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authorAdam Carpenter <gitlab@53hor.net>2019-07-09 15:14:04 -0400
committerAdam Carpenter <gitlab@53hor.net>2019-07-09 15:14:04 -0400
commit7e8ee5ed9cad6484e9f13f81731b102ced58402e (patch)
tree5395402ab07bbb5a659dbd68c701e22a1227202f /rust-book/hello_server
downloadlearning-rust-7e8ee5ed9cad6484e9f13f81731b102ced58402e.tar.xz
learning-rust-7e8ee5ed9cad6484e9f13f81731b102ced58402e.zip
Init.
Diffstat (limited to 'rust-book/hello_server')
-rwxr-xr-xrust-book/hello_server/404.html19
-rwxr-xr-xrust-book/hello_server/Cargo.lock4
-rwxr-xr-xrust-book/hello_server/Cargo.toml7
-rwxr-xr-xrust-book/hello_server/hello.html18
-rwxr-xr-xrust-book/hello_server/src/bin/main.rs46
-rwxr-xr-xrust-book/hello_server/src/lib.rs117
6 files changed, 211 insertions, 0 deletions
diff --git a/rust-book/hello_server/404.html b/rust-book/hello_server/404.html
new file mode 100755
index 0000000..b106938
--- /dev/null
+++ b/rust-book/hello_server/404.html
@@ -0,0 +1,19 @@
+
+<!doctype html>
+<html lang="en">
+ <head>
+ <meta charset="utf-8">
+ <title>
+ Hello!
+ </title>
+ </head>
+ <body>
+ <h1>
+ Oops!
+ </h1>
+ <p>
+ Sorry, Idk what you're asking for.
+ </p>
+ </body>
+</html>
+
diff --git a/rust-book/hello_server/Cargo.lock b/rust-book/hello_server/Cargo.lock
new file mode 100755
index 0000000..738010c
--- /dev/null
+++ b/rust-book/hello_server/Cargo.lock
@@ -0,0 +1,4 @@
+[[package]]
+name = "hello_server"
+version = "0.1.0"
+
diff --git a/rust-book/hello_server/Cargo.toml b/rust-book/hello_server/Cargo.toml
new file mode 100755
index 0000000..39057cc
--- /dev/null
+++ b/rust-book/hello_server/Cargo.toml
@@ -0,0 +1,7 @@
+[package]
+name = "hello_server"
+version = "0.1.0"
+authors = ["Adam Carpenter <53hornet@gmail.com>"]
+edition = "2018"
+
+[dependencies]
diff --git a/rust-book/hello_server/hello.html b/rust-book/hello_server/hello.html
new file mode 100755
index 0000000..869c8f9
--- /dev/null
+++ b/rust-book/hello_server/hello.html
@@ -0,0 +1,18 @@
+<!doctype html>
+<html lang="en">
+ <head>
+ <meta charset="utf-8">
+ <title>
+ Hello!
+ </title>
+ </head>
+ <body>
+ <h1>
+ Hello!
+ </h1>
+ <p>
+ Hi from Rust
+ </p>
+ </body>
+</html>
+
diff --git a/rust-book/hello_server/src/bin/main.rs b/rust-book/hello_server/src/bin/main.rs
new file mode 100755
index 0000000..bcf1e46
--- /dev/null
+++ b/rust-book/hello_server/src/bin/main.rs
@@ -0,0 +1,46 @@
+use hello_server::ThreadPool;
+use std::thread;
+use std::time::Duration;
+use std::io::prelude::*;
+use std::fs;
+use std::net::TcpStream;
+use std::net::TcpListener;
+
+fn main() {
+ let listener = TcpListener::bind("127.0.0.1:7878").unwrap();
+ let pool = ThreadPool::new(4).unwrap();
+
+ for stream in listener.incoming().take(2) {
+ let stream = stream.unwrap();
+
+ pool.execute(|| {
+ handle_connection(stream);
+ });
+ }
+
+ println!("shutting down...");
+
+}
+
+fn handle_connection(mut stream: TcpStream) {
+ let mut buffer = [0; 512];
+ stream.read(&mut buffer).unwrap();
+ let get = b"GET / HTTP/1.1\r\n";
+ let sleep = b"GET /sleep HTTP/1.1\r\n";
+
+ let (status_line, filename) = if buffer.starts_with(get) {
+ ("HTTP/1.1 200 OK\r\n\r\n", "hello.html")
+ }
+ else if buffer.starts_with(sleep) {
+ thread::sleep(Duration::from_secs(5));
+ ("HTTP/1.1 200 OK\r\n\r\n", "hello.html")
+ }
+ else {
+ ("HTTP/1.1 404 NOT FOUND\r\n\r\n", "404.html")
+ };
+
+ let contents = fs::read_to_string(filename).unwrap();
+ let response = format!("{}{}", status_line, contents);
+ stream.write(response.as_bytes()).unwrap();
+ stream.flush().unwrap();
+}
diff --git a/rust-book/hello_server/src/lib.rs b/rust-book/hello_server/src/lib.rs
new file mode 100755
index 0000000..cd1f616
--- /dev/null
+++ b/rust-book/hello_server/src/lib.rs
@@ -0,0 +1,117 @@
+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),
+ })
+ }
+}
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