[SYCL][NATIVECPU] added initial urQueueGetInfo implementation (#18646)

An initial implementation of urQueueGetInfo to help pass more e2e tests.
Note that this PR does not yet address thread safety of the Queue API -
this will be done in a subsequent PR.

Fixes at least `Basic/in_order_queue_status_khr_empty.cpp` on NativeCPU.

Author: uwedolinsky

unified-runtime/source/adapters/native_cpu/queue.cpp

@@ -14,13 +14,26 @@
 #include "ur/ur.hpp"
 #include "ur_api.h"
 
-UR_APIEXPORT ur_result_t UR_APICALL urQueueGetInfo(ur_queue_handle_t /*hQueue*/,
-                                                   ur_queue_info_t /*propName*/,
-                                                   size_t /*propSize*/,
-                                                   void * /*pPropValue*/,
-                                                   size_t * /*pPropSizeRet*/) {
-
-  DIE_NO_IMPLEMENTATION;
+UR_APIEXPORT ur_result_t UR_APICALL urQueueGetInfo(ur_queue_handle_t hQueue,
+                                                   ur_queue_info_t propName,
+                                                   size_t propSize,
+                                                   void *pPropValue,
+                                                   size_t *pPropSizeRet) {
+
+  UrReturnHelper ReturnValue(propSize, pPropValue, pPropSizeRet);
+
+  switch (propName) {
+  case UR_QUEUE_INFO_CONTEXT:
+    return ReturnValue(hQueue->getContext());
+  case UR_QUEUE_INFO_DEVICE:
+    return ReturnValue(hQueue->getDevice());
+  case UR_QUEUE_INFO_REFERENCE_COUNT:
+    return ReturnValue(hQueue->getReferenceCount());
+  case UR_QUEUE_INFO_EMPTY:
+    return ReturnValue(hQueue->isEmpty());
+  default:
+    return UR_RESULT_ERROR_UNSUPPORTED_ENUMERATION;
+  }
 }
 
 UR_APIEXPORT ur_result_t UR_APICALL urQueueCreate(

unified-runtime/source/adapters/native_cpu/queue.hpp

@@ -47,6 +47,11 @@ struct ur_queue_handle_t_ : RefCounted {
 
   bool isProfiling() const { return profilingEnabled; }
 
+  bool isEmpty() const {
+    // TODO: check that events are done if there were any
+    return events.size() == 0;
+  }
+
 private:
   ur_device_handle_t device;
   ur_context_handle_t context;