src/test/run-pass/issue-3609.rs

   1 // Copyright 2014 The Rust Project Developers. See the COPYRIGHT
   2 // file at the top-level directory of this distribution and at
   3 // http://rust-lang.org/COPYRIGHT.
   4 //
   5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
   6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
   7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
   8 // option. This file may not be copied, modified, or distributed
   9 // except according to those terms.
  10
  11 #![allow(unknown_features)]
  12 #![feature(std_misc)]
  13
  14 use std::thread;
  15 use std::sync::mpsc::Sender;
  16
  17 type RingBuffer = Vec<f64> ;
  18 type SamplesFn = Box<FnMut(&RingBuffer) + Send>;
  19
  20 enum Msg
  21 {
  22     GetSamples(String, SamplesFn), // sample set name, callback which receives samples
  23 }
  24
  25 fn foo(name: String, samples_chan: Sender<Msg>) {
  26     thread::spawn(move|| {
  27         let mut samples_chan = samples_chan;
  28
  29         let callback: SamplesFn = Box::new(move |buffer| {
  30             for i in 0..buffer.len() {
  31                 println!("{}: {}", i, buffer[i])
  32             }
  33         });
  34
  35         samples_chan.send(Msg::GetSamples(name.clone(), callback));
  36     }).join();
  37 }
  38
  39 pub fn main() {}