Struct wasmtime_wasi::I32Exit

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pub struct I32Exit(pub i32);
Expand description

An error returned from the proc_exit host syscall.

Embedders can test if an error returned from wasm is this error, in which case it may signal a non-fatal trap.

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§0: i32

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impl I32Exit

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pub fn process_exit_code(&self) -> i32

Accessor for an exit code appropriate for calling std::process::exit with, when interpreting this I32Exit as an exit for the parent process.

This method masks off exit codes which are illegal on Windows.

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impl Debug for I32Exit

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

Formats the value using the given formatter. Read more
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impl Display for I32Exit

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

Formats the value using the given formatter. Read more
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impl Error for I32Exit

1.30.0 · source§

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any. Read more
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fn description(&self) -> &str

👎Deprecated since 1.42.0: use the Display impl or to_string()
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fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0: replaced by Error::source, which can support downcasting
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fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)
Provides type-based access to context intended for error reports. Read more

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impl<T> GetSetFdFlags for T

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fn get_fd_flags(&self) -> Result<FdFlags, Error>
where T: AsFilelike,

Query the “status” flags for the self file descriptor.
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fn new_set_fd_flags(&self, fd_flags: FdFlags) -> Result<SetFdFlags<T>, Error>
where T: AsFilelike,

Create a new SetFdFlags value for use with set_fd_flags. Read more
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Set the “status” flags for the self file descriptor. Read more
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const ALIGN: usize = _

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