Remove ThreadPool

Having switched to iterators and Rayon this is no longer used.

rust/lib.rs

@@ -1,7 +1,6 @@
 mod finder;
 mod matcher;
 mod sorter;
-mod thread_pool;
 
 use std::collections::HashMap;
 use std::ffi::CStr;

rust/thread_pool.rs

@@ -1,87 +0,0 @@
-use std::sync::mpsc;
-use std::sync::Arc;
-use std::sync::Mutex;
-use std::thread;
-
-enum Message {
-    NewJob(Job),
-    Terminate,
-}
-
-pub struct ThreadPool {
-    jobs: mpsc::Sender<Message>,
-    threads: Vec<Worker>,
-}
-
-trait FnBox {
-    fn call_box(self: Box<Self>);
-}
-
-impl<F: FnOnce()> FnBox for F {
-    fn call_box(self: Box<F>) {
-        (*self)()
-    }
-}
-
-type Job = Box<dyn FnBox + Send + 'static>;
-
-impl ThreadPool {
-    pub fn new(thread_count: usize) -> Self {
-        let (jobs, receiver) = mpsc::channel();
-        let receiver = Arc::new(Mutex::new(receiver));
-
-        let mut threads: Vec<Worker> = Vec::new();
-        for id in 1..thread_count {
-            threads.push(Worker::new(id, Arc::clone(&receiver)));
-        }
-
-        ThreadPool { jobs, threads }
-    }
-
-    pub fn execute<F>(&self, f: F)
-    where
-        F: FnOnce() + Send + 'static,
-    {
-        let job = Box::new(f);
-        self.jobs.send(Message::NewJob(job)).unwrap();
-    }
-}
-
-impl Drop for ThreadPool {
-    fn drop(&mut self) {
-        for _ in &mut self.threads {
-            self.jobs.send(Message::Terminate).unwrap();
-        }
-
-        for worker in &mut self.threads {
-            if let Some(thread) = worker.thread.take() {
-                thread.join().unwrap();
-            }
-        }
-    }
-}
-
-struct Worker {
-    _id: usize,
-    thread: Option<thread::JoinHandle<()>>,
-}
-
-impl Worker {
-    fn new(id: usize, receiver: Arc<Mutex<mpsc::Receiver<Message>>>) -> Worker {
-        let thread = thread::spawn(move || loop {
-            let message = receiver.lock().unwrap().recv().unwrap();
-
-            match message {
-                Message::NewJob(job) => job.call_box(),
-                Message::Terminate => {
-                    break;
-                }
-            }
-        });
-
-        Worker {
-            _id: id,
-            thread: Some(thread),
-        }
-    }
-}