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apr_arch_atomic.h
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1 /* Licensed to the Apache Software Foundation (ASF) under one or more
2  * contributor license agreements. See the NOTICE file distributed with
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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
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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,
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13  * See the License for the specific language governing permissions and
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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 # define NEED_ATOMICS_GENERIC64
38 #elif defined(__GNUC__) && (defined(__PPC__) || defined(__ppc__))
39 # define USE_ATOMICS_PPC
40 # define NEED_ATOMICS_GENERIC64
41 #elif defined(__GNUC__) && (defined(__s390__) || defined(__s390x__))
42 # define USE_ATOMICS_S390
43 # define NEED_ATOMICS_GENERIC64
44 #else
45 # define USE_ATOMICS_GENERIC
46 # define NEED_ATOMICS_GENERIC64
47 #endif
48 
49 #endif /* ATOMIC_H */
APR Thread Mutex Routines.
APR Platform Definitions.
APR Atomic Operations.