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