2 * Copyright 2016-present Facebook, Inc.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
17 #include <folly/portability/Malloc.h>
19 #if !defined(USE_JEMALLOC) && !defined(FOLLY_USE_JEMALLOC)
20 #if defined(__APPLE__) && !defined(FOLLY_HAVE_MALLOC_USABLE_SIZE)
21 #include <malloc/malloc.h> // @manual
23 extern "C" size_t malloc_usable_size(void* ptr) {
24 return malloc_size(ptr);
27 extern "C" size_t malloc_usable_size(void* addr) {