Struct Entry

#[repr(C)]
pub struct Entry(/* private fields */);

A 16-byte completion queue entry (CQE), representing a complete I/O operation.

Implementations

impl Entry

pub fn result(&self) -> Result<u32, Errno>

The result of the operation. If the operation succeeded, this is the operation-specific return value. For example, for a Read operation this is equivalent to the return value of the read(2) system call. If the operation failed, the errno is returned.

pub fn raw_result(&self) -> i32

The operation-specific result code. For example, for a Read operation this is equivalent to the return value of the read(2) system call.

pub fn user_data(&self) -> io_uring_user_data

The user data of the request, as set by Entry::user_data on the submission queue event.

pub fn user_data_u64(&self) -> u64

The user data of the request, as set by Entry::user_data on the submission queue event.

pub fn user_data_ptr(&self) -> *mut c_void

The user data of the request, as set by Entry::user_data on the submission queue event.

pub fn flags(&self) -> Flags

Metadata related to the operation.

This is currently used for:

• Storing the selected buffer ID, if one was selected. See BUFFER_SELECT for more info.

Trait Implementations

impl Clone for Entry

fn clone(&self) -> Entry

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Entry

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

Formats the value using the given formatter.

impl EntryMarker for Entry

const BUILD_FLAGS: IoringSetupFlags

impl From<Entry32> for Entry

fn from(entry32: Entry32) -> Self

Converts to this type from the input type.