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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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30 #define NGX_LOG_DEBUG_IMAP 0x200
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31
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32 /*
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33 * do not forget to update debug_levels[] in src/core/ngx_log.c
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34 * after the adding a new debug level
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35 */
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36
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37 #define NGX_LOG_DEBUG_FIRST NGX_LOG_DEBUG_CORE
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38 #define NGX_LOG_DEBUG_LAST NGX_LOG_DEBUG_IMAP
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39 #define NGX_LOG_DEBUG_CONNECTION 0x80000000
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40 #define NGX_LOG_DEBUG_ALL 0x7ffffff0
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41
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42
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43 typedef size_t (*ngx_log_handler_pt) (void *ctx, char *buf, size_t len);
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44
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45
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46 struct ngx_log_s {
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47 ngx_uint_t log_level;
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48 ngx_open_file_t *file;
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49 void *data;
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50 ngx_log_handler_pt handler;
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51 };
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52
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53 #define MAX_ERROR_STR 2048
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54
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55
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56 /*********************************/
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57
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4
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58 #if (NGX_HAVE_GCC_VARIADIC_MACROS)
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0
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59
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4
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60 #define NGX_HAVE_VARIADIC_MACROS 1
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0
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61
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62 #define ngx_log_error(level, log, args...) \
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63 if (log->log_level >= level) ngx_log_error_core(level, log, args)
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64
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65 void ngx_log_error_core(ngx_uint_t level, ngx_log_t *log, ngx_err_t err,
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66 const char *fmt, ...);
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67
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68 /*********************************/
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69
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4
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70 #elif (NGX_HAVE_C99_VARIADIC_MACROS)
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0
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71
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4
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72 #define NGX_HAVE_VARIADIC_MACROS 1
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0
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73
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74 #define ngx_log_error(level, log, ...) \
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75 if (log->log_level >= level) ngx_log_error_core(level, log, __VA_ARGS__)
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76
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77 void ngx_log_error_core(ngx_uint_t level, ngx_log_t *log, ngx_err_t err,
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78 const char *fmt, ...);
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79
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80 /*********************************/
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81
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82 #else /* NO VARIADIC MACROS */
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83
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4
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84 #define NGX_HAVE_VARIADIC_MACROS 0
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0
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85
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86 void ngx_log_error(ngx_uint_t level, ngx_log_t *log, ngx_err_t err,
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87 const char *fmt, ...);
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88 void ngx_log_error_core(ngx_uint_t level, ngx_log_t *log, ngx_err_t err,
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89 const char *fmt, va_list args);
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90 void ngx_log_debug_core(ngx_log_t *log, ngx_err_t err, const char *fmt, ...);
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91 void ngx_assert_core(ngx_log_t *log, const char *fmt, ...);
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92
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93
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94 #endif /* VARIADIC MACROS */
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95
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96
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97 /*********************************/
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98
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99 #if (NGX_DEBUG)
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100
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4
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101 #if (NGX_HAVE_VARIADIC_MACROS)
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0
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102
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103 #define ngx_log_debug0(level, log, err, fmt) \
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104 if (log->log_level & level) \
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105 ngx_log_error_core(NGX_LOG_DEBUG, log, err, fmt)
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106
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107 #define ngx_log_debug1(level, log, err, fmt, arg1) \
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108 if (log->log_level & level) \
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109 ngx_log_error_core(NGX_LOG_DEBUG, log, err, fmt, arg1)
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110
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111 #define ngx_log_debug2(level, log, err, fmt, arg1, arg2) \
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112 if (log->log_level & level) \
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113 ngx_log_error_core(NGX_LOG_DEBUG, log, err, fmt, arg1, arg2)
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114
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115 #define ngx_log_debug3(level, log, err, fmt, arg1, arg2, arg3) \
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116 if (log->log_level & level) \
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117 ngx_log_error_core(NGX_LOG_DEBUG, log, err, fmt, arg1, arg2, arg3)
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118
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119 #define ngx_log_debug4(level, log, err, fmt, arg1, arg2, arg3, arg4) \
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120 if (log->log_level & level) \
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121 ngx_log_error_core(NGX_LOG_DEBUG, log, err, fmt, arg1, arg2, arg3, arg4)
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122
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123 #define ngx_log_debug5(level, log, err, fmt, arg1, arg2, arg3, arg4, arg5) \
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124 if (log->log_level & level) \
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125 ngx_log_error_core(NGX_LOG_DEBUG, log, err, fmt, \
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126 arg1, arg2, arg3, arg4, arg5)
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127
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128 #define ngx_log_debug6(level, log, err, fmt, \
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129 arg1, arg2, arg3, arg4, arg5, arg6) \
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130 if (log->log_level & level) \
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131 ngx_log_error_core(NGX_LOG_DEBUG, log, err, fmt, \
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132 arg1, arg2, arg3, arg4, arg5, arg6)
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133
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134 #define ngx_log_debug7(level, log, err, fmt, \
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135 arg1, arg2, arg3, arg4, arg5, arg6, arg7) \
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136 if (log->log_level & level) \
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137 ngx_log_error_core(NGX_LOG_DEBUG, log, err, fmt, \
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138 arg1, arg2, arg3, arg4, arg5, arg6, arg7)
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139
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140 #else /* NO VARIADIC MACROS */
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141
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142 #define ngx_log_debug0(level, log, err, fmt) \
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143 if (log->log_level & level) \
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144 ngx_log_debug_core(log, err, fmt)
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145
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146 #define ngx_log_debug1(level, log, err, fmt, arg1) \
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147 if (log->log_level & level) \
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148 ngx_log_debug_core(log, err, fmt, arg1)
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149
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150 #define ngx_log_debug2(level, log, err, fmt, arg1, arg2) \
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151 if (log->log_level & level) \
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152 ngx_log_debug_core(log, err, fmt, arg1, arg2)
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153
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154 #define ngx_log_debug3(level, log, err, fmt, arg1, arg2, arg3) \
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155 if (log->log_level & level) \
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156 ngx_log_debug_core(log, err, fmt, arg1, arg2, arg3)
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157
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158 #define ngx_log_debug4(level, log, err, fmt, arg1, arg2, arg3, arg4) \
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159 if (log->log_level & level) \
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160 ngx_log_debug_core(log, err, fmt, arg1, arg2, arg3, arg4)
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161
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162 #define ngx_log_debug5(level, log, err, fmt, arg1, arg2, arg3, arg4, arg5) \
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163 if (log->log_level & level) \
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164 ngx_log_debug_core(log, err, fmt, arg1, arg2, arg3, arg4, arg5)
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165
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166 #define ngx_log_debug6(level, log, err, fmt, \
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167 arg1, arg2, arg3, arg4, arg5, arg6) \
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168 if (log->log_level & level) \
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169 ngx_log_debug_core(log, err, fmt, arg1, arg2, arg3, arg4, arg5, arg6)
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170
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171 #define ngx_log_debug7(level, log, err, fmt, \
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172 arg1, arg2, arg3, arg4, arg5, arg6, arg7) \
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173 if (log->log_level & level) \
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174 ngx_log_debug_core(log, err, fmt, \
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175 arg1, arg2, arg3, arg4, arg5, arg6, arg7)
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176
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177 #endif
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178
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179 #else /* NO NGX_DEBUG */
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180
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181 #define ngx_log_debug0(level, log, err, fmt)
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182 #define ngx_log_debug1(level, log, err, fmt, arg1)
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183 #define ngx_log_debug2(level, log, err, fmt, arg1, arg2)
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184 #define ngx_log_debug3(level, log, err, fmt, arg1, arg2, arg3)
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185 #define ngx_log_debug4(level, log, err, fmt, arg1, arg2, arg3, arg4)
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186 #define ngx_log_debug5(level, log, err, fmt, arg1, arg2, arg3, arg4, arg5)
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187 #define ngx_log_debug6(level, log, err, fmt, arg1, arg2, arg3, arg4, arg5, arg6)
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188 #define ngx_log_debug7(level, log, err, fmt, arg1, arg2, arg3, arg4, arg5, \
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189 arg6, arg7)
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190
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191 #endif
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192
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193 /*********************************/
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194
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195 #define ngx_log_alloc_log(pool, log) ngx_palloc(pool, log, sizeof(ngx_log_t))
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196 #define ngx_log_copy_log(new, old) ngx_memcpy(new, old, sizeof(ngx_log_t))
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197
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198 ngx_log_t *ngx_log_init_stderr();
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199 #if 0
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200 ngx_int_t ngx_log_init_error_log();
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201 #endif
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202 ngx_log_t *ngx_log_create_errlog(ngx_cycle_t *cycle, ngx_array_t *args);
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203 char *ngx_set_error_log_levels(ngx_conf_t *cf, ngx_log_t *log);
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204
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205
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206
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207 extern ngx_module_t ngx_errlog_module;
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208
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209
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210 #endif /* _NGX_LOG_H_INCLUDED_ */
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