splitio · chillaq · Jan 27, 2026 · Jan 7, 2026 · Jan 8, 2026 · Jan 9, 2026
@@ -1,4 +1,3 @@
-import pytest
 """A module for Split.io Factories."""
 import logging
 import threading
@@ -643,7 +642,8 @@ def _build_in_memory_factory(api_key, cfg, sdk_url=None, events_url=None,  # pyl
     )
 
     telemetry_init_producer.record_config(cfg, extra_cfg, total_flag_sets, invalid_flag_sets)
-
+    internal_events_task.start()
+
     if preforked_initialization:
         synchronizer.sync_all(max_retry_attempts=_MAX_RETRY_SYNC_ALL)
         synchronizer._split_synchronizers._segment_sync.shutdown()

@@ -2,9 +2,9 @@
 import threading
 import logging
 from collections import namedtuple
-import pytest
 
 from splitio.events import EventsManagerInterface
+from splitio.models.events import SdkEvent
 
 _LOGGER = logging.getLogger(__name__)
 
@@ -25,10 +25,17 @@ def __init__(self, events_configurations, events_delivery):
         self._lock = threading.RLock()
 
     def register(self, sdk_event, event_handler):
-        if self._active_subscriptions.get(sdk_event) != None:
+        if self._active_subscriptions.get(sdk_event) != None and self._get_event_handler(sdk_event) != None:
             return
-        
+
         with self._lock:
+            # SDK ready already fired
+            if sdk_event == SdkEvent.SDK_READY and self._event_already_triggered(sdk_event):
+                self._active_subscriptions[sdk_event] = ActiveSubscriptions(True, event_handler)
+                _LOGGER.debug("EventsManager: Firing SDK_READY event for new subscription")                
+                self._fire_sdk_event(sdk_event, None)
+                return
+
             self._active_subscriptions[sdk_event] = ActiveSubscriptions(False, event_handler)
 
     def unregister(self, sdk_event):
@@ -42,18 +49,27 @@ def notify_internal_event(self, sdk_internal_event, event_metadata):
         with self._lock:
             for sorted_event in self._manager_config.evaluation_order:
                 if sorted_event in self._get_sdk_event_if_applicable(sdk_internal_event):
-                    _LOGGER.debug("EventsManager: Firing Sdk event %s", sorted_event)
                     if self._get_event_handler(sorted_event) != None:
-                        notify_event = threading.Thread(target=self._events_delivery.deliver, args=[sorted_event, event_metadata, self._get_event_handler(sorted_event)],
-                                                name='SplitSDKEventNotify', daemon=True)
-                        notify_event.start()
-                        self._set_sdk_event_triggered(sorted_event)
+                        self._fire_sdk_event(sorted_event, event_metadata)
+
+                    # if client is not subscribed to SDK_READY    
+                    if sorted_event == SdkEvent.SDK_READY and self._get_event_handler(sorted_event) == None:
+                        _LOGGER.debug("EventsManager: Registering SDK_READY event as fired")
+                        self._active_subscriptions[SdkEvent.SDK_READY] = ActiveSubscriptions(True, None)
+
 
     def destroy(self):
         with self._lock:
             self._active_subscriptions = {}
             self._internal_events_status = {}
 
+    def _fire_sdk_event(self, sdk_event, event_metadata):
+        _LOGGER.debug("EventsManager: Firing Sdk event %s", sdk_event)
+        notify_event = threading.Thread(target=self._events_delivery.deliver, args=[sdk_event, event_metadata, self._get_event_handler(sdk_event)],
+                                name='SplitSDKEventNotify', daemon=True)
+        notify_event.start()
+        self._set_sdk_event_triggered(sdk_event)
+
     def _event_already_triggered(self, sdk_event):
         if self._active_subscriptions.get(sdk_event) != None:
             return self._active_subscriptions.get(sdk_event).triggered

@@ -154,10 +154,11 @@ def update(self, to_add, to_delete, new_change_number):
         [self._put(add_segment) for add_segment in to_add]
         [self._remove(delete_segment) for delete_segment in to_delete]
         self._set_change_number(new_change_number)
-        self._internal_event_queue.put(
-            SdkInternalEventNotification(
-                SdkInternalEvent.RB_SEGMENTS_UPDATED,
-                EventsMetadata(SdkEventType.SEGMENT_UPDATE, {})))        
+        if len(to_add) > 0 or len(to_delete) > 0:
+            self._internal_event_queue.put(
+                SdkInternalEventNotification(
+                    SdkInternalEvent.RB_SEGMENTS_UPDATED,
+                    EventsMetadata(SdkEventType.SEGMENT_UPDATE, {})))        
 
     def _put(self, rule_based_segment):
         """
@@ -547,10 +548,11 @@ def update(self, to_add, to_delete, new_change_number):
         to_notify = []
         [to_notify.append(feature.name) for feature in to_add]
         to_notify.extend(to_delete)
-        self._internal_event_queue.put(
-            SdkInternalEventNotification(
-                SdkInternalEvent.FLAGS_UPDATED,
-                EventsMetadata(SdkEventType.FLAG_UPDATE, set(to_notify))))
+        if len(to_notify) > 0:
+            self._internal_event_queue.put(
+                SdkInternalEventNotification(
+                    SdkInternalEvent.FLAGS_UPDATED,
+                    EventsMetadata(SdkEventType.FLAG_UPDATE, set(to_notify))))
 
     def _put(self, feature_flag):
         """
@@ -999,10 +1001,11 @@ def update(self, segment_name, to_add, to_remove, change_number=None):
             if change_number is not None:
                 self._segments[segment_name].change_number = change_number
 
-            self._internal_event_queue.put(
-            SdkInternalEventNotification(
-                SdkInternalEvent.SEGMENTS_UPDATED,
-                EventsMetadata(SdkEventType.SEGMENT_UPDATE, {})))        
+            if len(to_add) > 0 or len(to_remove) >0:
+                self._internal_event_queue.put(
+                SdkInternalEventNotification(
+                    SdkInternalEvent.SEGMENTS_UPDATED,
+                    EventsMetadata(SdkEventType.SEGMENT_UPDATE, {})))        
 
     def get_change_number(self, segment_name):
         """

@@ -329,9 +329,6 @@ def start_periodic_data_recording(self):
         for task in self._periodic_data_recording_tasks:
             task.start()
 
-        if self._split_tasks.internal_events_task:
-            self._split_tasks.internal_events_task.start()
-
     def stop_periodic_data_recording(self, blocking):
         """
         Stop recorders.
@@ -883,8 +880,6 @@ def start_periodic_fetching(self):
             self._split_tasks.split_task.start()
         if self._split_tasks.segment_task is not None:
             self._split_tasks.segment_task.start()
-        if self._split_tasks.internal_events_task:
-            self._split_tasks.internal_events_task.start()
 
     def stop_periodic_fetching(self):
         """Stop fetchers for feature flags and segments."""

@@ -1 +1 @@
-__version__ = '10.5.1'
+__version__ = '10.6.0'
@@ -28,6 +28,7 @@
 from splitio.events.events_manager_config import EventsManagerConfig
 from splitio.events.events_task import EventsTask
 from splitio.models import splits, segments, rule_based_segments
+from splitio.models.events import SdkEvent
 from splitio.models.fallback_config import FallbackTreatmentsConfiguration, FallbackTreatmentCalculator
 from splitio.models.fallback_treatment import FallbackTreatment
 from splitio.recorder.recorder import StandardRecorder, PipelinedRecorder, StandardRecorderAsync, PipelinedRecorderAsync
@@ -2424,6 +2425,181 @@ def clear_cache(self):
         for key in keys_to_delete:
             redis_client.delete(key)
 
+class InMemoryEventsNotificationTests(object):
+    """Inmemory storage-based events notification tests."""
+
+    ready_flag = False
+    timeout_flag = False
+
+    def test_sdk_timeout_fire(self):
+        """Prepare storages with test data."""
+        factory2 = get_factory('some_api_key')        
+        client = factory2.client()
+        client.on(SdkEvent.SDK_READY_TIMED_OUT, self._timeout_callback)
+        try:
+            factory2.block_until_ready(1)
+        except Exception as e:
+            print(e)
+            pass
+
+        time.sleep(1)
+        assert self.timeout_flag
+
+        """Shut down the factory."""
+        event = threading.Event()
+        factory2.destroy(event)
+        event.wait()
+
+    def test_sdk_ready(self):
+        """Prepare storages with test data."""
+        events_queue = queue.Queue()
+        split_storage = InMemorySplitStorage(events_queue)
+        segment_storage = InMemorySegmentStorage(events_queue)
+        rb_segment_storage = InMemoryRuleBasedSegmentStorage(events_queue)
+
+        split_fn = os.path.join(os.path.dirname(__file__), 'files', 'splitChanges.json')
+        with open(split_fn, 'r') as flo:
+            data = json.loads(flo.read())
+        for split in data['ff']['d']:
+            split_storage.update([splits.from_raw(split)], [], 0)
+
+        for rbs in data['rbs']['d']:
+            rb_segment_storage.update([rule_based_segments.from_raw(rbs)], [], 0)
+
+        segment_fn = os.path.join(os.path.dirname(__file__), 'files', 'segmentEmployeesChanges.json')
+        with open(segment_fn, 'r') as flo:
+            data = json.loads(flo.read())
+        segment_storage.put(segments.from_raw(data))
+
+        segment_fn = os.path.join(os.path.dirname(__file__), 'files', 'segmentHumanBeignsChanges.json')
+        with open(segment_fn, 'r') as flo:
+            data = json.loads(flo.read())
+        segment_storage.put(segments.from_raw(data))
+
+        telemetry_storage = InMemoryTelemetryStorage()
+        telemetry_producer = TelemetryStorageProducer(telemetry_storage)
+        telemetry_runtime_producer = telemetry_producer.get_telemetry_runtime_producer()
+        telemetry_evaluation_producer = telemetry_producer.get_telemetry_evaluation_producer()
+
+        storages = {
+            'splits': split_storage,
+            'segments': segment_storage,
+            'rule_based_segments': rb_segment_storage,
+            'impressions': InMemoryImpressionStorage(5000, telemetry_runtime_producer),
+            'events': InMemoryEventStorage(5000, telemetry_runtime_producer),
+        }
+        impmanager = ImpressionsManager(StrategyDebugMode(), StrategyNoneMode(), telemetry_runtime_producer) # no listener
+        recorder = StandardRecorder(impmanager, storages['events'], storages['impressions'], telemetry_evaluation_producer, telemetry_runtime_producer, imp_counter=ImpressionsCounter())
+        events_manager = EventsManager(EventsManagerConfig(), EventsDelivery())
+        internal_events_task = EventsTask(events_manager.notify_internal_event, events_queue)
+
+        # Since we are passing None as SDK_Ready event, the factory will use the Redis telemetry call, using try catch to ignore the exception.
+        try:
+            factory = SplitFactory('some_api_key',
+                                    storages,
+                                    True,
+                                    recorder,
+                                    events_queue,
+                                    events_manager,
+                                    None,
+                                    telemetry_producer=telemetry_producer,
+                                    telemetry_init_producer=telemetry_producer.get_telemetry_init_producer(),
+                                    fallback_treatment_calculator=FallbackTreatmentCalculator(FallbackTreatmentsConfiguration(None, {'fallback_feature': FallbackTreatment("on-local", '{"prop": "val"}')}))
+                                    )  # pylint:disable=attribute-defined-outside-init
+            internal_events_task.start()
+        except:
+            pass
+
+        client = factory.client()
+        client.on(SdkEvent.SDK_READY, self._ready_callback)
+        factory.block_until_ready(5)
+        assert self.ready_flag
+
+        """Shut down the factory."""
+        event = threading.Event()
+        factory.destroy(event)
+        event.wait()
+
+    def test_sdk_ready_fire_later(self):
+        """Prepare storages with test data."""
+        events_queue = queue.Queue()
+        split_storage = InMemorySplitStorage(events_queue)
+        segment_storage = InMemorySegmentStorage(events_queue)
+        rb_segment_storage = InMemoryRuleBasedSegmentStorage(events_queue)
+
+        split_fn = os.path.join(os.path.dirname(__file__), 'files', 'splitChanges.json')
+        with open(split_fn, 'r') as flo:
+            data = json.loads(flo.read())
+        for split in data['ff']['d']:
+            split_storage.update([splits.from_raw(split)], [], 0)
+
+        for rbs in data['rbs']['d']:
+            rb_segment_storage.update([rule_based_segments.from_raw(rbs)], [], 0)
+
+        segment_fn = os.path.join(os.path.dirname(__file__), 'files', 'segmentEmployeesChanges.json')
+        with open(segment_fn, 'r') as flo:
+            data = json.loads(flo.read())
+        segment_storage.put(segments.from_raw(data))
+
+        segment_fn = os.path.join(os.path.dirname(__file__), 'files', 'segmentHumanBeignsChanges.json')
+        with open(segment_fn, 'r') as flo:
+            data = json.loads(flo.read())
+        segment_storage.put(segments.from_raw(data))
+
+        telemetry_storage = InMemoryTelemetryStorage()
+        telemetry_producer = TelemetryStorageProducer(telemetry_storage)
+        telemetry_runtime_producer = telemetry_producer.get_telemetry_runtime_producer()
+        telemetry_evaluation_producer = telemetry_producer.get_telemetry_evaluation_producer()
+
+        storages = {
+            'splits': split_storage,
+            'segments': segment_storage,
+            'rule_based_segments': rb_segment_storage,
+            'impressions': InMemoryImpressionStorage(5000, telemetry_runtime_producer),
+            'events': InMemoryEventStorage(5000, telemetry_runtime_producer),
+        }
+        impmanager = ImpressionsManager(StrategyDebugMode(), StrategyNoneMode(), telemetry_runtime_producer) # no listener
+        recorder = StandardRecorder(impmanager, storages['events'], storages['impressions'], telemetry_evaluation_producer, telemetry_runtime_producer, imp_counter=ImpressionsCounter())
+        events_manager = EventsManager(EventsManagerConfig(), EventsDelivery())
+        internal_events_task = EventsTask(events_manager.notify_internal_event, events_queue)
+
+        # Since we are passing None as SDK_Ready event, the factory will use the Redis telemetry call, using try catch to ignore the exception.
+        try:
+            factory = SplitFactory('some_api_key',
+                                    storages,
+                                    True,
+                                    recorder,
+                                    events_queue,
+                                    events_manager,
+                                    None,
+                                    telemetry_producer=telemetry_producer,
+                                    telemetry_init_producer=telemetry_producer.get_telemetry_init_producer(),
+                                    fallback_treatment_calculator=FallbackTreatmentCalculator(FallbackTreatmentsConfiguration(None, {'fallback_feature': FallbackTreatment("on-local", '{"prop": "val"}')}))
+                                    )  # pylint:disable=attribute-defined-outside-init
+            internal_events_task.start()
+        except:
+            pass
+
+        client = factory.client()
+        factory.block_until_ready(5)
+
+        assert client.get_treatment('user1', 'sample_feature', evaluation_options=EvaluationOptions({"prop": "value"})) == 'on'
+
+        self.ready_flag = False
+        client.on(SdkEvent.SDK_READY, self._ready_callback)
+        assert self.ready_flag
+
+        """Shut down the factory."""
+        event = threading.Event()
+        factory.destroy(event)
+        event.wait()
+
+    def _ready_callback(self, metadata):
+        self.ready_flag = True
+
+    def _timeout_callback(self, metadata):
+        self.timeout_flag = True
+
 class InMemoryIntegrationAsyncTests(object):
     """Inmemory storage-based integration tests."""
 
@@ -4984,4 +5160,4 @@ async def _manager_methods_async(factory, skip_rbs=False):
         return
 
     assert len(await manager.split_names()) == 9
-    assert len(await manager.splits()) == 9
+    assert len(await manager.splits()) == 9