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process.rs
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process.rs
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use crate::helpers::Id;
use crate::service::{run, stop};
use colored::Colorize;
use global_placeholders::global;
use macros_rs::{crashln, string};
use serde_derive::{Deserialize, Serialize};
use std::collections::{BTreeMap, HashMap};
use std::{fs, io::Result, path::Path, path::PathBuf};
#[derive(Clone, Debug, Deserialize, Serialize)]
pub struct Process {
pub pid: i64,
pub name: String,
pub running: bool,
}
pub struct Runner {
id: Id,
log_path: String,
process_list: HashMap<usize, Process>,
}
impl Runner {
pub fn new(path: String) -> Self {
Runner {
log_path: path,
// start at highest id in dump
id: Id::new(0),
process_list: HashMap::new(),
}
}
pub fn start(&mut self, name: String, command: &String) {
let pid = run(&name, &self.log_path, &command);
self.process_list.insert(self.id.next(), Process { pid, name, running: true });
}
pub fn stop(&mut self, id: usize) {
if let Some(item) = self.process_list.get_mut(&id) {
let pid = item.pid;
// add error catching in cc
// to allow match Err() here
stop(pid);
item.running = false;
} else {
crashln!("Process with {id} does not exist");
}
}
pub fn info(&self, id: usize) -> Option<&Process> { self.process_list.get(&id) }
pub fn list(&self) -> &HashMap<usize, Process> { &self.process_list }
}
#[derive(Clone, Debug, Deserialize, Serialize)]
pub struct DumpFile {
pub process_list: BTreeMap<usize, Process>,
}
fn read_dump() -> DumpFile {
let contents = match fs::read_to_string(global!("pmc.dump")) {
Ok(contents) => contents,
Err(err) => crashln!("Cannot find dumpfile.\n{}", string!(err).white()),
};
match toml::from_str(&contents).map_err(|err| string!(err)) {
Ok(parsed) => parsed,
Err(err) => crashln!("Cannot read dumpfile.\n{}", err.white()),
}
}
fn write_dump(dump: &DumpFile) {
let contents = match toml::to_string(dump) {
Ok(contents) => contents,
Err(err) => crashln!("Cannot parse dump.\n{}", string!(err).white()),
};
if let Err(err) = fs::write(global!("pmc.dump"), contents) {
crashln!("Error writing dumpfile.\n{}", string!(err).white())
}
}

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