Struct wasi_common::WasiCtxBuilder

pub struct WasiCtxBuilder { /* fields omitted */ }

A builder allowing customizable construction of WasiCtx instances.

Methods

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 stdin(self, file: File) -> Result<Self, Error>

Provide a File to use as stdin

pub fn stdout(self, file: File) -> Result<Self, Error>

Provide a File to use as stdout

pub fn stderr(self, file: File) -> Result<Self, Error>

Provide a File to use as stderr

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.