Struct wasi_common::WasiCtxBuilder

pub struct WasiCtxBuilder { /* private fields */ }

A builder allowing customizable construction of WasiCtx instances.

Implementations

impl WasiCtxBuilder

pub fn new() -> Result<Self, Error>

Builder for a new WasiCtx.

pub fn args<S: AsRef<str>>( self, args: impl Iterator<Item = S>, ) -> Result<Self, Error>

Add arguments to the command-line arguments list.

pub fn arg(self, arg: &str) -> Result<Self, Error>

Add an argument to the command-line arguments list.

pub fn inherit_args(self) -> Result<Self, Error>

Inherit the command-line arguments from the host process.

pub fn inherit_stdio(self) -> Result<Self, Error>

Inherit the stdin, stdout, and stderr streams from the host process.

pub fn inherit_env(self) -> Result<Self, Error>

Inherit the environment variables from the host process.

pub fn env<S: AsRef<str>>(self, k: S, v: S) -> Result<Self, Error>

Add an entry to the environment.

pub fn envs<S: AsRef<str>, T: Borrow<(S, S)>>( self, envs: impl Iterator<Item = T>, ) -> Result<Self, Error>

Add entries to the environment.

pub fn preopened_dir<P: AsRef<Path>>(self, dir: File, guest_path: P) -> Self

Add a preopened directory.

pub fn build(self) -> Result<WasiCtx, Error>

Build a WasiCtx, consuming this WasiCtxBuilder.