Merge pull request #18060 from ghalliday/spanrefactor

HPCC-30734 Refactor the CSpan tracing classes Reviewed-By: Rodrigo Pastrana <[email protected]> Merged-by: Gavin Halliday <[email protected]>
hpcc-systems · Nov 28, 2023 · f5ef1ea · f5ef1ea
2 parents 45960f7 + 786c8ba
commit f5ef1ea
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diff --git a/system/jlib/jmutex.hpp b/system/jlib/jmutex.hpp
@@ -1002,6 +1002,13 @@ template <typename X>
 class Singleton
 {
 public:
+    X * query()
+    {
+        if (initialized.load(std::memory_order_acquire))
+            return singleton.load(std::memory_order_acquire);
+        return nullptr;
+    }
+
     template <typename FUNC> X * query(FUNC factory)
     {
         if (initialized.load(std::memory_order_acquire))