Struct Runtime

pub struct Runtime { /* private fields */ }

The WASM UDF runtime.

This runtime contains an instance pool and can be shared by multiple threads.

Implementations

impl Runtime

pub fn new(binary: &[u8]) -> Result<Self>

Create a new UDF runtime from a WASM binary.

pub fn with_config(binary: &[u8], config: Config) -> Result<Self>

Create a new UDF runtime from a WASM binary with configuration.

pub fn functions(&self) -> impl Iterator<Item = &str>

Return available functions.

pub fn types(&self) -> impl Iterator<Item = (&str, &str)>

Return available types.

pub fn abi_version(&self) -> (u8, u8)

Return the ABI version.

pub fn find_function( &self, name: &str, arg_types: Vec<impl IntoField>, return_type: impl IntoField, ) -> Result<FunctionHandle>

Find a function by name, argument types and return type. The returned FunctionHandle can be used to call the function.

pub fn find_table_function( &self, name: &str, arg_types: Vec<impl IntoField>, return_type: impl IntoField, ) -> Result<TableFunctionHandle>

Find a table function by name, argument types and return type. The returned TableFunctionHandle can be used to call the table function.

pub fn call( &self, func: &FunctionHandle, input: &RecordBatch, ) -> Result<RecordBatch>

Call a function.

pub fn call_table_function<'a>( &'a self, func: &'a TableFunctionHandle, input: &'a RecordBatch, ) -> Result<impl Iterator<Item = Result<RecordBatch>> + 'a>

Call a table function.

Trait Implementations

impl Clone for Runtime

Implement Clone for Runtime so that we can simply clone to create a new runtime for the same WASM binary.

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Runtime

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

Formats the value using the given formatter.