import quincy beta 17.1.0

[ceph.git] / ceph / src / rocksdb / memory / memkind_kmem_allocator.cc

diff --git a/ceph/src/rocksdb/memory/memkind_kmem_allocator.cc b/ceph/src/rocksdb/memory/memkind_kmem_allocator.cc
new file mode 100644 (file)
index 0000000..0ce985f
--- /dev/null
+++ b/ceph/src/rocksdb/memory/memkind_kmem_allocator.cc
@@ -0,0 +1,33 @@
+//  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_kmem_allocator.h"
+
+namespace rocksdb {
+
+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
+
+}  // namespace rocksdb
+#endif  // MEMKIND