-
Notifications
You must be signed in to change notification settings - Fork 1.6k
/
linux.rs
295 lines (267 loc) · 8.6 KB
/
linux.rs
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
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
use procfs::process::{FDInfo, Io, Process, Stat, Status, TasksIter};
use procfs::{ProcError, ProcessCgroup};
use std::collections::HashMap;
use std::thread;
use std::time::{Duration, Instant};
pub enum ProcessTask {
Process(Process),
Task { stat: Box<Stat>, owner: u32 },
}
impl ProcessTask {
pub fn stat(&self) -> Result<Stat, ProcError> {
match self {
ProcessTask::Process(x) => match x.stat() {
Ok(it) => Ok(it),
Err(err) => Err(err),
},
ProcessTask::Task { stat: x, owner: _ } => Ok(*x.clone()),
}
}
pub fn cmdline(&self) -> Result<Vec<String>, ProcError> {
match self {
ProcessTask::Process(x) => x.cmdline(),
_ => Err(ProcError::Other("not supported".to_string())),
}
}
pub fn cgroups(&self) -> Result<Vec<ProcessCgroup>, ProcError> {
match self {
ProcessTask::Process(x) => x.cgroups(),
_ => Err(ProcError::Other("not supported".to_string())),
}
}
pub fn fd(&self) -> Result<Vec<FDInfo>, ProcError> {
match self {
ProcessTask::Process(x) => {
let fds = match x.fd() {
Ok(f) => f,
Err(e) => return Err(e),
};
fds.collect()
}
_ => Err(ProcError::Other("not supported".to_string())),
}
}
pub fn loginuid(&self) -> Result<u32, ProcError> {
match self {
ProcessTask::Process(x) => x.loginuid(),
_ => Err(ProcError::Other("not supported".to_string())),
}
}
pub fn owner(&self) -> u32 {
match self {
ProcessTask::Process(x) => x.uid().unwrap_or(0),
ProcessTask::Task { stat: _, owner: x } => *x,
}
}
pub fn wchan(&self) -> Result<String, ProcError> {
match self {
ProcessTask::Process(x) => x.wchan(),
_ => Err(ProcError::Other("not supported".to_string())),
}
}
}
pub struct ProcessInfo {
pub pid: i32,
pub ppid: i32,
pub curr_proc: ProcessTask,
pub prev_proc: ProcessTask,
pub curr_io: Option<Io>,
pub prev_io: Option<Io>,
pub curr_status: Option<Status>,
pub interval: Duration,
}
pub fn collect_proc(interval: Duration, with_thread: bool) -> Vec<ProcessInfo> {
let mut base_procs = Vec::new();
let mut base_tasks = HashMap::new();
let mut ret = Vec::new();
if let Ok(all_proc) = procfs::process::all_processes() {
for proc in all_proc.flatten() {
let io = proc.io().ok();
let time = Instant::now();
if with_thread {
if let Ok(iter) = proc.tasks() {
collect_task(iter, &mut base_tasks);
}
}
base_procs.push((proc.pid(), proc, io, time));
// match proc {
// Ok(p) => {
// let io = p.io().ok();
// let time = Instant::now();
// if with_thread {
// if let Ok(iter) = p.tasks() {
// collect_task(iter, &mut base_tasks);
// }
// }
// base_procs.push((p.pid(), p, io, time));
// }
// Err(_) => {}
// }
}
}
thread::sleep(interval);
for (pid, prev_proc, prev_io, prev_time) in base_procs {
let curr_proc_pid = pid;
let prev_proc_pid = prev_proc.pid();
let curr_proc = match Process::new(curr_proc_pid) {
Ok(p) => p,
Err(_) => return Vec::<ProcessInfo>::new(),
};
let prev_proc = match Process::new(prev_proc_pid) {
Ok(p) => p,
Err(_) => return Vec::<ProcessInfo>::new(),
};
let curr_io = curr_proc.io().ok();
let curr_status = curr_proc.status().ok();
let curr_time = Instant::now();
let interval = curr_time - prev_time;
let ppid = match curr_proc.stat() {
Ok(p) => p.ppid,
Err(_) => 0,
};
let owner = curr_proc.uid().unwrap_or(0);
let mut curr_tasks = HashMap::new();
if with_thread {
if let Ok(iter) = curr_proc.tasks() {
collect_task(iter, &mut curr_tasks);
}
}
let curr_proc = ProcessTask::Process(curr_proc);
let prev_proc = ProcessTask::Process(prev_proc);
let proc = ProcessInfo {
pid,
ppid,
curr_proc,
prev_proc,
curr_io,
prev_io,
curr_status,
interval,
};
ret.push(proc);
for (tid, (pid, curr_stat, curr_status, curr_io)) in curr_tasks {
if let Some((_, prev_stat, _, prev_io)) = base_tasks.remove(&tid) {
let proc = ProcessInfo {
pid: tid,
ppid: pid,
curr_proc: ProcessTask::Task {
stat: Box::new(curr_stat),
owner,
},
prev_proc: ProcessTask::Task {
stat: Box::new(prev_stat),
owner,
},
curr_io,
prev_io,
curr_status,
interval,
};
ret.push(proc);
}
}
}
ret
}
#[allow(clippy::type_complexity)]
fn collect_task(iter: TasksIter, map: &mut HashMap<i32, (i32, Stat, Option<Status>, Option<Io>)>) {
for task in iter {
let task = if let Ok(x) = task {
x
} else {
continue;
};
if task.tid != task.pid {
let stat = if let Ok(x) = task.stat() {
x
} else {
continue;
};
let status = task.status().ok();
let io = task.io().ok();
map.insert(task.tid, (task.pid, stat, status, io));
}
}
}
impl ProcessInfo {
/// PID of process
pub fn pid(&self) -> i32 {
self.pid
}
/// Name of command
pub fn name(&self) -> String {
self.command()
.split(' ')
.collect::<Vec<_>>()
.first()
.map(|x| x.to_string())
.unwrap_or_default()
}
/// Full name of command, with arguments
pub fn command(&self) -> String {
if let Ok(cmd) = &self.curr_proc.cmdline() {
if !cmd.is_empty() {
cmd.join(" ").replace('\n', " ").replace('\t', " ")
} else {
match self.curr_proc.stat() {
Ok(p) => p.comm,
Err(_) => "".to_string(),
}
}
} else {
match self.curr_proc.stat() {
Ok(p) => p.comm,
Err(_) => "".to_string(),
}
}
}
/// Get the status of the process
pub fn status(&self) -> String {
match self.curr_proc.stat() {
Ok(p) => match p.state {
'S' => "Sleeping".into(),
'R' => "Running".into(),
'D' => "Disk sleep".into(),
'Z' => "Zombie".into(),
'T' => "Stopped".into(),
't' => "Tracing".into(),
'X' => "Dead".into(),
'x' => "Dead".into(),
'K' => "Wakekill".into(),
'W' => "Waking".into(),
'P' => "Parked".into(),
_ => "Unknown".into(),
},
Err(_) => "Unknown".into(),
}
}
/// CPU usage as a percent of total
pub fn cpu_usage(&self) -> f64 {
let curr_time = match self.curr_proc.stat() {
Ok(c) => c.utime + c.stime,
Err(_) => 0,
};
let prev_time = match self.prev_proc.stat() {
Ok(c) => c.utime + c.stime,
Err(_) => 0,
};
let usage_ms =
(curr_time - prev_time) * 1000 / procfs::ticks_per_second().unwrap_or(100) as u64;
let interval_ms = self.interval.as_secs() * 1000 + u64::from(self.interval.subsec_millis());
usage_ms as f64 * 100.0 / interval_ms as f64
}
/// Memory size in number of bytes
pub fn mem_size(&self) -> u64 {
match self.curr_proc.stat() {
Ok(p) => p.rss_bytes().unwrap_or(0),
Err(_) => 0,
}
}
/// Virtual memory size in bytes
pub fn virtual_size(&self) -> u64 {
match self.curr_proc.stat() {
Ok(p) => p.vsize,
Err(_) => 0u64,
}
}
}