1/* Licensed to the Apache Software Foundation (ASF) under one or more
2 * contributor license agreements.  See the NOTICE file distributed with
3 * this work for additional information regarding copyright ownership.
4 * The ASF licenses this file to You under the Apache License, Version 2.0
5 * (the "License"); you may not use this file except in compliance with
6 * the License.  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#ifndef ATOMIC_H
18#define ATOMIC_H
19
20#include "apr.h"
21#include "apr_private.h"
22#include "apr_atomic.h"
23#include "apr_thread_mutex.h"
24
25#if defined(USE_ATOMICS_GENERIC)
26/* noop */
27#elif defined(__GNUC__) && defined(__STRICT_ANSI__)
28/* force use of generic atomics if building e.g. with -std=c89, which
29 * doesn't allow inline asm */
30#   define USE_ATOMICS_GENERIC
31#elif HAVE_ATOMIC_BUILTINS
32#   define USE_ATOMICS_BUILTINS
33#elif defined(SOLARIS2) && SOLARIS2 >= 10
34#   define USE_ATOMICS_SOLARIS
35#elif defined(__GNUC__) && (defined(__i386__) || defined(__x86_64__))
36#   define USE_ATOMICS_IA32
37#elif defined(__GNUC__) && (defined(__PPC__) || defined(__ppc__))
38#   define USE_ATOMICS_PPC
39#elif defined(__GNUC__) && (defined(__s390__) || defined(__s390x__))
40#   define USE_ATOMICS_S390
41#else
42#   define USE_ATOMICS_GENERIC
43#endif
44
45#endif /* ATOMIC_H */
46