Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

Fallback to Parking in Bounded and Unbounded Channels #1105

Open
wants to merge 3 commits into
base: master
Choose a base branch
from
Open

Fallback to Parking in Bounded and Unbounded Channels #1105

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
3 commits
Select commit Hold shift + click to select a range
86debba
implement linearizable wakeups
ibraheemdev Apr 30, 2024
61013ca
use blocking state in select macro
ibraheemdev May 2, 2024
b7277c9
fallback to blocking when waiting for block or message writes
ibraheemdev May 2, 2024
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
64 changes: 42 additions & 22 deletions crossbeam-channel/src/channel.rs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -14,6 +14,7 @@ use crate::err::{
};
use crate::flavors;
use crate::select::{Operation, SelectHandle, Token};
use crate::waker::BlockingState;

/// Creates a multi-producer multi-consumer channel of unbounded capacity.
///
Expand Down Expand Up @@ -1358,6 +1359,14 @@ impl<T> fmt::Debug for IntoIter<T> {
}

impl<T> SelectHandle for Sender<T> {
fn start(&self) -> Option<BlockingState<'_>> {
match &self.flavor {
SenderFlavor::Array(chan) => chan.sender().start_ref(),
SenderFlavor::List(chan) => chan.sender().start_ref(),
SenderFlavor::Zero(chan) => chan.start(),
}
}

fn try_select(&self, token: &mut Token) -> bool {
match &self.flavor {
SenderFlavor::Array(chan) => chan.sender().try_select(token),
Expand All @@ -1370,11 +1379,11 @@ impl<T> SelectHandle for Sender<T> {
None
}

fn register(&self, oper: Operation, cx: &Context) -> bool {
fn register(&self, oper: Operation, cx: &Context, state: Option<&BlockingState<'_>>) -> bool {
match &self.flavor {
SenderFlavor::Array(chan) => chan.sender().register(oper, cx),
SenderFlavor::List(chan) => chan.sender().register(oper, cx),
SenderFlavor::Zero(chan) => chan.sender().register(oper, cx),
SenderFlavor::Array(chan) => chan.sender().register(oper, cx, state),
SenderFlavor::List(chan) => chan.sender().register(oper, cx, state),
SenderFlavor::Zero(chan) => chan.sender().register(oper, cx, state),
}
}

Expand Down Expand Up @@ -1402,11 +1411,11 @@ impl<T> SelectHandle for Sender<T> {
}
}

fn watch(&self, oper: Operation, cx: &Context) -> bool {
fn watch(&self, oper: Operation, cx: &Context, state: Option<&BlockingState<'_>>) -> bool {
match &self.flavor {
SenderFlavor::Array(chan) => chan.sender().watch(oper, cx),
SenderFlavor::List(chan) => chan.sender().watch(oper, cx),
SenderFlavor::Zero(chan) => chan.sender().watch(oper, cx),
SenderFlavor::Array(chan) => chan.sender().watch(oper, cx, state),
SenderFlavor::List(chan) => chan.sender().watch(oper, cx, state),
SenderFlavor::Zero(chan) => chan.sender().watch(oper, cx, state),
}
}

Expand All @@ -1420,6 +1429,17 @@ impl<T> SelectHandle for Sender<T> {
}

impl<T> SelectHandle for Receiver<T> {
fn start(&self) -> Option<BlockingState<'_>> {
match &self.flavor {
ReceiverFlavor::Array(chan) => chan.receiver().start_ref(),
ReceiverFlavor::List(chan) => chan.receiver().start_ref(),
ReceiverFlavor::Zero(chan) => chan.start(),
ReceiverFlavor::At(chan) => chan.start(),
ReceiverFlavor::Tick(chan) => chan.start(),
ReceiverFlavor::Never(chan) => chan.start(),
}
}

fn try_select(&self, token: &mut Token) -> bool {
match &self.flavor {
ReceiverFlavor::Array(chan) => chan.receiver().try_select(token),
Expand All @@ -1442,14 +1462,14 @@ impl<T> SelectHandle for Receiver<T> {
}
}

fn register(&self, oper: Operation, cx: &Context) -> bool {
fn register(&self, oper: Operation, cx: &Context, state: Option<&BlockingState<'_>>) -> bool {
match &self.flavor {
ReceiverFlavor::Array(chan) => chan.receiver().register(oper, cx),
ReceiverFlavor::List(chan) => chan.receiver().register(oper, cx),
ReceiverFlavor::Zero(chan) => chan.receiver().register(oper, cx),
ReceiverFlavor::At(chan) => chan.register(oper, cx),
ReceiverFlavor::Tick(chan) => chan.register(oper, cx),
ReceiverFlavor::Never(chan) => chan.register(oper, cx),
ReceiverFlavor::Array(chan) => chan.receiver().register(oper, cx, state),
ReceiverFlavor::List(chan) => chan.receiver().register(oper, cx, state),
ReceiverFlavor::Zero(chan) => chan.receiver().register(oper, cx, state),
ReceiverFlavor::At(chan) => chan.register(oper, cx, state),
ReceiverFlavor::Tick(chan) => chan.register(oper, cx, state),
ReceiverFlavor::Never(chan) => chan.register(oper, cx, state),
}
}

Expand Down Expand Up @@ -1486,14 +1506,14 @@ impl<T> SelectHandle for Receiver<T> {
}
}

fn watch(&self, oper: Operation, cx: &Context) -> bool {
fn watch(&self, oper: Operation, cx: &Context, state: Option<&BlockingState<'_>>) -> bool {
match &self.flavor {
ReceiverFlavor::Array(chan) => chan.receiver().watch(oper, cx),
ReceiverFlavor::List(chan) => chan.receiver().watch(oper, cx),
ReceiverFlavor::Zero(chan) => chan.receiver().watch(oper, cx),
ReceiverFlavor::At(chan) => chan.watch(oper, cx),
ReceiverFlavor::Tick(chan) => chan.watch(oper, cx),
ReceiverFlavor::Never(chan) => chan.watch(oper, cx),
ReceiverFlavor::Array(chan) => chan.receiver().watch(oper, cx, state),
ReceiverFlavor::List(chan) => chan.receiver().watch(oper, cx, state),
ReceiverFlavor::Zero(chan) => chan.receiver().watch(oper, cx, state),
ReceiverFlavor::At(chan) => chan.watch(oper, cx, state),
ReceiverFlavor::Tick(chan) => chan.watch(oper, cx, state),
ReceiverFlavor::Never(chan) => chan.watch(oper, cx, state),
}
}

Expand Down
Loading