You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
rocksdb/util/cache_allocator.h

39 lines
1023 B

// 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/cache_allocator.h"
namespace rocksdb {
struct CustomDeleter {
CustomDeleter(CacheAllocator* a = nullptr) : allocator(a) {}
void operator()(char* ptr) const {
if (allocator) {
allocator->Deallocate(reinterpret_cast<void*>(ptr));
} else {
delete[] ptr;
}
}
CacheAllocator* allocator;
};
using CacheAllocationPtr = std::unique_ptr<char[], CustomDeleter>;
inline CacheAllocationPtr AllocateBlock(size_t size,
CacheAllocator* allocator) {
if (allocator) {
auto block = reinterpret_cast<char*>(allocator->Allocate(size));
return CacheAllocationPtr(block, allocator);
}
return CacheAllocationPtr(new char[size]);
}
} // namespace rocksdb