51abdee5f1
This extracts everything related to green scheduling from libstd and introduces a new libgreen crate. This mostly involves deleting most of std::rt and moving it to libgreen. Along with the movement of code, this commit rearchitects many functions in the scheduler in order to adapt to the fact that Local::take now *only* works on a Task, not a scheduler. This mostly just involved threading the current green task through in a few locations, but there were one or two spots where things got hairy. There are a few repercussions of this commit: * tube/rc have been removed (the runtime implementation of rc) * There is no longer a "single threaded" spawning mode for tasks. This is now encompassed by 1:1 scheduling + communication. Convenience methods have been introduced that are specific to libgreen to assist in the spawning of pools of schedulers.
46 lines
1.2 KiB
Rust
46 lines
1.2 KiB
Rust
// Copyright 2013 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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//! Maintains a shared list of sleeping schedulers. Schedulers
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//! use this to wake each other up.
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use std::sync::mpmc_bounded_queue::Queue;
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use sched::SchedHandle;
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pub struct SleeperList {
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priv q: Queue<SchedHandle>,
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}
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impl SleeperList {
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pub fn new() -> SleeperList {
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SleeperList{q: Queue::with_capacity(8*1024)}
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}
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pub fn push(&mut self, value: SchedHandle) {
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assert!(self.q.push(value))
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}
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pub fn pop(&mut self) -> Option<SchedHandle> {
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self.q.pop()
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}
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pub fn casual_pop(&mut self) -> Option<SchedHandle> {
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self.q.pop()
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}
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}
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impl Clone for SleeperList {
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fn clone(&self) -> SleeperList {
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SleeperList {
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q: self.q.clone()
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}
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}
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}
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