Struct BlockIndexEntry 

pub struct BlockIndexEntry {
    pub hash: [u8; 32],
    pub height: u32,
    pub status: u32,
    pub n_file: u32,
    pub n_data_pos: u32,
}

Represents a CDiskBlockIndex entry from Bitcoin Core.

Fields

hash: [u8; 32]

Block hash (32 bytes, Bitcoin Core internal format — little-endian)

height: u32

Block height in the chain

status: u32

Bitcoin Core status field:

• bits 0–2: validity level (0=unknown, 1=header, 2=tree, 3=transactions, 4=chain/BLOCK_VALID_CHAIN, 5=scripts/BLOCK_VALID_SCRIPTS)
• bit 3 (0x08): BLOCK_HAVE_DATA — block data is in blk*.dat
• bit 4 (0x10): BLOCK_HAVE_UNDO — undo data is in rev*.dat

n_file: u32

blk*.dat file index (0 → blk00000.dat)

n_data_pos: u32

Byte offset within the blk{n_file:05}.dat file where the block starts

Implementations

impl BlockIndexEntry

pub fn is_valid_and_available(&self) -> bool

Returns true if the block is validated in the chain and the data is available on disk.

Requires:

• Validity level ≥ 4 (BLOCK_VALID_CHAIN): bits 0–2 ≥ 4
• BLOCK_HAVE_DATA (bit 3): data present in blk*.dat

Note: using status & 0x04 would be incorrect — it would only check bit 2, which is true for any level ≥ 4 (binary …1xx), but also for level 6+ or invalid combinations. The correct way isolates the 3 validity bits with & 0x07.

pub fn validity_level(&self) -> u32

Returns the block’s validity level (bits 0–2 of status).

Trait Implementations

impl Clone for BlockIndexEntry

fn clone(&self) -> BlockIndexEntry

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for BlockIndexEntry

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

Formats the value using the given formatter.