swaits/dagx
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Address soundness hole in cycle prevention

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TechnoPorg committed 2026-01-29 06:56:17 +01:00
1 parent 4ad88bcd68
commit f82205baf4
80 files changed
+730 -717
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benches/patterns/diamond.rs
+5 -4
View File
@@ -1,7 +1,7 @@
//! Diamond pattern benchmarks (fan-out then fan-in)
use criterion::Criterion;
use dagx::{task_fn, DagRunner};
use dagx::{task_fn, DagRunner, TaskHandle};
use futures::FutureExt;
pub fn bench_diamond(c: &mut Criterion) {
@@ -13,14 +13,15 @@ pub fn bench_diamond(c: &mut Criterion) {
let dag = DagRunner::new();
for i in 0..50 {
let source = dag.add_task(task_fn(move |_: ()| async move { i }));
let source: TaskHandle<_> =
dag.add_task(task_fn(move |_: ()| async move { i })).into();
let left = dag
.add_task(task_fn(|x: i32| async move { x * 2 }))
.depends_on(&source);
.depends_on(source);
let right = dag
.add_task(task_fn(|x: i32| async move { x * 3 }))
.depends_on(&source);
.depends_on(source);
dag.add_task(task_fn(|(l, r): (i32, i32)| async move { l + r }))
.depends_on((&left, &right));
benches/patterns/fanout.rs
+12 -10
View File
@@ -1,7 +1,7 @@
//! Fan-out pattern benchmarks (1 → N dependencies)
use criterion::Criterion;
use dagx::{task_fn, DagRunner};
use dagx::{task_fn, DagRunner, TaskHandle};
use futures::FutureExt;
pub fn bench_fanout(c: &mut Criterion) {
@@ -12,11 +12,11 @@ pub fn bench_fanout(c: &mut Criterion) {
b.iter(|| {
rt.block_on(async {
let dag = DagRunner::new();
let source = dag.add_task(task_fn(|_: ()| async { 42 }));
let source: TaskHandle<_> = dag.add_task(task_fn(|_: ()| async { 42 })).into();
for i in 0..100 {
dag.add_task(task_fn(move |x: i32| async move { x + i }))
.depends_on(&source);
.depends_on(source);
}
dag.run(|fut| tokio::spawn(fut).map(Result::unwrap))
@@ -31,17 +31,19 @@ pub fn bench_fanout(c: &mut Criterion) {
b.iter(|| {
rt.block_on(async {
let dag = DagRunner::new();
let source = dag.add_task(task_fn(|_: ()| async {
// Create 1000 strings - framework wraps in Arc automatically
(0..1000).map(|i| format!("Item {}", i)).collect::<Vec<_>>()
}));
let source: TaskHandle<_> = dag
.add_task(task_fn(|_: ()| async {
// Create 1000 strings - framework wraps in Arc automatically
(0..1000).map(|i| format!("Item {}", i)).collect::<Vec<_>>()
}))
.into();
for i in 0..100 {
dag.add_task(task_fn(move |data: Vec<String>| async move {
// Each consumer gets data extracted from Arc
data.iter().filter(|s| s.contains(&i.to_string())).count()
}))
.depends_on(&source);
.depends_on(source);
}
dag.run(|fut| tokio::spawn(fut).map(Result::unwrap))
@@ -61,12 +63,12 @@ pub fn bench_fanout(c: &mut Criterion) {
// Source produces a simple Copy type (usize)
// Framework wraps in Arc<usize> internally
let source = dag.add_task(task_fn(|_: ()| async { 42usize }));
let source: TaskHandle<_> = dag.add_task(task_fn(|_: ()| async { 42usize })).into();
// 100 dependents - Arc overhead visible on Copy types
for i in 0..100 {
dag.add_task(task_fn(move |x: usize| async move { x + i }))
.depends_on(&source);
.depends_on(source);
}
dag.run(|fut| tokio::spawn(fut).map(Result::unwrap))