1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
// This file is part of linux-support. It is subject to the license terms in the COPYRIGHT file found in the top-level directory of this distribution and at https://raw.githubusercontent.com/lemonrock/linux-support/master/COPYRIGHT. No part of linux-support, including this file, may be copied, modified, propagated, or distributed except according to the terms contained in the COPYRIGHT file.
// Copyright © 2020 The developers of linux-support. See the COPYRIGHT file in the top-level directory of this distribution and at https://raw.githubusercontent.com/lemonrock/linux-support/master/COPYRIGHT.
#[repr(C)]
pub(super) struct nlmsgerr
{
/// Standard `E*` error code, eg `EINVAL`.
///
/// Is zero if this structure represents an acknowledgment.
pub(super) error: c_int,
/// Original (request) netlink message header.
pub(super) msg: nlmsghdr,
// Variable number of attributes of type `nlmsgerr_attrs` forms the payload of the `msg` field above *if* `error` is zero.
}
impl nlmsgerr
{
#[inline(always)]
pub fn error_or_acknowledgment_io_result(&self) -> Result<(), Errno>
{
if likely!(self.error > 0 && self.error < 4096)
{
Err(Errno(self.error))
}
else if likely!(self.error == 0)
{
Ok(())
}
else
{
unreachable_code(format_args!("error field is either negative or greater than 4095: {}", self.error))
}
}
#[inline(always)]
pub fn over_run_io_result(&self) -> Errno
{
if likely!(self.error > 0 && self.error < 4096)
{
Errno(self.error)
}
else
{
unreachable_code(format_args!("error field is either negative or greater than 4095: {}", self.error))
}
}
}