Mercurial > hg > nginx-quic
annotate src/os/unix/ngx_atomic.h @ 561:e48ebafc6939 release-0.3.2
nginx-0.3.2-RELEASE import
*) Feature: the Sun Studio 10 C compiler support.
*) Feature: the "proxy_upstream_max_fails",
"proxy_upstream_fail_timeout", "fastcgi_upstream_max_fails", and
"fastcgi_upstream_fail_timeout" directives.
author | Igor Sysoev <igor@sysoev.ru> |
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date | Wed, 12 Oct 2005 13:50:36 +0000 |
parents | 483cca230603 |
children | 9c2f3ed7a247 |
rev | line source |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
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4 */ |
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7 #ifndef _NGX_ATOMIC_H_INCLUDED_ |
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8 #define _NGX_ATOMIC_H_INCLUDED_ |
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11 #include <ngx_config.h> |
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12 #include <ngx_core.h> |
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547 | 15 #if ( __i386__ || __i386 ) |
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16 |
561 | 17 typedef int32_t ngx_atomic_int_t; |
18 typedef uint32_t ngx_atomic_uint_t; | |
495 | 19 typedef volatile ngx_atomic_uint_t ngx_atomic_t; |
561 | 20 #define NGX_ATOMIC_T_LEN sizeof("-2147483648") - 1 |
493 | 21 |
22 | |
561 | 23 #if ( __SUNPRO_C ) |
493 | 24 |
561 | 25 #define NGX_HAVE_ATOMIC_OPS 1 |
493 | 26 |
561 | 27 ngx_atomic_uint_t |
28 ngx_atomic_cmp_set(ngx_atomic_t *lock, ngx_atomic_uint_t old, | |
29 ngx_atomic_uint_t set); | |
493 | 30 |
561 | 31 ngx_atomic_int_t |
32 ngx_atomic_fetch_add(ngx_atomic_t *value, ngx_atomic_int_t add); | |
493 | 33 |
561 | 34 /* the code in src/os/unix/ngx_sunpro_x86.il */ |
493 | 35 |
36 | |
561 | 37 #else /* ( __GNUC__ || __INTEL_COMPILER ) */ |
38 | |
39 #define NGX_HAVE_ATOMIC_OPS 1 | |
493 | 40 |
561 | 41 #include "ngx_gcc_atomic_x86.h" |
493 | 42 |
561 | 43 #endif |
493 | 44 |
45 | |
547 | 46 #elif ( __amd64__ || __amd64 ) |
493 | 47 |
561 | 48 typedef int64_t ngx_atomic_int_t; |
49 typedef uint64_t ngx_atomic_uint_t; | |
495 | 50 typedef volatile ngx_atomic_uint_t ngx_atomic_t; |
561 | 51 #define NGX_ATOMIC_T_LEN sizeof("-9223372036854775808") - 1 |
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52 |
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561 | 54 #if ( __SUNPRO_C ) |
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561 | 56 #define NGX_HAVE_ATOMIC_OPS 1 |
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57 |
561 | 58 ngx_atomic_uint_t |
59 ngx_atomic_cmp_set(ngx_atomic_t *lock, ngx_atomic_uint_t old, | |
60 ngx_atomic_uint_t set); | |
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61 |
561 | 62 ngx_atomic_int_t |
63 ngx_atomic_fetch_add(ngx_atomic_t *value, ngx_atomic_int_t add); | |
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64 |
561 | 65 /* the code in src/os/unix/ngx_sunpro_amd64.il */ |
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561 | 68 #else /* ( __GNUC__ || __INTEL_COMPILER ) */ |
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561 | 70 #define NGX_HAVE_ATOMIC_OPS 1 |
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561 | 72 #include "ngx_gcc_atomic_amd64.h" |
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561 | 74 #endif |
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547 | 77 #elif ( __sparc__ || __sparcv9 ) |
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78 |
561 | 79 #if (NGX_PTR_SIZE == 8) |
80 | |
81 typedef int64_t ngx_atomic_int_t; | |
82 typedef uint64_t ngx_atomic_uint_t; | |
83 #define NGX_ATOMIC_T_LEN sizeof("-9223372036854775808") - 1 | |
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84 |
493 | 85 #else |
561 | 86 |
87 typedef int32_t ngx_atomic_int_t; | |
88 typedef uint32_t ngx_atomic_uint_t; | |
89 #define NGX_ATOMIC_T_LEN sizeof("-2147483648") - 1 | |
90 | |
493 | 91 #endif |
92 | |
495 | 93 typedef volatile ngx_atomic_uint_t ngx_atomic_t; |
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561 | 96 #if ( __SUNPRO_C ) |
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561 | 98 #define NGX_HAVE_ATOMIC_OPS 1 |
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99 |
561 | 100 #include "ngx_sunpro_atomic_sparc64.h" |
493 | 101 |
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561 | 103 #else /* ( __GNUC__ || __INTEL_COMPILER ) */ |
493 | 104 |
561 | 105 #define NGX_HAVE_ATOMIC_OPS 1 |
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561 | 107 #include "ngx_gcc_atomic_sparc64.h" |
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108 |
561 | 109 #endif |
493 | 110 |
111 | |
525 | 112 #elif ( __ppc__ || __powerpc__ ) |
493 | 113 |
114 #define NGX_HAVE_ATOMIC_OPS 1 | |
115 | |
116 #if (NGX_PTR_SIZE == 8) | |
561 | 117 |
118 typedef int64_t ngx_atomic_int_t; | |
119 typedef uint64_t ngx_atomic_uint_t; | |
120 #define NGX_ATOMIC_T_LEN sizeof("-9223372036854775808") - 1 | |
121 | |
493 | 122 #else |
561 | 123 |
124 typedef int32_t ngx_atomic_int_t; | |
125 typedef uint32_t ngx_atomic_uint_t; | |
126 #define NGX_ATOMIC_T_LEN sizeof("-2147483648") - 1 | |
127 | |
493 | 128 #endif |
129 | |
495 | 130 typedef volatile ngx_atomic_uint_t ngx_atomic_t; |
493 | 131 |
132 | |
561 | 133 #include "ngx_gcc_atomic_ppc.h" |
493 | 134 |
135 | |
561 | 136 #endif |
493 | 137 |
138 | |
561 | 139 #if !(NGX_HAVE_ATOMIC_OPS) |
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141 #define NGX_HAVE_ATOMIC_OPS 0 |
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142 |
561 | 143 typedef int32_t ngx_atomic_int_t; |
144 typedef uint32_t ngx_atomic_uint_t; | |
495 | 145 typedef volatile ngx_atomic_uint_t ngx_atomic_t; |
561 | 146 #define NGX_ATOMIC_T_LEN sizeof("-2147483648") - 1 |
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148 |
495 | 149 static ngx_inline ngx_atomic_uint_t |
150 ngx_atomic_cmp_set(ngx_atomic_t *lock, ngx_atomic_uint_t old, | |
151 ngx_atomic_uint_t set) | |
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152 { |
561 | 153 if (*lock == old { |
154 *lock = set; | |
155 return 1; | |
156 } | |
157 | |
158 return 0; | |
159 } | |
160 | |
161 | |
162 static ngx_inline ngx_atomic_int_t | |
163 ngx_atomic_fetch_add(ngx_atomic_t *value, ngx_atomic_int_t add) | |
164 { | |
165 ngx_atomic_int_t old; | |
166 | |
167 old = *value; | |
168 *value += add; | |
169 | |
170 return old; | |
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171 } |
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173 #endif |
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176 void ngx_spinlock(ngx_atomic_t *lock, ngx_uint_t spin); |
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178 #define ngx_trylock(lock) (*(lock) == 0 && ngx_atomic_cmp_set(lock, 0, 1)) |
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179 #define ngx_unlock(lock) *(lock) = 0 |
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182 #endif /* _NGX_ATOMIC_H_INCLUDED_ */ |