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// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
enum msg { closed, received(~[u8]), }
fn producer(c: core::oldcomm::Chan<~[u8]>) {
core::oldcomm::send(c, ~[1u8, 2u8, 3u8, 4u8]);
let empty: ~[u8] = ~[];
core::oldcomm::send(c, empty);
}
fn packager(cb: core::oldcomm::Chan<core::oldcomm::Chan<~[u8]>>, msg: core::oldcomm::Chan<msg>) {
let p: core::oldcomm::Port<~[u8]> = core::oldcomm::Port();
core::oldcomm::send(cb, core::oldcomm::Chan(&p));
loop {
debug!("waiting for bytes");
let data = core::oldcomm::recv(p);
debug!("got bytes");
if vec::len(data) == 0u {
debug!("got empty bytes, quitting");
break;
}
debug!("sending non-empty buffer of length");
log(debug, vec::len(data));
core::oldcomm::send(msg, received(data));
debug!("sent non-empty buffer");
}
debug!("sending closed message");
core::oldcomm::send(msg, closed);
debug!("sent closed message");
}
fn main() {
let p: core::oldcomm::Port<msg> = core::oldcomm::Port();
let ch = core::oldcomm::Chan(&p);
let recv_reader: core::oldcomm::Port<core::oldcomm::Chan<~[u8]>> = core::oldcomm::Port();
let recv_reader_chan = core::oldcomm::Chan(&recv_reader);
let pack = task::spawn(|| packager(recv_reader_chan, ch) );
let source_chan: core::oldcomm::Chan<~[u8]> = core::oldcomm::recv(recv_reader);
let prod = task::spawn(|| producer(source_chan) );
loop {
let msg = core::oldcomm::recv(p);
match msg {
closed => { debug!("Got close message"); break; }
received(data) => {
debug!("Got data. Length is:");
log(debug, vec::len::<u8>(data));
}
}
}
}
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