Mercurial > hg > nginx
annotate src/core/ngx_log.h @ 4845:d13ab0094fc9
release-1.3.6 tag
author | Maxim Dounin <mdounin@mdounin.ru> |
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date | Wed, 12 Sep 2012 10:41:56 +0000 |
parents | d620f497c50f |
children | 7ecaa9e4bf1b |
rev | line source |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
4412 | 4 * Copyright (C) Nginx, Inc. |
441
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5 */ |
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8 #ifndef _NGX_LOG_H_INCLUDED_ |
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9 #define _NGX_LOG_H_INCLUDED_ |
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12 #include <ngx_config.h> |
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13 #include <ngx_core.h> |
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16 #define NGX_LOG_STDERR 0 |
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17 #define NGX_LOG_EMERG 1 |
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18 #define NGX_LOG_ALERT 2 |
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19 #define NGX_LOG_CRIT 3 |
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20 #define NGX_LOG_ERR 4 |
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21 #define NGX_LOG_WARN 5 |
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22 #define NGX_LOG_NOTICE 6 |
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23 #define NGX_LOG_INFO 7 |
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24 #define NGX_LOG_DEBUG 8 |
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26 #define NGX_LOG_DEBUG_CORE 0x010 |
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27 #define NGX_LOG_DEBUG_ALLOC 0x020 |
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28 #define NGX_LOG_DEBUG_MUTEX 0x040 |
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29 #define NGX_LOG_DEBUG_EVENT 0x080 |
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30 #define NGX_LOG_DEBUG_HTTP 0x100 |
1136 | 31 #define NGX_LOG_DEBUG_MAIL 0x200 |
645 | 32 #define NGX_LOG_DEBUG_MYSQL 0x400 |
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34 /* |
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35 * do not forget to update debug_levels[] in src/core/ngx_log.c |
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36 * after the adding a new debug level |
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37 */ |
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39 #define NGX_LOG_DEBUG_FIRST NGX_LOG_DEBUG_CORE |
1136 | 40 #define NGX_LOG_DEBUG_LAST NGX_LOG_DEBUG_MYSQL |
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41 #define NGX_LOG_DEBUG_CONNECTION 0x80000000 |
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42 #define NGX_LOG_DEBUG_ALL 0x7ffffff0 |
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483 | 45 typedef u_char *(*ngx_log_handler_pt) (ngx_log_t *log, u_char *buf, size_t len); |
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48 struct ngx_log_s { |
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49 ngx_uint_t log_level; |
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50 ngx_open_file_t *file; |
483 | 51 |
495 | 52 ngx_atomic_uint_t connection; |
483 | 53 |
54 ngx_log_handler_pt handler; | |
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55 void *data; |
483 | 56 |
57 /* | |
58 * we declare "action" as "char *" because the actions are usually | |
59 * the static strings and in the "u_char *" case we have to override | |
60 * their types all the time | |
61 */ | |
62 | |
63 char *action; | |
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64 }; |
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461 | 66 |
67 #define NGX_MAX_ERROR_STR 2048 | |
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68 |
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70 /*********************************/ |
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71 |
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72 #if (NGX_HAVE_C99_VARIADIC_MACROS) |
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73 |
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74 #define NGX_HAVE_VARIADIC_MACROS 1 |
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75 |
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76 #define ngx_log_error(level, log, ...) \ |
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77 if ((log)->log_level >= level) ngx_log_error_core(level, log, __VA_ARGS__) |
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78 |
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79 void ngx_log_error_core(ngx_uint_t level, ngx_log_t *log, ngx_err_t err, |
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80 const char *fmt, ...); |
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81 |
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82 #define ngx_log_debug(level, log, ...) \ |
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83 if ((log)->log_level & level) \ |
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84 ngx_log_error_core(NGX_LOG_DEBUG, log, __VA_ARGS__) |
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85 |
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86 /*********************************/ |
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87 |
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88 #elif (NGX_HAVE_GCC_VARIADIC_MACROS) |
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455 | 90 #define NGX_HAVE_VARIADIC_MACROS 1 |
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483 | 92 #define ngx_log_error(level, log, args...) \ |
543 | 93 if ((log)->log_level >= level) ngx_log_error_core(level, log, args) |
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95 void ngx_log_error_core(ngx_uint_t level, ngx_log_t *log, ngx_err_t err, |
499 | 96 const char *fmt, ...); |
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483 | 98 #define ngx_log_debug(level, log, args...) \ |
543 | 99 if ((log)->log_level & level) \ |
483 | 100 ngx_log_error_core(NGX_LOG_DEBUG, log, args) |
101 | |
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102 /*********************************/ |
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104 #else /* NO VARIADIC MACROS */ |
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455 | 106 #define NGX_HAVE_VARIADIC_MACROS 0 |
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107 |
503 | 108 void ngx_cdecl ngx_log_error(ngx_uint_t level, ngx_log_t *log, ngx_err_t err, |
499 | 109 const char *fmt, ...); |
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110 void ngx_log_error_core(ngx_uint_t level, ngx_log_t *log, ngx_err_t err, |
499 | 111 const char *fmt, va_list args); |
503 | 112 void ngx_cdecl ngx_log_debug_core(ngx_log_t *log, ngx_err_t err, |
113 const char *fmt, ...); | |
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114 |
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115 |
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116 #endif /* VARIADIC MACROS */ |
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117 |
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119 /*********************************/ |
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121 #if (NGX_DEBUG) |
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455 | 123 #if (NGX_HAVE_VARIADIC_MACROS) |
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124 |
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125 #define ngx_log_debug0(level, log, err, fmt) \ |
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126 ngx_log_debug(level, log, err, fmt) |
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127 |
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128 #define ngx_log_debug1(level, log, err, fmt, arg1) \ |
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129 ngx_log_debug(level, log, err, fmt, arg1) |
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130 |
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131 #define ngx_log_debug2(level, log, err, fmt, arg1, arg2) \ |
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132 ngx_log_debug(level, log, err, fmt, arg1, arg2) |
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133 |
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134 #define ngx_log_debug3(level, log, err, fmt, arg1, arg2, arg3) \ |
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135 ngx_log_debug(level, log, err, fmt, arg1, arg2, arg3) |
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136 |
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137 #define ngx_log_debug4(level, log, err, fmt, arg1, arg2, arg3, arg4) \ |
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138 ngx_log_debug(level, log, err, fmt, arg1, arg2, arg3, arg4) |
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139 |
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140 #define ngx_log_debug5(level, log, err, fmt, arg1, arg2, arg3, arg4, arg5) \ |
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141 ngx_log_debug(level, log, err, fmt, arg1, arg2, arg3, arg4, arg5) |
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142 |
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143 #define ngx_log_debug6(level, log, err, fmt, \ |
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144 arg1, arg2, arg3, arg4, arg5, arg6) \ |
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145 ngx_log_debug(level, log, err, fmt, \ |
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146 arg1, arg2, arg3, arg4, arg5, arg6) |
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147 |
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148 #define ngx_log_debug7(level, log, err, fmt, \ |
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149 arg1, arg2, arg3, arg4, arg5, arg6, arg7) \ |
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150 ngx_log_debug(level, log, err, fmt, \ |
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151 arg1, arg2, arg3, arg4, arg5, arg6, arg7) |
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152 |
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153 #define ngx_log_debug8(level, log, err, fmt, \ |
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154 arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8) \ |
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155 ngx_log_debug(level, log, err, fmt, \ |
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156 arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8) |
389
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157 |
515 | 158 |
201
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159 #else /* NO VARIADIC MACROS */ |
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160 |
483 | 161 #define ngx_log_debug0(level, log, err, fmt) \ |
543 | 162 if ((log)->log_level & level) \ |
201
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163 ngx_log_debug_core(log, err, fmt) |
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164 |
483 | 165 #define ngx_log_debug1(level, log, err, fmt, arg1) \ |
543 | 166 if ((log)->log_level & level) \ |
201
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167 ngx_log_debug_core(log, err, fmt, arg1) |
210
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168 |
483 | 169 #define ngx_log_debug2(level, log, err, fmt, arg1, arg2) \ |
543 | 170 if ((log)->log_level & level) \ |
210
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171 ngx_log_debug_core(log, err, fmt, arg1, arg2) |
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172 |
483 | 173 #define ngx_log_debug3(level, log, err, fmt, arg1, arg2, arg3) \ |
543 | 174 if ((log)->log_level & level) \ |
213
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175 ngx_log_debug_core(log, err, fmt, arg1, arg2, arg3) |
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176 |
483 | 177 #define ngx_log_debug4(level, log, err, fmt, arg1, arg2, arg3, arg4) \ |
543 | 178 if ((log)->log_level & level) \ |
214
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179 ngx_log_debug_core(log, err, fmt, arg1, arg2, arg3, arg4) |
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180 |
483 | 181 #define ngx_log_debug5(level, log, err, fmt, arg1, arg2, arg3, arg4, arg5) \ |
543 | 182 if ((log)->log_level & level) \ |
214
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183 ngx_log_debug_core(log, err, fmt, arg1, arg2, arg3, arg4, arg5) |
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184 |
483 | 185 #define ngx_log_debug6(level, log, err, fmt, \ |
186 arg1, arg2, arg3, arg4, arg5, arg6) \ | |
543 | 187 if ((log)->log_level & level) \ |
210
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188 ngx_log_debug_core(log, err, fmt, arg1, arg2, arg3, arg4, arg5, arg6) |
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189 |
483 | 190 #define ngx_log_debug7(level, log, err, fmt, \ |
191 arg1, arg2, arg3, arg4, arg5, arg6, arg7) \ | |
543 | 192 if ((log)->log_level & level) \ |
483 | 193 ngx_log_debug_core(log, err, fmt, \ |
389
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194 arg1, arg2, arg3, arg4, arg5, arg6, arg7) |
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195 |
483 | 196 #define ngx_log_debug8(level, log, err, fmt, \ |
197 arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8) \ | |
543 | 198 if ((log)->log_level & level) \ |
483 | 199 ngx_log_debug_core(log, err, fmt, \ |
200 arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8) | |
201 | |
201
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202 #endif |
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203 |
277
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204 #else /* NO NGX_DEBUG */ |
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205 |
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206 #define ngx_log_debug0(level, log, err, fmt) |
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207 #define ngx_log_debug1(level, log, err, fmt, arg1) |
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208 #define ngx_log_debug2(level, log, err, fmt, arg1, arg2) |
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209 #define ngx_log_debug3(level, log, err, fmt, arg1, arg2, arg3) |
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210 #define ngx_log_debug4(level, log, err, fmt, arg1, arg2, arg3, arg4) |
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211 #define ngx_log_debug5(level, log, err, fmt, arg1, arg2, arg3, arg4, arg5) |
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212 #define ngx_log_debug6(level, log, err, fmt, arg1, arg2, arg3, arg4, arg5, arg6) |
426
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213 #define ngx_log_debug7(level, log, err, fmt, arg1, arg2, arg3, arg4, arg5, \ |
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214 arg6, arg7) |
483 | 215 #define ngx_log_debug8(level, log, err, fmt, arg1, arg2, arg3, arg4, arg5, \ |
216 arg6, arg7, arg8) | |
277
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217 |
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218 #endif |
201
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219 |
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220 /*********************************/ |
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221 |
2758 | 222 ngx_log_t *ngx_log_init(u_char *prefix); |
2785
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223 ngx_log_t *ngx_log_create(ngx_cycle_t *cycle, ngx_str_t *name); |
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224 char *ngx_log_set_levels(ngx_conf_t *cf, ngx_log_t *log); |
2752
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225 void ngx_cdecl ngx_log_abort(ngx_err_t err, const char *fmt, ...); |
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226 void ngx_cdecl ngx_log_stderr(ngx_err_t err, const char *fmt, ...); |
2765 | 227 u_char *ngx_log_errno(u_char *buf, u_char *last, ngx_err_t err); |
234
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228 |
109
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229 |
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230 /* |
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231 * ngx_write_stderr() cannot be implemented as macro, since |
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232 * MSVC does not allow to use #ifdef inside macro parameters. |
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233 * |
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234 * ngx_write_fd() is used instead of ngx_write_console(), since |
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235 * CharToOemBuff() inside ngx_write_console() cannot be used with |
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236 * read only buffer as destination and CharToOemBuff() is not needed |
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237 * for ngx_write_stderr() anyway. |
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238 */ |
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239 static ngx_inline void |
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240 ngx_write_stderr(char *text) |
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241 { |
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242 (void) ngx_write_fd(ngx_stderr, text, strlen(text)); |
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243 } |
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244 |
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245 |
100
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246 extern ngx_module_t ngx_errlog_module; |
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247 extern ngx_uint_t ngx_use_stderr; |
100
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248 |
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249 |
0
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250 #endif /* _NGX_LOG_H_INCLUDED_ */ |