update chef force check-in command with shutdown all subs

Author: yunhanw-google

examples/common/pigweed/rpc_services/Device.h

@@ -485,6 +485,7 @@ class Device : public pw_rpc::nanopb::Device::Service<Device>
     virtual pw::Status TriggerIcdCheckin(const pw_protobuf_Empty & request, pw_protobuf_Empty & response)
     {
 #if CHIP_CONFIG_ENABLE_ICD_CIP
+        chip::app::InteractionModelEngine::GetInstance()->ShutdownAllSubscriptions();
         chip::DeviceLayer::PlatformMgr().ScheduleWork(
             [](intptr_t) {
                 ChipLogDetail(AppServer, "Being triggerred to send ICD check-in message to subscriber");

src/app/InteractionModelEngine.cpp

@@ -387,6 +387,18 @@ void InteractionModelEngine::ShutdownAllSubscriptions()
     ShutdownMatchingSubscriptions();
 }
 
+void InteractionModelEngine::ShutdownAllSubscriptionHandlers()
+{
+    mReadHandlers.ForEachActiveObject([&](auto * handler) {
+        if (!handler->IsType(ReadHandler::InteractionType::Subscribe))
+        {
+            return Loop::Continue;
+        }
+        handler->Close();
+        return Loop::Continue;
+    });
+}
+
 void InteractionModelEngine::ShutdownMatchingSubscriptions(const Optional<FabricIndex> & aFabricIndex,
                                                            const Optional<NodeId> & aPeerNodeId)
 {