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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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5
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6
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7 #ifndef _NGX_LOG_H_INCLUDED_
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8 #define _NGX_LOG_H_INCLUDED_
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9
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10
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11 #include <ngx_config.h>
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12 #include <ngx_core.h>
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13
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14
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15 #define NGX_LOG_STDERR 0
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16 #define NGX_LOG_EMERG 1
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17 #define NGX_LOG_ALERT 2
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18 #define NGX_LOG_CRIT 3
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19 #define NGX_LOG_ERR 4
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20 #define NGX_LOG_WARN 5
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21 #define NGX_LOG_NOTICE 6
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22 #define NGX_LOG_INFO 7
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23 #define NGX_LOG_DEBUG 8
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24
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25 #define NGX_LOG_DEBUG_CORE 0x010
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26 #define NGX_LOG_DEBUG_ALLOC 0x020
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27 #define NGX_LOG_DEBUG_MUTEX 0x040
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28 #define NGX_LOG_DEBUG_EVENT 0x080
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29 #define NGX_LOG_DEBUG_HTTP 0x100
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290
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30 #define NGX_LOG_DEBUG_MAIL 0x200
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194
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31 #define NGX_LOG_DEBUG_MYSQL 0x400
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0
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32
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33 /*
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34 * do not forget to update debug_levels[] in src/core/ngx_log.c
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35 * after the adding a new debug level
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36 */
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37
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38 #define NGX_LOG_DEBUG_FIRST NGX_LOG_DEBUG_CORE
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290
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39 #define NGX_LOG_DEBUG_LAST NGX_LOG_DEBUG_MYSQL
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0
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40 #define NGX_LOG_DEBUG_CONNECTION 0x80000000
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41 #define NGX_LOG_DEBUG_ALL 0x7ffffff0
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42
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43
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32
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44 typedef u_char *(*ngx_log_handler_pt) (ngx_log_t *log, u_char *buf, size_t len);
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0
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45
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46
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47 struct ngx_log_s {
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48 ngx_uint_t log_level;
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49 ngx_open_file_t *file;
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32
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50
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44
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51 ngx_atomic_uint_t connection;
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32
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52
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53 ngx_log_handler_pt handler;
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0
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54 void *data;
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32
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55
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56 /*
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57 * we declare "action" as "char *" because the actions are usually
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58 * the static strings and in the "u_char *" case we have to override
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59 * their types all the time
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60 */
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61
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62 char *action;
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0
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63 };
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64
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10
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65
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66 #define NGX_MAX_ERROR_STR 2048
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0
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67
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68
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69 /*********************************/
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70
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4
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71 #if (NGX_HAVE_GCC_VARIADIC_MACROS)
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0
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72
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4
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73 #define NGX_HAVE_VARIADIC_MACROS 1
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0
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74
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32
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75 #define ngx_log_error(level, log, args...) \
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92
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76 if ((log)->log_level >= level) ngx_log_error_core(level, log, args)
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0
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77
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78 void ngx_log_error_core(ngx_uint_t level, ngx_log_t *log, ngx_err_t err,
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48
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79 const char *fmt, ...);
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0
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80
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32
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81 #define ngx_log_debug(level, log, args...) \
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92
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82 if ((log)->log_level & level) \
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32
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83 ngx_log_error_core(NGX_LOG_DEBUG, log, args)
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84
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0
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85 /*********************************/
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86
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4
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87 #elif (NGX_HAVE_C99_VARIADIC_MACROS)
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0
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88
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4
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89 #define NGX_HAVE_VARIADIC_MACROS 1
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0
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90
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32
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91 #define ngx_log_error(level, log, ...) \
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92
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92 if ((log)->log_level >= level) ngx_log_error_core(level, log, __VA_ARGS__)
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0
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93
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94 void ngx_log_error_core(ngx_uint_t level, ngx_log_t *log, ngx_err_t err,
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48
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95 const char *fmt, ...);
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0
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96
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97 #define ngx_log_debug(level, log, ...) \
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92
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98 if ((log)->log_level & level) \
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32
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99 ngx_log_error_core(NGX_LOG_DEBUG, log, __VA_ARGS__)
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100
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0
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101 /*********************************/
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102
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103 #else /* NO VARIADIC MACROS */
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104
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4
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105 #define NGX_HAVE_VARIADIC_MACROS 0
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0
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106
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52
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107 void ngx_cdecl ngx_log_error(ngx_uint_t level, ngx_log_t *log, ngx_err_t err,
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48
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108 const char *fmt, ...);
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0
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109 void ngx_log_error_core(ngx_uint_t level, ngx_log_t *log, ngx_err_t err,
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48
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110 const char *fmt, va_list args);
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52
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111 void ngx_cdecl ngx_log_debug_core(ngx_log_t *log, ngx_err_t err,
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112 const char *fmt, ...);
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0
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113
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114
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115 #endif /* VARIADIC MACROS */
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116
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117
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118 /*********************************/
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119
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120 #if (NGX_DEBUG)
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121
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4
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122 #if (NGX_HAVE_VARIADIC_MACROS)
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0
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123
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32
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124 #define ngx_log_debug0 ngx_log_debug
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125 #define ngx_log_debug1 ngx_log_debug
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126 #define ngx_log_debug2 ngx_log_debug
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127 #define ngx_log_debug3 ngx_log_debug
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128 #define ngx_log_debug4 ngx_log_debug
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129 #define ngx_log_debug5 ngx_log_debug
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130 #define ngx_log_debug6 ngx_log_debug
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131 #define ngx_log_debug7 ngx_log_debug
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132 #define ngx_log_debug8 ngx_log_debug
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0
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133
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64
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134
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135 #else /* NO VARIADIC MACROS */
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136
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32
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137 #define ngx_log_debug0(level, log, err, fmt) \
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92
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138 if ((log)->log_level & level) \
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0
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139 ngx_log_debug_core(log, err, fmt)
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140
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32
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141 #define ngx_log_debug1(level, log, err, fmt, arg1) \
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92
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142 if ((log)->log_level & level) \
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0
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143 ngx_log_debug_core(log, err, fmt, arg1)
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144
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32
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145 #define ngx_log_debug2(level, log, err, fmt, arg1, arg2) \
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92
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146 if ((log)->log_level & level) \
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0
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147 ngx_log_debug_core(log, err, fmt, arg1, arg2)
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148
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32
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149 #define ngx_log_debug3(level, log, err, fmt, arg1, arg2, arg3) \
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92
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150 if ((log)->log_level & level) \
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0
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151 ngx_log_debug_core(log, err, fmt, arg1, arg2, arg3)
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152
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32
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153 #define ngx_log_debug4(level, log, err, fmt, arg1, arg2, arg3, arg4) \
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92
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154 if ((log)->log_level & level) \
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0
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155 ngx_log_debug_core(log, err, fmt, arg1, arg2, arg3, arg4)
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156
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32
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157 #define ngx_log_debug5(level, log, err, fmt, arg1, arg2, arg3, arg4, arg5) \
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92
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158 if ((log)->log_level & level) \
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0
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159 ngx_log_debug_core(log, err, fmt, arg1, arg2, arg3, arg4, arg5)
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160
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32
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161 #define ngx_log_debug6(level, log, err, fmt, \
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162 arg1, arg2, arg3, arg4, arg5, arg6) \
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92
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163 if ((log)->log_level & level) \
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0
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164 ngx_log_debug_core(log, err, fmt, arg1, arg2, arg3, arg4, arg5, arg6)
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165
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32
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166 #define ngx_log_debug7(level, log, err, fmt, \
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167 arg1, arg2, arg3, arg4, arg5, arg6, arg7) \
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92
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168 if ((log)->log_level & level) \
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32
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169 ngx_log_debug_core(log, err, fmt, \
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0
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170 arg1, arg2, arg3, arg4, arg5, arg6, arg7)
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171
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32
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172 #define ngx_log_debug8(level, log, err, fmt, \
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173 arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8) \
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92
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174 if ((log)->log_level & level) \
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175 ngx_log_debug_core(log, err, fmt, \
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176 arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8)
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177
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178 #endif
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179
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180 #else /* NO NGX_DEBUG */
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181
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182 #define ngx_log_debug0(level, log, err, fmt)
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183 #define ngx_log_debug1(level, log, err, fmt, arg1)
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184 #define ngx_log_debug2(level, log, err, fmt, arg1, arg2)
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185 #define ngx_log_debug3(level, log, err, fmt, arg1, arg2, arg3)
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186 #define ngx_log_debug4(level, log, err, fmt, arg1, arg2, arg3, arg4)
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187 #define ngx_log_debug5(level, log, err, fmt, arg1, arg2, arg3, arg4, arg5)
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188 #define ngx_log_debug6(level, log, err, fmt, arg1, arg2, arg3, arg4, arg5, arg6)
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189 #define ngx_log_debug7(level, log, err, fmt, arg1, arg2, arg3, arg4, arg5, \
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190 arg6, arg7)
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32
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191 #define ngx_log_debug8(level, log, err, fmt, arg1, arg2, arg3, arg4, arg5, \
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192 arg6, arg7, arg8)
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193
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194 #endif
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195
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196 /*********************************/
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197
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482
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198 ngx_log_t *ngx_log_init(u_char *prefix);
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199 ngx_log_t *ngx_log_create_errlog(ngx_cycle_t *cycle, ngx_str_t *name);
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200 char *ngx_set_error_log_levels(ngx_conf_t *cf, ngx_log_t *log);
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482
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201 void ngx_cdecl ngx_log_abort(ngx_err_t err, const char *fmt, ...);
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202 void ngx_cdecl ngx_log_stderr(ngx_err_t err, const char *fmt, ...);
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203
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204
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205 extern ngx_module_t ngx_errlog_module;
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482
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206 extern ngx_uint_t ngx_use_stderr;
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207
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208
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209 #endif /* _NGX_LOG_H_INCLUDED_ */
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