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annotate src/os/unix/ngx_atomic.h @ 939:782cf4c13b8d

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use MacOSX atomic(3) and barrier(3) operations
author Igor Sysoev <igor@sysoev.ru>
date Thu, 21 Dec 2006 16:33:31 +0000
parents c73c5c58c619
children ca9fe5ae412b
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1
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2 /*
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3 * Copyright (C) Igor Sysoev
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4 */
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679f60139863 nginx-0.0.1-2003-12-19-11:15:11 import
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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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14
939
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15 #if (NGX_DARWIN)
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16
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17 /*
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18 * use MacOSX atomic(3) and barrier(3) operations
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19 * optimized at run time for UP and SMP
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20 */
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21
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22 #include <libkern/OSAtomic.h>
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23
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24 /* "bool" conflicts with perl's CORE/handy.h
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25 * "true" and "false" conflict with nginx, and of course we can rename them,
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26 * but we need to undef "bool" anyway
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27 */
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28 #undef bool
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29 #undef true
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30 #undef false
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31
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32
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33 #define NGX_HAVE_ATOMIC_OPS 1
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34
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35 #if (NGX_PTR_SIZE == 8)
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36
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37 typedef int64_t ngx_atomic_int_t;
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38 typedef uint64_t ngx_atomic_uint_t;
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39 #define NGX_ATOMIC_T_LEN sizeof("-9223372036854775808") - 1
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40
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41 #define ngx_atomic_cmp_set(lock, old, new) \
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42 OSAtomicCompareAndSwap64Barrier(old, new, (int64_t *) lock)
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43
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44 #define ngx_atomic_fetch_add(value, add) \
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45 (OSAtomicAdd64(add, (int64_t *) value) - add)
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46
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47 #else
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48
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49 typedef int32_t ngx_atomic_int_t;
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50 typedef uint32_t ngx_atomic_uint_t;
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51 #define NGX_ATOMIC_T_LEN sizeof("-2147483648") - 1
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52
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53 #define ngx_atomic_cmp_set(lock, old, new) \
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54 OSAtomicCompareAndSwap32Barrier(old, new, (int32_t *) lock)
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55
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56 #define ngx_atomic_fetch_add(value, add) \
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57 (OSAtomicAdd32(add, (int32_t *) value) - add)
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58
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59 #endif
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60
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61 #define ngx_memory_barrier() OSMemoryBarrier()
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62
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63 #define ngx_cpu_pause()
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64
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65 typedef volatile ngx_atomic_uint_t ngx_atomic_t;
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66
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67
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68 #else /* !(NGX_DARWIN) */
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69
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70
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71 #if ( __i386__ || __i386 )
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73 typedef int32_t ngx_atomic_int_t;
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74 typedef uint32_t ngx_atomic_uint_t;
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75 typedef volatile ngx_atomic_uint_t ngx_atomic_t;
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76 #define NGX_ATOMIC_T_LEN sizeof("-2147483648") - 1
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79 #if ( __SUNPRO_C )
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81 #define NGX_HAVE_ATOMIC_OPS 1
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83 ngx_atomic_uint_t
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84 ngx_atomic_cmp_set(ngx_atomic_t *lock, ngx_atomic_uint_t old,
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85 ngx_atomic_uint_t set);
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86
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87 ngx_atomic_int_t
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88 ngx_atomic_fetch_add(ngx_atomic_t *value, ngx_atomic_int_t add);
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90 /* the code in src/os/unix/ngx_sunpro_x86.il */
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91
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92 #define ngx_memory_barrier() __asm (".volatile"); __asm (".nonvolatile")
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93 #define ngx_cpu_pause() __asm ("pause")
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96 #else /* ( __GNUC__ || __INTEL_COMPILER ) */
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97
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98 #define NGX_HAVE_ATOMIC_OPS 1
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100 #include "ngx_gcc_atomic_x86.h"
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102 #endif
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104
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105 #elif ( __amd64__ || __amd64 )
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106
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107 typedef int64_t ngx_atomic_int_t;
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108 typedef uint64_t ngx_atomic_uint_t;
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109 typedef volatile ngx_atomic_uint_t ngx_atomic_t;
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110 #define NGX_ATOMIC_T_LEN sizeof("-9223372036854775808") - 1
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112
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113 #if ( __SUNPRO_C )
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115 #define NGX_HAVE_ATOMIC_OPS 1
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117 ngx_atomic_uint_t
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118 ngx_atomic_cmp_set(ngx_atomic_t *lock, ngx_atomic_uint_t old,
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119 ngx_atomic_uint_t set);
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121 ngx_atomic_int_t
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122 ngx_atomic_fetch_add(ngx_atomic_t *value, ngx_atomic_int_t add);
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124 /* the code in src/os/unix/ngx_sunpro_amd64.il */
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126 #define ngx_memory_barrier() __asm (".volatile"); __asm (".nonvolatile")
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diff changeset
127 #define ngx_cpu_pause() __asm ("pause")
563
9c2f3ed7a247 nginx-0.3.3-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 561
diff changeset
128
435
5cdc4838d4e8 nginx-0.0.11-2004-09-22-20:18:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 433
diff changeset
129
561
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 551
diff changeset
130 #else /* ( __GNUC__ || __INTEL_COMPILER ) */
266
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 213
diff changeset
131
561
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 551
diff changeset
132 #define NGX_HAVE_ATOMIC_OPS 1
266
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 213
diff changeset
133
561
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 551
diff changeset
134 #include "ngx_gcc_atomic_amd64.h"
266
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 213
diff changeset
135
561
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 551
diff changeset
136 #endif
266
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 213
diff changeset
137
301
744965ec6275 nginx-0.0.3-2004-03-31-19:26:46 import
Igor Sysoev <igor@sysoev.ru>
parents: 300
diff changeset
138
547
818fbd4750b9 nginx-0.2.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 525
diff changeset
139 #elif ( __sparc__ || __sparcv9 )
425
bd39260a1383 nginx-0.0.10-2004-09-14-19:55:24 import
Igor Sysoev <igor@sysoev.ru>
parents: 373
diff changeset
140
561
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 551
diff changeset
141 #if (NGX_PTR_SIZE == 8)
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 551
diff changeset
142
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 551
diff changeset
143 typedef int64_t ngx_atomic_int_t;
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 551
diff changeset
144 typedef uint64_t ngx_atomic_uint_t;
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 551
diff changeset
145 #define NGX_ATOMIC_T_LEN sizeof("-9223372036854775808") - 1
435
5cdc4838d4e8 nginx-0.0.11-2004-09-22-20:18:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 433
diff changeset
146
493
975f62e77f02 nginx-0.1.21-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
147 #else
561
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 551
diff changeset
148
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 551
diff changeset
149 typedef int32_t ngx_atomic_int_t;
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 551
diff changeset
150 typedef uint32_t ngx_atomic_uint_t;
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 551
diff changeset
151 #define NGX_ATOMIC_T_LEN sizeof("-2147483648") - 1
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 551
diff changeset
152
493
975f62e77f02 nginx-0.1.21-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
153 #endif
975f62e77f02 nginx-0.1.21-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
154
495
fc9909c369b2 nginx-0.1.22-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 493
diff changeset
155 typedef volatile ngx_atomic_uint_t ngx_atomic_t;
425
bd39260a1383 nginx-0.0.10-2004-09-14-19:55:24 import
Igor Sysoev <igor@sysoev.ru>
parents: 373
diff changeset
156
bd39260a1383 nginx-0.0.10-2004-09-14-19:55:24 import
Igor Sysoev <igor@sysoev.ru>
parents: 373
diff changeset
157
561
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 551
diff changeset
158 #if ( __SUNPRO_C )
425
bd39260a1383 nginx-0.0.10-2004-09-14-19:55:24 import
Igor Sysoev <igor@sysoev.ru>
parents: 373
diff changeset
159
561
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 551
diff changeset
160 #define NGX_HAVE_ATOMIC_OPS 1
425
bd39260a1383 nginx-0.0.10-2004-09-14-19:55:24 import
Igor Sysoev <igor@sysoev.ru>
parents: 373
diff changeset
161
561
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 551
diff changeset
162 #include "ngx_sunpro_atomic_sparc64.h"
493
975f62e77f02 nginx-0.1.21-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
163
425
bd39260a1383 nginx-0.0.10-2004-09-14-19:55:24 import
Igor Sysoev <igor@sysoev.ru>
parents: 373
diff changeset
164
561
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 551
diff changeset
165 #else /* ( __GNUC__ || __INTEL_COMPILER ) */
493
975f62e77f02 nginx-0.1.21-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
166
561
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 551
diff changeset
167 #define NGX_HAVE_ATOMIC_OPS 1
425
bd39260a1383 nginx-0.0.10-2004-09-14-19:55:24 import
Igor Sysoev <igor@sysoev.ru>
parents: 373
diff changeset
168
561
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 551
diff changeset
169 #include "ngx_gcc_atomic_sparc64.h"
425
bd39260a1383 nginx-0.0.10-2004-09-14-19:55:24 import
Igor Sysoev <igor@sysoev.ru>
parents: 373
diff changeset
170
561
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 551
diff changeset
171 #endif
493
975f62e77f02 nginx-0.1.21-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
172
975f62e77f02 nginx-0.1.21-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
173
613
c73c5c58c619 nginx-0.3.28-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 611
diff changeset
174 #elif ( __powerpc__ || __POWERPC__ )
493
975f62e77f02 nginx-0.1.21-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
175
975f62e77f02 nginx-0.1.21-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
176 #define NGX_HAVE_ATOMIC_OPS 1
975f62e77f02 nginx-0.1.21-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
177
975f62e77f02 nginx-0.1.21-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
178 #if (NGX_PTR_SIZE == 8)
561
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 551
diff changeset
179
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 551
diff changeset
180 typedef int64_t ngx_atomic_int_t;
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 551
diff changeset
181 typedef uint64_t ngx_atomic_uint_t;
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 551
diff changeset
182 #define NGX_ATOMIC_T_LEN sizeof("-9223372036854775808") - 1
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 551
diff changeset
183
493
975f62e77f02 nginx-0.1.21-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
184 #else
561
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 551
diff changeset
185
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 551
diff changeset
186 typedef int32_t ngx_atomic_int_t;
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 551
diff changeset
187 typedef uint32_t ngx_atomic_uint_t;
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 551
diff changeset
188 #define NGX_ATOMIC_T_LEN sizeof("-2147483648") - 1
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 551
diff changeset
189
493
975f62e77f02 nginx-0.1.21-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
190 #endif
975f62e77f02 nginx-0.1.21-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
191
495
fc9909c369b2 nginx-0.1.22-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 493
diff changeset
192 typedef volatile ngx_atomic_uint_t ngx_atomic_t;
493
975f62e77f02 nginx-0.1.21-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
193
975f62e77f02 nginx-0.1.21-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
194
561
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 551
diff changeset
195 #include "ngx_gcc_atomic_ppc.h"
493
975f62e77f02 nginx-0.1.21-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
196
975f62e77f02 nginx-0.1.21-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
197
561
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 551
diff changeset
198 #endif
493
975f62e77f02 nginx-0.1.21-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
199
939
782cf4c13b8d use MacOSX atomic(3) and barrier(3) operations
Igor Sysoev <igor@sysoev.ru>
parents: 613
diff changeset
200 #endif
782cf4c13b8d use MacOSX atomic(3) and barrier(3) operations
Igor Sysoev <igor@sysoev.ru>
parents: 613
diff changeset
201
493
975f62e77f02 nginx-0.1.21-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
202
561
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 551
diff changeset
203 #if !(NGX_HAVE_ATOMIC_OPS)
266
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 213
diff changeset
204
435
5cdc4838d4e8 nginx-0.0.11-2004-09-22-20:18:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 433
diff changeset
205 #define NGX_HAVE_ATOMIC_OPS 0
5cdc4838d4e8 nginx-0.0.11-2004-09-22-20:18:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 433
diff changeset
206
561
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 551
diff changeset
207 typedef int32_t ngx_atomic_int_t;
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 551
diff changeset
208 typedef uint32_t ngx_atomic_uint_t;
495
fc9909c369b2 nginx-0.1.22-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 493
diff changeset
209 typedef volatile ngx_atomic_uint_t ngx_atomic_t;
561
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 551
diff changeset
210 #define NGX_ATOMIC_T_LEN sizeof("-2147483648") - 1
266
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 213
diff changeset
211
435
5cdc4838d4e8 nginx-0.0.11-2004-09-22-20:18:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 433
diff changeset
212
495
fc9909c369b2 nginx-0.1.22-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 493
diff changeset
213 static ngx_inline ngx_atomic_uint_t
fc9909c369b2 nginx-0.1.22-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 493
diff changeset
214 ngx_atomic_cmp_set(ngx_atomic_t *lock, ngx_atomic_uint_t old,
fc9909c369b2 nginx-0.1.22-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 493
diff changeset
215 ngx_atomic_uint_t set)
435
5cdc4838d4e8 nginx-0.0.11-2004-09-22-20:18:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 433
diff changeset
216 {
571
458b6c3fea65 nginx-0.3.7-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 563
diff changeset
217 if (*lock == old) {
561
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 551
diff changeset
218 *lock = set;
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 551
diff changeset
219 return 1;
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 551
diff changeset
220 }
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 551
diff changeset
221
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 551
diff changeset
222 return 0;
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 551
diff changeset
223 }
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 551
diff changeset
224
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 551
diff changeset
225
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 551
diff changeset
226 static ngx_inline ngx_atomic_int_t
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 551
diff changeset
227 ngx_atomic_fetch_add(ngx_atomic_t *value, ngx_atomic_int_t add)
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 551
diff changeset
228 {
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 551
diff changeset
229 ngx_atomic_int_t old;
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 551
diff changeset
230
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 551
diff changeset
231 old = *value;
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 551
diff changeset
232 *value += add;
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 551
diff changeset
233
e48ebafc6939 nginx-0.3.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 551
diff changeset
234 return old;
435
5cdc4838d4e8 nginx-0.0.11-2004-09-22-20:18:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 433
diff changeset
235 }
266
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 213
diff changeset
236
571
458b6c3fea65 nginx-0.3.7-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 563
diff changeset
237 #define ngx_memory_barrier()
611
3f8a2132b93d nginx-0.3.27-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 571
diff changeset
238 #define ngx_cpu_pause()
571
458b6c3fea65 nginx-0.3.7-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 563
diff changeset
239
266
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 213
diff changeset
240 #endif
212
679f60139863 nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
241
939
782cf4c13b8d use MacOSX atomic(3) and barrier(3) operations
Igor Sysoev <igor@sysoev.ru>
parents: 613
diff changeset
242
611
3f8a2132b93d nginx-0.3.27-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 571
diff changeset
243 void ngx_spinlock(ngx_atomic_t *lock, ngx_atomic_int_t value, ngx_uint_t spin);
373
018569a8f09c nginx-0.0.7-2004-06-30-19:30:41 import
Igor Sysoev <igor@sysoev.ru>
parents: 371
diff changeset
244
371
780e93985b93 nginx-0.0.7-2004-06-28-20:05:02 import
Igor Sysoev <igor@sysoev.ru>
parents: 370
diff changeset
245 #define ngx_trylock(lock) (*(lock) == 0 && ngx_atomic_cmp_set(lock, 0, 1))
780e93985b93 nginx-0.0.7-2004-06-28-20:05:02 import
Igor Sysoev <igor@sysoev.ru>
parents: 370
diff changeset
246 #define ngx_unlock(lock) *(lock) = 0
370
54f76b0b8dca nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents: 302
diff changeset
247
54f76b0b8dca nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents: 302
diff changeset
248
212
679f60139863 nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
249 #endif /* _NGX_ATOMIC_H_INCLUDED_ */