refactor: Use move semantics in CCheckQueue::Add

Co-authored-by: Martin Leitner-Ankerl <martin.ankerl@gmail.com>

src/checkqueue.h

@@ -11,6 +11,7 @@
 #include <util/threadnames.h>
 
 #include <algorithm>
+#include <iterator>
 #include <vector>
 
 template <typename T>
@@ -173,10 +174,7 @@ public:
 
         {
             LOCK(m_mutex);
-            for (T& check : vChecks) {
+            queue.insert(queue.end(), std::make_move_iterator(vChecks.begin()), std::make_move_iterator(vChecks.end()));
-                queue.emplace_back();
-                check.swap(queue.back());
-            }
             nTodo += vChecks.size();
         }
 

src/test/checkqueue_tests.cpp

@@ -140,6 +140,17 @@ struct FrozenCleanupCheck {
             cv.wait(l, []{ return nFrozen.load(std::memory_order_relaxed) == 0;});
         }
     }
+    FrozenCleanupCheck(FrozenCleanupCheck&& other) noexcept
+    {
+        should_freeze = other.should_freeze;
+        other.should_freeze = false;
+    }
+    FrozenCleanupCheck& operator=(FrozenCleanupCheck&& other) noexcept
+    {
+        should_freeze = other.should_freeze;
+        other.should_freeze = false;
+        return *this;
+    }
     void swap(FrozenCleanupCheck& x) noexcept
     {
         std::swap(should_freeze, x.should_freeze);

src/test/fuzz/checkqueue.cpp

@@ -13,7 +13,7 @@
 
 namespace {
 struct DumbCheck {
-    const bool result = false;
+    bool result = false;
 
     DumbCheck() = default;