rust/src/test/run-pass/task-comm-3.rs

61 lines
1.4 KiB
Rust

use std;
use pipes::Chan;
use pipes::send;
use pipes::recv;
fn main() { debug!("===== WITHOUT THREADS ====="); test00(); }
fn test00_start(ch: Chan<int>, message: int, count: int) {
debug!("Starting test00_start");
let mut i: int = 0;
while i < count {
debug!("Sending Message");
ch.send(message + 0);
i = i + 1;
}
debug!("Ending test00_start");
}
fn test00() {
let number_of_tasks: int = 16;
let number_of_messages: int = 4;
debug!("Creating tasks");
let po = pipes::PortSet();
let mut i: int = 0;
// Create and spawn tasks...
let mut results = ~[];
while i < number_of_tasks {
let ch = po.chan();
do task::task().future_result(|+r| {
vec::push(results, r);
}).spawn |copy i| {
test00_start(ch, i, number_of_messages)
}
i = i + 1;
}
// Read from spawned tasks...
let mut sum = 0;
for results.each |r| {
i = 0;
while i < number_of_messages {
let value = po.recv();
sum += value;
i = i + 1;
}
}
// Join spawned tasks...
for results.each |r| { future::get(&r); }
debug!("Completed: Final number is: ");
log(error, sum);
// assert (sum == (((number_of_tasks * (number_of_tasks - 1)) / 2) *
// number_of_messages));
assert (sum == 480);
}