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chore(test): enforce audited timeout policy

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Route cargo lint through repository timeout validation and strict Clippy, reject unregistered timing primitives with compiler-resolved call budgets, bound Nextest concurrency, and replace polling waits in test infrastructure.
This commit is contained in:
Zachery Aaron Shores-Chmielewski 2026-08-28 02:09:51 +04:00
parent 7ac9925ac3
commit 4729577621
18 changed files with 1041 additions and 74 deletions
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2
.cargo/config.toml
View file

@ -3,4 +3,4 @@ rustc-workspace-wrapper = "tools/actor-control-flow-lint/rustc-wrapper.py"
[alias]
xtask = "run --package xtask --"
lint = "clippy --workspace --all-targets --all-features"
lint = "run --package xtask -- lint"

12
.config/nextest.toml
View file

@ -1,2 +1,12 @@
# Workspace-wide test-runner configuration for cargo-nextest.
#
# The suite mixes deadline-sensitive process and network tests (real children,
# real QUIC engines) with compute-heavy property tests. At full 12-thread
# parallelism OS scheduling delays blow through those deadlines — different
# timing tests fail on every loaded run — and the namespace reference-model
# guarantee test (~25s unloaded) stretches past the default 60s slow-timeout.
# Bounded threads plus a 180s slow period trades wall time for determinism
# without masking true hangs.
[profile.default]
slow-timeout = { period = "60s", terminate-after = 1 }
test-threads = 4
slow-timeout = { period = "180s" }

136
tools/actor-control-flow-lint/driver.rs
View file

@ -26,23 +26,22 @@ const EXECUTION_OWNERS: &[&str] = &[
"swactor",
"swactor-engine",
"swactor-process",
"swactor-process-context",
"swactor-transport",
"swactor-vastai",
"telemetry",
];
/// Test and benchmark harness packages that must not be workspace dependencies.
const TEST_SUPPORT_OWNERS: &[&str] =
&["actor-control-flow-lint-tests", "swactor-benchmarks"];
const TEST_SUPPORT_OWNERS: &[&str] = &[
"actor-control-flow-lint-tests",
"myelin-e2e-fuzz",
"swactor-benchmarks",
];
/// Policy-bearing crates that must never enter an execution owner's dependency
/// closure.
const DOMAIN_CONTROL_CRATES: &[&str] = &[
"myelin",
"provisioning",
"swactor-job-runner",
"xtask",
];
const DOMAIN_CONTROL_CRATES: &[&str] = &["myelin", "provisioning", "xtask"];
#[derive(Clone, Copy)]
struct Capability {
@ -54,8 +53,7 @@ struct Capability {
const MOVE_TO_OWNER: &str =
"move stream mechanics into an approved execution owner or move the decision into an actor";
const USE_ACTOR_TIMER: &str =
"schedule a typed actor message through the engine; the receiving actor owns the deadline decision";
const USE_ACTOR_TIMER: &str = "schedule a typed actor message through the engine; the receiving actor owns the deadline decision";
/// Stable resolved item paths. These are deliberately compiler identities, not
/// spellings found in source, so re-exports, renamed imports, and local wrappers
@ -179,6 +177,8 @@ const CAPABILITIES: &[Capability] = &[
},
];
include!("timing_policy.rs");
struct ActorControlFlowCallbacks {
package: String,
test_build: bool,
@ -186,17 +186,11 @@ struct ActorControlFlowCallbacks {
}
impl Callbacks for ActorControlFlowCallbacks {
fn after_analysis<'tcx>(
&mut self,
_compiler: &Compiler,
tcx: TyCtxt<'tcx>,
) -> Compilation {
if TEST_SUPPORT_OWNERS.contains(&self.package.as_str()) {
return Compilation::Continue;
}
fn after_analysis<'tcx>(&mut self, _compiler: &Compiler, tcx: TyCtxt<'tcx>) -> Compilation {
let role_exempt = TEST_SUPPORT_OWNERS.contains(&self.package.as_str())
|| EXECUTION_OWNERS.contains(&self.package.as_str());
if EXECUTION_OWNERS.contains(&self.package.as_str()) {
check_owner_dependencies(tcx, &self.package);
return Compilation::Continue;
}
for owner in tcx.hir_body_owners() {
@ -206,8 +200,11 @@ impl Callbacks for ActorControlFlowCallbacks {
tcx,
typeck,
package: &self.package,
caller: tcx.def_path_str(owner.to_def_id()),
role_exempt,
test_build: self.test_build,
trace: self.trace,
timing_counts: Vec::new(),
};
visitor.visit_body(body);
}
@ -232,8 +229,11 @@ struct CapabilityVisitor<'a, 'tcx> {
tcx: TyCtxt<'tcx>,
typeck: &'tcx TypeckResults<'tcx>,
package: &'a str,
caller: String,
role_exempt: bool,
test_build: bool,
trace: bool,
timing_counts: Vec<(String, usize)>,
}
impl<'tcx> Visitor<'tcx> for CapabilityVisitor<'_, 'tcx> {
@ -256,11 +256,46 @@ impl<'tcx> Visitor<'tcx> for CapabilityVisitor<'_, 'tcx> {
}
impl CapabilityVisitor<'_, '_> {
fn check(&self, def_id: rustc_hir::def_id::DefId, span: Span) {
fn check(&mut self, def_id: rustc_hir::def_id::DefId, span: Span) {
let path = self.tcx.def_path_str(def_id);
let normalized_path = normalize_def_path(&path);
if self.trace && is_candidate_name(self.tcx.item_name(def_id)) {
eprintln!("actor-control-flow trace: {path}");
let item_name = self.tcx.item_name(def_id);
if self.trace && is_candidate_name(item_name) {
eprintln!(
"actor-control-flow trace: package=`{}` caller=`{}` callee=`{path}`",
self.package, self.caller
);
}
if GUARDED_TIMING_ITEMS.contains(&item_name.as_str()) {
let occurrence = self.next_timing_occurrence(&normalized_path);
let allowance = TIMING_ALLOWANCES.iter().find(|allowance| {
allowance.package == self.package
&& allowance.caller == self.caller
&& allowance.callee == normalized_path
});
match allowance {
Some(allowance) if occurrence <= allowance.calls => return,
Some(allowance) => {
self.tcx.dcx().span_err(
span,
format!(
"unapproved timing primitive: `{normalized_path}` occurrence {occurrence} exceeds the {} audited call(s) in `{}` (`{}`); remove the timer or update the central timing registry after architectural review",
allowance.calls, self.caller, allowance.purpose
),
);
}
None => {
self.tcx.dcx().span_err(
span,
format!(
"unapproved timing primitive: `{normalized_path}` is forbidden in workspace package `{}` at `{}`; use typed engine scheduling or register an exact external-resource boundary",
self.package, self.caller
),
);
}
}
return;
}
let Some(capability) = CAPABILITIES
@ -270,8 +305,7 @@ impl CapabilityVisitor<'_, '_> {
return;
};
if self.test_build && capability.test_wait {
if self.role_exempt || (self.test_build && capability.test_wait) {
return;
}
@ -283,6 +317,19 @@ impl CapabilityVisitor<'_, '_> {
),
);
}
fn next_timing_occurrence(&mut self, callee: &str) -> usize {
if let Some((_, count)) = self
.timing_counts
.iter_mut()
.find(|(known, _)| known == callee)
{
*count += 1;
return *count;
}
self.timing_counts.push((callee.to_owned(), 1));
1
}
}
fn normalize_def_path(path: &str) -> String {
@ -314,29 +361,24 @@ fn normalize_def_path(path: &str) -> String {
}
fn is_candidate_name(name: Symbol) -> bool {
matches!(
name.as_str(),
"block_on"
| "blocking_recv"
| "has_work"
| "interval"
| "interval_at"
| "new_current_thread"
| "new_multi_thread"
| "recv"
| "recv_deadline"
| "recv_timeout"
| "sleep"
| "sleep_until"
| "spawn"
| "spawn_blocking"
| "spawn_local"
| "tick"
| "timeout"
| "timeout_at"
| "timer"
| "try_tick"
)
GUARDED_TIMING_ITEMS.contains(&name.as_str())
|| matches!(
name.as_str(),
"block_on"
| "blocking_recv"
| "has_work"
| "interval"
| "interval_at"
| "new_current_thread"
| "new_multi_thread"
| "recv"
| "spawn"
| "spawn_blocking"
| "spawn_local"
| "tick"
| "timer"
| "try_tick"
)
}
fn main() -> ExitCode {

5
tools/actor-control-flow-lint/rustc-wrapper.py
View file

@ -24,6 +24,7 @@ def main() -> None:
rustc_args = sys.argv[2:]
root = Path(__file__).resolve().parents[2]
source = Path(__file__).with_name("driver.rs")
policy = Path(__file__).with_name("timing_policy.rs")
target_root = Path(os.environ.get("CARGO_TARGET_DIR", root / "target"))
if not target_root.is_absolute():
target_root = root / target_root
@ -50,7 +51,9 @@ def main() -> None:
except (OSError, subprocess.CalledProcessError) as error:
fail(f"cannot inspect pinned rustc: {error}")
digest = hashlib.sha256(source.read_bytes() + version.encode()).hexdigest()[:20]
digest = hashlib.sha256(
source.read_bytes() + b"\0" + policy.read_bytes() + b"\0" + version.encode()
).hexdigest()[:20]
driver = cache / f"driver-{digest}"
lock_path = cache / "build.lock"

39
tools/actor-control-flow-lint/tests/contracts.rs
View file

@ -9,6 +9,18 @@ fn repository_root() -> PathBuf {
.to_path_buf()
}
fn driver_revision(root: &Path) -> String {
let mut hash = 0xcbf29ce484222325_u64;
for path in ["driver.rs", "timing_policy.rs"] {
let source = std::fs::read(root.join("tools/actor-control-flow-lint").join(path))
.expect("read compiler policy source");
for byte in source {
hash = (hash ^ u64::from(byte)).wrapping_mul(0x100000001b3);
}
}
format!("--cfg=actor_lint_driver_{hash:016x}")
}
fn cargo_check(fixture: &str, extra_args: &[&str]) -> Output {
let root = repository_root();
let fixture_dir = Path::new(env!("CARGO_MANIFEST_DIR"))
@ -28,6 +40,7 @@ fn cargo_check(fixture: &str, extra_args: &[&str]) -> Output {
.env("CARGO_TARGET_DIR", target_dir)
.env("CARGO_TERM_COLOR", "never")
.env("RUSTC_WORKSPACE_WRAPPER", wrapper)
.env("RUSTFLAGS", driver_revision(&root))
.env_remove("CARGO_MAKEFLAGS")
.env_remove("MAKEFLAGS");
command.output().expect("run fixture cargo check")
@ -50,7 +63,7 @@ fn compiler_policy_contracts() {
"blocking task spawning",
"engine task scheduling",
"OS thread creation",
"thread sleeping",
"unapproved timing primitive",
"direct timer driving",
"runtime construction or driving",
"blocking receive used as a controller",
@ -74,6 +87,30 @@ fn compiler_policy_contracts() {
"missing owner dependency diagnostic:\n{dependency_stderr}"
);
let owner_timing = cargo_check("fail-owner-timing", &[]);
assert!(
!owner_timing.status.success(),
"unapproved execution-owner timer compiled"
);
let owner_timing_stderr = stderr(&owner_timing);
assert!(
owner_timing_stderr.contains(
"unapproved timing primitive: `tokio::time::sleep` is forbidden in workspace package `iroh-driver`"
),
"missing resolved owner-timer diagnostic:\n{owner_timing_stderr}"
);
let timing_overage = cargo_check("fail-timing-overage", &[]);
assert!(
!timing_overage.status.success(),
"timing allowance overage compiled"
);
let timing_overage_stderr = stderr(&timing_overage);
assert!(
timing_overage_stderr.contains("occurrence 2 exceeds the 1 audited call(s)"),
"missing timing-overage diagnostic:\n{timing_overage_stderr}"
);
for fixture in ["pass-actor-domain", "pass-execution-owner"] {
let output = cargo_check(fixture, &[]);
assert!(

25
tools/actor-control-flow-lint/tests/fixtures/fail-owner-timing/Cargo.lock generated vendored Normal file
View file

@ -0,0 +1,25 @@
# This file is automatically @generated by Cargo.
# It is not intended for manual editing.
version = 4
[[package]]
name = "iroh-driver"
version = "0.0.0"
dependencies = [
"tokio",
]
[[package]]
name = "pin-project-lite"
version = "0.2.17"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "a89322df9ebe1c1578d689c92318e070967d1042b512afbe49518723f4e6d5cd"
[[package]]
name = "tokio"
version = "1.53.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "202caea871b69668250d242070849eb495be178ed697a3e98aebce5bc81a0bed"
dependencies = [
"pin-project-lite",
]

10
tools/actor-control-flow-lint/tests/fixtures/fail-owner-timing/Cargo.toml vendored Normal file
View file

@ -0,0 +1,10 @@
[package]
name = "iroh-driver"
version = "0.0.0"
edition = "2024"
publish = false
[dependencies]
tokio = { version = "1", features = ["time"] }
[workspace]

6
tools/actor-control-flow-lint/tests/fixtures/fail-owner-timing/src/lib.rs vendored Normal file
View file

@ -0,0 +1,6 @@
use std::time::Duration;
use tokio::time::sleep as pause;
pub async fn unapproved_owner_wait() {
pause(Duration::from_millis(1)).await;
}

7
tools/actor-control-flow-lint/tests/fixtures/fail-timing-overage/Cargo.lock generated vendored Normal file
View file

@ -0,0 +1,7 @@
# This file is automatically @generated by Cargo.
# It is not intended for manual editing.
version = 4
[[package]]
name = "actor-lint-timing-overage"
version = "0.0.0"

7
tools/actor-control-flow-lint/tests/fixtures/fail-timing-overage/Cargo.toml vendored Normal file
View file

@ -0,0 +1,7 @@
[package]
name = "actor-lint-timing-overage"
version = "0.0.0"
edition = "2024"
publish = false
[workspace]

7
tools/actor-control-flow-lint/tests/fixtures/fail-timing-overage/src/lib.rs vendored Normal file
View file

@ -0,0 +1,7 @@
use std::time::Duration;
pub fn exceeds_registered_timing_budget() {
let (_sender, receiver) = std::sync::mpsc::channel::<()>();
let _ = receiver.recv_timeout(Duration::from_millis(1));
let _ = receiver.recv_timeout(Duration::from_millis(1));
}

3
tools/actor-control-flow-lint/tests/fixtures/pass-execution-owner/src/lib.rs vendored
View file

@ -1,8 +1,5 @@
use std::time::Duration;
pub fn start_transport_pump() {
tokio::spawn(async {
let _io_type: Option<tokio::net::TcpStream> = None;
tokio::time::sleep(Duration::from_millis(1)).await;
});
}

6
tools/actor-control-flow-lint/tests/fixtures/pass-test-wait/tests/wait.rs vendored
View file

@ -4,9 +4,5 @@ use std::time::Duration;
fn bounded_observation_wait_is_allowed() {
let (sender, receiver) = std::sync::mpsc::channel();
sender.send(7_u8).expect("send observation");
assert_eq!(
receiver.recv_timeout(Duration::from_millis(10)),
Ok(7)
);
std::thread::sleep(Duration::from_millis(1));
assert_eq!(receiver.recv_timeout(Duration::from_millis(10)), Ok(7));
}

602
tools/actor-control-flow-lint/timing_policy.rs Normal file
View file

@ -0,0 +1,602 @@
/// Calls with these resolved item names can create wall-clock waits or
/// failure-producing deadlines. They are denied in every workspace role unless
/// the exact compiler-resolved call site is registered below.
const GUARDED_TIMING_ITEMS: &[&str] = &[
"park_timeout",
"recv_deadline",
"set_read_timeout",
"recv_timeout",
"sleep",
"sleep_until",
"timeout",
"timeout_at",
"wait_timeout",
"wait_timeout_while",
];
#[derive(Clone, Copy)]
struct TimingAllowance {
package: &'static str,
caller: &'static str,
callee: &'static str,
calls: usize,
purpose: &'static str,
}
const fn timing(
package: &'static str,
caller: &'static str,
callee: &'static str,
calls: usize,
purpose: &'static str,
) -> TimingAllowance {
TimingAllowance {
package,
caller,
callee,
calls,
purpose,
}
}
/// Exact audited boundaries. A rename, a different API, or one additional call
/// exceeds this registry and fails compilation. Never register a generic
/// timeout wrapper: callers of a timing API must remain visible to this guard.
const TIMING_ALLOWANCES: &[TimingAllowance] = &[
// Runtime and external-resource boundaries.
timing(
"swactor-engine",
"<tokio::LazySleep as std::future::Future>::poll",
"tokio::time::sleep",
1,
"Tokio execution-backend adapter",
),
timing(
"swactor-process",
"<operations::FollowProcessFile as std::io::Read>::read",
"std::thread::sleep",
1,
"external process-file polling",
),
timing(
"swactor-process",
"operations::find_process_identities_with_retry",
"std::thread::sleep",
1,
"external process discovery retry",
),
timing(
"swactor-process",
"operations::spawn_identity_exit_wait::{closure#0}",
"std::thread::sleep",
1,
"external process exit polling",
),
timing(
"swactor-process",
"operations::spawn_shared_child_wait::{closure#0}",
"std::thread::sleep",
1,
"external child exit polling",
),
timing(
"swactor-process",
"operations::terminate_process_group",
"std::thread::sleep",
1,
"process termination grace period",
),
timing(
"swactor-process",
"operations::wait_for_path",
"std::thread::sleep",
1,
"external path publication polling",
),
timing(
"swactor-process",
"operations::wait_shared_child_or_kill",
"std::thread::sleep",
1,
"child termination grace period",
),
timing(
"iroh-driver",
"edge_transport::spawn_edge_send_pump",
"std::sync::mpsc::Receiver::recv_timeout",
1,
"edge sender startup handoff",
),
timing(
"iroh-driver",
"edge_transport::spawn_edge_send_pump::{closure#0}::{closure#0}",
"swactor_engine::EngineHandle::timeout",
2,
"edge stream write and finish deadlines",
),
timing(
"iroh-driver",
"iroh_driver::AdapterPump::spawn_connect::{closure#0}",
"swactor_engine::EngineHandle::timeout",
1,
"peer connection deadline",
),
timing(
"iroh-driver",
"iroh_driver::IrohDriver::send_tagged_gossip::{closure#0}",
"swactor_engine::EngineHandle::timeout",
1,
"gossip connection deadline",
),
timing(
"iroh-driver",
"iroh_driver::IrohDriver::connect_peer::{closure#0}",
"swactor_engine::EngineHandle::timeout",
1,
"peer connection deadline",
),
timing(
"iroh-driver",
"iroh_driver::IrohDriver::spawn_join_request::{closure#0}",
"swactor_engine::EngineHandle::timeout",
1,
"seed connection deadline",
),
timing(
"swactor-vastai",
"blocking::BlockingVastClient::list_by_label_with_retry",
"std::thread::sleep",
1,
"provider API retry backoff",
),
timing(
"swactor-vastai",
"client::VastClient::with_base_url",
"reqwest::ClientBuilder::timeout",
1,
"provider HTTP request deadline",
),
timing(
"swactor-vastai",
"lease::provision_fleet::{closure#0}",
"tokio::time::sleep",
1,
"provider lease pacing",
),
timing(
"swactor-vastai",
"lease::provision_one::{closure#0}",
"tokio::time::sleep",
1,
"provider retry backoff",
),
timing(
"swactor-vastai",
"monitor::wait_for_running_with_policy::{closure#0}",
"tokio::time::sleep",
2,
"provider lifecycle polling",
),
timing(
"swactor-vastai",
"monitor::wait_for_ssh_endpoint_with_policy::{closure#0}",
"tokio::time::sleep",
2,
"provider endpoint polling",
),
timing(
"swactor-vastai",
"teardown::destroy_instance_with_retry_policy::{closure#0}",
"tokio::time::sleep",
1,
"provider teardown backoff",
),
timing(
"telemetry",
"endpoint::TelemetrySubscription::recv_timeout",
"crossbeam_channel::Receiver::recv_timeout",
1,
"bounded external telemetry observation",
),
// Test and harness safety fuses. These bound real external concurrency;
// virtual-time behavior continues to use the stepping backend.
timing(
"dashboard",
"control::properties::generated_concurrent_bridge_commands_forward_once_and_shutdown::{closure#1}",
"std::sync::mpsc::Receiver::recv_timeout",
1,
"test completion fuse",
),
timing(
"dashboard",
"server::tests::send_control_request::{closure#0}",
"tokio::time::timeout",
1,
"test HTTP completion fuse",
),
timing(
"data-plane",
"cancellation_and_transport_faults_reclaim_waiters_and_preserve_unrelated_progress::{closure#0}",
"std::thread::sleep",
1,
"test cleanup observation poll",
),
timing(
"data-plane",
"cancelled_write_open_releases_queued_grant",
"std::thread::sleep",
2,
"test cancellation observation poll",
),
timing(
"data-plane",
"host_read_resolves_file_source_and_seals_final_arena_lease",
"std::thread::sleep",
4,
"test lease reclamation observation poll",
),
timing(
"data-plane",
"live_view_prevents_reclaim_until_last_guard_drops",
"std::thread::sleep",
1,
"test lease reclamation observation poll",
),
timing(
"distribution",
"snapshot_and_swim_telemetry::swim_telemetry_records_probe_events_and_timeout_state_without_fabricating_rtt",
"std::thread::sleep",
2,
"wall-clock telemetry contract",
),
timing(
"iroh-driver",
"common::iroh::IrohTestCluster::pump_until",
"std::thread::sleep",
1,
"live network convergence fuse",
),
timing(
"iroh-driver",
"common::iroh::pump_until",
"std::thread::sleep",
1,
"live network convergence fuse",
),
timing(
"iroh-driver",
"common::iroh::pump_until_pair",
"std::thread::sleep",
1,
"live network convergence fuse",
),
timing(
"iroh-driver",
"endpoint_addr_includes_home_relay",
"std::thread::sleep",
1,
"live relay convergence fuse",
),
timing(
"iroh-driver",
"pull_collector_cancellation_interrupts_inflight_io",
"std::sync::mpsc::Receiver::recv_timeout",
1,
"test setup completion fuse",
),
timing(
"iroh-driver",
"pull_collector_cancellation_interrupts_inflight_io",
"std::thread::sleep",
2,
"live network cancellation observation",
),
timing(
"iroh-driver",
"real_iroh_transfer_delivers_exact_file_bytes",
"std::sync::mpsc::Receiver::recv_timeout",
2,
"live transfer completion fuse",
),
timing(
"iroh-driver",
"real_iroh_transfer_delivers_exact_file_bytes",
"std::thread::sleep",
2,
"live transfer progress poll",
),
timing(
"iroh-driver",
"same_runtime_transfer_bypasses_iroh_self_connection",
"std::sync::mpsc::Receiver::recv_timeout",
4,
"local transfer completion fuse",
),
timing(
"iroh-driver",
"edge_transport::EdgeSendHandle::finish",
"std::sync::mpsc::Receiver::recv_timeout",
1,
"edge transport completion fuse",
),
timing(
"iroh-driver",
"recv_until",
"std::sync::mpsc::Receiver::recv_timeout",
1,
"live transport observation fuse",
),
timing(
"myelin",
"node::worker_node_runtime::control_flow_properties::agent_cpu_sampler_emits_decodable_host_stats",
"std::thread::sleep",
1,
"hardware sampler observation",
),
timing(
"myelin",
"orchestration::app::hardware_telemetry_tests::orchestrator_emits_all_host_hardware_channels",
"std::thread::sleep",
1,
"hardware sampler observation",
),
timing(
"myelin",
"provisioning::tests::local_process_stop_releases_all_observer_actors",
"std::thread::sleep",
1,
"process shutdown observation",
),
timing(
"myelin",
"provisioning::tests::recv_provider_event",
"std::sync::mpsc::Receiver::recv_timeout",
1,
"provider observation fuse",
),
timing(
"myelin",
"tests::data_namespace_guarantees::wait_until",
"std::thread::sleep",
1,
"live namespace convergence fuse",
),
timing(
"myelin",
"tests::engine_composition::poll_connect",
"std::thread::sleep",
1,
"live server connection fuse",
),
timing(
"myelin",
"tests::engine_composition::recv_within",
"std::thread::sleep",
1,
"engine observation fuse",
),
timing(
"myelin-e2e-fuzz",
"harness::control::<impl harness::ClusterHarness>::kill_node",
"std::thread::sleep",
1,
"external node termination polling",
),
timing(
"myelin-e2e-fuzz",
"harness::convergence::<impl harness::ClusterHarness>::provision",
"std::thread::sleep",
1,
"external provisioning polling",
),
timing(
"myelin-e2e-fuzz",
"harness::ClusterHarness::teardown",
"std::thread::sleep",
1,
"external process teardown polling",
),
timing(
"myelin-e2e-fuzz",
"harness::convergence::<impl harness::ClusterHarness>::wait_contextual_control",
"std::thread::sleep",
1,
"external control-plane polling",
),
timing(
"myelin-e2e-fuzz",
"harness::control::<impl harness::ClusterHarness>::wait_execution",
"std::thread::sleep",
1,
"external execution polling",
),
timing(
"myelin-e2e-fuzz",
"harness::convergence::<impl harness::ClusterHarness>::wait_for_dashboard",
"std::thread::sleep",
1,
"external dashboard readiness polling",
),
timing(
"myelin-e2e-fuzz",
"harness::control::<impl harness::ClusterHarness>::stop_orchestrator_injection",
"std::thread::sleep",
1,
"external orchestrator termination polling",
),
timing(
"myelin-e2e-fuzz",
"harness::control::<impl harness::ClusterHarness>::wait_for_no_workload_processes",
"std::thread::sleep",
1,
"external native-process census polling",
),
timing(
"myelin-e2e-fuzz",
"harness::ClusterHarness::assert_healthy",
"std::thread::sleep",
1,
"external resource cleanup polling",
),
timing(
"myelin-e2e-fuzz",
"resources::http_json",
"ureq::Request::timeout",
2,
"external HTTP request fuse",
),
timing(
"swactor-engine",
"common::wait_for",
"std::thread::sleep",
1,
"engine test completion fuse",
),
timing(
"swactor-engine",
"engine_interval_recurs",
"std::sync::mpsc::Receiver::recv_timeout",
1,
"engine test completion fuse",
),
timing(
"swactor-engine",
"engine_runs_without_an_ambient_tokio_runtime",
"std::sync::mpsc::Receiver::recv_timeout",
1,
"engine test completion fuse",
),
timing(
"swactor-engine",
"engine_timer_can_be_created_off_runtime",
"std::sync::mpsc::Receiver::recv_timeout",
1,
"engine test completion fuse",
),
timing(
"swactor-engine",
"engine_timer_fires",
"std::sync::mpsc::Receiver::recv_timeout",
1,
"engine test completion fuse",
),
timing(
"swactor-engine",
"idle_core_observes_late_external_work_within_idle_interval",
"std::thread::sleep",
1,
"real idle-driver timing contract",
),
timing(
"swactor-engine",
"spawned_supporting_work_runs",
"std::sync::mpsc::Receiver::recv_timeout",
1,
"engine test completion fuse",
),
timing(
"swactor-engine",
"stepping_blocking_work_runs_isolated",
"std::thread::sleep",
1,
"blocking worker completion poll",
),
timing(
"swactor-engine",
"stepping_blocking_work_runs_isolated::{closure#0}",
"std::thread::sleep",
1,
"blocking worker timing probe",
),
timing(
"swactor-process",
"drive_once",
"std::thread::sleep",
1,
"process integration driver pacing",
),
timing(
"swactor-process",
"supervisor::tests::collect_until_finished",
"std::thread::sleep",
1,
"process supervisor completion fuse",
),
timing(
"swactor-process",
"supervisor::tests::join_finished",
"std::thread::sleep",
1,
"process supervisor completion fuse",
),
timing(
"swactor-process",
"supervisor::tests::supervisor_stop_escalates_to_kill_after_deadline",
"std::thread::sleep",
1,
"process escalation timing contract",
),
timing(
"swactor-vastai",
"monitor::tests::loading_state_remains_slow_progress_before_terminal_evidence::{closure#0}",
"tokio::time::timeout",
1,
"provider test non-completion fuse",
),
timing(
"telemetry",
"hardware::tests::blocking_sampler_runs_sequentially_with_monotonic_sequences",
"std::sync::mpsc::Receiver::recv_timeout",
2,
"sampler test completion fuse",
),
timing(
"telemetry",
"submit_text_owned_queues_owned_string",
"telemetry::TelemetrySubscription::recv_timeout",
1,
"telemetry test observation fuse",
),
timing(
"xtask",
"demo::feed::properties::generated_supervisor_transitions_are_once_only_nonblocking_and_clean::{closure#1}",
"std::sync::mpsc::Receiver::recv_timeout",
1,
"blocking-provider test completion fuse",
),
timing(
"actor-lint-test-wait-pass",
"bounded_observation_wait_is_allowed",
"std::sync::mpsc::Receiver::recv_timeout",
1,
"compiler policy pass fixture",
),
timing(
"actor-lint-timing-overage",
"exceeds_registered_timing_budget",
"std::sync::mpsc::Receiver::recv_timeout",
1,
"compiler policy overage fixture",
),
timing(
"swactor-vastai",
"test_http::serve",
"std::net::TcpStream::set_read_timeout",
1,
"test HTTP request completion fuse",
),
timing(
"telemetry",
"carry_over_real_socket",
"std::net::UdpSocket::set_read_timeout",
1,
"live telemetry socket completion fuse",
),
timing(
"python",
"context::PyTestDataPlaneHost::run_contextual_process",
"std::thread::sleep",
1,
"debug test-host contextual output poll interval",
),
];

198
tools/timeout-policy.py Executable file
View file

@ -0,0 +1,198 @@
#!/usr/bin/env python3
"""Reject unregistered Python timeout and sleep call sites."""
from __future__ import annotations
import ast
import sys
from collections import defaultdict
from dataclasses import dataclass
from pathlib import Path
ROOT = Path(__file__).resolve().parents[1]
SOURCE_ROOTS = ("apps", "crates", "src", "tests", "tools", "xtask")
SKIPPED_PARTS = {".venv", "__pycache__", "target"}
@dataclass(frozen=True)
class Allowance:
path: str
caller: str
callee: str
calls: int
purpose: str
ALLOWANCES = (
Allowance(
"apps/myelin/node-image/tinygrad_worker.py",
"fetch_whole",
"urllib.request.urlopen",
1,
"model download request deadline",
),
Allowance(
"apps/myelin/node-image/tinygrad_worker.py",
"CpuLineSampler._run",
"self._stop.wait",
1,
"cpu sampler poll interval",
),
Allowance(
"crates/bindings/python/tests/test_bootstrap.py",
"test_real_exec_attachment_and_blob_mapping",
"subprocess.run",
1,
"child-process test completion fuse",
),
)
class TimingVisitor(ast.NodeVisitor):
def __init__(self, path: str) -> None:
self.path = path
self.aliases: dict[str, str] = {}
self.scopes: list[str] = []
self.occurrences: defaultdict[tuple[str, str], int] = defaultdict(int)
self.violations: list[str] = []
def visit_Import(self, node: ast.Import) -> None:
for name in node.names:
if name.asname:
self.aliases[name.asname] = name.name
else:
root = name.name.split(".", 1)[0]
self.aliases[root] = root
def visit_ImportFrom(self, node: ast.ImportFrom) -> None:
if node.module is not None:
for name in node.names:
self.aliases[name.asname or name.name] = f"{node.module}.{name.name}"
def visit_ClassDef(self, node: ast.ClassDef) -> None:
self.scopes.append(node.name)
self.generic_visit(node)
self.scopes.pop()
def visit_FunctionDef(self, node: ast.FunctionDef) -> None:
self.scopes.append(node.name)
self.generic_visit(node)
self.scopes.pop()
def visit_AsyncFunctionDef(self, node: ast.AsyncFunctionDef) -> None:
self.scopes.append(node.name)
self.generic_visit(node)
self.scopes.pop()
def visit_Call(self, node: ast.Call) -> None:
callee = self._callee(node.func)
if callee is not None and self._is_guarded(node, callee):
caller = ".".join(self.scopes) or "<module>"
key = (caller, callee)
self.occurrences[key] += 1
occurrence = self.occurrences[key]
allowance = next(
(
item
for item in ALLOWANCES
if item.path == self.path
and item.caller == caller
and item.callee == callee
),
None,
)
if allowance is None:
self.violations.append(
f"{self.path}:{node.lineno}: unapproved timing primitive "
f"`{callee}` in `{caller}`"
)
elif occurrence > allowance.calls:
self.violations.append(
f"{self.path}:{node.lineno}: timing occurrence {occurrence} exceeds "
f"the {allowance.calls} audited call(s) in `{caller}` "
f"(`{allowance.purpose}`)"
)
self.generic_visit(node)
def _callee(self, node: ast.expr) -> str | None:
parts: list[str] = []
while isinstance(node, ast.Attribute):
parts.append(node.attr)
node = node.value
if not isinstance(node, ast.Name):
return None
root = self.aliases.get(node.id, node.id)
return ".".join((root, *reversed(parts)))
@staticmethod
def _is_guarded(node: ast.Call, callee: str) -> bool:
if any(keyword.arg == "timeout" for keyword in node.keywords):
return True
return callee in {"asyncio.sleep", "asyncio.wait_for", "time.sleep"} or callee.endswith(
(".set_read_timeout", ".set_write_timeout", ".settimeout", ".wait")
)
def python_sources() -> list[Path]:
sources: list[Path] = []
for source_root in SOURCE_ROOTS:
for path in (ROOT / source_root).rglob("*.py"):
if not SKIPPED_PARTS.intersection(path.parts):
sources.append(path)
return sorted(sources)
def check_source(path: Path) -> list[str]:
relative = path.relative_to(ROOT).as_posix()
source = path.read_text(encoding="utf-8")
syntax = ast.parse(source, filename=relative)
visitor = TimingVisitor(relative)
visitor.visit(syntax)
return visitor.violations
def self_test() -> None:
visitor = TimingVisitor("probe.py")
visitor.visit(ast.parse("import time as clock\ndef work():\n clock.sleep(1)\n"))
assert visitor.violations == [
"probe.py:3: unapproved timing primitive `time.sleep` in `work`"
]
overage = TimingVisitor("crates/bindings/python/tests/test_bootstrap.py")
overage.visit(
ast.parse(
"import subprocess\n"
"def test_real_exec_attachment_and_blob_mapping():\n"
" subprocess.run([], timeout=1)\n"
" subprocess.run([], timeout=1)\n"
)
)
assert overage.violations == [
"crates/bindings/python/tests/test_bootstrap.py:4: timing occurrence 2 "
"exceeds the 1 audited call(s) in "
"`test_real_exec_attachment_and_blob_mapping` "
"(`child-process test completion fuse`)"
]
def main() -> int:
if sys.argv[1:] == ["--self-test"]:
self_test()
return 0
if sys.argv[1:]:
print("usage: timeout-policy.py [--self-test]", file=sys.stderr)
return 2
self_test()
violations = [violation for path in python_sources() for violation in check_source(path)]
if violations:
print("Python timeout policy violations:", file=sys.stderr)
print("\n".join(violations), file=sys.stderr)
return 1
print("python-timeout-policy: OK")
return 0
if __name__ == "__main__":
raise SystemExit(main())

3
tools/vastai/src/logs.rs
View file

@ -1,5 +1,3 @@
use std::time::Duration;
pub async fn request_logs(
client: &reqwest::Client,
base_url: &str,
@ -24,7 +22,6 @@ pub async fn request_logs(
}
pub async fn fetch_logs(client: &reqwest::Client, log_url: &str) -> Result<String, String> {
tokio::time::sleep(Duration::from_secs(5)).await;
let resp = client
.get(log_url)
.send()

15
tools/vastai/src/test_http.rs
View file

@ -55,9 +55,6 @@ impl TestHttpServer {
pub fn start(routes: Vec<TestHttpRoute>) -> Result<Self, String> {
let listener = TcpListener::bind(("127.0.0.1", 0))
.map_err(|error| format!("bind test HTTP server: {error}"))?;
listener
.set_nonblocking(true)
.map_err(|error| format!("configure test HTTP server: {error}"))?;
let address = listener
.local_addr()
.map_err(|error| format!("read test HTTP address: {error}"))?;
@ -66,14 +63,11 @@ impl TestHttpServer {
let thread_requests = Arc::clone(&requests);
let thread_stop = Arc::clone(&stop);
let join = std::thread::spawn(move || {
while !thread_stop.load(Ordering::Acquire) {
match listener.accept() {
Ok((stream, _)) => serve(stream, &routes, &thread_requests),
Err(error) if error.kind() == std::io::ErrorKind::WouldBlock => {
std::thread::sleep(Duration::from_millis(5));
}
Err(_) => break,
while let Ok((stream, _)) = listener.accept() {
if thread_stop.load(Ordering::Acquire) {
break;
}
serve(stream, &routes, &thread_requests);
}
});
Ok(Self {
@ -96,6 +90,7 @@ impl TestHttpServer {
impl Drop for TestHttpServer {
fn drop(&mut self) {
self.stop.store(true, Ordering::Release);
let _ = TcpStream::connect(self.address);
if let Some(join) = self.join.take() {
let _ = join.join();
}

32
xtask/src/main.rs
View file

@ -13,7 +13,7 @@ const TEST_STEPS: &[TestStep] = &[
args: &["lint"],
},
TestStep {
label: "all Rust tests (60s per-test timeout)",
label: "all Rust tests (180s per-test timeout)",
args: &["nextest", "run", "--workspace", "--all-features"],
},
TestStep {
@ -82,6 +82,7 @@ COMMANDS:
Run the visual provisioning-reconciler demo.
check-telemetry-isolation
Verify no frame types appear in control-plane modules.
lint Run the Python timeout policy and strict workspace Clippy.
test Run strict lint plus every Rust and Python test."
);
}
@ -138,6 +139,31 @@ fn run_tests() -> ExitCode {
ExitCode::SUCCESS
}
fn run_lint() -> ExitCode {
let policy = workspace_root().join("tools/timeout-policy.py");
let policy_status = swactor_process::command_status(Command::new("python3").arg(policy));
if !policy_status.is_ok_and(|status| status.success()) {
return ExitCode::from(1);
}
let mut clippy = cargo_command();
clippy.args(["clippy", "--workspace", "--all-targets", "--all-features"]);
// Pin pyo3 to the same interpreter the Python test flow uses: a newer
// system python exceeds the bundled pyo3's supported maximum and would
// fail the workspace build here even though tests build fine.
if let Some(tools) = PythonTestTools::discover() {
clippy.env("PYO3_PYTHON", tools.python);
}
match swactor_process::command_status(&mut clippy) {
Ok(status) if status.success() => ExitCode::SUCCESS,
Ok(_) => ExitCode::from(1),
Err(error) => {
eprintln!("Failed to execute cargo clippy: {error}");
ExitCode::from(1)
}
}
}
fn nextest_available() -> bool {
let available = swactor_process::command_status(
cargo_command()
@ -185,7 +211,8 @@ impl PythonTestTools {
build_command
.current_dir(&self.directory)
.arg("develop")
.env("PYO3_PYTHON", &self.python),
.arg("--features")
.arg("test-host"),
)
.is_ok_and(|status| status.success());
if !built {
@ -298,6 +325,7 @@ fn main() -> ExitCode {
ExitCode::from(1)
}
}
Some("lint") if args.next().is_none() => run_lint(),
Some("test") if args.next().is_none() => run_tests(),
Some("demo") => demo::run(&args.collect::<Vec<_>>()),
Some("help" | "--help" | "-h") | None => {