pub struct WritePipe<W: Write> { /* private fields */ }
Expand description

A virtual pipe write end.

use wasi_common::{pipe::WritePipe, WasiCtx, Table};
let stdout = WritePipe::new_in_memory();
// Brint these instances from elsewhere (e.g. wasi-cap-std-sync):
let random = todo!();
let clocks = todo!();
let sched = todo!();
let table = Table::new();
let mut ctx = WasiCtx::new(random, clocks, sched, table);
ctx.set_stdout(Box::new(stdout.clone()));
// use ctx in an instance, then make sure it is dropped:
drop(ctx);
let contents: Vec<u8> = stdout.try_into_inner().expect("sole remaining reference to WritePipe").into_inner();
println!("contents of stdout: {:?}", contents);

Implementations

Create a new pipe from a Write type.

All Handle write operations delegate to writing to this underlying writer.

Create a new pipe from a shareable Write type.

All Handle write operations delegate to writing to this underlying writer.

Try to convert this WritePipe<W> back to the underlying W type.

This will fail with Err(self) if multiple references to the underlying W exist.

Create a new writable virtual pipe backed by a Vec<u8> buffer.

Trait Implementations

Returns a copy of the value. Read more

Performs copy-assignment from source. Read more

Formats the value using the given formatter. Read more

Auto Trait Implementations

Blanket Implementations

Gets the TypeId of self. Read more

Immutably borrows from an owned value. Read more

Mutably borrows from an owned value. Read more

Returns the argument unchanged.

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

The alignment of pointer.

The type for initializers.

Initializes a with the given initializer. Read more

Dereferences the given pointer. Read more

Mutably dereferences the given pointer. Read more

Drops the object pointed to by the given pointer. Read more

Should always be Self

The resulting type after obtaining ownership.

Creates owned data from borrowed data, usually by cloning. Read more

Uses borrowed data to replace owned data, usually by cloning. Read more

The type returned in the event of a conversion error.

Performs the conversion.

The type returned in the event of a conversion error.

Performs the conversion.

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more