1 files changed, 53 insertions, 0 deletions
diff --git a/source/blender/blenlib/intern/BLI_lazy_init.cc b/source/blender/blenlib/intern/BLI_lazy_init.cc
new file mode 100644
index 00000000000..a47c72203af
--- /dev/null
+++ b/source/blender/blenlib/intern/BLI_lazy_init.cc
@@ -0,0 +1,53 @@
+/*
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+#include <mutex>
+
+#include "BLI_stack_cxx.h"
+
+struct FreeFunc {
+  std::function<void()> func;
+  const char *name;
+};
+
+BLI::Stack<FreeFunc> free_functions;
+std::mutex store_free_func_mutex;
+
+void BLI_lazy_init_free_all()
+{
+  while (!free_functions.is_empty()) {
+    FreeFunc free_object = free_functions.pop();
+    free_object.func();
+  }
+  free_functions.clear_and_make_small();
+}
+
+void BLI_lazy_init_list_all()
+{
+  for (FreeFunc &func : free_functions) {
+    std::cout << func.name << "\n";
+  }
+}
+
+namespace BLI {
+
+void lazy_init_register(std::function<void()> free_func, const char *name)
+{
+  std::lock_guard<std::mutex> lock(store_free_func_mutex);
+  free_functions.push({free_func, name});
+}
+
+}  // namespace BLI