Struct TorrentMetaV2 

pub struct TorrentMetaV2 {
    pub info_hashes: InfoHashes,
    pub info_bytes: Option<Bytes>,
    pub announce: Option<String>,
    pub announce_list: Option<Vec<Vec<String>>>,
    pub comment: Option<String>,
    pub created_by: Option<String>,
    pub creation_date: Option<i64>,
    pub info: InfoDictV2,
    pub piece_layers: BTreeMap<Id32, Vec<u8>>,
    pub ssl_cert: Option<Vec<u8>>,
}

Parsed v2 .torrent file (BEP 52).

Fields

info_hashes: InfoHashes

Unified info hashes (v2 SHA-256, optionally truncated v1 for compat).

info_bytes: Option<Bytes>

Raw info dict bytes for BEP 9 metadata serving.

announce: Option<String>

Primary announce URL.

announce_list: Option<Vec<Vec<String>>>

Announce list (BEP 12).

comment: Option<String>

Comment.

created_by: Option<String>

Created by.

creation_date: Option<i64>

Creation date (unix timestamp).

info: InfoDictV2

v2 info dictionary.

piece_layers: BTreeMap<Id32, Vec<u8>>

Piece layers: pieces_root → concatenated SHA-256 hashes.

Each entry maps a file’s Merkle root to the concatenated piece-level hashes. Only present for files larger than piece_length.

ssl_cert: Option<Vec<u8>>

PEM-encoded SSL CA certificate from the info dict, if present.

Implementations

impl TorrentMetaV2

pub fn validate_piece_layers(&self) -> Result<(), Error>

Validate that piece layers match the file tree.

Each file larger than piece_length must have a corresponding piece layer with the correct number of hashes.

Errors

Returns an error if a file is missing its piece layer or has the wrong hash count.

pub fn file_piece_hashes(&self, pieces_root: &Id32) -> Option<Vec<Id32>>

Get piece hashes for a file by its Merkle root.

pub fn piece_layer_for_file(&self, file_index: usize) -> Option<Vec<Id32>>

Access piece layer by file index (libtorrent parity).

pub fn take_piece_layers(&mut self) -> BTreeMap<Id32, Vec<u8>>

Take and clear piece layers (memory optimization, libtorrent parity).

Returns the layers and clears them from the struct. Useful after verification is complete to free memory.

Trait Implementations

impl Clone for TorrentMetaV2

fn clone(&self) -> TorrentMetaV2

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TorrentMetaV2

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

Formats the value using the given formatter.

impl From<TorrentMetaV2> for TorrentMeta

fn from(meta: TorrentMetaV2) -> Self

Converts to this type from the input type.