Struct Limits 

pub struct Limits {
    pub max_message_bytes: u32,
    pub max_payload_bytes: u32,
    pub max_records: u32,
    pub max_allocation_bytes: u32,
}

Bounded decoder policy applied before a protocol allocates or creates records.

Fields

max_message_bytes: u32

Maximum complete encoded message size.

max_payload_bytes: u32

Maximum opaque payload size after the common envelope.

max_records: u32

Maximum variable records a protocol decoder may construct.

max_allocation_bytes: u32

Maximum aggregate allocation a protocol decoder may perform.

Implementations

impl Limits

pub const fn new( max_message_bytes: u32, max_payload_bytes: u32, max_records: u32, max_allocation_bytes: u32, ) -> Self

Creates an explicit decoder policy.

Examples found in repository

examples/bounded_codec.rs (line 42)

fn main() -> Result<(), Box<dyn std::error::Error>> {
    let mut wire = [0_u8; 128];
    let written = encode_message::<CounterProtocol>(Envelope::new(1, 0, 7, 1), &42, &mut wire)?;

    let limits = Limits::new(128, 16, 1, 16);
    let decoded = decode_message::<CounterProtocol>(&wire[..written], &limits)?;

    assert_eq!(decoded.message, 42);
    assert_eq!(decoded.envelope.generation, 7);
    println!(
        "decoded counter {} from {} bounded bytes",
        decoded.message, written
    );
    Ok(())
}

Trait Implementations

impl Clone for Limits

fn clone(&self) -> Limits

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Limits

impl Debug for Limits

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

Formats the value using the given formatter.

impl Eq for Limits

impl PartialEq for Limits

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Limits