monitor/src/prcs.rs

110 lines
3.0 KiB
Rust

use std::sync::Arc;
use std::process::{ Command, Output };
use log::{error, warn};
use tokio::time::Duration;
use crate::structs::CustomError;
pub async fn get_pid(name: &str) -> Output {
let name = Arc::new(name.to_string());
tokio::task::spawn_blocking(move || {
Command::new("pidof")
.arg(&*name)
.output()
.unwrap_or_else(|_| {
error!("Failed to execute command 'pidof'");
std::process::exit(101);
})
})
.await
.unwrap()
}
// ! can be with bug !!!
// * APPROVED
pub async fn is_active(name: &str)-> bool {
let arc_name = Arc::new(name.to_string());
tokio::task::spawn_blocking(move || {
let output = Command::new("pidof")
.arg(&*arc_name)
.output()
.unwrap_or_else(|_| {
error!("Failed to execute command 'pidof'");
std::process::exit(101);
});
!String::from_utf8_lossy(&output.stdout).trim().is_empty()
})
.await
.unwrap()
}
// T is for stopped processes
pub async fn is_frozen(name: &str) -> bool {
let temp = get_pid(name).await;
let pid = String::from_utf8_lossy(&temp.stdout);
let pid = pid.trim();
let arc_pid = Arc::new(pid.to_string());
if pid.is_empty(){
return false;
} else {
tokio::task::spawn_blocking(move || {
let cmd = Command::new("ps")
.args(["-o", "stat=", "-p", &arc_pid])
.output()
.unwrap_or_else(|_| {
error!("Failed to execute ps command");
std::process::exit(101);
});
String::from_utf8_lossy(&cmd.stdout).contains("T")
})
.await
.unwrap()
}
}
pub async fn terminate_process (name: &str) {
let _ = Command::new("pkill")
.arg(name)
.output()
.unwrap_or_else(|_| {
error!("Failed to execute command 'pkill'");
std::process::exit(101);
});
}
// another test
pub async fn freeze_process(name: &str) {
let _ = Command::new("pkill")
.args(["-STOP", name])
.output()
.unwrap_or_else(|_| {
error!("Failed to freeze process");
std::process::exit(101);
});
}
pub async fn unfreeze_process(name: &str) {
let _ = Command::new("pkill")
.args(["-CONT", name])
.output()
.unwrap_or_else(|_| {
error!("Failed to unfreeze process");
std::process::exit(101);
});
}
pub async fn restart_process(name: &str, path: &str) -> Result<(), CustomError> {
terminate_process(name).await;
tokio::time::sleep(Duration::from_millis(100)).await;
return start_process(name, path).await;
}
pub async fn start_process(name: &str, path: &str) -> Result<(), CustomError> {
let runsh = format!("{}{}", path, "/run.sh");
let mut command = Command::new("bash");
command.arg(runsh);
match command.spawn() {
Ok(_) => {
warn!("Process {} is running now!", name);
Ok(())
},
Err(_) => {
return Err(CustomError::Fatal)
},
}
}