Trait ProcessorExternalities

pub trait ProcessorExternalities {
    const LAZY_PAGES_ENABLED: bool;

    // Required methods
    fn new(context: ProcessorContext) -> Self;
    fn lazy_pages_init_for_program(
        mem: &mut impl Memory,
        prog_id: ProgramId,
        stack_end: Option<WasmPage>,
        globals_config: GlobalsAccessConfig,
        lazy_pages_weights: LazyPagesWeights,
    );
    fn lazy_pages_post_execution_actions(mem: &mut impl Memory);
    fn lazy_pages_status() -> Status;
}

Trait to which ext must have to work in processor wasm executor. Currently used only for lazy-pages support.

Required Associated Constants

const LAZY_PAGES_ENABLED: bool

Whether this extension works with lazy pages.

Required Methods

fn new(context: ProcessorContext) -> Self

Create new

fn lazy_pages_init_for_program( mem: &mut impl Memory, prog_id: ProgramId, stack_end: Option<WasmPage>, globals_config: GlobalsAccessConfig, lazy_pages_weights: LazyPagesWeights, )

Protect and save storage keys for pages which has no data

fn lazy_pages_post_execution_actions(mem: &mut impl Memory)

Lazy pages contract post execution actions

fn lazy_pages_status() -> Status

Returns lazy pages status

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors

impl ProcessorExternalities for Ext

Empty implementation for non-substrate (and non-lazy-pages) using

const LAZY_PAGES_ENABLED: bool = false