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use crate::sync;
use core::cmp;
use core::fmt;
#[derive(Copy, Clone, PartialEq, Eq)]
pub struct Version {
pub major: u8,
pub minor: u8,
pub micro: u8
}
impl Version {
pub const fn empty() -> Self {
Self { major: 0, minor: 0, micro: 0 }
}
pub const fn new(major: u8, minor: u8, micro: u8) -> Self {
Self { major, minor, micro }
}
}
impl Ord for Version {
fn cmp(&self, other: &Self) -> cmp::Ordering {
if self.major < other.major {
cmp::Ordering::Less
}
else if self.major == other.major {
if self.minor < other.minor {
cmp::Ordering::Less
}
else if self.minor == other.minor {
if self.micro < other.micro {
cmp::Ordering::Less
}
else {
cmp::Ordering::Equal
}
}
else {
cmp::Ordering::Greater
}
}
else {
cmp::Ordering::Greater
}
}
}
impl PartialOrd for Version {
fn partial_cmp(&self, other: &Self) -> Option<cmp::Ordering> {
Some(self.cmp(other))
}
}
impl fmt::Display for Version {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
write!(f, "{}.{}.{}", self.major, self.minor, self.micro)
}
}
pub struct VersionInterval {
min: Option<Version>,
max: Option<Version>
}
impl VersionInterval {
pub const fn all() -> Self {
Self {
min: None,
max: None
}
}
pub const fn from(min: Version) -> Self {
Self {
min: Some(min),
max: None
}
}
pub const fn to(max: Version) -> Self {
Self {
min: None,
max: Some(max)
}
}
pub const fn from_to(min: Version, max: Version) -> Self {
Self {
min: Some(min),
max: Some(max)
}
}
pub fn matches(&self, ver: Version) -> bool {
if let Some(min_v) = self.min {
if ver < min_v {
return false;
}
}
if let Some(max_v) = self.max {
if ver > max_v {
return false;
}
}
true
}
}
static mut G_VERSION: sync::Locked<Version> = sync::Locked::new(false, Version::empty());
pub fn set_version(version: Version) {
unsafe {
G_VERSION.set(version);
}
}
pub fn get_version() -> Version {
unsafe {
*G_VERSION.get()
}
}