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refactor(job-queue): let resource_deps say (resource, units)

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It never produced a `Dep::Node`, so returning `Vec<Dep<Resource>>` made
every caller match a variant that cannot occur. `running_transients`
paid for it with a two-arm match to pull the agent out of a lease edge.

`Vec<(Resource, u32)>` says the same thing in the type, and is what the
job builder's `.needs_units(name, count)` takes — the insertion path
wraps it back into a `Dep::Resource` at the one place that still speaks
in edges.
This commit is contained in:
atlas 2026-08-02 12:37:18 +02:00 • committed by mara
commit 9be7731c5e
2 changed files with 18 additions and 28 deletions
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21
hive-c0re/src/job_queue/resource.rs
View file

@ -4,8 +4,6 @@
//! payload `N`; here `R` is [`Resource`] and `N` is [`NodeKind`] directly (each
//! variant carries the agent it targets).
use hive_jobq::Dep;
use super::model::NodeKind;
/// The two resource classes the queue gates concurrency on, as the crate's
@ -36,7 +34,7 @@ pub enum Resource {
}
impl NodeKind {
/// The [`Dep::Resource`] edges this node must acquire to run, derived from
/// The resources this node must acquire to run — `(name, units)` — derived from
/// its kind + agent: a build slot for nix-heavy kinds
/// ([`NodeKind::needs_build_slot`]) and the agent lease for
/// container-affecting kinds ([`NodeKind::needs_lease`]). Lease-exempt
@ -50,25 +48,16 @@ impl NodeKind {
/// (`try_acquire_all`) — a node never holds one resource while waiting on
/// another, so the multi-resource kinds (a `MetaLock` wants a build slot
/// *and* the meta window) cannot deadlock against each other.
pub fn resource_deps(&self) -> Vec<Dep<Resource>> {
pub fn resource_deps(&self) -> Vec<(Resource, u32)> {
let mut deps = Vec::new();
if self.needs_build_slot() {
deps.push(Dep::Resource {
name: Resource::BuildSlot,
count: 1,
});
deps.push((Resource::BuildSlot, 1));
}
if self.needs_lease() {
deps.push(Dep::Resource {
name: Resource::Agent(self.agent().to_owned()),
count: 1,
});
deps.push((Resource::Agent(self.agent().to_owned()), 1));
}
if self.needs_meta_window() {
deps.push(Dep::Resource {
name: Resource::MetaWindow,
count: 1,
});
deps.push((Resource::MetaWindow, 1));
}
deps
}