Add managed_queue example and tests.

Cargo.toml

@@ -33,6 +33,7 @@ members = [
   "examples/raw_upload",
   "examples/pastebin",
   "examples/state",
+  "examples/managed_queue",
   "examples/uuid",
   "examples/session",
   "examples/raw_sqlite",

examples/managed_queue/Cargo.toml

@@ -0,0 +1,12 @@
+[package]
+name = "managed_queue"
+version = "0.0.1"
+workspace = "../.."
+
+[dependencies]
+crossbeam = "*"
+rocket = { path = "../../lib" }
+rocket_codegen = { path = "../../codegen" }
+
+[dev-dependencies]
+rocket = { path = "../../lib", features = ["testing"] }

examples/managed_queue/src/main.rs

@@ -0,0 +1,68 @@
+#![feature(plugin, custom_derive)]
+#![plugin(rocket_codegen)]
+
+extern crate crossbeam;
+extern crate rocket;
+
+use crossbeam::sync::MsQueue;
+use rocket::State;
+
+#[derive(FromForm, Debug)]
+struct Event {
+    description: String
+}
+
+struct LogChannel(MsQueue<Event>);
+
+#[get("/push?<event>")]
+fn push(event: Event, queue: State<LogChannel>) -> &'static str {
+    queue.0.push(event);
+    "got it"
+}
+
+#[get("/pop")]
+fn pop(queue: State<LogChannel>) -> String {
+    let e = queue.0.pop();
+    e.description
+}
+
+// Use with: curl http://<rocket ip>:8000/test?foo=bar
+
+fn main() {
+    let q:MsQueue<Event> = MsQueue::new();
+
+    rocket::ignite()
+        .mount("/", routes![push,pop])
+        .manage(LogChannel(q))
+        .launch();
+
+}
+
+#[cfg(test)]
+mod test {
+    use super::rocket;
+    use rocket::testing::MockRequest;
+    use rocket::http::Status;
+    use rocket::http::Method::*;
+    use crossbeam::sync::MsQueue;
+    use std::{thread, time};
+    use super::LogChannel;
+    use super::Event;
+
+    #[test]
+    fn test_get() {
+        let q: MsQueue<Event> = MsQueue::new();
+        let rocket = rocket::ignite().manage(LogChannel(q)).mount("/", routes![super::push, super::pop]);
+        let mut req = MockRequest::new(Get, "/push?description=test1");
+        let response = req.dispatch_with(&rocket);
+        assert_eq!(response.status(), Status::Ok);
+
+        let ten_millis = time::Duration::from_millis(10);
+        thread::sleep(ten_millis);
+
+        let mut req = MockRequest::new(Get, "/pop");
+        let mut response = req.dispatch_with(&rocket);
+        let body_str = response.body().and_then(|body| body.into_string());
+        assert_eq!(body_str, Some("test1".to_string()));
+    }
+}