id stringlengths 22 133 | text stringlengths 40 40.2k | arch stringclasses 1
value | syntax stringclasses 1
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values | repo stringclasses 27
values | path stringlengths 5 116 | license stringclasses 6
values | commit stringlengths 40 40 | source_host stringclasses 1
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tokio-rs/tokio:tokio/src/runtime/task/raw.rs:1 | use crate::future::Future;
use crate::runtime::task::{Cell, Harness, Header, Schedule, State};
use std::ptr::NonNull;
use std::task::{Poll, Waker};
/// Raw task handle
pub(super) struct RawTask {
ptr: NonNull<Header>,
}
pub(super) struct Vtable {
/// Polls the future.
pub(super) poll: unsafe fn(NonNull<H... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/raw.rs | MIT | 8e0e56fdf23da0ad807c78ac57a19db939666253 | github | async-runtime | https://github.com/tokio-rs/tokio/blob/8e0e56fdf23da0ad807c78ac57a19db939666253/tokio/src/runtime/task/raw.rs | 1 | 60 |
tokio-rs/tokio:tokio/src/runtime/task/raw.rs:2 | pub(super) fn vtable<T: Future, S: Schedule>() -> &'static Vtable {
&Vtable {
poll: poll::<T, S>,
dealloc: dealloc::<T, S>,
try_read_output: try_read_output::<T, S>,
try_set_join_waker: try_set_join_waker::<T, S>,
drop_join_handle_slow: drop_join_handle_slow::<T, S>,
... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/raw.rs | MIT | 8e0e56fdf23da0ad807c78ac57a19db939666253 | github | async-runtime | https://github.com/tokio-rs/tokio/blob/8e0e56fdf23da0ad807c78ac57a19db939666253/tokio/src/runtime/task/raw.rs | 41 | 100 |
tokio-rs/tokio:tokio/src/runtime/task/raw.rs:1 | use crate::future::Future;
use crate::runtime::task::{Cell, Harness, Header, Schedule, State};
use std::ptr::NonNull;
use std::task::{Poll, Waker};
/// Raw task handle
pub(super) struct RawTask {
ptr: NonNull<Header>,
}
pub(super) struct Vtable {
/// Polls the future.
pub(super) poll: unsafe fn(NonNull<H... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/raw.rs | MIT | 1be8e9dfb7b1140568ac10ac34f5f8171a89e40d | github | async-runtime | https://github.com/tokio-rs/tokio/blob/1be8e9dfb7b1140568ac10ac34f5f8171a89e40d/tokio/src/runtime/task/raw.rs | 1 | 60 |
tokio-rs/tokio:tokio/src/runtime/task/raw.rs:2 | dealloc: dealloc::<T, S>,
try_read_output: try_read_output::<T, S>,
try_set_join_waker: try_set_join_waker::<T, S>,
drop_join_handle_slow: drop_join_handle_slow::<T, S>,
remote_abort: remote_abort::<T, S>,
shutdown: shutdown::<T, S>,
}
}
impl RawTask {
pub(super) fn new<... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/raw.rs | MIT | 1be8e9dfb7b1140568ac10ac34f5f8171a89e40d | github | async-runtime | https://github.com/tokio-rs/tokio/blob/1be8e9dfb7b1140568ac10ac34f5f8171a89e40d/tokio/src/runtime/task/raw.rs | 41 | 100 |
tokio-rs/tokio:tokio/src/runtime/task/raw.rs:3 | }
pub(super) fn dealloc(self) {
let vtable = self.header().vtable;
unsafe {
(vtable.dealloc)(self.ptr);
}
}
/// Safety: `dst` must be a `*mut Poll<super::Result<T::Output>>` where `T`
/// is the future stored by the task.
pub(super) unsafe fn try_read_output(sel... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/raw.rs | MIT | 1be8e9dfb7b1140568ac10ac34f5f8171a89e40d | github | async-runtime | https://github.com/tokio-rs/tokio/blob/1be8e9dfb7b1140568ac10ac34f5f8171a89e40d/tokio/src/runtime/task/raw.rs | 81 | 140 |
tokio-rs/tokio:tokio/src/runtime/task/raw.rs:4 | }
}
impl Copy for RawTask {}
unsafe fn poll<T: Future, S: Schedule>(ptr: NonNull<Header>) {
let harness = Harness::<T, S>::from_raw(ptr);
harness.poll();
}
unsafe fn dealloc<T: Future, S: Schedule>(ptr: NonNull<Header>) {
let harness = Harness::<T, S>::from_raw(ptr);
harness.dealloc();
}
unsafe fn t... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/raw.rs | MIT | 1be8e9dfb7b1140568ac10ac34f5f8171a89e40d | github | async-runtime | https://github.com/tokio-rs/tokio/blob/1be8e9dfb7b1140568ac10ac34f5f8171a89e40d/tokio/src/runtime/task/raw.rs | 121 | 165 |
tokio-rs/tokio:tokio/src/runtime/task/raw.rs:2 | dealloc: dealloc::<T, S>,
try_read_output: try_read_output::<T, S>,
try_set_join_waker: try_set_join_waker::<T, S>,
drop_join_handle_slow: drop_join_handle_slow::<T, S>,
remote_abort: remote_abort::<T, S>,
shutdown: shutdown::<T, S>,
}
}
impl RawTask {
pub(super) fn new<... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/raw.rs | MIT | 1bb4d2316232a77d048e8797ba04d796911ffe30 | github | async-runtime | https://github.com/tokio-rs/tokio/blob/1bb4d2316232a77d048e8797ba04d796911ffe30/tokio/src/runtime/task/raw.rs | 41 | 100 |
tokio-rs/tokio:tokio/src/runtime/task/raw.rs:3 | unsafe {
(vtable.dealloc)(self.ptr);
}
}
/// Safety: `dst` must be a `*mut Poll<super::Result<T::Output>>` where `T`
/// is the future stored by the task.
pub(super) unsafe fn try_read_output(self, dst: *mut (), waker: &Waker) {
let vtable = self.header().vtable;
(vt... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/raw.rs | MIT | 1bb4d2316232a77d048e8797ba04d796911ffe30 | github | async-runtime | https://github.com/tokio-rs/tokio/blob/1bb4d2316232a77d048e8797ba04d796911ffe30/tokio/src/runtime/task/raw.rs | 81 | 140 |
tokio-rs/tokio:tokio/src/runtime/task/raw.rs:4 | unsafe fn poll<T: Future, S: Schedule>(ptr: NonNull<Header>) {
let harness = Harness::<T, S>::from_raw(ptr);
harness.poll();
}
unsafe fn dealloc<T: Future, S: Schedule>(ptr: NonNull<Header>) {
let harness = Harness::<T, S>::from_raw(ptr);
harness.dealloc();
}
unsafe fn try_read_output<T: Future, S: Sc... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/raw.rs | MIT | 1bb4d2316232a77d048e8797ba04d796911ffe30 | github | async-runtime | https://github.com/tokio-rs/tokio/blob/1bb4d2316232a77d048e8797ba04d796911ffe30/tokio/src/runtime/task/raw.rs | 121 | 161 |
tokio-rs/tokio:tokio/src/runtime/task/raw.rs:1 | use crate::future::Future;
use crate::runtime::task::{Cell, Harness, Header, Schedule, State};
use std::ptr::NonNull;
use std::task::{Poll, Waker};
/// Raw task handle
pub(super) struct RawTask {
ptr: NonNull<Header>,
}
pub(super) struct Vtable {
/// Polls the future.
pub(super) poll: unsafe fn(NonNull<H... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/raw.rs | MIT | 03969cdae7674681d1b10926e6a56fbb8908dbb8 | github | async-runtime | https://github.com/tokio-rs/tokio/blob/03969cdae7674681d1b10926e6a56fbb8908dbb8/tokio/src/runtime/task/raw.rs | 1 | 60 |
tokio-rs/tokio:tokio/src/runtime/task/raw.rs:2 | }
}
impl RawTask {
pub(super) fn new<T, S>(task: T, scheduler: S) -> RawTask
where
T: Future,
S: Schedule,
{
let ptr = Box::into_raw(Cell::<_, S>::new(task, scheduler, State::new()));
let ptr = unsafe { NonNull::new_unchecked(ptr as *mut Header) };
RawTask { ptr }
... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/raw.rs | MIT | 03969cdae7674681d1b10926e6a56fbb8908dbb8 | github | async-runtime | https://github.com/tokio-rs/tokio/blob/03969cdae7674681d1b10926e6a56fbb8908dbb8/tokio/src/runtime/task/raw.rs | 41 | 100 |
tokio-rs/tokio:tokio/src/runtime/task/raw.rs:3 | /// is the future stored by the task.
pub(super) unsafe fn try_read_output(self, dst: *mut (), waker: &Waker) {
let vtable = self.header().vtable;
(vtable.try_read_output)(self.ptr, dst, waker);
}
pub(super) fn drop_join_handle_slow(self) {
let vtable = self.header().vtable;
... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/raw.rs | MIT | 03969cdae7674681d1b10926e6a56fbb8908dbb8 | github | async-runtime | https://github.com/tokio-rs/tokio/blob/03969cdae7674681d1b10926e6a56fbb8908dbb8/tokio/src/runtime/task/raw.rs | 81 | 140 |
tokio-rs/tokio:tokio/src/runtime/task/raw.rs:4 | unsafe fn try_read_output<T: Future, S: Schedule>(
ptr: NonNull<Header>,
dst: *mut (),
waker: &Waker,
) {
let out = &mut *(dst as *mut Poll<super::Result<T::Output>>);
let harness = Harness::<T, S>::from_raw(ptr);
harness.try_read_output(out, waker);
}
unsafe fn drop_join_handle_slow<T: Future... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/raw.rs | MIT | 03969cdae7674681d1b10926e6a56fbb8908dbb8 | github | async-runtime | https://github.com/tokio-rs/tokio/blob/03969cdae7674681d1b10926e6a56fbb8908dbb8/tokio/src/runtime/task/raw.rs | 121 | 145 |
tokio-rs/tokio:tokio/src/runtime/task/raw.rs:1 | use crate::future::Future;
use crate::runtime::task::{Cell, Harness, Header, Schedule, State};
use std::ptr::NonNull;
use std::task::{Poll, Waker};
/// Raw task handle
pub(super) struct RawTask {
ptr: NonNull<Header>,
}
pub(super) struct Vtable {
/// Poll the future
pub(super) poll: unsafe fn(NonNull<Hea... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/raw.rs | MIT | 2087f3e0ebb08d633d59c5f964b3901e68b3c038 | github | async-runtime | https://github.com/tokio-rs/tokio/blob/2087f3e0ebb08d633d59c5f964b3901e68b3c038/tokio/src/runtime/task/raw.rs | 1 | 60 |
tokio-rs/tokio:tokio/src/runtime/task/raw.rs:1 | use crate::runtime::task::{Cell, Harness, Header, Schedule, State};
use std::future::Future;
use std::ptr::NonNull;
use std::task::{Poll, Waker};
/// Raw task handle
pub(super) struct RawTask {
ptr: NonNull<Header>,
}
pub(super) struct Vtable {
/// Poll the future
pub(super) poll: unsafe fn(NonNull<Heade... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/raw.rs | MIT | e3851089207f6617dfcc0c7a73013eb819a0bfe0 | github | async-runtime | https://github.com/tokio-rs/tokio/blob/e3851089207f6617dfcc0c7a73013eb819a0bfe0/tokio/src/runtime/task/raw.rs | 1 | 60 |
tokio-rs/tokio:tokio/src/runtime/task/raw.rs:2 | }
}
impl RawTask {
pub(super) fn new<T, S>(task: T) -> RawTask
where
T: Future,
S: Schedule,
{
let ptr = Box::into_raw(Cell::<_, S>::new(task, State::new()));
let ptr = unsafe { NonNull::new_unchecked(ptr as *mut Header) };
RawTask { ptr }
}
pub(super) unsa... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/raw.rs | MIT | e3851089207f6617dfcc0c7a73013eb819a0bfe0 | github | async-runtime | https://github.com/tokio-rs/tokio/blob/e3851089207f6617dfcc0c7a73013eb819a0bfe0/tokio/src/runtime/task/raw.rs | 41 | 100 |
tokio-rs/tokio:tokio/src/runtime/task/raw.rs:1 | use crate::future::Future;
use crate::runtime::task::{Cell, Harness, Header, Schedule, State};
use std::ptr::NonNull;
use std::task::{Poll, Waker};
/// Raw task handle
pub(super) struct RawTask {
ptr: NonNull<Header>,
}
pub(super) struct Vtable {
/// Poll the future
pub(super) poll: unsafe fn(NonNull<Hea... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/raw.rs | MIT | e7d74b3119178b9b86f7b547774b6b121de2239a | github | async-runtime | https://github.com/tokio-rs/tokio/blob/e7d74b3119178b9b86f7b547774b6b121de2239a/tokio/src/runtime/task/raw.rs | 1 | 60 |
tokio-rs/tokio:tokio/src/runtime/task/raw.rs:2 | pub(super) fn new<T, S>(task: T) -> RawTask
where
T: Future,
S: Schedule,
{
let ptr = Box::into_raw(Cell::<_, S>::new(task, State::new()));
let ptr = unsafe { NonNull::new_unchecked(ptr as *mut Header) };
RawTask { ptr }
}
pub(super) unsafe fn from_raw(ptr: NonN... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/raw.rs | MIT | e7d74b3119178b9b86f7b547774b6b121de2239a | github | async-runtime | https://github.com/tokio-rs/tokio/blob/e7d74b3119178b9b86f7b547774b6b121de2239a/tokio/src/runtime/task/raw.rs | 41 | 100 |
tokio-rs/tokio:tokio/src/runtime/task/raw.rs:3 | }
pub(super) fn drop_join_handle_slow(self) {
let vtable = self.header().vtable;
unsafe { (vtable.drop_join_handle_slow)(self.ptr) }
}
pub(super) fn shutdown(self) {
let vtable = self.header().vtable;
unsafe { (vtable.shutdown)(self.ptr) }
}
}
impl Clone for RawTask {
... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/raw.rs | MIT | e7d74b3119178b9b86f7b547774b6b121de2239a | github | async-runtime | https://github.com/tokio-rs/tokio/blob/e7d74b3119178b9b86f7b547774b6b121de2239a/tokio/src/runtime/task/raw.rs | 81 | 131 |
tokio-rs/tokio:tokio/src/runtime/task/raw.rs:4 | }
unsafe fn drop_join_handle_slow<T: Future, S: Schedule>(ptr: NonNull<Header>) {
let harness = Harness::<T, S>::from_raw(ptr);
harness.drop_join_handle_slow()
}
unsafe fn shutdown<T: Future, S: Schedule>(ptr: NonNull<Header>) {
let harness = Harness::<T, S>::from_raw(ptr);
harness.shutdown()
} | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/raw.rs | MIT | e7d74b3119178b9b86f7b547774b6b121de2239a | github | async-runtime | https://github.com/tokio-rs/tokio/blob/e7d74b3119178b9b86f7b547774b6b121de2239a/tokio/src/runtime/task/raw.rs | 121 | 131 |
tokio-rs/tokio:tokio/src/runtime/task/raw.rs:1 | use crate::runtime::task::{Cell, Harness, Header, Schedule, State};
use std::future::Future;
use std::ptr::NonNull;
use std::task::{Poll, Waker};
/// Raw task handle
pub(super) struct RawTask {
ptr: NonNull<Header>,
}
pub(super) struct Vtable {
/// Poll the future
pub(super) poll: unsafe fn(NonNull<Heade... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/raw.rs | MIT | a78b1c65ccfb9692ca5d3ed8ddde934f40091d83 | github | async-runtime | https://github.com/tokio-rs/tokio/blob/a78b1c65ccfb9692ca5d3ed8ddde934f40091d83/tokio/src/runtime/task/raw.rs | 1 | 60 |
tokio-rs/tokio:tokio/src/runtime/task/stack.rs:1 | use crate::loom::sync::atomic::AtomicPtr;
use crate::runtime::task::{Header, Task};
use std::marker::PhantomData;
use std::ptr::{self, NonNull};
use std::sync::atomic::Ordering::{Acquire, Relaxed, Release};
/// Concurrent stack of tasks, used to pass ownership of a task from one worker
/// to another.
pub(crate) stru... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/stack.rs | MIT | 1cb1e291c10adf6b4e530cb1475b95ba10fa615f | github | async-runtime | https://github.com/tokio-rs/tokio/blob/1cb1e291c10adf6b4e530cb1475b95ba10fa615f/tokio/src/runtime/task/stack.rs | 1 | 60 |
tokio-rs/tokio:tokio/src/runtime/task/stack.rs:2 | .compare_exchange(curr, task.as_ptr() as *mut _, Release, Relaxed);
match res {
Ok(_) => return,
Err(actual) => {
curr = actual;
}
}
}
}
pub(crate) fn drain(&self) -> impl Iterator<Item = Task<T>> {
str... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/stack.rs | MIT | 1cb1e291c10adf6b4e530cb1475b95ba10fa615f | github | async-runtime | https://github.com/tokio-rs/tokio/blob/1cb1e291c10adf6b4e530cb1475b95ba10fa615f/tokio/src/runtime/task/stack.rs | 41 | 83 |
tokio-rs/tokio:tokio/src/runtime/task/stack.rs:1 | use crate::loom::sync::atomic::AtomicPtr;
use crate::runtime::task::{Header, Task};
use std::marker::PhantomData;
use std::ptr::{self, NonNull};
use std::sync::atomic::Ordering::{Acquire, Relaxed, Release};
/// Concurrent stack of tasks, used to pass ownership of a task from one worker
/// to another.
pub(crate) stru... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/stack.rs | MIT | a78b1c65ccfb9692ca5d3ed8ddde934f40091d83 | github | async-runtime | https://github.com/tokio-rs/tokio/blob/a78b1c65ccfb9692ca5d3ed8ddde934f40091d83/tokio/src/runtime/task/stack.rs | 1 | 60 |
tokio-rs/tokio:tokio/src/runtime/task/stack.rs:2 | match res {
Ok(_) => return,
Err(actual) => {
curr = actual;
}
}
}
}
pub(crate) fn drain(&self) -> impl Iterator<Item = Task<T>> {
struct Iter<T: 'static>(Option<NonNull<Header>>, PhantomData<T>);
impl<T: '... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/stack.rs | MIT | a78b1c65ccfb9692ca5d3ed8ddde934f40091d83 | github | async-runtime | https://github.com/tokio-rs/tokio/blob/a78b1c65ccfb9692ca5d3ed8ddde934f40091d83/tokio/src/runtime/task/stack.rs | 41 | 81 |
tokio-rs/tokio:tokio/src/runtime/task/state.rs:1 | use crate::loom::sync::atomic::AtomicUsize;
use std::fmt;
use std::sync::atomic::Ordering::{AcqRel, Acquire, Release};
pub(super) struct State {
val: AtomicUsize,
}
/// Current state value.
#[derive(Copy, Clone)]
pub(super) struct Snapshot(usize);
type UpdateResult = Result<Snapshot, Snapshot>;
/// The task is... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/state.rs | MIT | c6d58ce7e7bf4a6e7e6efc1ffeb42daa3a627c17 | github | async-runtime | https://github.com/tokio-rs/tokio/blob/c6d58ce7e7bf4a6e7e6efc1ffeb42daa3a627c17/tokio/src/runtime/task/state.rs | 1 | 60 |
tokio-rs/tokio:tokio/src/runtime/task/state.rs:2 | /// Bits used by the ref count portion of the state.
const REF_COUNT_MASK: usize = !STATE_MASK;
/// Number of positions to shift the ref count.
const REF_COUNT_SHIFT: usize = REF_COUNT_MASK.count_zeros() as usize;
/// One ref count.
const REF_ONE: usize = 1 << REF_COUNT_SHIFT;
/// State a task is initialized with.
/... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/state.rs | MIT | c6d58ce7e7bf4a6e7e6efc1ffeb42daa3a627c17 | github | async-runtime | https://github.com/tokio-rs/tokio/blob/c6d58ce7e7bf4a6e7e6efc1ffeb42daa3a627c17/tokio/src/runtime/task/state.rs | 41 | 100 |
tokio-rs/tokio:tokio/src/runtime/task/state.rs:3 | DoNothing,
Submit,
Dealloc,
}
#[must_use]
pub(crate) enum TransitionToNotifiedByRef {
DoNothing,
Submit,
}
#[must_use]
pub(super) struct TransitionToJoinHandleDrop {
pub(super) drop_waker: bool,
pub(super) drop_output: bool,
}
/// All transitions are performed via RMW operations. This establi... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/state.rs | MIT | c6d58ce7e7bf4a6e7e6efc1ffeb42daa3a627c17 | github | async-runtime | https://github.com/tokio-rs/tokio/blob/c6d58ce7e7bf4a6e7e6efc1ffeb42daa3a627c17/tokio/src/runtime/task/state.rs | 81 | 140 |
tokio-rs/tokio:tokio/src/runtime/task/state.rs:4 | if !next.is_idle() {
// This happens if the task is either currently running or if it
// has already completed, e.g. if it was cancelled during
// shutdown. Consume the ref-count and return.
next.ref_dec();
if next.ref_count() == 0 {
... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/state.rs | MIT | c6d58ce7e7bf4a6e7e6efc1ffeb42daa3a627c17 | github | async-runtime | https://github.com/tokio-rs/tokio/blob/c6d58ce7e7bf4a6e7e6efc1ffeb42daa3a627c17/tokio/src/runtime/task/state.rs | 121 | 180 |
tokio-rs/tokio:tokio/src/runtime/task/state.rs:5 | next.unset_running();
if !next.is_notified() {
// Polling the future consumes the ref-count of the Notified.
next.ref_dec();
if next.ref_count() == 0 {
action = TransitionToIdle::OkDealloc;
} else {
acti... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/state.rs | MIT | c6d58ce7e7bf4a6e7e6efc1ffeb42daa3a627c17 | github | async-runtime | https://github.com/tokio-rs/tokio/blob/c6d58ce7e7bf4a6e7e6efc1ffeb42daa3a627c17/tokio/src/runtime/task/state.rs | 161 | 220 |
tokio-rs/tokio:tokio/src/runtime/task/state.rs:6 | prev.ref_count() >= count,
"current: {}, sub: {}",
prev.ref_count(),
count
);
prev.ref_count() == count
}
/// Transitions the state to `NOTIFIED`.
///
/// If no task needs to be submitted, a ref-count is consumed.
///
/// If a task needs to be... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/state.rs | MIT | c6d58ce7e7bf4a6e7e6efc1ffeb42daa3a627c17 | github | async-runtime | https://github.com/tokio-rs/tokio/blob/c6d58ce7e7bf4a6e7e6efc1ffeb42daa3a627c17/tokio/src/runtime/task/state.rs | 201 | 260 |
tokio-rs/tokio:tokio/src/runtime/task/state.rs:7 | // We create a new notified that we can submit. The caller
// retains ownership of the ref-count they passed in.
snapshot.set_notified();
snapshot.ref_inc();
action = TransitionToNotifiedByVal::Submit;
}
(action, Some(snapshot))
... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/state.rs | MIT | c6d58ce7e7bf4a6e7e6efc1ffeb42daa3a627c17 | github | async-runtime | https://github.com/tokio-rs/tokio/blob/c6d58ce7e7bf4a6e7e6efc1ffeb42daa3a627c17/tokio/src/runtime/task/state.rs | 241 | 300 |
tokio-rs/tokio:tokio/src/runtime/task/state.rs:8 | /// count.
///
/// Returns `true` if the notified bit was transitioned from `0` to `1`;
/// otherwise `false.`
#[cfg(all(
tokio_unstable,
feature = "taskdump",
feature = "rt",
target_os = "linux",
any(target_arch = "aarch64", target_arch = "x86", target_arch = "x8... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/state.rs | MIT | c6d58ce7e7bf4a6e7e6efc1ffeb42daa3a627c17 | github | async-runtime | https://github.com/tokio-rs/tokio/blob/c6d58ce7e7bf4a6e7e6efc1ffeb42daa3a627c17/tokio/src/runtime/task/state.rs | 281 | 340 |
tokio-rs/tokio:tokio/src/runtime/task/state.rs:9 | snapshot.set_notified();
snapshot.set_cancelled();
(false, Some(snapshot))
} else {
// The task is idle. We set the cancelled and notified bits and
// submit a notification if the notified bit was not already
// set.
... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/state.rs | MIT | c6d58ce7e7bf4a6e7e6efc1ffeb42daa3a627c17 | github | async-runtime | https://github.com/tokio-rs/tokio/blob/c6d58ce7e7bf4a6e7e6efc1ffeb42daa3a627c17/tokio/src/runtime/task/state.rs | 321 | 380 |
tokio-rs/tokio:tokio/src/runtime/task/state.rs:10 | }
/// Optimistically tries to swap the state assuming the join handle is
/// __immediately__ dropped on spawn.
pub(super) fn drop_join_handle_fast(&self) -> Result<(), ()> {
use std::sync::atomic::Ordering::Relaxed;
// Relaxed is acceptable as if this function is called and succeeds,
... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/state.rs | MIT | c6d58ce7e7bf4a6e7e6efc1ffeb42daa3a627c17 | github | async-runtime | https://github.com/tokio-rs/tokio/blob/c6d58ce7e7bf4a6e7e6efc1ffeb42daa3a627c17/tokio/src/runtime/task/state.rs | 361 | 420 |
tokio-rs/tokio:tokio/src/runtime/task/state.rs:11 | if !snapshot.is_complete() {
// If `COMPLETE` is unset we also unset `JOIN_WAKER` to give the
// `JoinHandle` exclusive access to the waker following rule 6 in task/mod.rs.
// The `JoinHandle` will drop the waker if it has exclusive access
// to drop it.
... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/state.rs | MIT | c6d58ce7e7bf4a6e7e6efc1ffeb42daa3a627c17 | github | async-runtime | https://github.com/tokio-rs/tokio/blob/c6d58ce7e7bf4a6e7e6efc1ffeb42daa3a627c17/tokio/src/runtime/task/state.rs | 401 | 460 |
tokio-rs/tokio:tokio/src/runtime/task/state.rs:12 | let mut next = curr;
next.set_join_waker();
Some(next)
})
}
/// Unsets the `JOIN_WAKER` bit.
///
/// Returns `Ok` has been unset, `Err` otherwise. This operation fails if
/// the task has completed.
pub(super) fn unset_waker(&self) -> UpdateResult {
self... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/state.rs | MIT | c6d58ce7e7bf4a6e7e6efc1ffeb42daa3a627c17 | github | async-runtime | https://github.com/tokio-rs/tokio/blob/c6d58ce7e7bf4a6e7e6efc1ffeb42daa3a627c17/tokio/src/runtime/task/state.rs | 441 | 500 |
tokio-rs/tokio:tokio/src/runtime/task/state.rs:13 | pub(super) fn ref_inc(&self) {
use std::process;
use std::sync::atomic::Ordering::Relaxed;
// Using a relaxed ordering is alright here, as knowledge of the
// original reference prevents other threads from erroneously deleting
// the object.
//
// As explained in... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/state.rs | MIT | c6d58ce7e7bf4a6e7e6efc1ffeb42daa3a627c17 | github | async-runtime | https://github.com/tokio-rs/tokio/blob/c6d58ce7e7bf4a6e7e6efc1ffeb42daa3a627c17/tokio/src/runtime/task/state.rs | 481 | 540 |
tokio-rs/tokio:tokio/src/runtime/task/state.rs:14 | {
let mut curr = self.load();
loop {
let (output, next) = f(curr);
let next = match next {
Some(next) => next,
None => return output,
};
let res = self.val.compare_exchange(curr.0, next.0, AcqRel, Acquire);
ma... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/state.rs | MIT | c6d58ce7e7bf4a6e7e6efc1ffeb42daa3a627c17 | github | async-runtime | https://github.com/tokio-rs/tokio/blob/c6d58ce7e7bf4a6e7e6efc1ffeb42daa3a627c17/tokio/src/runtime/task/state.rs | 521 | 580 |
tokio-rs/tokio:tokio/src/runtime/task/state.rs:15 | // ===== impl Snapshot =====
impl Snapshot {
/// Returns `true` if the task is in an idle state.
pub(super) fn is_idle(self) -> bool {
self.0 & (RUNNING | COMPLETE) == 0
}
/// Returns `true` if the task has been flagged as notified.
pub(super) fn is_notified(self) -> bool {
self.0 ... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/state.rs | MIT | c6d58ce7e7bf4a6e7e6efc1ffeb42daa3a627c17 | github | async-runtime | https://github.com/tokio-rs/tokio/blob/c6d58ce7e7bf4a6e7e6efc1ffeb42daa3a627c17/tokio/src/runtime/task/state.rs | 561 | 620 |
tokio-rs/tokio:tokio/src/runtime/task/state.rs:16 | }
/// Returns `true` if the task's future has completed execution.
pub(super) fn is_complete(self) -> bool {
self.0 & COMPLETE == COMPLETE
}
pub(super) fn is_join_interested(self) -> bool {
self.0 & JOIN_INTEREST == JOIN_INTEREST
}
fn unset_join_interested(&mut self) {
... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/state.rs | MIT | c6d58ce7e7bf4a6e7e6efc1ffeb42daa3a627c17 | github | async-runtime | https://github.com/tokio-rs/tokio/blob/c6d58ce7e7bf4a6e7e6efc1ffeb42daa3a627c17/tokio/src/runtime/task/state.rs | 601 | 660 |
tokio-rs/tokio:tokio/src/runtime/task/state.rs:17 | }
impl fmt::Debug for State {
fn fmt(&self, fmt: &mut fmt::Formatter<'_>) -> fmt::Result {
let snapshot = self.load();
snapshot.fmt(fmt)
}
}
impl fmt::Debug for Snapshot {
fn fmt(&self, fmt: &mut fmt::Formatter<'_>) -> fmt::Result {
fmt.debug_struct("Snapshot")
.field("... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/state.rs | MIT | c6d58ce7e7bf4a6e7e6efc1ffeb42daa3a627c17 | github | async-runtime | https://github.com/tokio-rs/tokio/blob/c6d58ce7e7bf4a6e7e6efc1ffeb42daa3a627c17/tokio/src/runtime/task/state.rs | 641 | 662 |
tokio-rs/tokio:tokio/src/runtime/task/state.rs:7 | // We create a new notified that we can submit. The caller
// retains ownership of the ref-count they passed in.
snapshot.set_notified();
snapshot.ref_inc();
action = TransitionToNotifiedByVal::Submit;
}
(action, Some(snapshot))
... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/state.rs | MIT | b9feac8d6841bc7933f3d9d508f4179800d4d579 | github | async-runtime | https://github.com/tokio-rs/tokio/blob/b9feac8d6841bc7933f3d9d508f4179800d4d579/tokio/src/runtime/task/state.rs | 241 | 300 |
tokio-rs/tokio:tokio/src/runtime/task/state.rs:8 | /// count.
///
/// Returns `true` if the notified bit was transitioned from `0` to `1`;
/// otherwise `false.`
#[cfg(all(
tokio_unstable,
tokio_taskdump,
feature = "rt",
target_os = "linux",
any(target_arch = "aarch64", target_arch = "x86", target_arch = "x86_64")... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/state.rs | MIT | b9feac8d6841bc7933f3d9d508f4179800d4d579 | github | async-runtime | https://github.com/tokio-rs/tokio/blob/b9feac8d6841bc7933f3d9d508f4179800d4d579/tokio/src/runtime/task/state.rs | 281 | 340 |
tokio-rs/tokio:tokio/src/runtime/task/state.rs:6 | prev.ref_count() >= count,
"current: {}, sub: {}",
prev.ref_count(),
count
);
prev.ref_count() == count
}
/// Transitions the state to `NOTIFIED`.
///
/// If no task needs to be submitted, a ref-count is consumed.
///
/// If a task needs to be... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/state.rs | MIT | bd3e8577377a2b684b50fc0cb50d98f03ad09703 | github | async-runtime | https://github.com/tokio-rs/tokio/blob/bd3e8577377a2b684b50fc0cb50d98f03ad09703/tokio/src/runtime/task/state.rs | 201 | 260 |
tokio-rs/tokio:tokio/src/runtime/task/state.rs:7 | // We create a new notified that we can submit. The caller
// retains ownership of the ref-count they passed in.
snapshot.set_notified();
snapshot.ref_inc();
action = TransitionToNotifiedByVal::Submit;
}
(action, Some(snapshot))
... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/state.rs | MIT | bd3e8577377a2b684b50fc0cb50d98f03ad09703 | github | async-runtime | https://github.com/tokio-rs/tokio/blob/bd3e8577377a2b684b50fc0cb50d98f03ad09703/tokio/src/runtime/task/state.rs | 241 | 300 |
tokio-rs/tokio:tokio/src/runtime/task/state.rs:8 | tokio_taskdump,
feature = "rt",
target_os = "linux",
any(target_arch = "aarch64", target_arch = "x86", target_arch = "x86_64")
))]
pub(super) fn transition_to_notified_for_tracing(&self) -> bool {
self.fetch_update_action(|mut snapshot| {
if snapshot.is_notified() {
... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/state.rs | MIT | bd3e8577377a2b684b50fc0cb50d98f03ad09703 | github | async-runtime | https://github.com/tokio-rs/tokio/blob/bd3e8577377a2b684b50fc0cb50d98f03ad09703/tokio/src/runtime/task/state.rs | 281 | 340 |
tokio-rs/tokio:tokio/src/runtime/task/state.rs:9 | // set.
snapshot.set_cancelled();
if !snapshot.is_notified() {
snapshot.set_notified();
snapshot.ref_inc();
(true, Some(snapshot))
} else {
(false, Some(snapshot))
}
... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/state.rs | MIT | bd3e8577377a2b684b50fc0cb50d98f03ad09703 | github | async-runtime | https://github.com/tokio-rs/tokio/blob/bd3e8577377a2b684b50fc0cb50d98f03ad09703/tokio/src/runtime/task/state.rs | 321 | 380 |
tokio-rs/tokio:tokio/src/runtime/task/state.rs:10 | // Relaxed is acceptable as if this function is called and succeeds,
// then nothing has been done w/ the join handle.
//
// The moment the join handle is used (polled), the `JOIN_WAKER` flag is
// set, at which point the CAS will fail.
//
// Given this, there is no risk ... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/state.rs | MIT | bd3e8577377a2b684b50fc0cb50d98f03ad09703 | github | async-runtime | https://github.com/tokio-rs/tokio/blob/bd3e8577377a2b684b50fc0cb50d98f03ad09703/tokio/src/runtime/task/state.rs | 361 | 420 |
tokio-rs/tokio:tokio/src/runtime/task/state.rs:11 | } else {
// If `COMPLETE` is set the task is completed so the `JoinHandle` is responsible
// for dropping the output.
transition.drop_output = true;
}
if !snapshot.is_join_waker_set() {
// If the `JOIN_WAKER` bit is unset and the `... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/state.rs | MIT | bd3e8577377a2b684b50fc0cb50d98f03ad09703 | github | async-runtime | https://github.com/tokio-rs/tokio/blob/bd3e8577377a2b684b50fc0cb50d98f03ad09703/tokio/src/runtime/task/state.rs | 401 | 460 |
tokio-rs/tokio:tokio/src/runtime/task/state.rs:12 | /// Unsets the `JOIN_WAKER` bit.
///
/// Returns `Ok` has been unset, `Err` otherwise. This operation fails if
/// the task has completed.
pub(super) fn unset_waker(&self) -> UpdateResult {
self.fetch_update(|curr| {
assert!(curr.is_join_interested());
if curr.is_complet... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/state.rs | MIT | bd3e8577377a2b684b50fc0cb50d98f03ad09703 | github | async-runtime | https://github.com/tokio-rs/tokio/blob/bd3e8577377a2b684b50fc0cb50d98f03ad09703/tokio/src/runtime/task/state.rs | 441 | 500 |
tokio-rs/tokio:tokio/src/runtime/task/state.rs:13 | // the object.
//
// As explained in the [Boost documentation][1], Increasing the
// reference counter can always be done with memory_order_relaxed: New
// references to an object can only be formed from an existing
// reference, and passing an existing reference from one thread ... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/state.rs | MIT | bd3e8577377a2b684b50fc0cb50d98f03ad09703 | github | async-runtime | https://github.com/tokio-rs/tokio/blob/bd3e8577377a2b684b50fc0cb50d98f03ad09703/tokio/src/runtime/task/state.rs | 481 | 540 |
tokio-rs/tokio:tokio/src/runtime/task/state.rs:14 | Some(next) => next,
None => return output,
};
let res = self.val.compare_exchange(curr.0, next.0, AcqRel, Acquire);
match res {
Ok(_) => return output,
Err(actual) => curr = Snapshot(actual),
}
}
}
fn fetc... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/state.rs | MIT | bd3e8577377a2b684b50fc0cb50d98f03ad09703 | github | async-runtime | https://github.com/tokio-rs/tokio/blob/bd3e8577377a2b684b50fc0cb50d98f03ad09703/tokio/src/runtime/task/state.rs | 521 | 580 |
tokio-rs/tokio:tokio/src/runtime/task/state.rs:15 | self.0 & (RUNNING | COMPLETE) == 0
}
/// Returns `true` if the task has been flagged as notified.
pub(super) fn is_notified(self) -> bool {
self.0 & NOTIFIED == NOTIFIED
}
fn unset_notified(&mut self) {
self.0 &= !NOTIFIED;
}
fn set_notified(&mut self) {
self.0 |= ... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/state.rs | MIT | bd3e8577377a2b684b50fc0cb50d98f03ad09703 | github | async-runtime | https://github.com/tokio-rs/tokio/blob/bd3e8577377a2b684b50fc0cb50d98f03ad09703/tokio/src/runtime/task/state.rs | 561 | 620 |
tokio-rs/tokio:tokio/src/runtime/task/state.rs:16 | pub(super) fn is_join_interested(self) -> bool {
self.0 & JOIN_INTEREST == JOIN_INTEREST
}
fn unset_join_interested(&mut self) {
self.0 &= !JOIN_INTEREST;
}
pub(super) fn is_join_waker_set(self) -> bool {
self.0 & JOIN_WAKER == JOIN_WAKER
}
fn set_join_waker(&mut self)... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/state.rs | MIT | bd3e8577377a2b684b50fc0cb50d98f03ad09703 | github | async-runtime | https://github.com/tokio-rs/tokio/blob/bd3e8577377a2b684b50fc0cb50d98f03ad09703/tokio/src/runtime/task/state.rs | 601 | 656 |
tokio-rs/tokio:tokio/src/runtime/task/state.rs:17 | }
}
impl fmt::Debug for Snapshot {
fn fmt(&self, fmt: &mut fmt::Formatter<'_>) -> fmt::Result {
fmt.debug_struct("Snapshot")
.field("is_running", &self.is_running())
.field("is_complete", &self.is_complete())
.field("is_notified", &self.is_notified())
.field(... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/state.rs | MIT | bd3e8577377a2b684b50fc0cb50d98f03ad09703 | github | async-runtime | https://github.com/tokio-rs/tokio/blob/bd3e8577377a2b684b50fc0cb50d98f03ad09703/tokio/src/runtime/task/state.rs | 641 | 656 |
tokio-rs/tokio:tokio/src/runtime/task/state.rs:11 | } else {
// If `COMPLETE` is set the task is completed so the `JoinHandle` is responsible
// for dropping the output.
transition.drop_output = true;
}
if !snapshot.is_join_waker_set() {
// If the `JOIN_WAKER` bit is unset and the `... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/state.rs | MIT | 970d880ceb473b222a9ddd4b35b934ca68cecb4a | github | async-runtime | https://github.com/tokio-rs/tokio/blob/970d880ceb473b222a9ddd4b35b934ca68cecb4a/tokio/src/runtime/task/state.rs | 401 | 460 |
tokio-rs/tokio:tokio/src/runtime/task/state.rs:12 | /// Unsets the `JOIN_WAKER` bit.
///
/// Returns `Ok` has been unset, `Err` otherwise. This operation fails if
/// the task has completed.
pub(super) fn unset_waker(&self) -> UpdateResult {
self.fetch_update(|curr| {
assert!(curr.is_join_interested());
assert!(curr.is_joi... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/state.rs | MIT | 970d880ceb473b222a9ddd4b35b934ca68cecb4a | github | async-runtime | https://github.com/tokio-rs/tokio/blob/970d880ceb473b222a9ddd4b35b934ca68cecb4a/tokio/src/runtime/task/state.rs | 441 | 500 |
tokio-rs/tokio:tokio/src/runtime/task/state.rs:13 | // reference counter can always be done with memory_order_relaxed: New
// references to an object can only be formed from an existing
// reference, and passing an existing reference from one thread to
// another must already provide any required synchronization.
//
// [1]: (www.b... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/state.rs | MIT | 970d880ceb473b222a9ddd4b35b934ca68cecb4a | github | async-runtime | https://github.com/tokio-rs/tokio/blob/970d880ceb473b222a9ddd4b35b934ca68cecb4a/tokio/src/runtime/task/state.rs | 481 | 540 |
tokio-rs/tokio:tokio/src/runtime/task/state.rs:14 | let res = self.val.compare_exchange(curr.0, next.0, AcqRel, Acquire);
match res {
Ok(_) => return output,
Err(actual) => curr = Snapshot(actual),
}
}
}
fn fetch_update<F>(&self, mut f: F) -> Result<Snapshot, Snapshot>
where
F: FnMut(S... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/state.rs | MIT | 970d880ceb473b222a9ddd4b35b934ca68cecb4a | github | async-runtime | https://github.com/tokio-rs/tokio/blob/970d880ceb473b222a9ddd4b35b934ca68cecb4a/tokio/src/runtime/task/state.rs | 521 | 580 |
tokio-rs/tokio:tokio/src/runtime/task/state.rs:15 | /// Returns `true` if the task has been flagged as notified.
pub(super) fn is_notified(self) -> bool {
self.0 & NOTIFIED == NOTIFIED
}
fn unset_notified(&mut self) {
self.0 &= !NOTIFIED;
}
fn set_notified(&mut self) {
self.0 |= NOTIFIED;
}
pub(super) fn is_running(... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/state.rs | MIT | 970d880ceb473b222a9ddd4b35b934ca68cecb4a | github | async-runtime | https://github.com/tokio-rs/tokio/blob/970d880ceb473b222a9ddd4b35b934ca68cecb4a/tokio/src/runtime/task/state.rs | 561 | 620 |
tokio-rs/tokio:tokio/src/runtime/task/state.rs:16 | }
fn unset_join_interested(&mut self) {
self.0 &= !JOIN_INTEREST;
}
pub(super) fn is_join_waker_set(self) -> bool {
self.0 & JOIN_WAKER == JOIN_WAKER
}
fn set_join_waker(&mut self) {
self.0 |= JOIN_WAKER;
}
fn unset_join_waker(&mut self) {
self.0 &= !JOIN_... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/state.rs | MIT | 970d880ceb473b222a9ddd4b35b934ca68cecb4a | github | async-runtime | https://github.com/tokio-rs/tokio/blob/970d880ceb473b222a9ddd4b35b934ca68cecb4a/tokio/src/runtime/task/state.rs | 601 | 653 |
tokio-rs/tokio:tokio/src/runtime/task/state.rs:17 | impl fmt::Debug for Snapshot {
fn fmt(&self, fmt: &mut fmt::Formatter<'_>) -> fmt::Result {
fmt.debug_struct("Snapshot")
.field("is_running", &self.is_running())
.field("is_complete", &self.is_complete())
.field("is_notified", &self.is_notified())
.field("is_c... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/state.rs | MIT | 970d880ceb473b222a9ddd4b35b934ca68cecb4a | github | async-runtime | https://github.com/tokio-rs/tokio/blob/970d880ceb473b222a9ddd4b35b934ca68cecb4a/tokio/src/runtime/task/state.rs | 641 | 653 |
tokio-rs/tokio:tokio/src/runtime/task/state.rs:2 | /// Bits used by the ref count portion of the state.
const REF_COUNT_MASK: usize = !STATE_MASK;
/// Number of positions to shift the ref count.
const REF_COUNT_SHIFT: usize = REF_COUNT_MASK.count_zeros() as usize;
/// One ref count.
const REF_ONE: usize = 1 << REF_COUNT_SHIFT;
/// State a task is initialized with.
/... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/state.rs | MIT | daa89017dad7cecb769d3145c4368ae491a4ac67 | github | async-runtime | https://github.com/tokio-rs/tokio/blob/daa89017dad7cecb769d3145c4368ae491a4ac67/tokio/src/runtime/task/state.rs | 41 | 100 |
tokio-rs/tokio:tokio/src/runtime/task/state.rs:3 | DoNothing,
Submit,
Dealloc,
}
#[must_use]
pub(crate) enum TransitionToNotifiedByRef {
DoNothing,
Submit,
}
/// All transitions are performed via RMW operations. This establishes an
/// unambiguous modification order.
impl State {
/// Returns a task's initial state.
pub(super) fn new() -> State... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/state.rs | MIT | daa89017dad7cecb769d3145c4368ae491a4ac67 | github | async-runtime | https://github.com/tokio-rs/tokio/blob/daa89017dad7cecb769d3145c4368ae491a4ac67/tokio/src/runtime/task/state.rs | 81 | 140 |
tokio-rs/tokio:tokio/src/runtime/task/state.rs:4 | if next.ref_count() == 0 {
action = TransitionToRunning::Dealloc;
} else {
action = TransitionToRunning::Failed;
}
} else {
// We are able to lock the RUNNING bit.
next.set_running();
next... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/state.rs | MIT | daa89017dad7cecb769d3145c4368ae491a4ac67 | github | async-runtime | https://github.com/tokio-rs/tokio/blob/daa89017dad7cecb769d3145c4368ae491a4ac67/tokio/src/runtime/task/state.rs | 121 | 180 |
tokio-rs/tokio:tokio/src/runtime/task/state.rs:5 | action = TransitionToIdle::OkDealloc;
} else {
action = TransitionToIdle::Ok;
}
} else {
// The caller will schedule a new notification, so we create a
// new ref-count for the notification. Our own ref-count is kept
... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/state.rs | MIT | daa89017dad7cecb769d3145c4368ae491a4ac67 | github | async-runtime | https://github.com/tokio-rs/tokio/blob/daa89017dad7cecb769d3145c4368ae491a4ac67/tokio/src/runtime/task/state.rs | 161 | 220 |
tokio-rs/tokio:tokio/src/runtime/task/state.rs:6 | }
/// Transitions the state to `NOTIFIED`.
///
/// If no task needs to be submitted, a ref-count is consumed.
///
/// If a task needs to be submitted, the ref-count is incremented for the
/// new Notified.
pub(super) fn transition_to_notified_by_val(&self) -> TransitionToNotifiedByVal {
... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/state.rs | MIT | daa89017dad7cecb769d3145c4368ae491a4ac67 | github | async-runtime | https://github.com/tokio-rs/tokio/blob/daa89017dad7cecb769d3145c4368ae491a4ac67/tokio/src/runtime/task/state.rs | 201 | 260 |
tokio-rs/tokio:tokio/src/runtime/task/state.rs:7 | (action, Some(snapshot))
})
}
/// Transitions the state to `NOTIFIED`.
pub(super) fn transition_to_notified_by_ref(&self) -> TransitionToNotifiedByRef {
self.fetch_update_action(|mut snapshot| {
if snapshot.is_complete() || snapshot.is_notified() {
// There is no... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/state.rs | MIT | daa89017dad7cecb769d3145c4368ae491a4ac67 | github | async-runtime | https://github.com/tokio-rs/tokio/blob/daa89017dad7cecb769d3145c4368ae491a4ac67/tokio/src/runtime/task/state.rs | 241 | 300 |
tokio-rs/tokio:tokio/src/runtime/task/state.rs:8 | self.fetch_update_action(|mut snapshot| {
if snapshot.is_notified() {
(false, None)
} else {
snapshot.set_notified();
snapshot.ref_inc();
(true, Some(snapshot))
}
})
}
/// Sets the cancelled bit and tran... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/state.rs | MIT | daa89017dad7cecb769d3145c4368ae491a4ac67 | github | async-runtime | https://github.com/tokio-rs/tokio/blob/daa89017dad7cecb769d3145c4368ae491a4ac67/tokio/src/runtime/task/state.rs | 281 | 340 |
tokio-rs/tokio:tokio/src/runtime/task/state.rs:9 | } else {
(false, Some(snapshot))
}
}
})
}
/// Sets the `CANCELLED` bit and attempts to transition to `Running`.
///
/// Returns `true` if the transition to `Running` succeeded.
pub(super) fn transition_to_shutdown(&self) -> bool {
let ... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/state.rs | MIT | daa89017dad7cecb769d3145c4368ae491a4ac67 | github | async-runtime | https://github.com/tokio-rs/tokio/blob/daa89017dad7cecb769d3145c4368ae491a4ac67/tokio/src/runtime/task/state.rs | 321 | 380 |
tokio-rs/tokio:tokio/src/runtime/task/state.rs:10 | //
// Given this, there is no risk if this operation is reordered.
self.val
.compare_exchange_weak(
INITIAL_STATE,
(INITIAL_STATE - REF_ONE) & !JOIN_INTEREST,
Release,
Relaxed,
)
.map(|_| ())
... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/state.rs | MIT | daa89017dad7cecb769d3145c4368ae491a4ac67 | github | async-runtime | https://github.com/tokio-rs/tokio/blob/daa89017dad7cecb769d3145c4368ae491a4ac67/tokio/src/runtime/task/state.rs | 361 | 420 |
tokio-rs/tokio:tokio/src/runtime/task/state.rs:11 | if curr.is_complete() {
return None;
}
let mut next = curr;
next.set_join_waker();
Some(next)
})
}
/// Unsets the `JOIN_WAKER` bit.
///
/// Returns `Ok` has been unset, `Err` otherwise. This operation fails if
/// the task ha... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/state.rs | MIT | daa89017dad7cecb769d3145c4368ae491a4ac67 | github | async-runtime | https://github.com/tokio-rs/tokio/blob/daa89017dad7cecb769d3145c4368ae491a4ac67/tokio/src/runtime/task/state.rs | 401 | 460 |
tokio-rs/tokio:tokio/src/runtime/task/state.rs:12 | // As explained in the [Boost documentation][1], Increasing the
// reference counter can always be done with memory_order_relaxed: New
// references to an object can only be formed from an existing
// reference, and passing an existing reference from one thread to
// another must already... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/state.rs | MIT | daa89017dad7cecb769d3145c4368ae491a4ac67 | github | async-runtime | https://github.com/tokio-rs/tokio/blob/daa89017dad7cecb769d3145c4368ae491a4ac67/tokio/src/runtime/task/state.rs | 441 | 500 |
tokio-rs/tokio:tokio/src/runtime/task/state.rs:13 | };
let res = self.val.compare_exchange(curr.0, next.0, AcqRel, Acquire);
match res {
Ok(_) => return output,
Err(actual) => curr = Snapshot(actual),
}
}
}
fn fetch_update<F>(&self, mut f: F) -> Result<Snapshot, Snapshot>
where
... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/state.rs | MIT | daa89017dad7cecb769d3145c4368ae491a4ac67 | github | async-runtime | https://github.com/tokio-rs/tokio/blob/daa89017dad7cecb769d3145c4368ae491a4ac67/tokio/src/runtime/task/state.rs | 481 | 540 |
tokio-rs/tokio:tokio/src/runtime/task/state.rs:14 | /// Returns `true` if the task has been flagged as notified.
pub(super) fn is_notified(self) -> bool {
self.0 & NOTIFIED == NOTIFIED
}
fn unset_notified(&mut self) {
self.0 &= !NOTIFIED;
}
fn set_notified(&mut self) {
self.0 |= NOTIFIED;
}
pub(super) fn is_running(... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/state.rs | MIT | daa89017dad7cecb769d3145c4368ae491a4ac67 | github | async-runtime | https://github.com/tokio-rs/tokio/blob/daa89017dad7cecb769d3145c4368ae491a4ac67/tokio/src/runtime/task/state.rs | 521 | 580 |
tokio-rs/tokio:tokio/src/runtime/task/state.rs:15 | self.0 & JOIN_INTEREST == JOIN_INTEREST
}
fn unset_join_interested(&mut self) {
self.0 &= !JOIN_INTEREST;
}
pub(super) fn is_join_waker_set(self) -> bool {
self.0 & JOIN_WAKER == JOIN_WAKER
}
fn set_join_waker(&mut self) {
self.0 |= JOIN_WAKER;
}
fn unset_join... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/state.rs | MIT | daa89017dad7cecb769d3145c4368ae491a4ac67 | github | async-runtime | https://github.com/tokio-rs/tokio/blob/daa89017dad7cecb769d3145c4368ae491a4ac67/tokio/src/runtime/task/state.rs | 561 | 614 |
tokio-rs/tokio:tokio/src/runtime/task/state.rs:1 | use crate::loom::sync::atomic::AtomicUsize;
use std::fmt;
use std::sync::atomic::Ordering::{AcqRel, Acquire, Release};
use std::usize;
pub(super) struct State {
val: AtomicUsize,
}
/// Current state value.
#[derive(Copy, Clone)]
pub(super) struct Snapshot(usize);
type UpdateResult = Result<Snapshot, Snapshot>;
... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/state.rs | MIT | cb197def683277cb7ae1e00f13398b49ac225f75 | github | async-runtime | https://github.com/tokio-rs/tokio/blob/cb197def683277cb7ae1e00f13398b49ac225f75/tokio/src/runtime/task/state.rs | 1 | 60 |
tokio-rs/tokio:tokio/src/runtime/task/state.rs:2 | const STATE_MASK: usize = LIFECYCLE_MASK | NOTIFIED | JOIN_INTEREST | JOIN_WAKER | CANCELLED;
/// Bits used by the ref count portion of the state.
const REF_COUNT_MASK: usize = !STATE_MASK;
/// Number of positions to shift the ref count.
const REF_COUNT_SHIFT: usize = REF_COUNT_MASK.count_zeros() as usize;
/// One r... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/state.rs | MIT | cb197def683277cb7ae1e00f13398b49ac225f75 | github | async-runtime | https://github.com/tokio-rs/tokio/blob/cb197def683277cb7ae1e00f13398b49ac225f75/tokio/src/runtime/task/state.rs | 41 | 100 |
tokio-rs/tokio:tokio/src/runtime/task/state.rs:3 | pub(super) enum TransitionToNotifiedByVal {
DoNothing,
Submit,
Dealloc,
}
#[must_use]
pub(crate) enum TransitionToNotifiedByRef {
DoNothing,
Submit,
}
/// All transitions are performed via RMW operations. This establishes an
/// unambiguous modification order.
impl State {
/// Returns a task's... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/state.rs | MIT | cb197def683277cb7ae1e00f13398b49ac225f75 | github | async-runtime | https://github.com/tokio-rs/tokio/blob/cb197def683277cb7ae1e00f13398b49ac225f75/tokio/src/runtime/task/state.rs | 81 | 140 |
tokio-rs/tokio:tokio/src/runtime/task/state.rs:4 | next.ref_dec();
if next.ref_count() == 0 {
action = TransitionToRunning::Dealloc;
} else {
action = TransitionToRunning::Failed;
}
} else {
// We are able to lock the RUNNING bit.
next.set... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/state.rs | MIT | cb197def683277cb7ae1e00f13398b49ac225f75 | github | async-runtime | https://github.com/tokio-rs/tokio/blob/cb197def683277cb7ae1e00f13398b49ac225f75/tokio/src/runtime/task/state.rs | 121 | 180 |
tokio-rs/tokio:tokio/src/runtime/task/state.rs:5 | if next.ref_count() == 0 {
action = TransitionToIdle::OkDealloc;
} else {
action = TransitionToIdle::Ok;
}
} else {
// The caller will schedule a new notification, so we create a
// new ref-count for the ... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/state.rs | MIT | cb197def683277cb7ae1e00f13398b49ac225f75 | github | async-runtime | https://github.com/tokio-rs/tokio/blob/cb197def683277cb7ae1e00f13398b49ac225f75/tokio/src/runtime/task/state.rs | 161 | 220 |
tokio-rs/tokio:tokio/src/runtime/task/state.rs:6 | prev.ref_count() == count
}
/// Transitions the state to `NOTIFIED`.
///
/// If no task needs to be submitted, a ref-count is consumed.
///
/// If a task needs to be submitted, the ref-count is incremented for the
/// new Notified.
pub(super) fn transition_to_notified_by_val(&self) -> T... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/state.rs | MIT | cb197def683277cb7ae1e00f13398b49ac225f75 | github | async-runtime | https://github.com/tokio-rs/tokio/blob/cb197def683277cb7ae1e00f13398b49ac225f75/tokio/src/runtime/task/state.rs | 201 | 260 |
tokio-rs/tokio:tokio/src/runtime/task/state.rs:7 | }
(action, Some(snapshot))
})
}
/// Transitions the state to `NOTIFIED`.
pub(super) fn transition_to_notified_by_ref(&self) -> TransitionToNotifiedByRef {
self.fetch_update_action(|mut snapshot| {
if snapshot.is_complete() || snapshot.is_notified() {
... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/state.rs | MIT | cb197def683277cb7ae1e00f13398b49ac225f75 | github | async-runtime | https://github.com/tokio-rs/tokio/blob/cb197def683277cb7ae1e00f13398b49ac225f75/tokio/src/runtime/task/state.rs | 241 | 300 |
tokio-rs/tokio:tokio/src/runtime/task/state.rs:8 | pub(super) fn transition_to_notified_for_tracing(&self) -> bool {
self.fetch_update_action(|mut snapshot| {
if snapshot.is_notified() {
(false, None)
} else {
snapshot.set_notified();
snapshot.ref_inc();
(true, Some(snapshot... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/state.rs | MIT | cb197def683277cb7ae1e00f13398b49ac225f75 | github | async-runtime | https://github.com/tokio-rs/tokio/blob/cb197def683277cb7ae1e00f13398b49ac225f75/tokio/src/runtime/task/state.rs | 281 | 340 |
tokio-rs/tokio:tokio/src/runtime/task/state.rs:9 | (true, Some(snapshot))
} else {
(false, Some(snapshot))
}
}
})
}
/// Sets the `CANCELLED` bit and attempts to transition to `Running`.
///
/// Returns `true` if the transition to `Running` succeeded.
pub(super) fn transition_to... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/state.rs | MIT | cb197def683277cb7ae1e00f13398b49ac225f75 | github | async-runtime | https://github.com/tokio-rs/tokio/blob/cb197def683277cb7ae1e00f13398b49ac225f75/tokio/src/runtime/task/state.rs | 321 | 380 |
tokio-rs/tokio:tokio/src/runtime/task/state.rs:10 | // set, at which point the CAS will fail.
//
// Given this, there is no risk if this operation is reordered.
self.val
.compare_exchange_weak(
INITIAL_STATE,
(INITIAL_STATE - REF_ONE) & !JOIN_INTEREST,
Release,
Relaxed,
... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/state.rs | MIT | cb197def683277cb7ae1e00f13398b49ac225f75 | github | async-runtime | https://github.com/tokio-rs/tokio/blob/cb197def683277cb7ae1e00f13398b49ac225f75/tokio/src/runtime/task/state.rs | 361 | 420 |
tokio-rs/tokio:tokio/src/runtime/task/state.rs:11 | assert!(!curr.is_join_waker_set());
if curr.is_complete() {
return None;
}
let mut next = curr;
next.set_join_waker();
Some(next)
})
}
/// Unsets the `JOIN_WAKER` bit.
///
/// Returns `Ok` has been unset, `Err` other... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/state.rs | MIT | cb197def683277cb7ae1e00f13398b49ac225f75 | github | async-runtime | https://github.com/tokio-rs/tokio/blob/cb197def683277cb7ae1e00f13398b49ac225f75/tokio/src/runtime/task/state.rs | 401 | 460 |
tokio-rs/tokio:tokio/src/runtime/task/state.rs:12 | //
// As explained in the [Boost documentation][1], Increasing the
// reference counter can always be done with memory_order_relaxed: New
// references to an object can only be formed from an existing
// reference, and passing an existing reference from one thread to
// another m... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/state.rs | MIT | cb197def683277cb7ae1e00f13398b49ac225f75 | github | async-runtime | https://github.com/tokio-rs/tokio/blob/cb197def683277cb7ae1e00f13398b49ac225f75/tokio/src/runtime/task/state.rs | 441 | 500 |
tokio-rs/tokio:tokio/src/runtime/task/state.rs:13 | None => return output,
};
let res = self.val.compare_exchange(curr.0, next.0, AcqRel, Acquire);
match res {
Ok(_) => return output,
Err(actual) => curr = Snapshot(actual),
}
}
}
fn fetch_update<F>(&self, mut f: F) -> Resu... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/state.rs | MIT | cb197def683277cb7ae1e00f13398b49ac225f75 | github | async-runtime | https://github.com/tokio-rs/tokio/blob/cb197def683277cb7ae1e00f13398b49ac225f75/tokio/src/runtime/task/state.rs | 481 | 540 |
tokio-rs/tokio:tokio/src/runtime/task/state.rs:14 | }
/// Returns `true` if the task has been flagged as notified.
pub(super) fn is_notified(self) -> bool {
self.0 & NOTIFIED == NOTIFIED
}
fn unset_notified(&mut self) {
self.0 &= !NOTIFIED;
}
fn set_notified(&mut self) {
self.0 |= NOTIFIED;
}
pub(super) fn is_r... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/state.rs | MIT | cb197def683277cb7ae1e00f13398b49ac225f75 | github | async-runtime | https://github.com/tokio-rs/tokio/blob/cb197def683277cb7ae1e00f13398b49ac225f75/tokio/src/runtime/task/state.rs | 521 | 580 |
tokio-rs/tokio:tokio/src/runtime/task/state.rs:16 | }
impl fmt::Debug for Snapshot {
fn fmt(&self, fmt: &mut fmt::Formatter<'_>) -> fmt::Result {
fmt.debug_struct("Snapshot")
.field("is_running", &self.is_running())
.field("is_complete", &self.is_complete())
.field("is_notified", &self.is_notified())
.field("i... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/state.rs | MIT | cb197def683277cb7ae1e00f13398b49ac225f75 | github | async-runtime | https://github.com/tokio-rs/tokio/blob/cb197def683277cb7ae1e00f13398b49ac225f75/tokio/src/runtime/task/state.rs | 601 | 615 |
tokio-rs/tokio:tokio/src/runtime/task/state.rs:4 | next.ref_dec();
if next.ref_count() == 0 {
action = TransitionToRunning::Dealloc;
} else {
action = TransitionToRunning::Failed;
}
} else {
// We are able to lock the RUNNING bit.
next.set... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/state.rs | MIT | 131e7b4e49c8849298ba54b4e0c99f4b81d869e3 | github | async-runtime | https://github.com/tokio-rs/tokio/blob/131e7b4e49c8849298ba54b4e0c99f4b81d869e3/tokio/src/runtime/task/state.rs | 121 | 180 |
tokio-rs/tokio:tokio/src/runtime/task/state.rs:5 | next.ref_dec();
if next.ref_count() == 0 {
action = TransitionToIdle::OkDealloc;
} else {
action = TransitionToIdle::Ok;
}
} else {
// The caller will schedule a new notification, so we create a
... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/state.rs | MIT | 131e7b4e49c8849298ba54b4e0c99f4b81d869e3 | github | async-runtime | https://github.com/tokio-rs/tokio/blob/131e7b4e49c8849298ba54b4e0c99f4b81d869e3/tokio/src/runtime/task/state.rs | 161 | 220 |
tokio-rs/tokio:tokio/src/runtime/task/state.rs:6 | );
prev.ref_count() == count
}
/// Transitions the state to `NOTIFIED`.
///
/// If no task needs to be submitted, a ref-count is consumed.
///
/// If a task needs to be submitted, the ref-count is incremented for the
/// new Notified.
pub(super) fn transition_to_notified_by_val(... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/state.rs | MIT | 131e7b4e49c8849298ba54b4e0c99f4b81d869e3 | github | async-runtime | https://github.com/tokio-rs/tokio/blob/131e7b4e49c8849298ba54b4e0c99f4b81d869e3/tokio/src/runtime/task/state.rs | 201 | 260 |
tokio-rs/tokio:tokio/src/runtime/task/state.rs:7 | action = TransitionToNotifiedByVal::Submit;
}
(action, Some(snapshot))
})
}
/// Transitions the state to `NOTIFIED`.
pub(super) fn transition_to_notified_by_ref(&self) -> TransitionToNotifiedByRef {
self.fetch_update_action(|mut snapshot| {
if snapshot.i... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/state.rs | MIT | 131e7b4e49c8849298ba54b4e0c99f4b81d869e3 | github | async-runtime | https://github.com/tokio-rs/tokio/blob/131e7b4e49c8849298ba54b4e0c99f4b81d869e3/tokio/src/runtime/task/state.rs | 241 | 300 |
tokio-rs/tokio:tokio/src/runtime/task/state.rs:8 | ))]
pub(super) fn transition_to_notified_for_tracing(&self) -> bool {
self.fetch_update_action(|mut snapshot| {
if snapshot.is_notified() {
(false, None)
} else {
snapshot.set_notified();
snapshot.ref_inc();
(true, Some(... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/state.rs | MIT | 131e7b4e49c8849298ba54b4e0c99f4b81d869e3 | github | async-runtime | https://github.com/tokio-rs/tokio/blob/131e7b4e49c8849298ba54b4e0c99f4b81d869e3/tokio/src/runtime/task/state.rs | 281 | 340 |
tokio-rs/tokio:tokio/src/runtime/task/state.rs:9 | snapshot.ref_inc();
(true, Some(snapshot))
} else {
(false, Some(snapshot))
}
}
})
}
/// Sets the `CANCELLED` bit and attempts to transition to `Running`.
///
/// Returns `true` if the transition to `Running` su... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/state.rs | MIT | 131e7b4e49c8849298ba54b4e0c99f4b81d869e3 | github | async-runtime | https://github.com/tokio-rs/tokio/blob/131e7b4e49c8849298ba54b4e0c99f4b81d869e3/tokio/src/runtime/task/state.rs | 321 | 380 |
tokio-rs/tokio:tokio/src/runtime/task/state.rs:10 | // The moment the join handle is used (polled), the `JOIN_WAKER` flag is
// set, at which point the CAS will fail.
//
// Given this, there is no risk if this operation is reordered.
self.val
.compare_exchange_weak(
INITIAL_STATE,
(INITIAL_STATE... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/state.rs | MIT | 131e7b4e49c8849298ba54b4e0c99f4b81d869e3 | github | async-runtime | https://github.com/tokio-rs/tokio/blob/131e7b4e49c8849298ba54b4e0c99f4b81d869e3/tokio/src/runtime/task/state.rs | 361 | 420 |
tokio-rs/tokio:tokio/src/runtime/task/state.rs:11 | assert!(curr.is_join_interested());
assert!(!curr.is_join_waker_set());
if curr.is_complete() {
return None;
}
let mut next = curr;
next.set_join_waker();
Some(next)
})
}
/// Unsets the `JOIN_WAKER` bit.
///
... | rust | rust | rust-source | tokio-rs/tokio | tokio/src/runtime/task/state.rs | MIT | 131e7b4e49c8849298ba54b4e0c99f4b81d869e3 | github | async-runtime | https://github.com/tokio-rs/tokio/blob/131e7b4e49c8849298ba54b4e0c99f4b81d869e3/tokio/src/runtime/task/state.rs | 401 | 460 |
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