Struct InvokePacket 

#[repr(C)]
pub struct InvokePacket {
    pub instance_hash: CapHash,
    pub endpoint_idx: u32,
    pub _pad: u32,
    pub args: [u64; 4],
    pub initial_gas: u64,
}

Fixed-layout invocation packet. Sent as raw #[repr(C)] bytes via the existing rkyv Request envelope (its payload field). The guest reads the bytes directly with core::ptr::read_unaligned.

instance_hash keys the cap to invoke (a published Cap::Instance). endpoint_idx selects the entry within ImageCap.endpoints. args overlay φ[7..=10] on top of the endpoint’s initial_regs.

Fields

instance_hash: CapHash

endpoint_idx: u32

_pad: u32

args: [u64; 4]

initial_gas: u64

Implementations

impl InvokePacket

pub const SIZE: usize

Size of the packet in bytes — what the host writes to the Request.payload and what the guest reads back.

pub fn as_bytes(&self) -> &[u8]

Cast the packet to its raw bytes.

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

Parse a packet from raw bytes (length-checked).

Trait Implementations

impl Clone for InvokePacket

fn clone(&self) -> InvokePacket

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for InvokePacket

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

Formats the value using the given formatter.

impl PartialEq for InvokePacket

fn eq(&self, other: &InvokePacket) -> 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 Copy for InvokePacket

impl Eq for InvokePacket

impl StructuralPartialEq for InvokePacket