Mercurial > hg > nginx-quic
annotate src/os/unix/ngx_atomic.h @ 563:9c2f3ed7a247 release-0.3.3
nginx-0.3.3-RELEASE import
*) Change: the "bl" and "af" parameters of the "listen" directive was
renamed to the "backlog" and "accept_filter".
*) Feature: the "rcvbuf" and "sndbuf" parameters of the "listen"
directive.
*) Change: the "$msec" log parameter does not require now the
additional the gettimeofday() system call.
*) Feature: the -t switch now tests the "listen" directives.
*) Bugfix: if the invalid address was specified in the "listen"
directive, then after the -HUP signal nginx left an open socket in
the CLOSED state.
*) Bugfix: the mime type may be incorrectly set to default value for
index file with variable in the name; the bug had appeared in 0.3.0.
*) Feature: the "timer_resolution" directive.
*) Feature: the millisecond "$upstream_response_time" log parameter.
*) Bugfix: a temporary file with client request body now is removed
just after the response header was transferred to a client.
*) Bugfix: OpenSSL 0.9.6 compatibility.
*) Bugfix: the SSL certificate and key file paths could not be relative.
*) Bugfix: the "ssl_prefer_server_ciphers" directive did not work in
the ngx_imap_ssl_module.
*) Bugfix: the "ssl_protocols" directive allowed to specify the single
protocol only.
author | Igor Sysoev <igor@sysoev.ru> |
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date | Wed, 19 Oct 2005 12:33:58 +0000 |
parents | e48ebafc6939 |
children | 458b6c3fea65 |
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 |
563 | 36 #define ngx_memory_barrier() __asm (".volatile"); __asm (".nonvolatile") |
37 | |
493 | 38 |
561 | 39 #else /* ( __GNUC__ || __INTEL_COMPILER ) */ |
40 | |
41 #define NGX_HAVE_ATOMIC_OPS 1 | |
493 | 42 |
561 | 43 #include "ngx_gcc_atomic_x86.h" |
493 | 44 |
561 | 45 #endif |
493 | 46 |
47 | |
547 | 48 #elif ( __amd64__ || __amd64 ) |
493 | 49 |
561 | 50 typedef int64_t ngx_atomic_int_t; |
51 typedef uint64_t ngx_atomic_uint_t; | |
495 | 52 typedef volatile ngx_atomic_uint_t ngx_atomic_t; |
561 | 53 #define NGX_ATOMIC_T_LEN sizeof("-9223372036854775808") - 1 |
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561 | 56 #if ( __SUNPRO_C ) |
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561 | 58 #define NGX_HAVE_ATOMIC_OPS 1 |
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561 | 60 ngx_atomic_uint_t |
61 ngx_atomic_cmp_set(ngx_atomic_t *lock, ngx_atomic_uint_t old, | |
62 ngx_atomic_uint_t set); | |
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561 | 64 ngx_atomic_int_t |
65 ngx_atomic_fetch_add(ngx_atomic_t *value, ngx_atomic_int_t add); | |
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561 | 67 /* the code in src/os/unix/ngx_sunpro_amd64.il */ |
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563 | 69 #define ngx_memory_barrier() __asm (".volatile"); __asm (".nonvolatile") |
70 | |
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561 | 72 #else /* ( __GNUC__ || __INTEL_COMPILER ) */ |
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561 | 74 #define NGX_HAVE_ATOMIC_OPS 1 |
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561 | 76 #include "ngx_gcc_atomic_amd64.h" |
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561 | 78 #endif |
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547 | 81 #elif ( __sparc__ || __sparcv9 ) |
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82 |
561 | 83 #if (NGX_PTR_SIZE == 8) |
84 | |
85 typedef int64_t ngx_atomic_int_t; | |
86 typedef uint64_t ngx_atomic_uint_t; | |
87 #define NGX_ATOMIC_T_LEN sizeof("-9223372036854775808") - 1 | |
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88 |
493 | 89 #else |
561 | 90 |
91 typedef int32_t ngx_atomic_int_t; | |
92 typedef uint32_t ngx_atomic_uint_t; | |
93 #define NGX_ATOMIC_T_LEN sizeof("-2147483648") - 1 | |
94 | |
493 | 95 #endif |
96 | |
495 | 97 typedef volatile ngx_atomic_uint_t ngx_atomic_t; |
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561 | 100 #if ( __SUNPRO_C ) |
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561 | 102 #define NGX_HAVE_ATOMIC_OPS 1 |
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103 |
561 | 104 #include "ngx_sunpro_atomic_sparc64.h" |
493 | 105 |
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561 | 107 #else /* ( __GNUC__ || __INTEL_COMPILER ) */ |
493 | 108 |
561 | 109 #define NGX_HAVE_ATOMIC_OPS 1 |
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561 | 111 #include "ngx_gcc_atomic_sparc64.h" |
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112 |
561 | 113 #endif |
493 | 114 |
115 | |
525 | 116 #elif ( __ppc__ || __powerpc__ ) |
493 | 117 |
118 #define NGX_HAVE_ATOMIC_OPS 1 | |
119 | |
120 #if (NGX_PTR_SIZE == 8) | |
561 | 121 |
122 typedef int64_t ngx_atomic_int_t; | |
123 typedef uint64_t ngx_atomic_uint_t; | |
124 #define NGX_ATOMIC_T_LEN sizeof("-9223372036854775808") - 1 | |
125 | |
493 | 126 #else |
561 | 127 |
128 typedef int32_t ngx_atomic_int_t; | |
129 typedef uint32_t ngx_atomic_uint_t; | |
130 #define NGX_ATOMIC_T_LEN sizeof("-2147483648") - 1 | |
131 | |
493 | 132 #endif |
133 | |
495 | 134 typedef volatile ngx_atomic_uint_t ngx_atomic_t; |
493 | 135 |
136 | |
561 | 137 #include "ngx_gcc_atomic_ppc.h" |
493 | 138 |
139 | |
561 | 140 #endif |
493 | 141 |
142 | |
561 | 143 #if !(NGX_HAVE_ATOMIC_OPS) |
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145 #define NGX_HAVE_ATOMIC_OPS 0 |
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146 |
561 | 147 typedef int32_t ngx_atomic_int_t; |
148 typedef uint32_t ngx_atomic_uint_t; | |
495 | 149 typedef volatile ngx_atomic_uint_t ngx_atomic_t; |
561 | 150 #define NGX_ATOMIC_T_LEN sizeof("-2147483648") - 1 |
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152 |
495 | 153 static ngx_inline ngx_atomic_uint_t |
154 ngx_atomic_cmp_set(ngx_atomic_t *lock, ngx_atomic_uint_t old, | |
155 ngx_atomic_uint_t set) | |
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156 { |
561 | 157 if (*lock == old { |
158 *lock = set; | |
159 return 1; | |
160 } | |
161 | |
162 return 0; | |
163 } | |
164 | |
165 | |
166 static ngx_inline ngx_atomic_int_t | |
167 ngx_atomic_fetch_add(ngx_atomic_t *value, ngx_atomic_int_t add) | |
168 { | |
169 ngx_atomic_int_t old; | |
170 | |
171 old = *value; | |
172 *value += add; | |
173 | |
174 return old; | |
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175 } |
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177 #endif |
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180 void ngx_spinlock(ngx_atomic_t *lock, ngx_uint_t spin); |
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182 #define ngx_trylock(lock) (*(lock) == 0 && ngx_atomic_cmp_set(lock, 0, 1)) |
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183 #define ngx_unlock(lock) *(lock) = 0 |
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186 #endif /* _NGX_ATOMIC_H_INCLUDED_ */ |