falco_event/types/time/
system_time.rs

1use crate::fields::{FromBytes, FromBytesError, ToBytes};
2use chrono::Local;
3use std::io::Write;
4use std::time::{Duration, UNIX_EPOCH};
5
6/// System time
7///
8/// Stored as nanoseconds since epoch
9#[derive(Copy, Clone, Eq, PartialEq, Hash, Ord, PartialOrd)]
10pub struct SystemTime(pub u64);
11
12impl From<std::time::SystemTime> for SystemTime {
13    /// Convert from [`std::time::SystemTime`]
14    #[inline]
15    fn from(system_time: std::time::SystemTime) -> Self {
16        Self(system_time.duration_since(UNIX_EPOCH).unwrap().as_nanos() as u64)
17    }
18}
19
20impl SystemTime {
21    /// Convert to [`std::time::SystemTime`]
22    #[inline]
23    pub fn to_system_time(&self) -> std::time::SystemTime {
24        let duration = Duration::from_nanos(self.0);
25        UNIX_EPOCH + duration
26    }
27}
28
29impl FromBytes<'_> for SystemTime {
30    #[inline]
31    fn from_bytes(buf: &mut &[u8]) -> Result<Self, FromBytesError>
32    where
33        Self: Sized,
34    {
35        let nanos = u64::from_bytes(buf)?;
36        Ok(Self(nanos))
37    }
38}
39
40impl ToBytes for SystemTime {
41    #[inline]
42    fn binary_size(&self) -> usize {
43        std::mem::size_of::<u64>()
44    }
45
46    #[inline]
47    fn write<W: Write>(&self, writer: W) -> std::io::Result<()> {
48        self.0.write(writer)
49    }
50
51    #[inline]
52    fn default_repr() -> impl ToBytes {
53        0u64
54    }
55}
56
57impl std::fmt::Debug for SystemTime {
58    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
59        let dt = chrono::DateTime::<Local>::from(self.to_system_time());
60        f.write_str(&dt.to_rfc3339_opts(chrono::SecondsFormat::AutoSi, false))
61    }
62}
falco_event/types/time/system_time.rs

falco_event/types/time/
system_time.rs
