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Diffstat (limited to '')
-rw-r--r-- | src/rocksdb/memory/memkind_kmem_allocator.cc | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/src/rocksdb/memory/memkind_kmem_allocator.cc b/src/rocksdb/memory/memkind_kmem_allocator.cc new file mode 100644 index 000000000..635c2210e --- /dev/null +++ b/src/rocksdb/memory/memkind_kmem_allocator.cc @@ -0,0 +1,44 @@ +// 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 |