Struct wasmedge_sdk::wasi::async::WasiContext

pub struct WasiContext { /* private fields */ }

Available on crate feature async and Linux only.

Represents a wasi context for the async scenarios.

Implementations

impl WasiContext

pub fn new( args: Option<Vec<&str>>, envs: Option<Vec<(&str, &str)>>, preopens: Option<Vec<(&str, &str)>> ) -> Self

Creates a wasi context with the specified argumentes, environment variables, and preopened directories.

Arguments

• args - The commandline arguments. The first argument is the program name.

• envs - The environment variables to use.

• preopens - The directories to pre-open. The first element of the pair is the host directory, while the second is the guest directory.

pub fn generate<S: Into<String>>( args: Option<Vec<S>>, envs: Option<Vec<(S, S)>>, preopens: Option<Vec<(S, S)>> ) -> Self

Creates a wasi context with the specified argumentes, environment variables, and preopened directories.

Arguments

• args - The commandline arguments. The first argument is the program name.

• envs - The environment variables to use.

• preopens - The directories to pre-open. The first element of the pair is the host directory, while the second is the guest directory.

pub fn exit_code(&self) -> u32

Returns the WASI exit code.

The WASI exit code can be accessed after running the “_start” function of a wasm32-wasi program.

Trait Implementations

impl Debug for WasiContext

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

Formats the value using the given formatter.

impl Default for WasiContext

fn default() -> Self

Returns the “default value” for a type.