Struct iocb_t

#[repr(C)]
pub struct iocb_t {
    pub aio_data: u64,
    pub aio_key: u32,
    pub aio_rw_flags: rwf_t,
    pub aio_lio_opcode: u16,
    pub aio_reqprio: i16,
    pub aio_fildes: u32,
    pub aio_buf: u64,
    pub aio_nbytes: u64,
    pub aio_offset: i64,
    pub aio_reserved2: u64,
    pub aio_flags: u32,
    pub aio_resfd: u32,
}

we always use a 64bit off_t when communicating with userland. its up to libraries to do the proper padding and aio_error abstraction

Fields

aio_data: u64

these are internal to the kernel/libc. data to be returned in event’s data */

aio_key: u32

the kernel sets aio_key to the req #

aio_rw_flags: rwf_t

RWF_* flags

aio_lio_opcode: u16

common fields

aio_reqprio: i16

aio_fildes: u32

aio_buf: u64

aio_nbytes: u64

aio_offset: i64

aio_reserved2: u64

extra parameters

aio_flags: u32

flags for the struct iocb

aio_resfd: u32

If the IOCB_FLAG_RESFD flag of aio_flags is set, this is an eventfd to signal AIO readiness to

Trait Implementations

impl Clone for iocb_t

fn clone(&self) -> iocb_t

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for iocb_t

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

Formats the value using the given formatter.

impl Default for iocb_t

fn default() -> iocb_t

Returns the “default value” for a type.