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    fn from(system_time: std::time::SystemTime) -> Self {
14        Self(system_time.duration_since(UNIX_EPOCH).unwrap().as_nanos() as u64)
15    }
16}
17
18impl SystemTime {
19    /// Convert to [`std::time::SystemTime`]
20    pub fn to_system_time(&self) -> std::time::SystemTime {
21        let duration = Duration::from_nanos(self.0);
22        UNIX_EPOCH + duration
23    }
24}
25
26impl FromBytes<'_> for SystemTime {
27    #[inline]
28    fn from_bytes(buf: &mut &[u8]) -> Result<Self, FromBytesError>
29    where
30        Self: Sized,
31    {
32        let nanos = u64::from_bytes(buf)?;
33        Ok(Self(nanos))
34    }
35}
36
37impl ToBytes for SystemTime {
38    #[inline]
39    fn binary_size(&self) -> usize {
40        std::mem::size_of::<u64>()
41    }
42
43    #[inline]
44    fn write<W: Write>(&self, writer: W) -> std::io::Result<()> {
45        self.0.write(writer)
46    }
47
48    #[inline]
49    fn default_repr() -> impl ToBytes {
50        0u64
51    }
52}
53
54impl std::fmt::Debug for SystemTime {
55    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
56        let dt = chrono::DateTime::<Local>::from(self.to_system_time());
57        f.write_str(&dt.to_rfc3339_opts(chrono::SecondsFormat::AutoSi, false))
58    }
59}
falco_event/types/time/system_time.rs

falco_event/types/time/
system_time.rs
