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-rw-r--r--hello_server/src/lib.rs117
1 files changed, 0 insertions, 117 deletions
diff --git a/hello_server/src/lib.rs b/hello_server/src/lib.rs
deleted file mode 100644
index cd1f616..0000000
--- a/hello_server/src/lib.rs
+++ /dev/null
@@ -1,117 +0,0 @@
-use std::sync::Arc;
-use std::sync::Mutex;
-use std::sync::mpsc;
-use std::thread;
-
-enum Message {
- NewJob(Job),
- Terminate,
-}
-
-trait FnBox {
- fn call_box(self: Box<Self>);
-}
-
-impl <F: FnOnce()> FnBox for F {
- fn call_box(self: Box<F>) {
- (*self)()
- }
-}
-
-type Job = Box<FnBox + Send + 'static>;
-
-pub struct ThreadPool {
- workers: Vec<Worker>,
- sender: mpsc::Sender<Message>,
-}
-
-impl ThreadPool {
- pub fn new(size: usize) -> Result<ThreadPool, &'static str> {
- if size <= 0 {
- return Err("failed to create pool");
- }
-
- let (sender, receiver) = mpsc::channel();
-
- let receiver = Arc::new(Mutex::new(receiver));
-
- let mut workers = Vec::with_capacity(size);
-
- for id in 0..size {
- workers.push(Worker::new(id, Arc::clone(&receiver))?);
- }
-
- Ok(ThreadPool {
- workers,
- sender,
- })
- }
-
- pub fn spawn<F, T>(f: F) -> thread::JoinHandle<T>
- where
- F: FnOnce() -> T + Send + 'static,
- T: Send + 'static
- {
- thread::spawn(f)
- }
-
- pub fn execute<F>(&self, f: F)
- where
- F: FnOnce() + Send + 'static
- {
- let job = Box::new(f);
- self.sender.send(Message::NewJob(job)).unwrap();
- }
-
-}
-
-impl Drop for ThreadPool {
- fn drop(&mut self) {
- for _ in &mut self.workers {
- self.sender.send(Message::Terminate).unwrap();
- }
-
- println!("shutting down all workers...");
-
- for worker in &mut self.workers {
- println!("shutting down worker {}", worker.id);
-
- if let Some(thread) = worker.thread.take() {
- thread.join().unwrap();
- }
- }
- }
-}
-
-struct Worker {
- id: usize,
- thread: Option<thread::JoinHandle<()>>,
-}
-
-impl Worker {
- pub fn new(id: usize, receiver: Arc<Mutex<mpsc::Receiver<Message>>>)
- -> Result<Worker, &'static str>
- {
- let thread = thread::spawn(move || {
- loop {
- let message = receiver.lock().unwrap().recv().unwrap();
-
- match message {
- Message::NewJob(job) => {
- println!("worker {} got job, executing...", id);
- job.call_box();
- },
- Message::Terminate => {
- println!("worker {} was told to terminate...", id);
- break;
- },
- }
- }
- });
-
- Ok(Worker {
- id,
- thread: Some(thread),
- })
- }
-}