Struct IoUring

pub struct IoUring { /* private fields */ }

IoUring instance

Implementations

impl IoUring

pub fn new(entries: u32) -> Result<IoUring>

Create a IoUring instance

The entries sets the size of queue, and it value should be the power of two.

pub fn params(&self) -> &Parameters

pub unsafe fn register(&self, target: Target<'_>) -> Result<()>

Register files or user buffers for asynchronous I/O.

pub fn unregister(&self, target: Target) -> Result<()>

Unregister files or user buffers for asynchronous I/O.

pub unsafe fn enter( &self, to_submit: u32, min_complete: u32, flag: u32, sig: Option<&sigset_t>, ) -> Result<usize>

Initiate and/or complete asynchronous I/O

Safety

This provides a raw interface so developer must ensure that parameters are correct.

pub fn submit(&self) -> Result<usize>

Initiate asynchronous I/O.

pub fn submit_and_wait(&self, want: usize) -> Result<usize>

Initiate and/or complete asynchronous I/O

pub fn split( &mut self, ) -> (Submitter<'_>, &mut SubmissionQueue, &mut CompletionQueue)

Get submitter and submission queue and completion queue

pub fn submission(&mut self) -> &mut SubmissionQueue

Get submission queue

pub fn completion(&mut self) -> &mut CompletionQueue

Get completion queue

Trait Implementations

impl AsRawFd for IoUring

fn as_raw_fd(&self) -> RawFd

Extracts the raw file descriptor.

impl Drop for IoUring

fn drop(&mut self)

Executes the destructor for this type.

impl Send for IoUring

impl Sync for IoUring