Files
rustfs/crates/notify/src/notifier.rs
T
cxymds 1655f3192e fix(notify): unify runtime lifecycle coordination (#5088)
* fix(notify): unify runtime lifecycle coordination

* fix(notify): repair lifecycle convergence checks

* fix(admin): expose effective notify state (#5097)
2026-07-22 05:01:15 +00:00

1481 lines
58 KiB
Rust

// Copyright 2024 RustFS Team
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
use crate::error::NotificationError;
use crate::{event::Event, integration::NotificationMetrics, rule_engine::NotifyRuleEngine};
use rustfs_config::notify::{DEFAULT_NOTIFY_SEND_CONCURRENCY, ENV_NOTIFY_SEND_CONCURRENCY};
use rustfs_targets::Target;
use rustfs_targets::arn::TargetID;
use rustfs_targets::target::EntityTarget;
use rustfs_targets::{SharedTarget, TargetRuntimeManager};
use std::collections::HashMap;
use std::sync::{Arc, LazyLock, Mutex as StdMutex, Weak};
use tokio::sync::{RwLock, Semaphore, watch};
use tokio::task::JoinHandle;
use tokio_util::sync::CancellationToken;
use tracing::{debug, error, info, instrument, warn};
const LOG_COMPONENT_NOTIFY: &str = "notify";
const LOG_SUBSYSTEM_DISPATCH: &str = "dispatch";
const EVENT_NOTIFY_DISPATCH_SKIPPED: &str = "notify_dispatch_skipped";
const EVENT_NOTIFY_DISPATCH_FAILED: &str = "notify_dispatch_failed";
const EVENT_NOTIFY_DISPATCH_STARTED: &str = "notify_dispatch_started";
const EVENT_NOTIFY_DISPATCH_COMPLETED: &str = "notify_dispatch_completed";
const EVENT_NOTIFY_RUNTIME_LIFECYCLE: &str = "notify_runtime_lifecycle";
async fn wait_for_dispatch_tasks(handles: Vec<JoinHandle<()>>) {
for handle in handles {
if let Err(e) = handle.await {
let reason = if e.is_cancelled() { "join_cancelled" } else { "join_panicked" };
error!(
event = EVENT_NOTIFY_DISPATCH_FAILED,
component = LOG_COMPONENT_NOTIFY,
subsystem = LOG_SUBSYSTEM_DISPATCH,
reason,
"Notify dispatch task failed"
);
}
}
}
pub type SharedNotifyTargetList = Arc<RwLock<TargetList>>;
static TARGET_LIST_DISPATCH_GATES: LazyLock<StdMutex<HashMap<usize, Weak<RwLock<()>>>>> =
LazyLock::new(|| StdMutex::new(HashMap::new()));
pub(crate) fn shared_dispatch_gate(target_list: &SharedNotifyTargetList, preferred: Option<Arc<RwLock<()>>>) -> Arc<RwLock<()>> {
let key = Arc::as_ptr(target_list) as usize;
let mut gates = TARGET_LIST_DISPATCH_GATES.lock().unwrap_or_else(|err| err.into_inner());
gates.retain(|_, gate| gate.strong_count() != 0);
if let Some(gate) = gates.get(&key).and_then(Weak::upgrade) {
return gate;
}
let gate = preferred.unwrap_or_else(|| Arc::new(RwLock::new(())));
gates.insert(key, Arc::downgrade(&gate));
gate
}
pub(crate) struct DirectDispatchTracker {
cancellation: CancellationToken,
inflight: watch::Sender<usize>,
}
impl DirectDispatchTracker {
fn new() -> Self {
let (inflight, _) = watch::channel(0);
Self {
cancellation: CancellationToken::new(),
inflight,
}
}
fn acquire(self: &Arc<Self>) -> DirectDispatchLease {
self.inflight.send_modify(|count| *count += 1);
DirectDispatchLease {
tracker: Arc::clone(self),
}
}
pub(crate) async fn wait_idle(&self) {
let mut inflight = self.inflight.subscribe();
while *inflight.borrow_and_update() != 0 {
if inflight.changed().await.is_err() {
return;
}
}
}
fn cancel_pending(&self) {
self.cancellation.cancel();
}
}
struct DirectDispatchLease {
tracker: Arc<DirectDispatchTracker>,
}
impl DirectDispatchLease {
fn cancellation(&self) -> CancellationToken {
self.tracker.cancellation.clone()
}
}
impl Drop for DirectDispatchLease {
fn drop(&mut self) {
self.tracker.inflight.send_modify(|count| {
if let Some(next) = count.checked_sub(1) {
*count = next;
} else {
error!(
event = EVENT_NOTIFY_DISPATCH_FAILED,
component = LOG_COMPONENT_NOTIFY,
subsystem = LOG_SUBSYSTEM_DISPATCH,
reason = "direct_lease_underflow",
"Notify direct dispatch lease accounting underflowed"
);
}
});
}
}
/// Resolves the effective send concurrency (semaphore permit count).
///
/// A value of `0` would build a zero-permit semaphore, so `acquire` never
/// completes and every dispatch deadlocks. A misconfigured
/// `RUSTFS_NOTIFY_SEND_CONCURRENCY=0` therefore coerces back to the default
/// instead of silently wedging notifications (backlog#984).
fn resolve_send_concurrency() -> usize {
let configured = rustfs_utils::get_env_usize(ENV_NOTIFY_SEND_CONCURRENCY, DEFAULT_NOTIFY_SEND_CONCURRENCY);
coerce_send_concurrency(configured)
}
/// Coerces a configured send concurrency into a valid semaphore permit count.
/// `0` maps back to the default; any positive value is passed through. Kept as a
/// pure function so the coercion is unit-testable without mutating process env.
fn coerce_send_concurrency(configured: usize) -> usize {
if configured == 0 {
warn!(
event = EVENT_NOTIFY_RUNTIME_LIFECYCLE,
component = LOG_COMPONENT_NOTIFY,
subsystem = LOG_SUBSYSTEM_DISPATCH,
configured,
default = DEFAULT_NOTIFY_SEND_CONCURRENCY,
"invalid RUSTFS_NOTIFY_SEND_CONCURRENCY=0; falling back to default to avoid a zero-permit deadlock"
);
DEFAULT_NOTIFY_SEND_CONCURRENCY
} else {
configured
}
}
/// Manages event notification to targets based on rules
pub struct EventNotifier {
dispatch_gate: Arc<RwLock<()>>,
enqueue_limiter: Arc<Semaphore>,
metrics: Arc<NotificationMetrics>,
rule_engine: NotifyRuleEngine,
target_list: SharedNotifyTargetList,
send_limiter: Arc<Semaphore>,
}
impl Default for EventNotifier {
fn default() -> Self {
Self::new(Arc::new(NotificationMetrics::new()), NotifyRuleEngine::new())
}
}
impl EventNotifier {
/// Creates a new EventNotifier
///
/// # Returns
/// Returns a new instance of EventNotifier.
pub fn new(metrics: Arc<NotificationMetrics>, rule_engine: NotifyRuleEngine) -> Self {
let max_inflight = resolve_send_concurrency();
let target_list = Arc::new(RwLock::new(TargetList::new()));
let dispatch_gate = shared_dispatch_gate(&target_list, None);
EventNotifier {
dispatch_gate,
enqueue_limiter: Arc::new(Semaphore::new(max_inflight)),
metrics,
rule_engine,
target_list,
send_limiter: Arc::new(Semaphore::new(max_inflight)),
}
}
/// Returns a reference to the target list
/// This method provides access to the target list for external use.
///
/// # Returns
/// Returns an `Arc<RwLock<TargetList>>` representing the target list.
pub fn target_list(&self) -> SharedNotifyTargetList {
Arc::clone(&self.target_list)
}
pub(crate) fn dispatch_gate(&self) -> Arc<RwLock<()>> {
self.dispatch_gate.clone()
}
/// Returns a list of ARNs for the registered targets
///
/// # Arguments
/// * `region` - The region to use for generating the ARNs
///
/// # Returns
/// Returns a vector of strings representing the ARNs of the registered targets
pub async fn get_arn_list(&self, region: &str) -> Vec<String> {
let target_list_guard = self.target_list.read().await;
target_list_guard
.keys()
.iter()
.map(|target_id| target_id.to_arn(region).to_string())
.collect()
}
pub async fn remove_all_bucket_targets(&self) {
let mut target_list_guard = self.target_list.write().await;
target_list_guard.clear_targets_only().await;
info!(
event = EVENT_NOTIFY_RUNTIME_LIFECYCLE,
component = LOG_COMPONENT_NOTIFY,
subsystem = LOG_SUBSYSTEM_DISPATCH,
state = "targets_cleared",
"notify runtime lifecycle"
);
}
/// Sends an event to the appropriate targets based on the bucket rules
///
/// # Arguments
/// * `event` - The event to send
#[instrument(skip_all)]
pub async fn send(&self, event: Arc<Event>) {
let bucket_name = &event.s3.bucket.name;
let object_key = &event.s3.object.key;
let event_name = event.event_name;
let target_ids = self.rule_engine.match_targets(bucket_name, event_name, object_key).await;
if target_ids.is_empty() {
debug!(
event = EVENT_NOTIFY_DISPATCH_SKIPPED,
component = LOG_COMPONENT_NOTIFY,
subsystem = LOG_SUBSYSTEM_DISPATCH,
bucket = %bucket_name,
object = %object_key,
reason = "no_matching_targets",
"Skipped notify dispatch"
);
self.metrics.increment_skipped();
return;
}
let target_ids_len = target_ids.len();
let mut deferred_handles = Vec::new();
let mut direct_handles = Vec::new();
// A lifecycle writer holds this gate only while handing queue-store
// ownership from one runtime generation to the next. Taking the read
// guard before cloning targets means the writer both blocks new sends
// and drains every save already using the old generation.
let dispatch_guard = Arc::new(self.dispatch_gate.clone().read_owned().await);
// Use scope to limit the borrow scope of target_list
let target_list_guard = self.target_list.read().await;
debug!(
event = EVENT_NOTIFY_DISPATCH_STARTED,
component = LOG_COMPONENT_NOTIFY,
subsystem = LOG_SUBSYSTEM_DISPATCH,
bucket = %bucket_name,
object = %object_key,
target_count = target_ids_len,
"notify dispatch"
);
for target_id in target_ids {
// `get` now returns Option<Arc<dyn Target + Send + Sync>>
if let Some(target_arc) = target_list_guard.get(&target_id) {
// Clone an Arc<Box<dyn Target>> (which is where target_list is stored) to move into an asynchronous task
// target_arc is already Arc, clone it for the async task
let target_for_task = target_arc.clone();
if !target_for_task.is_enabled() {
debug!(
event = EVENT_NOTIFY_DISPATCH_SKIPPED,
component = LOG_COMPONENT_NOTIFY,
subsystem = LOG_SUBSYSTEM_DISPATCH,
target_id = %target_for_task.id(),
reason = "target_disabled",
"Skipped notify dispatch target"
);
continue;
}
let is_deferred = target_for_task.store().is_some();
let direct_dispatch_lease = (!is_deferred).then(|| target_list_guard.direct_dispatch_lease());
let direct_cancellation = direct_dispatch_lease.as_ref().map(DirectDispatchLease::cancellation);
let deferred_dispatch_guard = is_deferred.then(|| Arc::clone(&dispatch_guard));
let limiter = if is_deferred {
self.enqueue_limiter.clone()
} else {
self.send_limiter.clone()
};
let metrics = self.metrics.clone();
let event_clone = event.clone();
let target_name_for_task = target_for_task.name(); // Get the name before generating the task
debug!(
event = EVENT_NOTIFY_DISPATCH_STARTED,
component = LOG_COMPONENT_NOTIFY,
subsystem = LOG_SUBSYSTEM_DISPATCH,
target_id = %target_for_task.id(),
deferred = is_deferred,
"notify dispatch"
);
// Use cloned data in closures to avoid borrowing conflicts
// Create an EntityTarget from the event
let entity_target: Arc<EntityTarget<Event>> = Arc::new(EntityTarget {
object_name: object_key.to_string(),
bucket_name: bucket_name.to_string(),
event_name,
data: event_clone.as_ref().clone(),
});
let handle = tokio::spawn(async move {
let _direct_dispatch_lease = direct_dispatch_lease;
let _deferred_dispatch_guard = deferred_dispatch_guard;
metrics.increment_processing();
let permit = if let Some(cancellation) = direct_cancellation {
tokio::select! {
biased;
_ = cancellation.cancelled() => {
metrics.decrement_processing();
metrics.increment_skipped();
debug!(
event = EVENT_NOTIFY_DISPATCH_SKIPPED,
component = LOG_COMPONENT_NOTIFY,
subsystem = LOG_SUBSYSTEM_DISPATCH,
target_id = %target_name_for_task,
reason = "runtime_generation_replaced",
"Skipped pending direct notify dispatch"
);
return;
}
permit = limiter.acquire_owned() => permit,
}
} else {
limiter.acquire_owned().await
};
let _permit = match permit {
Ok(permit) => permit,
Err(e) => {
error!(
event = EVENT_NOTIFY_DISPATCH_FAILED,
component = LOG_COMPONENT_NOTIFY,
subsystem = LOG_SUBSYSTEM_DISPATCH,
target_id = %target_name_for_task,
error = %e,
reason = "permit_acquire_failed",
"Failed to acquire notify dispatch permit"
);
metrics.increment_failed();
return;
}
};
if let Err(e) = target_for_task.save(entity_target.clone()).await {
metrics.increment_failed();
error!(
event = EVENT_NOTIFY_DISPATCH_FAILED,
component = LOG_COMPONENT_NOTIFY,
subsystem = LOG_SUBSYSTEM_DISPATCH,
target_id = %target_name_for_task,
error = %e,
reason = "send_failed",
"Failed to dispatch notify event"
);
} else {
// Counting lifecycle (backlog#979): `increment_processing` above marks
// the event as in-flight exactly once. For a non-deferred target, `save`
// performs synchronous delivery, so the event is fully processed here and
// we transition it from processing to processed. For a deferred
// (store-backed) target, `save` only enqueues the event to the store: it
// stays in-flight until the replay worker actually delivers it and emits
// `ReplayEvent::Delivered`, which is the single place that calls
// `increment_processed` for that event. Decrementing `processing_events`
// here as well would double-count the completion and underflow the
// counter back to `usize::MAX`, corrupting metrics and any in-flight
// backpressure decisions.
if !is_deferred {
metrics.increment_processed();
}
debug!(
event = EVENT_NOTIFY_DISPATCH_COMPLETED,
component = LOG_COMPONENT_NOTIFY,
subsystem = LOG_SUBSYSTEM_DISPATCH,
target_id = %target_name_for_task,
deferred = is_deferred,
"notify dispatch"
);
}
});
if is_deferred {
deferred_handles.push(handle);
} else {
direct_handles.push(handle);
}
} else {
warn!(
event = EVENT_NOTIFY_DISPATCH_FAILED,
component = LOG_COMPONENT_NOTIFY,
subsystem = LOG_SUBSYSTEM_DISPATCH,
target_id = %target_id,
reason = "target_missing_from_runtime",
"Matched notify target is missing from runtime"
);
self.metrics.increment_skipped();
}
}
// target_list is automatically released here
drop(target_list_guard);
// Every store-backed save owns a share of the generation guard, so
// caller cancellation cannot race lifecycle handoff with an enqueue.
// Direct targets own no queue store and may finish against the detached
// target while lifecycle progresses.
drop(dispatch_guard);
wait_for_dispatch_tasks(deferred_handles).await;
wait_for_dispatch_tasks(direct_handles).await;
debug!(
event = EVENT_NOTIFY_DISPATCH_COMPLETED,
component = LOG_COMPONENT_NOTIFY,
subsystem = LOG_SUBSYSTEM_DISPATCH,
bucket = %bucket_name,
target_count = target_ids_len,
"notify dispatch"
);
}
/// Initializes the targets for buckets from shared target handles.
#[instrument(skip(self, targets_to_init))]
pub async fn init_bucket_targets_shared(&self, targets_to_init: Vec<SharedTarget<Event>>) -> Result<(), NotificationError> {
let mut target_list_guard = self.target_list.write().await;
// Close the currently registered targets before replacing them. A bare
// `clear()` drops the old targets without invoking `close()`, leaking their
// connections/streams; `clear_targets_only` closes each one first (backlog#984).
target_list_guard.clear_targets_only().await;
for target in targets_to_init {
debug!(
event = EVENT_NOTIFY_RUNTIME_LIFECYCLE,
component = LOG_COMPONENT_NOTIFY,
subsystem = LOG_SUBSYSTEM_DISPATCH,
state = "target_init",
target_id = %target.id(),
"Initializing notify runtime target"
);
target_list_guard.add(target)?;
}
tracing::info!(
event = EVENT_NOTIFY_RUNTIME_LIFECYCLE,
component = LOG_COMPONENT_NOTIFY,
subsystem = LOG_SUBSYSTEM_DISPATCH,
state = "targets_initialized",
target_count = target_list_guard.len(),
"notify runtime lifecycle"
);
Ok(())
}
}
/// A thread-safe list of targets
pub struct TargetList {
direct_dispatches: Arc<DirectDispatchTracker>,
/// Map of TargetID to Target
runtime: TargetRuntimeManager<Event>,
}
impl Default for TargetList {
fn default() -> Self {
Self::new()
}
}
impl TargetList {
/// Creates a new TargetList
pub fn new() -> Self {
TargetList {
direct_dispatches: Arc::new(DirectDispatchTracker::new()),
runtime: TargetRuntimeManager::new(),
}
}
/// Adds a target to the list
///
/// # Arguments
/// * `target` - The target to add
///
/// # Returns
/// Returns `Ok(())` if the target was added successfully, or a `NotificationError` if an error occurred.
pub fn add(&mut self, target: Arc<dyn Target<Event> + Send + Sync>) -> Result<(), NotificationError> {
let id = target.id();
if self.runtime.get_by_target_id(&id).is_some() {
// Potentially update or log a warning/error if replacing an existing target.
warn!(
event = EVENT_NOTIFY_RUNTIME_LIFECYCLE,
component = LOG_COMPONENT_NOTIFY,
subsystem = LOG_SUBSYSTEM_DISPATCH,
state = "target_overwrite",
target_id = %id,
"Overwriting existing notify runtime target"
);
}
self.runtime.add_arc(target);
Ok(())
}
/// Clears all targets from the list
pub fn clear(&mut self) {
self.runtime.clear();
}
/// Removes a target by ID. Note: This does not stop its associated event stream.
/// Stream cancellation should be handled by EventNotifier.
///
/// # Arguments
/// * `id` - The ID of the target to remove
///
/// # Returns
/// Returns the removed target if it existed, otherwise `None`.
pub async fn remove_target_only(&mut self, id: &TargetID) -> Option<SharedTarget<Event>> {
self.runtime.remove_by_target_id_and_close(id).await
}
/// Clears all targets from the list. Note: This does not stop their associated event streams.
/// Stream cancellation should be handled by EventNotifier.
pub async fn clear_targets_only(&mut self) {
self.runtime.clear_and_close().await;
}
/// Returns a target by ID
///
/// # Arguments
/// * `id` - The ID of the target to retrieve
///
/// # Returns
/// Returns the target if it exists, otherwise `None`.
pub fn get(&self, id: &TargetID) -> Option<SharedTarget<Event>> {
self.runtime.get_by_target_id(id)
}
/// Returns all target IDs
pub fn keys(&self) -> Vec<TargetID> {
self.runtime.target_ids()
}
/// Returns all targets in the list
pub fn values(&self) -> Vec<SharedTarget<Event>> {
self.runtime.values()
}
pub fn runtime_snapshots(&self) -> Vec<rustfs_targets::RuntimeTargetSnapshot> {
self.runtime.snapshots()
}
pub async fn runtime_health_snapshots(&self) -> Vec<rustfs_targets::RuntimeTargetHealthSnapshot> {
self.runtime.health_snapshots().await
}
pub fn runtime_status_snapshot(
&self,
replay_workers: &rustfs_targets::ReplayWorkerManager,
) -> rustfs_targets::RuntimeStatusSnapshot {
self.runtime.status_snapshot(replay_workers)
}
fn direct_dispatch_lease(&self) -> DirectDispatchLease {
self.direct_dispatches.acquire()
}
pub(crate) fn replace_runtime(
&mut self,
replacement: TargetRuntimeManager<Event>,
) -> (TargetRuntimeManager<Event>, Arc<DirectDispatchTracker>) {
let runtime = std::mem::replace(&mut self.runtime, replacement);
let direct_dispatches = std::mem::replace(&mut self.direct_dispatches, Arc::new(DirectDispatchTracker::new()));
direct_dispatches.cancel_pending();
(runtime, direct_dispatches)
}
pub fn runtime_mut(&mut self) -> &mut TargetRuntimeManager<Event> {
&mut self.runtime
}
/// Returns the number of targets
pub fn len(&self) -> usize {
self.runtime.len()
}
/// is_empty can be derived from len()
pub fn is_empty(&self) -> bool {
self.runtime.is_empty()
}
}
#[cfg(test)]
mod tests {
use super::*;
use crate::{rule_engine::NotifyRuleEngine, rules::RulesMap};
use async_trait::async_trait;
use rustfs_s3_types::EventName;
use rustfs_targets::StoreError;
use rustfs_targets::{
ReplayWorkerManager, TargetError,
store::{Key, QueueStore, Store},
target::{EntityTarget, QueuedPayload, QueuedPayloadMeta},
};
use std::sync::{
Arc,
atomic::{AtomicUsize, Ordering},
};
use tokio::sync::Notify;
#[tokio::test]
async fn encoded_event_key_matches_raw_prefix_suffix_filter() {
let target_id = TargetID::new("primary".to_string(), "webhook".to_string());
let mut rules_map = RulesMap::new();
rules_map.add_rule_config(&[EventName::ObjectCreatedPut], "uploads/*.csv".to_string(), target_id.clone());
let rule_engine = NotifyRuleEngine::new();
rule_engine.set_bucket_rules("test-bucket", rules_map).await;
let targets = rule_engine
.match_targets("test-bucket", EventName::ObjectCreatedPut, "uploads%2Freport.csv")
.await;
assert!(targets.contains(&target_id));
}
#[tokio::test]
async fn encoded_event_key_matches_raw_and_decoded_rule_targets() {
let raw_target = TargetID::new("raw".to_string(), "webhook".to_string());
let decoded_target = TargetID::new("decoded".to_string(), "webhook".to_string());
let mut rules_map = RulesMap::new();
rules_map.add_rule_config(&[EventName::ObjectCreatedPut], "uploads%2F*.csv".to_string(), raw_target.clone());
rules_map.add_rule_config(&[EventName::ObjectCreatedPut], "uploads/*.csv".to_string(), decoded_target.clone());
let rule_engine = NotifyRuleEngine::new();
rule_engine.set_bucket_rules("test-bucket", rules_map).await;
let targets = rule_engine
.match_targets("test-bucket", EventName::ObjectCreatedPut, "uploads%2Freport.csv")
.await;
assert_eq!(targets.len(), 2);
assert!(targets.contains(&raw_target));
assert!(targets.contains(&decoded_target));
}
#[tokio::test]
async fn encoded_event_key_does_not_bypass_suffix_filter() {
let target_id = TargetID::new("primary".to_string(), "webhook".to_string());
let mut rules_map = RulesMap::new();
rules_map.add_rule_config(&[EventName::ObjectCreatedPut], "uploads/*.csv".to_string(), target_id);
let rule_engine = NotifyRuleEngine::new();
rule_engine.set_bucket_rules("test-bucket", rules_map).await;
let root_targets = rule_engine
.match_targets("test-bucket", EventName::ObjectCreatedPut, "report.csv")
.await;
let suffix_targets = rule_engine
.match_targets("test-bucket", EventName::ObjectCreatedPut, "uploads%2Freport.txt")
.await;
assert!(root_targets.is_empty());
assert!(suffix_targets.is_empty());
}
#[derive(Clone)]
struct TestTarget {
block_first_save: Option<(Arc<Notify>, Arc<Notify>)>,
close_calls: Arc<AtomicUsize>,
close_entered: Option<Arc<Notify>>,
id: TargetID,
enabled: bool,
save_calls: Arc<AtomicUsize>,
selected_calls: Arc<AtomicUsize>,
store: Option<QueueStore<QueuedPayload>>,
}
impl TestTarget {
fn new(id: &str, name: &str, enabled: bool) -> Self {
Self {
block_first_save: None,
close_calls: Arc::new(AtomicUsize::new(0)),
close_entered: None,
id: TargetID::new(id.to_string(), name.to_string()),
enabled,
save_calls: Arc::new(AtomicUsize::new(0)),
selected_calls: Arc::new(AtomicUsize::new(0)),
store: None,
}
}
fn with_blocked_first_save(mut self, entered: Arc<Notify>, release: Arc<Notify>) -> Self {
self.block_first_save = Some((entered, release));
self
}
fn with_store(mut self, store: QueueStore<QueuedPayload>) -> Self {
self.store = Some(store);
self
}
fn with_close_observer(mut self, close_entered: Arc<Notify>) -> Self {
self.close_entered = Some(close_entered);
self
}
}
#[async_trait]
impl<E> Target<E> for TestTarget
where
E: rustfs_targets::PluginEvent,
{
fn id(&self) -> TargetID {
self.id.clone()
}
async fn is_active(&self) -> Result<bool, TargetError> {
Ok(self.enabled)
}
async fn save(&self, _event: Arc<EntityTarget<E>>) -> Result<(), TargetError> {
let call = self.save_calls.fetch_add(1, Ordering::SeqCst);
if call == 0
&& let Some((entered, release)) = &self.block_first_save
{
entered.notify_one();
release.notified().await;
}
Ok(())
}
async fn send_raw_from_store(&self, _key: Key, _body: Vec<u8>, _meta: QueuedPayloadMeta) -> Result<(), TargetError> {
Ok(())
}
async fn close(&self) -> Result<(), TargetError> {
self.close_calls.fetch_add(1, Ordering::SeqCst);
if let Some(close_entered) = &self.close_entered {
close_entered.notify_one();
}
Ok(())
}
fn store(&self) -> Option<&(dyn Store<QueuedPayload, Error = StoreError, Key = Key> + Send + Sync)> {
self.store
.as_ref()
.map(|store| store as &(dyn Store<QueuedPayload, Error = StoreError, Key = Key> + Send + Sync))
}
fn clone_dyn(&self) -> Box<dyn Target<E> + Send + Sync> {
let cloned = self.clone();
Box::new(cloned)
}
async fn init(&self) -> Result<(), TargetError> {
Ok(())
}
fn is_enabled(&self) -> bool {
self.selected_calls.fetch_add(1, Ordering::SeqCst);
self.enabled
}
}
#[tokio::test]
async fn lifecycle_pause_drains_entered_deferred_dispatch_and_blocks_new_dispatch() {
let metrics = Arc::new(NotificationMetrics::new());
let rule_engine = NotifyRuleEngine::new();
let notifier = Arc::new(EventNotifier::new(metrics.clone(), rule_engine.clone()));
let save_entered = Arc::new(Notify::new());
let save_release = Arc::new(Notify::new());
let queue_dir = tempfile::tempdir().expect("queue tempdir should be created");
let target = TestTarget::new("gated-target", "webhook", true)
.with_blocked_first_save(save_entered.clone(), save_release.clone())
.with_store(QueueStore::new(queue_dir.path(), 16, ".event"));
let mut rules_map = RulesMap::new();
rules_map.add_rule_config(&[EventName::ObjectCreatedPut], "*".to_string(), target.id.clone());
rule_engine.set_bucket_rules("bucket", rules_map).await;
notifier
.target_list()
.write()
.await
.add(Arc::new(target.clone()))
.expect("target install should succeed");
let facade = crate::runtime_facade::NotifyRuntimeFacade::new_with_dispatch_gate(
notifier.target_list(),
Arc::new(RwLock::new(ReplayWorkerManager::new())),
notifier.dispatch_gate(),
Arc::new(Semaphore::new(1)),
metrics,
);
let first_dispatch = tokio::spawn({
let notifier = notifier.clone();
async move {
notifier
.send(Arc::new(Event::new_test_event("bucket", "first", EventName::ObjectCreatedPut)))
.await;
}
});
save_entered.notified().await;
assert_eq!(target.save_calls.load(Ordering::SeqCst), 1);
let mut pause = Box::pin(facade.pause_dispatch());
tokio::select! {
biased;
_ = &mut pause => panic!("lifecycle pause crossed an in-flight dispatch"),
_ = std::future::ready(()) => {}
}
save_release.notify_one();
first_dispatch.await.expect("first dispatch task should finish");
let pause_guard = pause.await;
let replacement = TestTarget::new("gated-target", "webhook", true);
{
let target_list = notifier.target_list();
let mut target_list = target_list.write().await;
target_list.clear();
target_list
.add(Arc::new(replacement.clone()))
.expect("replacement target install should succeed");
}
let mut second_dispatch =
Box::pin(notifier.send(Arc::new(Event::new_test_event("bucket", "second", EventName::ObjectCreatedPut))));
tokio::select! {
biased;
_ = &mut second_dispatch => panic!("dispatch crossed the lifecycle pause"),
_ = std::future::ready(()) => {}
}
assert_eq!(
replacement.selected_calls.load(Ordering::SeqCst),
0,
"a paused dispatch must not select a target from the replacement generation early"
);
assert_eq!(target.save_calls.load(Ordering::SeqCst), 1);
assert_eq!(replacement.save_calls.load(Ordering::SeqCst), 0);
drop(pause_guard);
second_dispatch.await;
assert_eq!(target.selected_calls.load(Ordering::SeqCst), 1);
assert_eq!(target.save_calls.load(Ordering::SeqCst), 1);
assert_eq!(replacement.selected_calls.load(Ordering::SeqCst), 1);
assert_eq!(replacement.save_calls.load(Ordering::SeqCst), 1);
}
#[tokio::test]
async fn lifecycle_pause_does_not_wait_for_direct_network_dispatch() {
let metrics = Arc::new(NotificationMetrics::new());
let rule_engine = NotifyRuleEngine::new();
let notifier = Arc::new(EventNotifier::new(metrics.clone(), rule_engine.clone()));
let save_entered = Arc::new(Notify::new());
let save_release = Arc::new(Notify::new());
let target =
TestTarget::new("direct-target", "webhook", true).with_blocked_first_save(save_entered.clone(), save_release.clone());
let mut rules_map = RulesMap::new();
rules_map.add_rule_config(&[EventName::ObjectCreatedPut], "*".to_string(), target.id.clone());
rule_engine.set_bucket_rules("bucket", rules_map).await;
notifier
.target_list()
.write()
.await
.add(Arc::new(target))
.expect("target install should succeed");
let facade = crate::runtime_facade::NotifyRuntimeFacade::new_with_dispatch_gate(
notifier.target_list(),
Arc::new(RwLock::new(ReplayWorkerManager::new())),
notifier.dispatch_gate(),
Arc::new(Semaphore::new(1)),
metrics,
);
let dispatch = tokio::spawn({
let notifier = notifier.clone();
async move {
notifier
.send(Arc::new(Event::new_test_event("bucket", "object", EventName::ObjectCreatedPut)))
.await;
}
});
save_entered.notified().await;
let mut pause = Box::pin(facade.pause_dispatch());
let pause_guard = tokio::select! {
biased;
guard = &mut pause => guard,
_ = std::future::ready(()) => panic!("a direct network send blocked lifecycle handoff"),
};
drop(pause_guard);
save_release.notify_one();
dispatch.await.expect("direct dispatch should finish after release");
}
#[tokio::test]
async fn replacement_cancels_permit_waiting_direct_dispatch_before_closing_target() {
let metrics = Arc::new(NotificationMetrics::new());
let rule_engine = NotifyRuleEngine::new();
let notifier = Arc::new(EventNotifier {
send_limiter: Arc::new(Semaphore::new(1)),
..EventNotifier::new(metrics.clone(), rule_engine.clone())
});
let first_entered = Arc::new(Notify::new());
let first_release = Arc::new(Notify::new());
let close_entered = Arc::new(Notify::new());
let target = TestTarget::new("direct-target", "webhook", true)
.with_blocked_first_save(first_entered.clone(), first_release.clone())
.with_close_observer(close_entered);
let mut rules_map = RulesMap::new();
rules_map.add_rule_config(&[EventName::ObjectCreatedPut], "*".to_string(), target.id.clone());
rule_engine.set_bucket_rules("bucket", rules_map).await;
notifier
.target_list()
.write()
.await
.add(Arc::new(target.clone()))
.expect("target should install");
let facade = crate::runtime_facade::NotifyRuntimeFacade::new_with_dispatch_gate(
notifier.target_list(),
Arc::new(RwLock::new(ReplayWorkerManager::new())),
notifier.dispatch_gate(),
Arc::new(Semaphore::new(1)),
metrics.clone(),
);
let first = tokio::spawn({
let notifier = notifier.clone();
async move {
notifier
.send(Arc::new(Event::new_test_event("bucket", "first", EventName::ObjectCreatedPut)))
.await;
}
});
first_entered.notified().await;
// This task selects the old generation and acquires its lease before
// waiting for the saturated direct-send permit.
let second = tokio::spawn({
let notifier = notifier.clone();
async move {
notifier
.send(Arc::new(Event::new_test_event("bucket", "second", EventName::ObjectCreatedPut)))
.await;
}
});
tokio::time::timeout(std::time::Duration::from_secs(1), async {
while target.selected_calls.load(Ordering::SeqCst) != 2 {
tokio::task::yield_now().await;
}
})
.await
.expect("both direct sends should select the old generation");
let activation = facade.activate_targets_with_replay(Vec::new()).await;
let mut replace = Box::pin(facade.replace_targets(activation));
tokio::select! {
biased;
result = &mut replace => panic!("replacement closed a generation with selected direct sends: {result:?}"),
_ = std::future::ready(()) => {}
}
assert_eq!(target.close_calls.load(Ordering::SeqCst), 0);
first_release.notify_one();
first.await.expect("first direct dispatch should finish");
second.await.expect("permit-waiting direct dispatch should be cancelled");
replace.await.expect("replacement should close after direct leases drain");
assert_eq!(target.save_calls.load(Ordering::SeqCst), 1);
assert_eq!(target.close_calls.load(Ordering::SeqCst), 1);
assert_eq!(metrics.processing_count(), 0);
assert_eq!(metrics.processed_count(), 1);
assert_eq!(metrics.skipped_count(), 1);
}
#[tokio::test]
async fn caller_abort_does_not_release_deferred_generation_lease() {
let metrics = Arc::new(NotificationMetrics::new());
let rule_engine = NotifyRuleEngine::new();
let notifier = Arc::new(EventNotifier::new(metrics.clone(), rule_engine.clone()));
let save_entered = Arc::new(Notify::new());
let save_release = Arc::new(Notify::new());
let queue_dir = tempfile::tempdir().expect("queue tempdir should be created");
let target = TestTarget::new("deferred", "webhook", true)
.with_blocked_first_save(save_entered.clone(), save_release.clone())
.with_store(QueueStore::new(queue_dir.path(), 16, ".event"));
let mut rules_map = RulesMap::new();
rules_map.add_rule_config(&[EventName::ObjectCreatedPut], "*".to_string(), target.id.clone());
rule_engine.set_bucket_rules("bucket", rules_map).await;
notifier
.target_list()
.write()
.await
.add(Arc::new(target))
.expect("target should install");
let facade = crate::runtime_facade::NotifyRuntimeFacade::new_with_dispatch_gate(
notifier.target_list(),
Arc::new(RwLock::new(ReplayWorkerManager::new())),
notifier.dispatch_gate(),
Arc::new(Semaphore::new(1)),
metrics,
);
let dispatch = tokio::spawn({
let notifier = notifier.clone();
async move {
notifier
.send(Arc::new(Event::new_test_event("bucket", "object", EventName::ObjectCreatedPut)))
.await;
}
});
save_entered.notified().await;
dispatch.abort();
let _ = dispatch.await;
let mut pause = Box::pin(facade.pause_dispatch());
tokio::select! {
biased;
_ = &mut pause => panic!("caller abort released the deferred generation lease"),
_ = std::future::ready(()) => {}
}
save_release.notify_one();
let pause_guard = pause.await;
drop(pause_guard);
}
#[tokio::test]
async fn deferred_enqueue_concurrency_is_bounded() {
const LIMIT: usize = 2;
const TARGETS: usize = 3;
let metrics = Arc::new(NotificationMetrics::new());
let rule_engine = NotifyRuleEngine::new();
let notifier = Arc::new(EventNotifier {
enqueue_limiter: Arc::new(Semaphore::new(LIMIT)),
..EventNotifier::new(metrics, rule_engine.clone())
});
let entered = Arc::new(Notify::new());
let release = Arc::new(Notify::new());
let queue_dir = tempfile::tempdir().expect("queue tempdir should be created");
let mut targets = Vec::new();
let mut rules_map = RulesMap::new();
for index in 0..TARGETS {
let target = TestTarget::new(&format!("deferred-{index}"), "webhook", true)
.with_blocked_first_save(entered.clone(), release.clone())
.with_store(QueueStore::new(queue_dir.path().join(index.to_string()), 16, ".event"));
rules_map.add_rule_config(&[EventName::ObjectCreatedPut], "*".to_string(), target.id.clone());
notifier
.target_list()
.write()
.await
.add(Arc::new(target.clone()))
.expect("target should install");
targets.push(target);
}
rule_engine.set_bucket_rules("bucket", rules_map).await;
let dispatch = tokio::spawn({
let notifier = notifier.clone();
async move {
notifier
.send(Arc::new(Event::new_test_event("bucket", "object", EventName::ObjectCreatedPut)))
.await;
}
});
let total_calls = || {
targets
.iter()
.map(|target| target.save_calls.load(Ordering::SeqCst))
.sum::<usize>()
};
tokio::time::timeout(std::time::Duration::from_secs(1), async {
while total_calls() != LIMIT {
tokio::task::yield_now().await;
}
})
.await
.expect("the configured number of enqueues should enter");
for _ in 0..10 {
tokio::task::yield_now().await;
}
assert_eq!(total_calls(), LIMIT, "enqueue concurrency exceeded its semaphore capacity");
release.notify_waiters();
tokio::time::timeout(std::time::Duration::from_secs(1), async {
while total_calls() != TARGETS {
tokio::task::yield_now().await;
}
})
.await
.expect("the waiting enqueue should enter after a permit is released");
release.notify_waiters();
dispatch.await.expect("all bounded enqueues should finish");
}
#[tokio::test]
async fn deferred_enqueue_does_not_wait_for_a_blocked_direct_send_permit() {
let metrics = Arc::new(NotificationMetrics::new());
let rule_engine = NotifyRuleEngine::new();
let notifier = Arc::new(EventNotifier {
send_limiter: Arc::new(Semaphore::new(1)),
..EventNotifier::new(metrics.clone(), rule_engine.clone())
});
let direct_entered = Arc::new(Notify::new());
let direct_release = Arc::new(Notify::new());
let direct =
TestTarget::new("direct", "webhook", true).with_blocked_first_save(direct_entered.clone(), direct_release.clone());
let deferred_entered = Arc::new(Notify::new());
let deferred_release = Arc::new(Notify::new());
let queue_dir = tempfile::tempdir().expect("queue tempdir should be created");
let deferred = TestTarget::new("deferred", "webhook", true)
.with_blocked_first_save(deferred_entered.clone(), deferred_release.clone())
.with_store(QueueStore::new(queue_dir.path(), 16, ".event"));
let mut direct_rules = RulesMap::new();
direct_rules.add_rule_config(&[EventName::ObjectCreatedPut], "*".to_string(), direct.id.clone());
rule_engine.set_bucket_rules("direct-bucket", direct_rules).await;
let mut deferred_rules = RulesMap::new();
deferred_rules.add_rule_config(&[EventName::ObjectCreatedPut], "*".to_string(), deferred.id.clone());
rule_engine.set_bucket_rules("deferred-bucket", deferred_rules).await;
{
let target_list = notifier.target_list();
let mut target_list = target_list.write().await;
target_list.add(Arc::new(direct)).expect("direct target should install");
target_list.add(Arc::new(deferred)).expect("deferred target should install");
}
let facade = crate::runtime_facade::NotifyRuntimeFacade::new_with_dispatch_gate(
notifier.target_list(),
Arc::new(RwLock::new(ReplayWorkerManager::new())),
notifier.dispatch_gate(),
Arc::new(Semaphore::new(1)),
metrics,
);
let direct_dispatch = tokio::spawn({
let notifier = notifier.clone();
async move {
notifier
.send(Arc::new(Event::new_test_event("direct-bucket", "object", EventName::ObjectCreatedPut)))
.await;
}
});
direct_entered.notified().await;
let deferred_dispatch = tokio::spawn({
let notifier = notifier.clone();
async move {
notifier
.send(Arc::new(Event::new_test_event("deferred-bucket", "object", EventName::ObjectCreatedPut)))
.await;
}
});
tokio::time::timeout(std::time::Duration::from_secs(1), deferred_entered.notified())
.await
.expect("queue persistence must not wait behind a direct network send permit");
let mut pause = Box::pin(facade.pause_dispatch());
tokio::select! {
biased;
_ = &mut pause => panic!("lifecycle pause crossed the blocked deferred enqueue"),
_ = std::future::ready(()) => {}
}
deferred_release.notify_one();
deferred_dispatch
.await
.expect("deferred dispatch should finish after release");
let pause_guard = tokio::select! {
biased;
guard = &mut pause => guard,
_ = std::future::ready(()) => panic!("direct network delivery kept the lifecycle gate locked"),
};
drop(pause_guard);
direct_release.notify_one();
direct_dispatch.await.expect("direct dispatch should finish after release");
}
#[tokio::test]
async fn test_send_event_skips_disabled_target() {
let rule_engine = NotifyRuleEngine::new();
let notifier = EventNotifier::new(Arc::new(NotificationMetrics::new()), rule_engine.clone());
let enabled_target = TestTarget::new("enabled-target", "webhook", true);
let disabled_target = TestTarget::new("disabled-target", "webhook", false);
let mut rules_map = RulesMap::new();
rules_map.add_rule_config(&[EventName::ObjectCreatedPut], "*".to_string(), enabled_target.id.clone());
rules_map.add_rule_config(&[EventName::ObjectCreatedPut], "*".to_string(), disabled_target.id.clone());
rule_engine.set_bucket_rules("bucket", rules_map).await;
notifier
.target_list()
.write()
.await
.add(Arc::new(enabled_target.clone()))
.unwrap();
notifier
.target_list()
.write()
.await
.add(Arc::new(disabled_target.clone()))
.unwrap();
let event = Arc::new(Event::new_test_event("bucket", "object", EventName::ObjectCreatedPut));
notifier.send(event).await;
assert_eq!(enabled_target.save_calls.load(Ordering::SeqCst), 1);
assert_eq!(disabled_target.save_calls.load(Ordering::SeqCst), 0);
}
#[tokio::test]
async fn send_event_respects_prefix_suffix_filters() {
let rule_engine = NotifyRuleEngine::new();
let notifier = EventNotifier::new(Arc::new(NotificationMetrics::new()), rule_engine.clone());
let target = TestTarget::new("filtered-target", "webhook", true);
let mut rules_map = RulesMap::new();
rules_map.add_rule_config(&[EventName::ObjectCreatedPut], "uploads/*.csv".to_string(), target.id.clone());
rule_engine.set_bucket_rules("bucket", rules_map).await;
notifier.target_list().write().await.add(Arc::new(target.clone())).unwrap();
notifier
.send(Arc::new(Event::new_test_event("bucket", "report.csv", EventName::ObjectCreatedPut)))
.await;
notifier
.send(Arc::new(Event::new_test_event(
"bucket",
"uploads/report.txt",
EventName::ObjectCreatedPut,
)))
.await;
assert_eq!(target.save_calls.load(Ordering::SeqCst), 0);
notifier
.send(Arc::new(Event::new_test_event(
"bucket",
"uploads/report.csv",
EventName::ObjectCreatedPut,
)))
.await;
assert_eq!(target.save_calls.load(Ordering::SeqCst), 1);
}
/// A store-backed (deferred) target. `save` only enqueues to the store, so
/// the actual delivery happens later in the replay worker.
#[derive(Clone)]
struct DeferredTestTarget {
id: TargetID,
save_calls: Arc<AtomicUsize>,
store: QueueStore<QueuedPayload>,
}
impl DeferredTestTarget {
fn new(id: &str, name: &str) -> Self {
Self {
id: TargetID::new(id.to_string(), name.to_string()),
save_calls: Arc::new(AtomicUsize::new(0)),
// The store is never actually written to here: `save` below only bumps a
// counter. It just has to exist so the notifier treats this target as
// store-backed (deferred delivery), exercising the deferred counting path.
store: QueueStore::new(std::env::temp_dir().join("rustfs-notify-979-noop-store"), 0, ""),
}
}
}
#[async_trait]
impl<E> Target<E> for DeferredTestTarget
where
E: rustfs_targets::PluginEvent,
{
fn id(&self) -> TargetID {
self.id.clone()
}
async fn is_active(&self) -> Result<bool, TargetError> {
Ok(true)
}
async fn save(&self, _event: Arc<EntityTarget<E>>) -> Result<(), TargetError> {
self.save_calls.fetch_add(1, Ordering::SeqCst);
Ok(())
}
async fn send_raw_from_store(&self, _key: Key, _body: Vec<u8>, _meta: QueuedPayloadMeta) -> Result<(), TargetError> {
Ok(())
}
async fn close(&self) -> Result<(), TargetError> {
Ok(())
}
fn store(&self) -> Option<&(dyn Store<QueuedPayload, Error = StoreError, Key = Key> + Send + Sync)> {
Some(&self.store)
}
fn clone_dyn(&self) -> Box<dyn Target<E> + Send + Sync> {
Box::new(self.clone())
}
async fn init(&self) -> Result<(), TargetError> {
Ok(())
}
fn is_enabled(&self) -> bool {
true
}
}
/// Regression test for backlog#979 (a): dispatching to a store-backed
/// (deferred) target must count the event as in-flight exactly once and must
/// not decrement `processing_events` at enqueue time. The replay worker is the
/// single owner of the completion decrement (`increment_processed`); an extra
/// decrement here previously double-counted and underflowed the counter back
/// to `usize::MAX`.
#[tokio::test]
async fn deferred_target_dispatch_does_not_underflow_processing_counter() {
let metrics = Arc::new(NotificationMetrics::new());
let rule_engine = NotifyRuleEngine::new();
let notifier = EventNotifier::new(metrics.clone(), rule_engine.clone());
let target = DeferredTestTarget::new("deferred-target", "webhook");
let mut rules_map = RulesMap::new();
rules_map.add_rule_config(&[EventName::ObjectCreatedPut], "*".to_string(), target.id.clone());
rule_engine.set_bucket_rules("bucket", rules_map).await;
notifier.target_list().write().await.add(Arc::new(target.clone())).unwrap();
// Dispatch enqueues to the store; the event stays in-flight (processing == 1).
notifier
.send(Arc::new(Event::new_test_event("bucket", "object", EventName::ObjectCreatedPut)))
.await;
assert_eq!(target.save_calls.load(Ordering::SeqCst), 1);
assert_eq!(
metrics.processing_count(),
1,
"a queued deferred event must remain counted as in-flight after enqueue"
);
assert_eq!(metrics.processed_count(), 0);
// Simulate the replay worker delivering the queued event (runtime_facade
// maps `ReplayEvent::Delivered` to `increment_processed`).
metrics.increment_processed();
assert_eq!(
metrics.processing_count(),
0,
"processing counter must return to zero, not underflow to usize::MAX"
);
assert_ne!(metrics.processing_count(), usize::MAX);
assert_eq!(metrics.processed_count(), 1);
}
/// Regression test for backlog#984: a `RUSTFS_NOTIFY_SEND_CONCURRENCY=0`
/// misconfiguration must not build a zero-permit semaphore (which would
/// deadlock every dispatch); it must fall back to the default. Positive values
/// pass through unchanged.
#[test]
fn zero_send_concurrency_falls_back_to_default() {
assert_eq!(
coerce_send_concurrency(0),
DEFAULT_NOTIFY_SEND_CONCURRENCY,
"zero concurrency must fall back to the default, never a zero-permit semaphore"
);
assert!(coerce_send_concurrency(0) > 0, "resolved concurrency must be strictly positive");
assert_eq!(coerce_send_concurrency(1), 1);
assert_eq!(coerce_send_concurrency(128), 128);
}
/// Regression test for backlog#984: replacing the runtime target set via
/// `init_bucket_targets_shared` must `close()` the previously registered
/// targets instead of dropping them silently (connection/stream leak).
#[tokio::test]
async fn init_bucket_targets_shared_closes_replaced_targets() {
let rule_engine = NotifyRuleEngine::new();
let notifier = EventNotifier::new(Arc::new(NotificationMetrics::new()), rule_engine);
let old_target = ClosableTestTarget::new("old", "webhook");
notifier
.init_bucket_targets_shared(vec![Arc::new(old_target.clone()) as SharedTarget<Event>])
.await
.expect("initial install should succeed");
assert_eq!(old_target.close_calls.load(Ordering::SeqCst), 0, "target must not close on first install");
let new_target = ClosableTestTarget::new("new", "webhook");
notifier
.init_bucket_targets_shared(vec![Arc::new(new_target.clone()) as SharedTarget<Event>])
.await
.expect("replacement install should succeed");
assert_eq!(
old_target.close_calls.load(Ordering::SeqCst),
1,
"the replaced target must be closed exactly once"
);
assert_eq!(
new_target.close_calls.load(Ordering::SeqCst),
0,
"the freshly installed target must stay open"
);
}
/// A target that records `close()` invocations, for lifecycle assertions.
#[derive(Clone)]
struct ClosableTestTarget {
id: TargetID,
close_calls: Arc<AtomicUsize>,
}
impl ClosableTestTarget {
fn new(id: &str, name: &str) -> Self {
Self {
id: TargetID::new(id.to_string(), name.to_string()),
close_calls: Arc::new(AtomicUsize::new(0)),
}
}
}
#[async_trait]
impl<E> Target<E> for ClosableTestTarget
where
E: rustfs_targets::PluginEvent,
{
fn id(&self) -> TargetID {
self.id.clone()
}
async fn is_active(&self) -> Result<bool, TargetError> {
Ok(true)
}
async fn save(&self, _event: Arc<EntityTarget<E>>) -> Result<(), TargetError> {
Ok(())
}
async fn send_raw_from_store(&self, _key: Key, _body: Vec<u8>, _meta: QueuedPayloadMeta) -> Result<(), TargetError> {
Ok(())
}
async fn close(&self) -> Result<(), TargetError> {
self.close_calls.fetch_add(1, Ordering::SeqCst);
Ok(())
}
fn store(&self) -> Option<&(dyn Store<QueuedPayload, Error = StoreError, Key = Key> + Send + Sync)> {
None
}
fn clone_dyn(&self) -> Box<dyn Target<E> + Send + Sync> {
Box::new(self.clone())
}
async fn init(&self) -> Result<(), TargetError> {
Ok(())
}
fn is_enabled(&self) -> bool {
true
}
}
}