From e6918187568dbd01842d8d1d2c808ce16a894239 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sun, 21 Apr 2024 13:54:28 +0200
Subject: Adding upstream version 18.2.2.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 src/rocksdb/memory/memory_allocator.h | 38 +++++++++++++++++++++++++++++++++++
 1 file changed, 38 insertions(+)
 create mode 100644 src/rocksdb/memory/memory_allocator.h

(limited to 'src/rocksdb/memory/memory_allocator.h')

diff --git a/src/rocksdb/memory/memory_allocator.h b/src/rocksdb/memory/memory_allocator.h
new file mode 100644
index 000000000..f1a548659
--- /dev/null
+++ b/src/rocksdb/memory/memory_allocator.h
@@ -0,0 +1,38 @@
+//  Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
+//  This source code is licensed under both the GPLv2 (found in the
+//  COPYING file in the root directory) and Apache 2.0 License
+//  (found in the LICENSE.Apache file in the root directory).
+//
+
+#pragma once
+
+#include "rocksdb/memory_allocator.h"
+
+namespace ROCKSDB_NAMESPACE {
+
+struct CustomDeleter {
+  CustomDeleter(MemoryAllocator* a = nullptr) : allocator(a) {}
+
+  void operator()(char* ptr) const {
+    if (allocator) {
+      allocator->Deallocate(reinterpret_cast<void*>(ptr));
+    } else {
+      delete[] ptr;
+    }
+  }
+
+  MemoryAllocator* allocator;
+};
+
+using CacheAllocationPtr = std::unique_ptr<char[], CustomDeleter>;
+
+inline CacheAllocationPtr AllocateBlock(size_t size,
+                                        MemoryAllocator* allocator) {
+  if (allocator) {
+    auto block = reinterpret_cast<char*>(allocator->Allocate(size));
+    return CacheAllocationPtr(block, allocator);
+  }
+  return CacheAllocationPtr(new char[size]);
+}
+
+}  // namespace ROCKSDB_NAMESPACE
-- 
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