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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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584
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71 #if (NGX_HAVE_C99_VARIADIC_MACROS)
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72
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73 #define NGX_HAVE_VARIADIC_MACROS 1
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74
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75 #define ngx_log_error(level, log, ...) \
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76 if ((log)->log_level >= level) ngx_log_error_core(level, log, __VA_ARGS__)
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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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79 const char *fmt, ...);
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80
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81 #define ngx_log_debug(level, log, ...) \
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82 if ((log)->log_level & level) \
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83 ngx_log_error_core(NGX_LOG_DEBUG, log, __VA_ARGS__)
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84
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85 /*********************************/
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86
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87 #elif (NGX_HAVE_GCC_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, args...) \
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92
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92 if ((log)->log_level >= level) ngx_log_error_core(level, log, 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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32
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97 #define ngx_log_debug(level, log, args...) \
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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, 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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658
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124 #define ngx_log_debug0(level, log, err, fmt) \
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125 ngx_log_debug(level, log, err, fmt)
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126
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127 #define ngx_log_debug1(level, log, err, fmt, arg1) \
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128 ngx_log_debug(level, log, err, fmt, arg1)
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129
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130 #define ngx_log_debug2(level, log, err, fmt, arg1, arg2) \
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131 ngx_log_debug(level, log, err, fmt, arg1, arg2)
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132
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133 #define ngx_log_debug3(level, log, err, fmt, arg1, arg2, arg3) \
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134 ngx_log_debug(level, log, err, fmt, arg1, arg2, arg3)
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135
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136 #define ngx_log_debug4(level, log, err, fmt, arg1, arg2, arg3, arg4) \
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137 ngx_log_debug(level, log, err, fmt, arg1, arg2, arg3, arg4)
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138
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139 #define ngx_log_debug5(level, log, err, fmt, arg1, arg2, arg3, arg4, arg5) \
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140 ngx_log_debug(level, log, err, fmt, arg1, arg2, arg3, arg4, arg5)
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141
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142 #define ngx_log_debug6(level, log, err, fmt, \
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143 arg1, arg2, arg3, arg4, arg5, arg6) \
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144 ngx_log_debug(level, log, err, fmt, \
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145 arg1, arg2, arg3, arg4, arg5, arg6)
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146
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147 #define ngx_log_debug7(level, log, err, fmt, \
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148 arg1, arg2, arg3, arg4, arg5, arg6, arg7) \
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149 ngx_log_debug(level, log, err, fmt, \
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150 arg1, arg2, arg3, arg4, arg5, arg6, arg7)
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151
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152 #define ngx_log_debug8(level, log, err, fmt, \
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153 arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8) \
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154 ngx_log_debug(level, log, err, fmt, \
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155 arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8)
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0
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156
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64
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157
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0
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158 #else /* NO VARIADIC MACROS */
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159
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32
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160 #define ngx_log_debug0(level, log, err, fmt) \
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92
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161 if ((log)->log_level & level) \
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0
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162 ngx_log_debug_core(log, err, fmt)
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163
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32
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164 #define ngx_log_debug1(level, log, err, fmt, arg1) \
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92
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165 if ((log)->log_level & level) \
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0
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166 ngx_log_debug_core(log, err, fmt, arg1)
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167
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32
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168 #define ngx_log_debug2(level, log, err, fmt, arg1, arg2) \
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92
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169 if ((log)->log_level & level) \
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0
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170 ngx_log_debug_core(log, err, fmt, arg1, arg2)
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171
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32
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172 #define ngx_log_debug3(level, log, err, fmt, arg1, arg2, arg3) \
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92
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173 if ((log)->log_level & level) \
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174 ngx_log_debug_core(log, err, fmt, arg1, arg2, arg3)
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175
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32
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176 #define ngx_log_debug4(level, log, err, fmt, arg1, arg2, arg3, arg4) \
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92
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177 if ((log)->log_level & level) \
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178 ngx_log_debug_core(log, err, fmt, arg1, arg2, arg3, arg4)
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179
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180 #define ngx_log_debug5(level, log, err, fmt, arg1, arg2, arg3, arg4, arg5) \
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92
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181 if ((log)->log_level & level) \
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182 ngx_log_debug_core(log, err, fmt, arg1, arg2, arg3, arg4, arg5)
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183
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184 #define ngx_log_debug6(level, log, err, fmt, \
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185 arg1, arg2, arg3, arg4, arg5, arg6) \
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92
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186 if ((log)->log_level & level) \
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187 ngx_log_debug_core(log, err, fmt, arg1, arg2, arg3, arg4, arg5, arg6)
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188
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32
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189 #define ngx_log_debug7(level, log, err, fmt, \
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190 arg1, arg2, arg3, arg4, arg5, arg6, arg7) \
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92
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191 if ((log)->log_level & level) \
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192 ngx_log_debug_core(log, err, fmt, \
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193 arg1, arg2, arg3, arg4, arg5, arg6, arg7)
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194
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195 #define ngx_log_debug8(level, log, err, fmt, \
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196 arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8) \
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92
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197 if ((log)->log_level & level) \
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198 ngx_log_debug_core(log, err, fmt, \
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199 arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8)
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200
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201 #endif
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202
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203 #else /* NO NGX_DEBUG */
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204
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205 #define ngx_log_debug0(level, log, err, fmt)
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206 #define ngx_log_debug1(level, log, err, fmt, arg1)
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207 #define ngx_log_debug2(level, log, err, fmt, arg1, arg2)
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208 #define ngx_log_debug3(level, log, err, fmt, arg1, arg2, arg3)
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209 #define ngx_log_debug4(level, log, err, fmt, arg1, arg2, arg3, arg4)
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210 #define ngx_log_debug5(level, log, err, fmt, arg1, arg2, arg3, arg4, arg5)
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211 #define ngx_log_debug6(level, log, err, fmt, arg1, arg2, arg3, arg4, arg5, arg6)
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212 #define ngx_log_debug7(level, log, err, fmt, arg1, arg2, arg3, arg4, arg5, \
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213 arg6, arg7)
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32
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214 #define ngx_log_debug8(level, log, err, fmt, arg1, arg2, arg3, arg4, arg5, \
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215 arg6, arg7, arg8)
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216
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217 #endif
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218
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219 /*********************************/
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220
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482
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221 ngx_log_t *ngx_log_init(u_char *prefix);
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484
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222 ngx_log_t *ngx_log_create(ngx_cycle_t *cycle, ngx_str_t *name);
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223 char *ngx_log_set_levels(ngx_conf_t *cf, ngx_log_t *log);
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482
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224 void ngx_cdecl ngx_log_abort(ngx_err_t err, const char *fmt, ...);
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225 void ngx_cdecl ngx_log_stderr(ngx_err_t err, const char *fmt, ...);
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484
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226 u_char *ngx_log_errno(u_char *buf, u_char *last, ngx_err_t err);
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0
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227
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228
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648
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229 /*
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230 * ngx_write_stderr() cannot be implemented as macro, since
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231 * MSVC does not allow to use #ifdef inside macro parameters.
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232 *
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233 * ngx_write_fd() is used instead of ngx_write_console(), since
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234 * CharToOemBuff() inside ngx_write_console() cannot be used with
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235 * read only buffer as destination and CharToOemBuff() is not needed
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236 * for ngx_write_stderr() anyway.
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237 */
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238 static ngx_inline void
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239 ngx_write_stderr(char *text)
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240 {
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241 (void) ngx_write_fd(ngx_stderr, text, strlen(text));
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242 }
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243
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244
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0
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245 extern ngx_module_t ngx_errlog_module;
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482
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246 extern ngx_uint_t ngx_use_stderr;
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0
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247
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248
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249 #endif /* _NGX_LOG_H_INCLUDED_ */
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