wasm

Documentation

Index

• Constants
• func NewRuntime(ctx context.Context, cfg wazero.RuntimeConfig) (wazero.Runtime, error)
• func Run(ctx context.Context, runtime wazero.Runtime, module wazero.CompiledModule, ...) (rc uint32, err error)
• type Args

Constants

const CoreFeatures = api.CoreFeatureSIMD |
	api.CoreFeatureBulkMemoryOperations |
	api.CoreFeatureNonTrappingFloatToIntConversion |
	api.CoreFeatureMutableGlobal |
	api.CoreFeatureReferenceTypes |
	api.CoreFeatureSignExtensionOps

CoreFeatures are the WebAssembly Core specification features our embedded binaries are compiled with.

Functions

func NewRuntime

func NewRuntime(ctx context.Context, cfg wazero.RuntimeConfig) (wazero.Runtime, error)

NewRuntime returns a new WebAssembly wazero.Runtime compatible with go-ffmpreg.

func Run

func Run(
	ctx context.Context,
	runtime wazero.Runtime,
	module wazero.CompiledModule,
	args Args,
) (rc uint32, err error)

Run will run given compiled WebAssembly module within the given runtime, with given arguments. Returns the exit code, or error.

Types

type Args

type Args struct {

	// Program name, depending on the
	// module being run this may or may
	// not be necessary.
	Name string

	// Optional further module configuration function.
	// (e.g. to mount filesystem dir, set env vars, etc).
	Config func(wazero.ModuleConfig) wazero.ModuleConfig

	// Standard FDs.
	Stdin  io.Reader
	Stdout io.Writer
	Stderr io.Writer

	// CLI args.
	Args []string
}

Args encompasses a common set of configuration options often passed to wazero.Runtime on module instantiation.