open62541: Add option to skip deletion of data structures

This is useful, if the deleter should only be active in case of error
returns. When a function returns successfully the data should not be
deleted.

Change-Id: I9da57fa242bbe4346ea5f11d5793f02e78f8b9a5
Reviewed-by: Jannis Völker <jannis.voelker@basyskom.com>
Reviewed-by: Frank Meerkoetter <frank.meerkoetter@basyskom.com>

1 files changed, 9 insertions, 0 deletions

diff --git a/src/plugins/opcua/open62541/qopen62541utils.h b/src/plugins/opcua/open62541/qopen62541utils.h
index 5a40c6c..fd13219 100644
--- a/src/plugins/opcua/open62541/qopen62541utils.h
+++ b/src/plugins/opcua/open62541/qopen62541utils.h
@@ -59,6 +59,11 @@ public:
         if (m_data)
             m_function(m_data);
     }
+    void release()
+    {
+        m_data = nullptr;
+        m_function = nullptr;
+    }
 private:
     T *m_data {nullptr};
     std::function<void(T *attribute)> m_function;
@@ -79,6 +84,10 @@ public:
         if (m_data && m_arrayLength > 0)
             UA_Array_delete(m_data, m_arrayLength, &UA_TYPES[TYPEINDEX]);
     }
+    void release() {
+        m_data = nullptr;
+        m_arrayLength = 0;
+    }
 private:
     void *m_data {nullptr};
     size_t m_arrayLength {0};