Struct BlockFrame 

pub struct BlockFrame {
    pub block_type: u8,
    pub flags: BlockFlags,
    pub body: Vec<u8>,
}

Block frame — the wire envelope wrapping every block’s body.

┌──────────────────────────────────────────────────┐
│ block_type   (varint, 1-2 bytes typically)       │
│ block_flags  (uint8, 1 byte)                     │
│ content_len  (varint, 1-5 bytes typically)       │
│ body         [content_len bytes]                  │
└──────────────────────────────────────────────────┘

Fields

block_type: u8

The semantic block type (CODE=0x01, CONVERSATION=0x02, etc.).

flags: BlockFlags

Per-block flags.

body: Vec<u8>

The raw body bytes (content_len bytes from the wire).

Implementations

impl BlockFrame

pub fn write_to(&self, w: &mut impl Write) -> Result<usize, WireError>

Write this block frame to the provided writer.

Wire layout written:

1. block_type as varint
2. block_flags as single u8
3. body.len() as varint (content_len)
4. body bytes

Returns

Total number of bytes written.

pub fn read_from(buf: &[u8]) -> Result<Option<(Self, usize)>, WireError>

Read a block frame from the provided byte slice.

Returns

Some((frame, bytes_consumed)) for normal blocks, or None if the block type is END (0xFF), signaling the end of the block stream.

Errors

• WireError::UnexpectedEof if the slice is too short.
• WireError::VarintTooLong if a varint is malformed.

Trait Implementations

impl Clone for BlockFrame

fn clone(&self) -> BlockFrame

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for BlockFrame

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

Formats the value using the given formatter.

impl PartialEq for BlockFrame

fn eq(&self, other: &BlockFrame) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for BlockFrame

impl StructuralPartialEq for BlockFrame