summaryrefslogtreecommitdiff
path: root/atomic/netware/apr_atomic.c
blob: 3df3a04d7ff1b673de0730ffbc933e32b71aa045 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
/* Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#include "apr_arch_atomic.h"

#include <stdlib.h>

APR_DECLARE(apr_status_t) apr_atomic_init(apr_pool_t *pool)
{
#if defined(USE_ATOMICS_GENERIC64)
    return apr__atomic_generic64_init(p);
#else
    return APR_SUCCESS;
#endif
}

APR_DECLARE(apr_uint32_t) apr_atomic_add32(volatile apr_uint32_t *mem, apr_uint32_t val)
{
    return atomic_xchgadd((unsigned long *)mem,(unsigned long)val);
}

APR_DECLARE(void) apr_atomic_sub32(volatile apr_uint32_t *mem, apr_uint32_t val)
{
    atomic_sub((unsigned long *)mem,(unsigned long)val);
}

APR_DECLARE(apr_uint32_t) apr_atomic_inc32(volatile apr_uint32_t *mem)
{
    return atomic_xchgadd((unsigned long *)mem, 1);
}

APR_DECLARE(void) apr_atomic_set32(volatile apr_uint32_t *mem, apr_uint32_t val)
{
    *mem = val;
}

APR_DECLARE(apr_uint32_t) apr_atomic_read32(volatile apr_uint32_t *mem)
{
    return *mem;
}

APR_DECLARE(apr_uint32_t) apr_atomic_cas32(volatile apr_uint32_t *mem, apr_uint32_t with,apr_uint32_t cmp)
{
    return atomic_cmpxchg((unsigned long *)mem,(unsigned long)cmp,(unsigned long)with);
}

APR_DECLARE(apr_uint32_t) apr_atomic_xchg32(volatile apr_uint32_t *mem, apr_uint32_t val)
{
    return atomic_xchg((unsigned long *)mem,(unsigned long)val);
}

APR_DECLARE(int) apr_atomic_dec32(volatile apr_uint32_t *mem)
{
    return (atomic_xchgadd((unsigned long *)mem, 0xFFFFFFFF) - 1);
}

APR_DECLARE(void *) apr_atomic_casptr(void *volatile *mem, void *with, const void *cmp)
{
    return (void*)atomic_cmpxchg((unsigned long *)mem,(unsigned long)cmp,(unsigned long)with);
}

APR_DECLARE(void*) apr_atomic_xchgptr(void *volatile *mem, void *with)
{
    return (void*)atomic_xchg((unsigned long *)mem,(unsigned long)with);
}