multiboot2 0.24.1

Convenient and safe parsing of Multiboot2 Boot Information (MBI) structures and the contained information tags. Usable in `no_std` environments, such as a kernel. An optional builder feature also allows the construction of the corresponding structures.
Documentation 
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

//! Module for [`EndTag`].

use crate::{TagHeader, TagType};
use core::mem;
use multiboot2_common::{MaybeDynSized, Tag};

/// The end tag ends the information struct.
#[derive(Debug)]
#[repr(C, align(8))]
pub struct EndTag {
    header: TagHeader,
}

impl Default for EndTag {
    fn default() -> Self {
        Self {
            header: TagHeader::new(Self::ID, mem::size_of::<Self>() as u32),
        }
    }
}

impl MaybeDynSized for EndTag {
    type Header = TagHeader;

    const BASE_SIZE: usize = mem::size_of::<Self>();

    fn dst_len(_: &TagHeader) {}
}

impl Tag for EndTag {
    type IDType = TagType;

    const ID: TagType = TagType::End;
}

#[cfg(test)]
mod tests {
    use super::*;

    #[test]
    /// Compile time test for [`EndTag`].
    fn test_end_tag_size() {
        unsafe {
            core::mem::transmute::<[u8; 8], EndTag>([0u8; 8]);
        }
    }
}