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external/parallel-rdp-standalone/util/aligned_alloc.hpp

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+/* Copyright (c) 2017-2022 Hans-Kristian Arntzen
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+ * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#pragma once
+
+#include <stddef.h>
+#include <stdexcept>
+#include <new>
+
+namespace Util
+{
+void *memalign_alloc(size_t boundary, size_t size);
+void *memalign_calloc(size_t boundary, size_t size);
+void memalign_free(void *ptr);
+
+template <typename T>
+struct AlignedAllocation
+{
+    static void *operator new(size_t size)
+    {
+        void *ret = ::Util::memalign_alloc(alignof(T), size);
+        if (!ret) throw std::bad_alloc();
+        return ret;
+    }
+
+    static void *operator new[](size_t size)
+    {
+        void *ret = ::Util::memalign_alloc(alignof(T), size);
+        if (!ret) throw std::bad_alloc();
+        return ret;
+    }
+
+    static void operator delete(void *ptr)
+    {
+        return ::Util::memalign_free(ptr);
+    }
+
+    static void operator delete[](void *ptr)
+    {
+        return ::Util::memalign_free(ptr);
+    }
+};
+}