1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
|
use std::fmt;
use std::time::{Duration, SystemTime};
/// Contains bytes sent and received through a tunnel
#[derive(Default, PartialEq, Eq, Clone, Copy)]
pub struct Stats {
pub tx_bytes: u64,
pub rx_bytes: u64,
pub last_handshake_time: Option<SystemTime>,
}
impl fmt::Debug for Stats {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
let stats = StatsDebug {
now: SystemTime::now(),
stats: self,
};
fmt::Debug::fmt(&stats, f)
}
}
struct StatsDebug<'a> {
pub now: SystemTime,
pub stats: &'a Stats,
}
impl fmt::Debug for StatsDebug<'_> {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
let mut dbg = f.debug_struct("Stats");
dbg.field("tx_bytes", &self.stats.tx_bytes)
.field("rx_bytes", &self.stats.rx_bytes);
if let Some(last_handshake) = self.stats.last_handshake_time {
let time_since_handshake = self
.now
.duration_since(last_handshake)
.unwrap_or(Duration::ZERO);
dbg.field(
"last_handshake",
&format_args!("\"{} ms ago\"", time_since_handshake.as_millis()),
);
} else {
dbg.field("last_handshake", &"no handshake");
}
dbg.finish()
}
}
/// A map from peer pubkeys to peer stats.
pub type StatsMap = std::collections::HashMap<[u8; 32], Stats>;
#[cfg(test)]
mod test {
use super::*;
#[test]
fn test_stats_debug() {
let now = SystemTime::UNIX_EPOCH + Duration::from_secs(60);
let stats = Stats {
tx_bytes: 100,
rx_bytes: 100,
last_handshake_time: Some(SystemTime::UNIX_EPOCH),
};
insta::assert_debug_snapshot!(StatsDebug { now, stats: &stats });
}
}
|
