Add nodejs test for dataset name

include/engine/data_watchdog.hpp

@@ -47,7 +47,7 @@ class DataWatchdogImpl<AlgorithmT, datafacade::ContiguousInternalMemoryDataFacad
             if (region_id == storage::SharedRegionRegister::INVALID_REGION_ID)
             {
                 throw util::exception(
-                    "Could not find shared memory region. Did you run osrm-datastore?");
+                    "Could not find shared memory region for \"" + dataset_name +"/data\". Did you run osrm-datastore?");
             }
             shared_region = &shared_register.GetRegion(region_id);
             region = *shared_region;
@@ -94,7 +94,7 @@ class DataWatchdogImpl<AlgorithmT, datafacade::ContiguousInternalMemoryDataFacad
                 facade_factory =
                     DataFacadeFactory<datafacade::ContiguousInternalMemoryDataFacade, AlgorithmT>(
                         std::make_shared<datafacade::SharedMemoryAllocator>(region.shm_key));
-                util::Log() << "updated facade to region " << region.shm_key << " with timestamp "
+                util::Log() << "updated facade to region " << (int) region.shm_key << " with timestamp "
                             << region.timestamp;
             }
         }

include/engine/engine.hpp

@@ -59,7 +59,7 @@ template <typename Algorithm> class Engine final : public EngineInterface
     {
         if (config.use_shared_memory)
         {
-            util::Log(logDEBUG) << "Using shared memory with algorithm "
+            util::Log(logDEBUG) << "Using shared memory with name \"" << config.dataset_name << "\" with algorithm "
                                 << routing_algorithms::name<Algorithm>();
             facade_provider = std::make_unique<WatchingProvider<Algorithm>>(config.dataset_name);
         }

include/nodejs/node_osrm_support.hpp

@@ -135,6 +135,22 @@ inline engine_config_ptr argumentsToEngineConfig(const Nan::FunctionCallbackInfo
             *v8::String::Utf8Value(Nan::To<v8::String>(memory_file).ToLocalChecked());
     }
 
+    auto dataset_name = params->Get(Nan::New("dataset_name").ToLocalChecked());
+    if (dataset_name.IsEmpty())
+        return engine_config_ptr();
+    if (!dataset_name->IsUndefined())
+    {
+        if (dataset_name->IsString())
+        {
+            engine_config->dataset_name = *v8::String::Utf8Value(Nan::To<v8::String>(dataset_name).ToLocalChecked());
+        }
+        else
+        {
+            Nan::ThrowError("dataset_name needs to be a string");
+            return engine_config_ptr();
+        }
+    }
+
     if (!path->IsUndefined())
     {
         engine_config->storage_config =

include/storage/shared_memory.hpp

@@ -63,7 +63,7 @@ class SharedMemory
         {
             shm = boost::interprocess::xsi_shared_memory(boost::interprocess::open_only, key);
 
-            util::Log(logDEBUG) << "opening " << shm.get_shmid() << " from id " << id;
+            util::Log(logDEBUG) << "opening " << (int) shm.get_shmid() << " from id " << (int) id;
 
             region = boost::interprocess::mapped_region(shm, boost::interprocess::read_only);
         }