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
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
|
/*
* Copyright (C) Igor Sysoev
*/
#ifndef _NGX_ATOMIC_H_INCLUDED_
#define _NGX_ATOMIC_H_INCLUDED_
#include <ngx_config.h>
#include <ngx_core.h>
#if ( __i386__ || __i386 )
typedef int32_t ngx_atomic_int_t;
typedef uint32_t ngx_atomic_uint_t;
typedef volatile ngx_atomic_uint_t ngx_atomic_t;
#define NGX_ATOMIC_T_LEN sizeof("-2147483648") - 1
#if ( __SUNPRO_C )
#define NGX_HAVE_ATOMIC_OPS 1
ngx_atomic_uint_t
ngx_atomic_cmp_set(ngx_atomic_t *lock, ngx_atomic_uint_t old,
ngx_atomic_uint_t set);
ngx_atomic_int_t
ngx_atomic_fetch_add(ngx_atomic_t *value, ngx_atomic_int_t add);
/* the code in src/os/unix/ngx_sunpro_x86.il */
#else /* ( __GNUC__ || __INTEL_COMPILER ) */
#define NGX_HAVE_ATOMIC_OPS 1
#include "ngx_gcc_atomic_x86.h"
#endif
#elif ( __amd64__ || __amd64 )
typedef int64_t ngx_atomic_int_t;
typedef uint64_t ngx_atomic_uint_t;
typedef volatile ngx_atomic_uint_t ngx_atomic_t;
#define NGX_ATOMIC_T_LEN sizeof("-9223372036854775808") - 1
#if ( __SUNPRO_C )
#define NGX_HAVE_ATOMIC_OPS 1
ngx_atomic_uint_t
ngx_atomic_cmp_set(ngx_atomic_t *lock, ngx_atomic_uint_t old,
ngx_atomic_uint_t set);
ngx_atomic_int_t
ngx_atomic_fetch_add(ngx_atomic_t *value, ngx_atomic_int_t add);
/* the code in src/os/unix/ngx_sunpro_amd64.il */
#else /* ( __GNUC__ || __INTEL_COMPILER ) */
#define NGX_HAVE_ATOMIC_OPS 1
#include "ngx_gcc_atomic_amd64.h"
#endif
#elif ( __sparc__ || __sparcv9 )
#if (NGX_PTR_SIZE == 8)
typedef int64_t ngx_atomic_int_t;
typedef uint64_t ngx_atomic_uint_t;
#define NGX_ATOMIC_T_LEN sizeof("-9223372036854775808") - 1
#else
typedef int32_t ngx_atomic_int_t;
typedef uint32_t ngx_atomic_uint_t;
#define NGX_ATOMIC_T_LEN sizeof("-2147483648") - 1
#endif
typedef volatile ngx_atomic_uint_t ngx_atomic_t;
#if ( __SUNPRO_C )
#define NGX_HAVE_ATOMIC_OPS 1
#include "ngx_sunpro_atomic_sparc64.h"
#else /* ( __GNUC__ || __INTEL_COMPILER ) */
#define NGX_HAVE_ATOMIC_OPS 1
#include "ngx_gcc_atomic_sparc64.h"
#endif
#elif ( __ppc__ || __powerpc__ )
#define NGX_HAVE_ATOMIC_OPS 1
#if (NGX_PTR_SIZE == 8)
typedef int64_t ngx_atomic_int_t;
typedef uint64_t ngx_atomic_uint_t;
#define NGX_ATOMIC_T_LEN sizeof("-9223372036854775808") - 1
#else
typedef int32_t ngx_atomic_int_t;
typedef uint32_t ngx_atomic_uint_t;
#define NGX_ATOMIC_T_LEN sizeof("-2147483648") - 1
#endif
typedef volatile ngx_atomic_uint_t ngx_atomic_t;
#include "ngx_gcc_atomic_ppc.h"
#endif
#if !(NGX_HAVE_ATOMIC_OPS)
#define NGX_HAVE_ATOMIC_OPS 0
typedef int32_t ngx_atomic_int_t;
typedef uint32_t ngx_atomic_uint_t;
typedef volatile ngx_atomic_uint_t ngx_atomic_t;
#define NGX_ATOMIC_T_LEN sizeof("-2147483648") - 1
static ngx_inline ngx_atomic_uint_t
ngx_atomic_cmp_set(ngx_atomic_t *lock, ngx_atomic_uint_t old,
ngx_atomic_uint_t set)
{
if (*lock == old {
*lock = set;
return 1;
}
return 0;
}
static ngx_inline ngx_atomic_int_t
ngx_atomic_fetch_add(ngx_atomic_t *value, ngx_atomic_int_t add)
{
ngx_atomic_int_t old;
old = *value;
*value += add;
return old;
}
#endif
void ngx_spinlock(ngx_atomic_t *lock, ngx_uint_t spin);
#define ngx_trylock(lock) (*(lock) == 0 && ngx_atomic_cmp_set(lock, 0, 1))
#define ngx_unlock(lock) *(lock) = 0
#endif /* _NGX_ATOMIC_H_INCLUDED_ */
|
