Struct Iovec 

#[repr(C)]
pub struct Iovec {
    pub iov_base: *const u8,
    pub iov_len: usize,
}

POSIX struct iovec for IORING_OP_WRITEV. Matches the kernel layout (pointer + length). L1 (2026-06-21): the reactor’s reply path submits an &[Iovec] so [bulk-header, value-bytes, trailing-CRLF] fuse into ONE syscall — skipping the per-GET memcpy of the value into the per-conn output Vec.

Lifetime: the kernel reads the iovec array AND each iovec’s base slice asynchronously. The caller must keep both alive until the matching CQE fires (uring_arm_conns parks them in the conn’s pending-writes state and drops on completion).

Fields

iov_base: *const u8

Pointer to bytes.

iov_len: usize

Number of bytes at iov_base.

Trait Implementations

impl Clone for Iovec

fn clone(&self) -> Iovec

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Iovec