1 //
2 // Copyright (C) 2020 The Android Open Source Project
3 //
4 // Licensed under the Apache License, Version 2.0 (the "License");
5 // you may not use this file except in compliance with the License.
6 // You may obtain a copy of the License at
7 //
8 // http://www.apache.org/licenses/LICENSE-2.0
9 //
10 // Unless required by applicable law or agreed to in writing, software
11 // distributed under the License is distributed on an "AS IS" BASIS,
12 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 // See the License for the specific language governing permissions and
14 // limitations under the License.
15 //
16
17 //! Command to control profcollectd behaviour.
18
19 use anyhow::{bail, Context, Result};
20 use std::env;
21
22 const HELP_MSG: &str = r#"
23 usage: profcollectctl [command]
24
25 Command to control profcollectd behaviour.
26
27 command:
28 start Schedule periodic collection.
29 stop Terminate periodic collection.
30 trace Request an one-off system-wide trace.
31 process Convert traces to perf profiles.
32 report Create a report containing all profiles.
33 reset Clear all local data.
34 help Print this message.
35 "#;
36
main() -> Result<()>37 fn main() -> Result<()> {
38 libprofcollectd::init_logging();
39
40 let args: Vec<String> = env::args().collect();
41 if args.len() != 2 {
42 bail!("This program only takes one argument{}", &HELP_MSG);
43 }
44
45 let action = &args[1];
46 match action.as_str() {
47 "start" => {
48 println!("Scheduling profile collection");
49 libprofcollectd::schedule().context("Failed to schedule collection.")?;
50 }
51 "stop" => {
52 println!("Terminating profile collection");
53 libprofcollectd::terminate().context("Failed to terminate collection.")?;
54 }
55 "trace" => {
56 println!("Performing system-wide trace");
57 libprofcollectd::trace_system("manual").context("Failed to trace.")?;
58 }
59 "process" => {
60 println!("Processing traces");
61 libprofcollectd::process().context("Failed to process traces.")?;
62 }
63 "report" => {
64 println!("Creating profile report");
65 let path = libprofcollectd::report().context("Failed to create profile report.")?;
66 println!("Report created at: {}", &path);
67 }
68 "reset" => {
69 libprofcollectd::reset().context("Failed to reset.")?;
70 println!("Reset done.");
71 }
72 "help" => println!("{}", &HELP_MSG),
73 arg => bail!("Unknown argument: {}\n{}", &arg, &HELP_MSG),
74 }
75 Ok(())
76 }
77