61 lines
1.5 KiB
Rust
61 lines
1.5 KiB
Rust
// xfail-fast
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// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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extern mod std;
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use std::timer::sleep;
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use std::uv;
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use core::cell::Cell;
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use core::pipes;
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use core::pipes::*;
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proto! oneshot (
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waiting:send {
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signal -> !
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}
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)
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/** Spawn a task to provide a service.
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It takes an initialization function that produces a send and receive
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endpoint. The send endpoint is returned to the caller and the receive
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endpoint is passed to the new task.
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*/
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pub fn spawn_service<T:Owned,Tb:Owned>(
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init: extern fn() -> (SendPacketBuffered<T, Tb>,
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RecvPacketBuffered<T, Tb>),
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service: ~fn(v: RecvPacketBuffered<T, Tb>))
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-> SendPacketBuffered<T, Tb> {
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let (client, server) = init();
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// This is some nasty gymnastics required to safely move the pipe
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// into a new task.
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let server = Cell(server);
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do task::spawn {
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service(server.take());
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}
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client
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}
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pub fn main() {
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use oneshot::client::*;
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let c = spawn_service(oneshot::init, |p| { recv(p); });
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let iotask = &uv::global_loop::get();
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sleep(iotask, 500);
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signal(c);
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}
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