Struct FileIo 

pub struct FileIo<B> { /* private fields */ }

A pending file operation submitted through AssociatedEndpoint::read or AssociatedEndpoint::write.

The token carries the operation’s identity and remembers the buffer type it was submitted with, so FileIo::claim hands back the caller’s own buffer – the same value, not a copy – once the matching completion is dequeued.

Implementations

impl<B: IoBuf> FileIo<B>

pub fn id(&self) -> OperationId

The identity of the in-flight operation, for cancellation or matching.

pub fn claim(self, completion: &Completion) -> Result<(B, Result<usize>), Self>

Claim this operation’s result from completion.

On a match returns Ok((buffer, result)): buffer is the one the caller handed over – the bytes read, or the data written – and result is the byte count or the operation’s error. Returns Err(self) when completion belongs to a different operation, so the caller can try the token against another one.

Trait Implementations

impl<B: Debug> Debug for FileIo<B>

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

Formats the value using the given formatter.