btrfs-no-std 0.2.1

Fork of Christopher Tam's `btrfs-diskformat` with `#![no_std]` support
Documentation 
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use {
    byteorder::LE,
    static_assertions::const_assert_eq,
    zerocopy::{AsBytes, FromBytes, Unaligned, I64, U32},
};

/// The layout of timestamps on disk.
#[derive(Copy, Clone, Debug, AsBytes, FromBytes, Unaligned)]
#[repr(C, packed)]
pub struct Time {
    /// The timestamp using Unix time convention.
    pub timestamp: I64<LE>,

    /// The number of nanoseconds past the beginning of the second denoted in [timestamp].
    ///
    /// [timestamp]: Time::timestamp
    pub nanoseconds: U32<LE>,
}
const_assert_eq!(core::mem::size_of::<Time>(), 12);