hermit/
time.rs

1use crate::arch;
2
3#[allow(non_camel_case_types)]
4pub type time_t = i64;
5#[allow(non_camel_case_types)]
6pub type useconds_t = u32;
7#[allow(non_camel_case_types)]
8pub type suseconds_t = i32;
9
10/// Represent the number of seconds and microseconds since
11/// the Epoch (1970-01-01 00:00:00 +0000 (UTC))
12#[derive(Copy, Clone, Debug)]
13#[repr(C)]
14pub struct timeval {
15	/// seconds
16	pub tv_sec: time_t,
17	/// microseconds
18	pub tv_usec: suseconds_t,
19}
20
21impl timeval {
22	pub fn from_usec(microseconds: i64) -> Self {
23		Self {
24			tv_sec: (microseconds / 1_000_000),
25			tv_usec: (microseconds % 1_000_000) as i32,
26		}
27	}
28
29	pub fn into_usec(&self) -> Option<i64> {
30		self.tv_sec
31			.checked_mul(1_000_000)
32			.and_then(|usec| usec.checked_add(self.tv_usec.into()))
33	}
34}
35
36#[derive(Copy, Clone, Debug)]
37#[repr(C)]
38pub struct itimerval {
39	pub it_interval: timeval,
40	pub it_value: timeval,
41}
42
43/// Represent the number of seconds and nanoseconds since
44/// the Epoch (1970-01-01 00:00:00 +0000 (UTC))
45#[derive(Copy, Clone, Debug, Default)]
46#[repr(C)]
47pub struct timespec {
48	/// seconds
49	pub tv_sec: time_t,
50	/// nanoseconds
51	pub tv_nsec: i32,
52}
53
54impl timespec {
55	pub fn from_usec(microseconds: i64) -> Self {
56		Self {
57			tv_sec: (microseconds / 1_000_000),
58			tv_nsec: ((microseconds % 1_000_000) * 1000) as i32,
59		}
60	}
61
62	pub fn into_usec(&self) -> Option<i64> {
63		self.tv_sec
64			.checked_mul(1_000_000)
65			.and_then(|usec| usec.checked_add((self.tv_nsec / 1000).into()))
66	}
67}
68
69#[derive(Copy, Clone, Debug, Default)]
70pub struct SystemTime(timespec);
71
72impl SystemTime {
73	/// Returns the system time corresponding to "now".
74	pub fn now() -> Self {
75		Self(timespec::from_usec(
76			arch::kernel::systemtime::now_micros() as i64
77		))
78	}
79}
80
81impl From<timespec> for SystemTime {
82	fn from(t: timespec) -> Self {
83		Self(t)
84	}
85}
86
87impl From<SystemTime> for timespec {
88	fn from(value: SystemTime) -> Self {
89		value.0
90	}
91}
hermit/time.rs

hermit/
time.rs
