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// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
// Copyright (c) 2019 Intel Corporation
// 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).
#ifdef MEMKIND
#include <memkind.h>
#endif // MEMKIND
#include "memory/memkind_kmem_allocator.h"
namespace ROCKSDB_NAMESPACE {
Status MemkindKmemAllocator::PrepareOptions(const ConfigOptions& options) {
std::string message;
if (!IsSupported(&message)) {
return Status::NotSupported(message);
} else {
return MemoryAllocator::PrepareOptions(options);
}
}
#ifdef MEMKIND
void* MemkindKmemAllocator::Allocate(size_t size) {
void* p = memkind_malloc(MEMKIND_DAX_KMEM, size);
if (p == NULL) {
throw std::bad_alloc();
}
return p;
}
void MemkindKmemAllocator::Deallocate(void* p) {
memkind_free(MEMKIND_DAX_KMEM, p);
}
#ifdef ROCKSDB_MALLOC_USABLE_SIZE
size_t MemkindKmemAllocator::UsableSize(void* p,
size_t /*allocation_size*/) const {
return memkind_malloc_usable_size(MEMKIND_DAX_KMEM, p);
}
#endif // ROCKSDB_MALLOC_USABLE_SIZE
#endif // MEMKIND
} // namespace ROCKSDB_NAMESPACE
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