Crate sc_executor_wasmtime

Defines a WasmRuntime that uses the Wasmtime JIT to execute.

You can choose a profiling strategy at runtime with environment variable WASMTIME_PROFILING_STRATEGY:

WASMTIME_PROFILING_STRATEGY	Effect
undefined	No profiling
"jitdump"	jitdump profiling
other value	No profiling (warning)

Structs

Config

DeterministicStackLimit

Knobs for deterministic stack height limiting.

Semantics

Enums

InstantiationStrategy

The instantiation strategy to use for the WASM executor.

Functions

create_runtime

Create a new WasmtimeRuntime given the code. This function performs translation from Wasm to machine code, which can be computationally heavy.

create_runtime_from_artifact^⚠

The same as create_runtime but takes a path to a precompiled artifact, which makes this function considerably faster than create_runtime.

prepare_runtime_artifact

Takes a RuntimeBlob and precompiles it returning the serialized result of compilation. It can then be used for calling create_runtime avoiding long compilation times.