src/test/run-pass/task-comm-9.rs

   1 // Copyright 2012-2014 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 use std::thread::Thread;
  12 use std::sync::mpsc::{channel, Sender};
  13
  14 pub fn main() { test00(); }
  15
  16 fn test00_start(c: &Sender<int>, number_of_messages: int) {
  17     let mut i: int = 0;
  18     while i < number_of_messages { c.send(i + 0).unwrap(); i += 1; }
  19 }
  20
  21 fn test00() {
  22     let r: int = 0;
  23     let mut sum: int = 0;
  24     let (tx, rx) = channel();
  25     let number_of_messages: int = 10;
  26
  27     let result = Thread::scoped(move|| {
  28         test00_start(&tx, number_of_messages);
  29     });
  30
  31     let mut i: int = 0;
  32     while i < number_of_messages {
  33         sum += rx.recv().unwrap();
  34         println!("{}", r);
  35         i += 1;
  36     }
  37
  38     result.join();
  39
  40     assert_eq!(sum, number_of_messages * (number_of_messages - 1) / 2);
  41 }