Struct BlockHeader 

pub struct BlockHeader {
    pub id: String,
    pub reserved: u32,
    pub length: u64,
    pub link_count: u64,
}

Fields

id: String

4-byte block type identifier (e.g., “##HD”, “##DG”).

reserved: u32

Reserved field, always 0.

length: u64

Total length of the block in bytes, including this header.

link_count: u64

Number of link fields in this block.

Implementations

impl BlockHeader

pub fn to_bytes(&self) -> Result<Vec<u8>>

Serializes the BlockHeader to bytes according to MDF 4.1 specification.

The BlockHeader is always 24 bytes and consists of:

• id: 4 bytes (ASCII characters, must be exactly 4 bytes)
• reserved: 4 bytes (always 0)
• length: 8 bytes (total length of the block including this header)
• link_count: 8 bytes (number of links in this block)

Returns

• Ok(Vec<u8>) containing the serialized block header
• Err(Error) if serialization fails

pub fn from_bytes(bytes: &[u8]) -> Result<Self>

Parse a block header from the first 24 bytes of bytes.

Arguments

• bytes - Slice containing at least 24 bytes from the MDF file.

Returns

A BlockHeader on success or Error::TooShortBuffer when the slice is smaller than 24 bytes.

Trait Implementations

impl Clone for BlockHeader

fn clone(&self) -> BlockHeader

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for BlockHeader

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

Formats the value using the given formatter.

impl Default for BlockHeader

fn default() -> Self

Returns a BlockHeader with id ‘UNSET’ and length 0 as a placeholder. This is not a valid MDF block header and should be replaced before writing.

impl<'de> Deserialize<'de> for BlockHeader

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for BlockHeader

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

where __S: Serializer,

Serialize this value into the given Serde serializer.