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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_HTTP_CONF_FILE_H_INCLUDED_
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8 #define _NGX_HTTP_CONF_FILE_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 /*
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16 * AAAA number of agruments
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17 * FF command flags
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18 * TT command type, i.e. HTTP "location" or "server" command
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19 */
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20
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21 #define NGX_CONF_NOARGS 0x00000001
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22 #define NGX_CONF_TAKE1 0x00000002
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23 #define NGX_CONF_TAKE2 0x00000004
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24 #define NGX_CONF_TAKE3 0x00000008
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25 #define NGX_CONF_TAKE4 0x00000010
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26 #define NGX_CONF_TAKE5 0x00000020
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27 #define NGX_CONF_TAKE6 0x00000040
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28 #define NGX_CONF_TAKE7 0x00000080
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29
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30 #define NGX_CONF_TAKE12 (NGX_CONF_TAKE1|NGX_CONF_TAKE2)
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31 #define NGX_CONF_TAKE13 (NGX_CONF_TAKE1|NGX_CONF_TAKE3)
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32
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33 #define NGX_CONF_TAKE23 (NGX_CONF_TAKE2|NGX_CONF_TAKE3)
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34
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35 #define NGX_CONF_TAKE1234 (NGX_CONF_TAKE1|NGX_CONF_TAKE2|NGX_CONF_TAKE3 \
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36 |NGX_CONF_TAKE4)
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37
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38 #define NGX_CONF_ARGS_NUMBER 0x000000ff
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39 #define NGX_CONF_BLOCK 0x00000100
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40 #define NGX_CONF_FLAG 0x00000200
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41 #define NGX_CONF_ANY 0x00000400
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42 #define NGX_CONF_1MORE 0x00000800
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43 #define NGX_CONF_2MORE 0x00001000
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44
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45 #define NGX_DIRECT_CONF 0x00010000
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46
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47 #define NGX_MAIN_CONF 0x01000000
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48 #define NGX_ANY_CONF 0x0F000000
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49
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50
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51
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52 #define NGX_CONF_UNSET -1
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53 #define NGX_CONF_UNSET_UINT (ngx_uint_t) -1
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54 #define NGX_CONF_UNSET_PTR (void *) -1
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55 #define NGX_CONF_UNSET_SIZE (size_t) -1
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56 #define NGX_CONF_UNSET_MSEC (ngx_msec_t) -1
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57
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58
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59 #define NGX_CONF_OK NULL
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2
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60 #define NGX_CONF_ERROR (char *) -1
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0
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61
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10
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62 #define NGX_CONF_BLOCK_START 1
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63 #define NGX_CONF_BLOCK_DONE 2
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64 #define NGX_CONF_FILE_DONE 3
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0
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65
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66 #define NGX_MODULE 0, 0
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67
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68 #define NGX_CORE_MODULE 0x45524F43 /* "CORE" */
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69 #define NGX_CONF_MODULE 0x464E4F43 /* "CONF" */
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70
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71
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72 #define NGX_MAX_CONF_ERRSTR 256
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73
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74
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75 struct ngx_command_s {
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76 ngx_str_t name;
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77 int type;
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78 char *(*set)(ngx_conf_t *cf, ngx_command_t *cmd, void *conf);
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79 int conf;
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80 int offset;
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81 void *post;
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82 };
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83
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84 #define ngx_null_command { ngx_null_string, 0, NULL, 0, 0, NULL }
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85
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86
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87 struct ngx_open_file_s {
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88 ngx_fd_t fd;
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89 ngx_str_t name;
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90 #if 0
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91 /* e.g. append mode, error_log */
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92 int flags;
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93 /* e.g. reopen db file */
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94 int (*handler)(void *data, ngx_open_file_t *file);
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95 void *data;
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96 #endif
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97 };
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98
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99
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100 struct ngx_module_s {
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101 ngx_uint_t ctx_index;
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102 ngx_uint_t index;
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103 void *ctx;
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104 ngx_command_t *commands;
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105 ngx_uint_t type;
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106 ngx_int_t (*init_module)(ngx_cycle_t *cycle);
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107 ngx_int_t (*init_process)(ngx_cycle_t *cycle);
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108 #if 0
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109 ngx_int_t (*init_thread)(ngx_cycle_t *cycle);
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110 #endif
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111 };
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112
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113
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114 typedef struct {
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115 ngx_str_t name;
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116 void *(*create_conf)(ngx_cycle_t *cycle);
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117 char *(*init_conf)(ngx_cycle_t *cycle, void *conf);
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118 } ngx_core_module_t;
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119
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120
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121 typedef struct {
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122 ngx_file_t file;
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123 ngx_buf_t *buffer;
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124 ngx_uint_t line;
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125 } ngx_conf_file_t;
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126
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127
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128 typedef char *(*ngx_conf_handler_pt)(ngx_conf_t *cf,
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129 ngx_command_t *dummy, void *conf);
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130
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131
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132 struct ngx_conf_s {
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133 char *name;
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134 ngx_array_t *args;
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135
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136 ngx_cycle_t *cycle;
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137 ngx_pool_t *pool;
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138 ngx_conf_file_t *conf_file;
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139 ngx_log_t *log;
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140
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141 void *ctx;
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142 ngx_uint_t module_type;
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143 ngx_uint_t cmd_type;
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144
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145 ngx_conf_handler_pt handler;
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146 char *handler_conf;
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147 };
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148
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149
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150 typedef char *(*ngx_conf_post_handler_pt) (ngx_conf_t *cf,
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151 void *data, void *conf);
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152
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153 typedef struct {
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154 ngx_conf_post_handler_pt post_handler;
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155 } ngx_conf_post_t;
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156
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157
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158 typedef struct {
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159 ngx_conf_post_handler_pt post_handler;
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160 int low;
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161 int high;
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162 } ngx_conf_num_bounds_t;
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163
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164
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165 typedef struct {
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166 ngx_str_t name;
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167 ngx_uint_t value;
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168 } ngx_conf_enum_t;
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169
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170
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171 #define NGX_CONF_BITMASK_SET 1
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172
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173 typedef struct {
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174 ngx_str_t name;
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175 ngx_uint_t mask;
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176 } ngx_conf_bitmask_t;
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177
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178
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179 char *ngx_conf_check_num_bounds(ngx_conf_t *cf, void *post, void *data);
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180
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181
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182 #define ngx_get_conf(conf_ctx, module) conf_ctx[module.index]
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183
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184
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185
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186 #define ngx_conf_init_value(conf, default) \
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187 if (conf == NGX_CONF_UNSET) { \
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188 conf = default; \
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189 }
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190
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191 #define ngx_conf_init_ptr_value(conf, default) \
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192 if (conf == NGX_CONF_UNSET_PTR) { \
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193 conf = default; \
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194 }
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195
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196 #define ngx_conf_init_unsigned_value(conf, default) \
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197 if (conf == (unsigned) NGX_CONF_UNSET) { \
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198 conf = default; \
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199 }
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200
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201 #define ngx_conf_init_size_value(conf, default) \
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202 if (conf == NGX_CONF_UNSET_SIZE) { \
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203 conf = default; \
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204 }
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205
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206 #define ngx_conf_init_msec_value(conf, default) \
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207 if (conf == NGX_CONF_UNSET_MSEC) { \
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208 conf = default; \
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209 }
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210
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211 #define ngx_conf_merge_value(conf, prev, default) \
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212 if (conf == NGX_CONF_UNSET) { \
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213 conf = (prev == NGX_CONF_UNSET) ? default : prev; \
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214 }
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215
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216 #define ngx_conf_merge_ptr_value(conf, prev, default) \
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217 if (conf == NULL) { \
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218 conf = (prev == NULL) ? default : prev; \
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219 }
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220
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221 #define ngx_conf_merge_unsigned_value(conf, prev, default) \
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222 if (conf == NGX_CONF_UNSET_UINT) { \
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223 conf = (prev == NGX_CONF_UNSET_UINT) ? default : prev; \
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224 }
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225
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226 #define ngx_conf_merge_msec_value(conf, prev, default) \
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227 if (conf == NGX_CONF_UNSET_MSEC) { \
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228 conf = (prev == NGX_CONF_UNSET_MSEC) ? default : prev; \
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229 }
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230
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231 #define ngx_conf_merge_sec_value(conf, prev, default) \
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232 if (conf == NGX_CONF_UNSET) { \
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233 conf = (prev == NGX_CONF_UNSET) ? default : prev; \
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234 }
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235
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236 #define ngx_conf_merge_size_value(conf, prev, default) \
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237 if (conf == NGX_CONF_UNSET_SIZE) { \
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238 conf = (prev == NGX_CONF_UNSET_SIZE) ? default : prev; \
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239 }
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240
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241 #define ngx_conf_merge_str_value(conf, prev, default) \
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242 if (conf.len == 0) { \
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243 if (prev.len) { \
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244 conf.len = prev.len; \
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245 conf.data = prev.data; \
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246 } else { \
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247 conf.len = sizeof(default) - 1; \
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248 conf.data = (u_char *) default; \
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249 } \
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250 }
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251
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252 #define ngx_conf_merge_bufs_value(conf, prev, default_num, default_size) \
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253 if (conf.num == 0) { \
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254 if (prev.num) { \
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255 conf.num = prev.num; \
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256 conf.size = prev.size; \
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257 } else { \
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258 conf.num = default_num; \
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259 conf.size = default_size; \
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260 } \
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261 }
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262
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263 #define ngx_conf_merge_bitmask_value(conf, prev, default) \
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264 if (conf == 0) { \
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265 conf = (prev == 0) ? default : prev; \
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266 }
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267
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268
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269 #define addressof(addr) ((int) &addr)
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270
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271
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272 char *ngx_conf_parse(ngx_conf_t *cf, ngx_str_t *filename);
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273
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274
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275 ngx_int_t ngx_conf_full_name(ngx_cycle_t *cycle, ngx_str_t *name);
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276 ngx_open_file_t *ngx_conf_open_file(ngx_cycle_t *cycle, ngx_str_t *name);
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277 void ngx_conf_log_error(ngx_uint_t level, ngx_conf_t *cf, ngx_err_t err,
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278 char *fmt, ...);
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279
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280
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281 char *ngx_conf_set_flag_slot(ngx_conf_t *cf, ngx_command_t *cmd, void *conf);
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282 char *ngx_conf_set_str_slot(ngx_conf_t *cf, ngx_command_t *cmd, void *conf);
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283 char *ngx_conf_set_num_slot(ngx_conf_t *cf, ngx_command_t *cmd, void *conf);
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284 char *ngx_conf_set_size_slot(ngx_conf_t *cf, ngx_command_t *cmd, void *conf);
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285 char *ngx_conf_set_msec_slot(ngx_conf_t *cf, ngx_command_t *cmd, void *conf);
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286 char *ngx_conf_set_sec_slot(ngx_conf_t *cf, ngx_command_t *cmd, void *conf);
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287 char *ngx_conf_set_bufs_slot(ngx_conf_t *cf, ngx_command_t *cmd, void *conf);
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288 char *ngx_conf_set_enum_slot(ngx_conf_t *cf, ngx_command_t *cmd, void *conf);
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289 char *ngx_conf_set_bitmask_slot(ngx_conf_t *cf, ngx_command_t *cmd, void *conf);
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290
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291
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292 extern ngx_uint_t ngx_max_module;
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293 extern ngx_module_t *ngx_modules[];
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294
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295
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296 #endif /* _NGX_HTTP_CONF_FILE_H_INCLUDED_ */
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