intermediate changes

ref:cde9a383711a11544ce7e107a78147fb96cc4029

1 files changed, 32 insertions, 0 deletions

diff --git a/library/cpp/openssl/holders/holder.h b/library/cpp/openssl/holders/holder.h
new file mode 100644
index 0000000000..c2a26ce431
--- /dev/null
+++ b/library/cpp/openssl/holders/holder.h
@@ -0,0 +1,32 @@
+#pragma once
+
+#include <util/generic/yexception.h>
+
+namespace NOpenSSL {
+
+template <typename TType, auto Create, auto Destroy, class... Args>
+class THolder {
+public:
+    inline THolder(Args... args) {
+        Ptr = Create(args...);
+        if (!Ptr) {
+            throw std::bad_alloc();
+        }
+    }
+
+    THolder(const THolder&) = delete;
+    THolder& operator=(const THolder&) = delete;
+
+    inline ~THolder() noexcept {
+        Destroy(Ptr);
+    }
+
+    inline operator TType* () noexcept {
+        return Ptr;
+    }
+
+private:
+    TType* Ptr;
+};
+
+}