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499
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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_VARIABLES_H_INCLUDED_
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8 #define _NGX_HTTP_VARIABLES_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 #include <ngx_event.h>
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14 #include <ngx_http.h>
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15
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16
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573
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17 typedef struct {
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18 unsigned len:29;
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499
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19
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573
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20 unsigned valid:1;
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21 unsigned no_cachable:1;
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22 unsigned not_found:1;
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23
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24 u_char *data;
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509
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25 } ngx_http_variable_value_t;
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26
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573
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27 #define ngx_http_variable(v) { sizeof(v) - 1, 1, 0, 0, (u_char *) v }
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28
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29 typedef struct ngx_http_variable_s ngx_http_variable_t;
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30
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637
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31 typedef void (*ngx_http_set_variable_pt) (ngx_http_request_t *r,
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32 ngx_http_variable_value_t *v, uintptr_t data);
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573
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33 typedef ngx_int_t (*ngx_http_get_variable_pt) (ngx_http_request_t *r,
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34 ngx_http_variable_value_t *v, uintptr_t data);
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35
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36
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509
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37 #define NGX_HTTP_VAR_CHANGABLE 1
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38 #define NGX_HTTP_VAR_NOCACHABLE 2
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519
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39 #define NGX_HTTP_VAR_INDEXED 4
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583
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40 #define NGX_HTTP_VAR_NOHASH 8
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509
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41
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42
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43 struct ngx_http_variable_s {
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573
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44 ngx_str_t name; /* must be first to build the hash */
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637
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45 ngx_http_set_variable_pt set_handler;
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46 ngx_http_get_variable_pt get_handler;
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573
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47 uintptr_t data;
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48 ngx_uint_t flags;
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49 ngx_uint_t index;
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499
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50 };
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51
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52
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53 ngx_http_variable_t *ngx_http_add_variable(ngx_conf_t *cf, ngx_str_t *name,
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509
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54 ngx_uint_t flags);
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55 ngx_int_t ngx_http_get_variable_index(ngx_conf_t *cf, ngx_str_t *name);
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499
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56 ngx_http_variable_value_t *ngx_http_get_indexed_variable(ngx_http_request_t *r,
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57 ngx_uint_t index);
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573
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58 ngx_http_variable_value_t *ngx_http_get_flushed_variable(ngx_http_request_t *r,
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59 ngx_uint_t index);
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60
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61 ngx_http_variable_value_t *ngx_http_get_variable(ngx_http_request_t *r,
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635
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62 ngx_str_t *name, ngx_uint_t key, ngx_uint_t nowarn);
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509
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63
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573
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64 #define ngx_http_clear_variable(r, index) r->variables0[index].text.data = NULL;
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65
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66
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509
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67 ngx_int_t ngx_http_variables_add_core_vars(ngx_conf_t *cf);
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68 ngx_int_t ngx_http_variables_init_vars(ngx_conf_t *cf);
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499
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69
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70
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577
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71 extern ngx_http_variable_value_t ngx_http_variable_null_value;
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72 extern ngx_http_variable_value_t ngx_http_variable_true_value;
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73
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74
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499
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75 #endif /* _NGX_HTTP_VARIABLES_H_INCLUDED_ */
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