Struct TieredBlock 

pub struct TieredBlock {
    pub cid: String,
    pub size: u64,
    pub current_tier: StorageTier,
    pub last_accessed: u64,
    pub access_count: u32,
    pub archived_at: Option<u64>,
    pub compression_ratio: Option<f64>,
}

Metadata record for a single block tracked by the cold-storage manager.

Fields

cid: String

Content identifier (CID string).

size: u64

Block size in bytes.

current_tier: StorageTier

Current tier assignment.

last_accessed: u64

Unix timestamp (seconds) of the most recent access.

access_count: u32

Total number of times the block has been accessed.

archived_at: Option<u64>

Unix timestamp (seconds) when the block was first archived (Cold or Frozen).

compression_ratio: Option<f64>

Compression ratio achieved when archiving (compressed_size / original_size). None if the block has not been compressed.

Implementations

impl TieredBlock

pub fn new(cid: impl Into<String>, size: u64, now: u64) -> Self

Construct a brand-new Hot block.

pub fn cid_checksum(&self) -> u64

Return the FNV-1a checksum of the CID bytes.

pub fn idle_secs(&self, now: u64) -> u64

Seconds elapsed since last access, given the current timestamp.

Trait Implementations

impl Clone for TieredBlock

fn clone(&self) -> TieredBlock

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TieredBlock

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

Formats the value using the given formatter.