Add LL::scope_exit

1 files changed, 34 insertions, 0 deletions

diff --git a/indra/llcommon/scope_exit.h b/indra/llcommon/scope_exit.h
new file mode 100644
index 0000000000..00fab069c4
--- /dev/null
+++ b/indra/llcommon/scope_exit.h
@@ -0,0 +1,34 @@
+/**
+ * @file   scope_exit.h
+ * @author Nat Goodspeed
+ * @date   2024-08-15
+ * @brief  Cheap imitation of std::experimental::scope_exit
+ * 
+ * $LicenseInfo:firstyear=2024&license=viewerlgpl$
+ * Copyright (c) 2024, Linden Research, Inc.
+ * $/LicenseInfo$
+ */
+
+#if ! defined(LL_SCOPE_EXIT_H)
+#define LL_SCOPE_EXIT_H
+
+#include <functional>
+
+namespace LL
+{
+
+class scope_exit
+{
+public:
+    scope_exit(const std::function<void()>& func): mFunc(func) {}
+    scope_exit(const scope_exit&) = delete;
+    scope_exit& operator=(const scope_exit&) = delete;
+    ~scope_exit() { mFunc(); }
+
+private:
+    std::function<void()> mFunc;
+};
+
+} // namespace LL
+
+#endif /* ! defined(LL_SCOPE_EXIT_H) */