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
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
use std::sync::atomic::{AtomicU64, Ordering};
use crate::packet::DropReason;
#[derive(Default)]
pub struct Stats {
pub tun_read_packets: AtomicU64,
pub tun_write_packets: AtomicU64,
pub datagrams_sent: AtomicU64,
pub datagrams_received: AtomicU64,
pub bytes_sent: AtomicU64,
pub bytes_received: AtomicU64,
pub dropped_queue_full: AtomicU64,
pub dropped_no_connection: AtomicU64,
pub dropped_too_large: AtomicU64,
pub dropped_send_failed: AtomicU64,
pub dropped_tun_write_failed: AtomicU64,
pub connections_dialed: AtomicU64,
pub connections_accepted: AtomicU64,
pub connections_refused: AtomicU64,
pub dial_failures: AtomicU64,
pub route_sync_failures: AtomicU64,
pub node_list_updates: AtomicU64,
dropped_by_reason: [AtomicU64; DropReason::ALL.len()],
}
impl Stats {
pub fn add(counter: &AtomicU64, n: u64) {
counter.fetch_add(n, Ordering::Relaxed);
}
pub fn bump(counter: &AtomicU64) {
counter.fetch_add(1, Ordering::Relaxed);
}
pub fn dropped(&self, reason: DropReason) {
Stats::bump(&self.dropped_by_reason[reason.index()]);
}
pub fn dropped_count(&self, reason: DropReason) -> u64 {
self.dropped_by_reason[reason.index()].load(Ordering::Relaxed)
}
pub fn counters(&self) -> Vec<(String, u64)> {
let load = |c: &AtomicU64| c.load(Ordering::Relaxed);
let mut out = vec![
("tun_read_packets".to_string(), load(&self.tun_read_packets)),
(
"tun_write_packets".to_string(),
load(&self.tun_write_packets),
),
("datagrams_sent".to_string(), load(&self.datagrams_sent)),
(
"datagrams_received".to_string(),
load(&self.datagrams_received),
),
("bytes_sent".to_string(), load(&self.bytes_sent)),
("bytes_received".to_string(), load(&self.bytes_received)),
(
"dropped_queue_full".to_string(),
load(&self.dropped_queue_full),
),
(
"dropped_no_connection".to_string(),
load(&self.dropped_no_connection),
),
(
"dropped_too_large".to_string(),
load(&self.dropped_too_large),
),
(
"dropped_send_failed".to_string(),
load(&self.dropped_send_failed),
),
(
"dropped_tun_write_failed".to_string(),
load(&self.dropped_tun_write_failed),
),
(
"connections_dialed".to_string(),
load(&self.connections_dialed),
),
(
"connections_accepted".to_string(),
load(&self.connections_accepted),
),
(
"connections_refused".to_string(),
load(&self.connections_refused),
),
("dial_failures".to_string(), load(&self.dial_failures)),
(
"route_sync_failures".to_string(),
load(&self.route_sync_failures),
),
(
"node_list_updates".to_string(),
load(&self.node_list_updates),
),
];
for reason in DropReason::ALL {
out.push((
format!("dropped_{}", reason.label()),
self.dropped_count(reason),
));
}
out
}
pub fn prometheus(&self) -> String {
let mut text = String::new();
for (name, value) in self.counters() {
text.push_str(&format!(
"# TYPE socialweb_meshd_{name}_total counter\nsocialweb_meshd_{name}_total {value}\n"
));
}
text
}
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn every_drop_reason_has_its_own_counter_in_the_metrics_text() {
let stats = Stats::default();
stats.dropped(DropReason::UnknownDestination);
stats.dropped(DropReason::UnknownDestination);
stats.dropped(DropReason::UnknownPeer);
assert_eq!(stats.dropped_count(DropReason::UnknownDestination), 2);
let text = stats.prometheus();
assert!(text.contains("socialweb_meshd_dropped_unknown_destination_total 2\n"));
assert!(text.contains("socialweb_meshd_dropped_unknown_peer_total 1\n"));
assert!(text.contains("socialweb_meshd_dropped_malformed_total 0\n"));
}
}
