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//! libc syscalls supporting `rustix::io_uring`.
use super::super::c;
use super::super::conv::{borrowed_fd, syscall_ret, syscall_ret_owned_fd, syscall_ret_u32};
use crate::fd::{BorrowedFd, OwnedFd};
use crate::io;
use crate::io_uring::{io_uring_params, IoringEnterFlags, IoringRegisterOp};
use linux_raw_sys::general::{__NR_io_uring_enter, __NR_io_uring_register, __NR_io_uring_setup};
#[inline]
pub(crate) fn io_uring_setup(entries: u32, params: &mut io_uring_params) -> io::Result<OwnedFd> {
unsafe {
syscall_ret_owned_fd(c::syscall(
__NR_io_uring_setup as _,
entries as usize,
params,
))
}
}
#[inline]
pub(crate) unsafe fn io_uring_register(
fd: BorrowedFd<'_>,
opcode: IoringRegisterOp,
arg: *const c::c_void,
nr_args: u32,
) -> io::Result<()> {
syscall_ret(c::syscall(
__NR_io_uring_register as _,
borrowed_fd(fd),
opcode as u32 as usize,
arg,
nr_args as usize,
))
}
#[inline]
pub(crate) unsafe fn io_uring_enter(
fd: BorrowedFd<'_>,
to_submit: u32,
min_complete: u32,
flags: IoringEnterFlags,
arg: *const c::c_void,
size: usize,
) -> io::Result<u32> {
syscall_ret_u32(c::syscall(
__NR_io_uring_enter as _,
borrowed_fd(fd),
to_submit as usize,
min_complete as usize,
flags.bits() as usize,
arg,
size,
))
}
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