Struct wasmer_middlewares::metering::Metering

pub struct Metering<F: Fn(&Operator<'_>) -> u64 + Copy + Clone + Send + Sync> { /* fields omitted */ }

The module-level metering middleware.

Panic

An instance of Metering should not be shared among different modules, since it tracks module-specific information like the global index to store metering state. Attempts to use a Metering instance from multiple modules will result in a panic.

Implementations

impl<F: Fn(&Operator<'_>) -> u64 + Copy + Clone + Send + Sync> Metering<F>

pub fn new(initial_limit: u64, cost_function: F) -> Self

Creates a Metering middleware.

Trait Implementations

impl<F: Fn(&Operator<'_>) -> u64 + Copy + Clone + Send + Sync> Debug for Metering<F>

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

Formats the value using the given formatter.

impl<F: Fn(&Operator<'_>) -> u64 + Copy + Clone + Send + Sync + 'static> ModuleMiddleware for Metering<F>

fn generate_function_middleware(
    &self,
    _: LocalFunctionIndex
) -> Box<dyn FunctionMiddleware>

Generates a FunctionMiddleware for a given function.

fn transform_module_info(&self, module_info: &mut ModuleInfo)

Transforms a ModuleInfo struct in-place. This is called before application on functions begins.