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 once Request an one-off trace.
31 process Convert traces to perf profiles.
32 reconfig Refresh configuration.
33 report Create a report containing all profiles.
34 reset Clear all local data.
35 help Print this message.
36 "#;
37
main() -> Result<()>38 fn main() -> Result<()> {
39 libprofcollectd::init_logging();
40
41 let args: Vec<String> = env::args().collect();
42 if args.len() != 2 {
43 bail!("This program only takes one argument{}", &HELP_MSG);
44 }
45
46 let action = &args[1];
47 match action.as_str() {
48 "start" => {
49 println!("Scheduling profile collection");
50 libprofcollectd::schedule().context("Failed to schedule collection.")?;
51 }
52 "stop" => {
53 println!("Terminating profile collection");
54 libprofcollectd::terminate().context("Failed to terminate collection.")?;
55 }
56 "once" => {
57 println!("Trace once");
58 libprofcollectd::trace_once("manual").context("Failed to trace.")?;
59 }
60 "process" => {
61 println!("Processing traces");
62 libprofcollectd::process().context("Failed to process traces.")?;
63 }
64 "report" => {
65 println!("Creating profile report");
66 let path = libprofcollectd::report().context("Failed to create profile report.")?;
67 println!("Report created at: {}", &path);
68 }
69 "reset" => {
70 libprofcollectd::reset().context("Failed to reset.")?;
71 println!("Reset done.");
72 }
73 "help" => println!("{}", &HELP_MSG),
74 arg => bail!("Unknown argument: {}\n{}", &arg, &HELP_MSG),
75 }
76 Ok(())
77 }
78