mirror of https://github.com/encounter/objdiff.git
118 lines
2.8 KiB
Rust
118 lines
2.8 KiB
Rust
use std::{
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sync::{
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atomic::{AtomicUsize, Ordering},
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mpsc::{Receiver, Sender, TryRecvError},
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Arc, RwLock,
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},
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thread::JoinHandle,
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};
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use anyhow::Result;
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use crate::jobs::{
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bindiff::BinDiffResult, check_update::CheckUpdateResult, objdiff::ObjDiffResult,
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update::UpdateResult,
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};
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pub mod bindiff;
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pub mod check_update;
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pub mod objdiff;
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pub mod update;
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#[derive(Debug, Eq, PartialEq, Copy, Clone)]
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pub enum Job {
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ObjDiff,
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BinDiff,
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CheckUpdate,
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Update,
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}
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pub static JOB_ID: AtomicUsize = AtomicUsize::new(0);
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pub struct JobState {
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pub id: usize,
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pub job_type: Job,
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pub handle: Option<JoinHandle<JobResult>>,
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pub status: Arc<RwLock<JobStatus>>,
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pub cancel: Sender<()>,
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pub should_remove: bool,
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}
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#[derive(Default)]
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pub struct JobStatus {
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pub title: String,
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pub progress_percent: f32,
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pub progress_items: Option<[u32; 2]>,
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pub status: String,
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pub error: Option<anyhow::Error>,
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}
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pub enum JobResult {
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None,
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ObjDiff(Box<ObjDiffResult>),
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BinDiff(Box<BinDiffResult>),
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CheckUpdate(Box<CheckUpdateResult>),
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Update(Box<UpdateResult>),
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}
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fn should_cancel(rx: &Receiver<()>) -> bool {
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match rx.try_recv() {
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Ok(_) | Err(TryRecvError::Disconnected) => true,
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Err(_) => false,
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}
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}
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type Status = Arc<RwLock<JobStatus>>;
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fn queue_job(
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title: &str,
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job_type: Job,
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run: impl FnOnce(&Status, Receiver<()>) -> Result<JobResult> + Send + 'static,
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) -> JobState {
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let status = Arc::new(RwLock::new(JobStatus {
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title: title.to_string(),
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progress_percent: 0.0,
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progress_items: None,
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status: String::new(),
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error: None,
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}));
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let status_clone = status.clone();
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let (tx, rx) = std::sync::mpsc::channel();
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let handle = std::thread::spawn(move || {
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return match run(&status, rx) {
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Ok(state) => state,
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Err(e) => {
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if let Ok(mut w) = status.write() {
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w.error = Some(e);
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}
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JobResult::None
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}
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};
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});
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let id = JOB_ID.fetch_add(1, Ordering::Relaxed);
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log::info!("Started job {}", id);
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JobState {
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id,
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job_type,
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handle: Some(handle),
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status: status_clone,
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cancel: tx,
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should_remove: true,
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}
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}
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fn update_status(
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status: &Status,
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str: String,
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count: u32,
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total: u32,
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cancel: &Receiver<()>,
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) -> Result<()> {
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let mut w = status.write().map_err(|_| anyhow::Error::msg("Failed to lock job status"))?;
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w.progress_items = Some([count, total]);
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w.progress_percent = count as f32 / total as f32;
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if should_cancel(cancel) {
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w.status = "Cancelled".to_string();
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return Err(anyhow::Error::msg("Cancelled"));
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} else {
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w.status = str;
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}
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Ok(())
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}
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