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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
use std::str::IntoMaybeOwned;
use std::task;
use std::comm::Sender;
use std::task::TaskBuilder;
use native::task::NativeTaskBuilder;
use rtinstrument;
use task_state;
pub fn spawn_named<S: IntoMaybeOwned<'static>>(name: S, f: proc():Send) {
let builder = task::TaskBuilder::new().named(name);
builder.spawn(proc() {
rtinstrument::instrument(f);
});
}
pub fn spawn_named_native<S: IntoMaybeOwned<'static>>(name: S, f: proc():Send) {
let builder = task::TaskBuilder::new().named(name).native();
builder.spawn(proc() {
rtinstrument::instrument(f);
});
}
/// Arrange to send a particular message to a channel if the task fails.
pub fn spawn_named_with_send_on_failure<T: Send>(name: &'static str,
state: task_state::TaskState,
f: proc(): Send,
msg: T,
dest: Sender<T>,
native: bool) {
let with_state = proc() {
task_state::initialize(state);
rtinstrument::instrument(f);
};
let future_result = if native {
TaskBuilder::new().named(name).native().try_future(with_state)
} else {
TaskBuilder::new().named(name).try_future(with_state)
};
let watched_name = name.into_string();
let watcher_name = format!("{}Watcher", watched_name);
TaskBuilder::new().named(watcher_name).spawn(proc() {
rtinstrument::instrument(proc() {
match future_result.unwrap() {
Ok(()) => (),
Err(..) => {
debug!("{} failed, notifying constellation", name);
dest.send(msg);
}
}
});
});
}
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