default: 0 (no minimum age restriction).

Trait Implementations

impl Clone for RetentionPolicy

fn clone(&self) -> RetentionPolicy

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for RetentionPolicy

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

Formats the value using the given formatter.

impl Default for RetentionPolicy

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for RetentionPolicy

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for RetentionPolicy

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.