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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
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
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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_pools.h"
22 #include "apr_private.h"
23 #include "apr_atomic.h"
24 
25 #if defined(USE_ATOMICS_GENERIC)
26 /* noop */
27 #elif HAVE_ATOMIC_BUILTINS
28 # define USE_ATOMICS_BUILTINS
29 #elif defined(SOLARIS2) && SOLARIS2 >= 10
30 # define USE_ATOMICS_SOLARIS
31 # define NEED_ATOMICS_GENERIC64
32 #elif defined(__GNUC__) && defined(__STRICT_ANSI__)
33 /* force use of generic atomics if building e.g. with -std=c89, which
34  * doesn't allow inline asm */
35 # define USE_ATOMICS_GENERIC
36 #elif defined(__GNUC__) && (defined(__i386__) || defined(__x86_64__))
37 # define USE_ATOMICS_IA32
38 # define NEED_ATOMICS_GENERIC64
39 #elif defined(__GNUC__) && (defined(__PPC__) || defined(__ppc__))
40 # define USE_ATOMICS_PPC
41 # define NEED_ATOMICS_GENERIC64
42 #elif defined(__GNUC__) && (defined(__s390__) || defined(__s390x__))
43 # define USE_ATOMICS_S390
44 # define NEED_ATOMICS_GENERIC64
45 #else
46 # define USE_ATOMICS_GENERIC
47 #endif
48 
49 #if defined(USE_ATOMICS_GENERIC) || defined (NEED_ATOMICS_GENERIC64)
50 apr_status_t apr__atomic_generic64_init(apr_pool_t *p);
51 #endif
52 
53 #endif /* ATOMIC_H */
APR memory allocation.
APR Platform Definitions.
apr_pool_t * p
APR Atomic Operations.
struct apr_pool_t apr_pool_t
Definition: apr_pools.h:60
int apr_status_t
Definition: apr_errno.h:44