proxygen
Malloc.h
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1 /*
2  * Copyright 2016-present Facebook, Inc.
3  *
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
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
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.
15  */
16 
17 #pragma once
18 
19 #include <stdlib.h>
20 
21 #include <folly/CPortability.h>
23 
24 #if (defined(USE_JEMALLOC) || defined(FOLLY_USE_JEMALLOC)) && !FOLLY_SANITIZE
25 // JEMalloc provides it's own implementation of
26 // malloc_usable_size, and that's what we should be using.
27 #include <jemalloc/jemalloc.h>
28 #else
29 #ifndef __APPLE__
30 #include <malloc.h>
31 #endif
32 
33 #if defined(__APPLE__) && !defined(FOLLY_HAVE_MALLOC_USABLE_SIZE)
34 // MacOS doesn't have malloc_usable_size()
35 extern "C" size_t malloc_usable_size(void* ptr);
36 #elif defined(_WIN32)
37 extern "C" size_t malloc_usable_size(void* ptr);
38 #endif
39 #endif
void * ptr