Struct Engine 

pub struct Engine { /* private fields */ }

Process-wide Wasmtime engine. Reuse it across runs.

A background thread ticks the engine epoch about once a millisecond. Each run sets a one-tick deadline and decides, on that tick, whether to keep going, time out, or die because its KillHandle was fired.

Implementations

impl Engine

pub fn new() -> Result<Self, Error>

pub fn kill_handle(&self) -> KillHandle

A kill switch bound to this engine. Clone it into another thread.

impl Engine

pub fn execute(&self, request: RunRequest) -> Result<Report, Error>

Run a module. Timeout still applies. Nothing is killed unless the process is torn down.

pub fn execute_with( &self, request: RunRequest, kill: &KillHandle, ) -> Result<Report, Error>

Run a module. KillHandle::kill from another thread stops this run and leaves other runs on this engine alone.

pub fn execute_with_preflight( &self, request: RunRequest, kill: &KillHandle, preflight: &dyn Preflight, ) -> Result<Report, Error>

Like Self::execute_with, but asks preflight before instantiation. Keywarden (or any policy) can deny the run without starting the guest.

Trait Implementations

impl Clone for Engine

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.