File size: 4,313 Bytes
1e92f2d | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 | #![feature(arbitrary_self_types)]
#![feature(arbitrary_self_types_pointers)]
#![allow(clippy::needless_return)] // tokio macro-generated code doesn't respect this
use std::sync::Arc;
use anyhow::Result;
use serde::{Deserialize, Serialize};
use turbo_tasks::{NonLocalValue, State, TaskInput, Vc, trace::TraceRawVcs};
use turbo_tasks_testing::{Registration, register, run};
static REGISTRATION: Registration = register!();
#[derive(
Clone, Debug, PartialEq, Eq, Hash, NonLocalValue, Serialize, Deserialize, TraceRawVcs, TaskInput,
)]
pub struct TaskReferenceSpec {
task: u16,
chain: u8,
read: bool,
read_strongly_consistent: bool,
}
#[derive(
Clone, Debug, PartialEq, Eq, Hash, NonLocalValue, Serialize, Deserialize, TraceRawVcs, TaskInput,
)]
pub struct TaskSpec {
references: Vec<TaskReferenceSpec>,
children: u8,
change: Option<Box<TaskSpec>>,
}
#[turbo_tasks::value(transparent)]
struct Iteration(State<usize>);
#[tokio::test]
async fn graph_bug() {
run(®ISTRATION, move || async move {
let spec = vec![
TaskSpec {
references: vec![TaskReferenceSpec {
task: 1,
chain: 0,
read: false,
read_strongly_consistent: false,
}],
children: 0,
change: Some(Box::new(TaskSpec {
references: vec![TaskReferenceSpec {
task: 1,
chain: 254,
read: false,
read_strongly_consistent: false,
}],
children: 0,
change: None,
})),
},
TaskSpec {
references: vec![],
children: 0,
change: None,
},
];
let it = create_iteration().resolve().await?;
it.await?.set(0);
println!("🚀 Initial");
let task = run_task(Arc::new(spec), it, 0);
task.strongly_consistent().await?;
println!("🚀 Set iteration to 1");
it.await?.set(1);
task.strongly_consistent().await?;
println!("🚀 Finished strongly consistent wait");
anyhow::Ok(())
})
.await
.unwrap()
}
#[turbo_tasks::function]
fn create_iteration() -> Vc<Iteration> {
Vc::cell(State::new(0))
}
#[turbo_tasks::function]
async fn run_task_chain(
spec: Arc<Vec<TaskSpec>>,
iteration: Vc<Iteration>,
from: u16,
ref_index: usize,
to: u16,
chain: u8,
) -> Result<Vc<()>> {
println!("run_task_chain(from: {from}, ref_index: {ref_index}, to: {to}, chain: {chain})");
if chain > 0 {
run_task_chain(spec, iteration, from, ref_index, to, chain - 1).await?;
} else {
run_task(spec, iteration, to).await?;
}
Ok(Vc::cell(()))
}
#[turbo_tasks::function]
async fn run_task(
spec: Arc<Vec<TaskSpec>>,
iteration: Vc<Iteration>,
task_index: u16,
) -> Result<Vc<()>> {
println!("run_task(task_index: {task_index})");
let mut task = &spec[task_index as usize];
if task.change.is_some() {
let iteration = iteration.await?;
let it = *iteration.get();
for _ in 0..it {
task = if let Some(change) = &task.change {
change
} else {
task
};
}
}
for i in 0..task.children {
run_task_child(task_index, i).await?;
}
for (i, reference) in task.references.iter().enumerate() {
let call = if reference.chain > 0 {
run_task_chain(
spec.clone(),
iteration,
task_index,
i,
reference.task,
reference.chain,
)
} else {
run_task(spec.clone(), iteration, reference.task)
};
if reference.read {
call.await?;
}
if reference.read_strongly_consistent {
call.strongly_consistent().await?;
}
}
Ok(Vc::cell(()))
}
#[turbo_tasks::function]
async fn run_task_child(from: u16, i: u8) -> Result<Vc<()>> {
println!("run_task_child(from: {from}, i: {i})");
let _ = from;
let _ = i;
Ok(Vc::cell(()))
}
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