Struct governance_os_node::executor::NativeExecutor

pub struct NativeExecutor<D> {
    _dummy: PhantomData<D>,
    native_version: NativeVersion,
    wasm: WasmExecutor,
}

A generic CodeExecutor implementation that uses a delegate to determine wasm code equivalence and dispatch to native code when possible, falling back on WasmExecutor when not.

Fields

_dummy: PhantomData<D>

Dummy field to avoid the compiler complaining about us not using D.

native_version: NativeVersion

Native runtime version info.

wasm: WasmExecutor

Fallback wasm executor.

Implementations

impl<D> NativeExecutor<D> where
    D: NativeExecutionDispatch, 

pub fn new(
    fallback_method: WasmExecutionMethod,
    default_heap_pages: Option<u64>,
    max_runtime_instances: usize
) -> NativeExecutor<D>

Create new instance.

Parameters

fallback_method - Method used to execute fallback Wasm code.

default_heap_pages - Number of 64KB pages to allocate for Wasm execution. Defaults to DEFAULT_HEAP_PAGES if None is provided.

Trait Implementations

impl<D> CallInWasm for NativeExecutor<D> where
    D: NativeExecutionDispatch, 

pub fn call_in_wasm(
    &self,
    wasm_blob: &[u8],
    code_hash: Option<Vec<u8, Global>>,
    method: &str,
    call_data: &[u8],
    ext: &mut dyn Externalities,
    missing_host_functions: MissingHostFunctions
) -> Result<Vec<u8, Global>, String>

Call the given method in the given wasm_blob using call_data (SCALE encoded arguments) to decode the arguments for the method.

impl<D> Clone for NativeExecutor<D> where
    D: NativeExecutionDispatch, 

pub fn clone(&self) -> NativeExecutor<D>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<D> CodeExecutor for NativeExecutor<D> where
    D: 'static + NativeExecutionDispatch, 

type Error = Error

Externalities error type.

pub fn call<R, NC>(
    &self,
    ext: &mut dyn Externalities,
    runtime_code: &RuntimeCode<'_>,
    method: &str,
    data: &[u8],
    use_native: bool,
    native_call: Option<NC>
) -> (Result<NativeOrEncoded<R>, Error>, bool) where
    R: Decode + Encode + PartialEq<R>,
    NC: FnOnce() -> Result<R, String> + UnwindSafe, 

Call a given method in the runtime. Returns a tuple of the result (either the output data or an execution error) together with a bool, which is true if native execution was used.

impl<D> RuntimeInfo for NativeExecutor<D> where
    D: NativeExecutionDispatch, 

pub fn native_version(&self) -> &NativeVersion

Native runtime information.

pub fn runtime_version(
    &self,
    ext: &mut dyn Externalities,
    runtime_code: &RuntimeCode<'_>
) -> Result<RuntimeVersion, Error>

Extract RuntimeVersion of the given runtime_code.