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/*
* Copyright (C) Igor Sysoev
*/
#ifndef _NGX_HTTP_VARIABLES_H_INCLUDED_
#define _NGX_HTTP_VARIABLES_H_INCLUDED_
#include <ngx_config.h>
#include <ngx_core.h>
#include <ngx_event.h>
#include <ngx_http.h>
typedef struct {
unsigned len:29;
unsigned valid:1;
unsigned no_cachable:1;
unsigned not_found:1;
u_char *data;
} ngx_http_variable_value_t;
#define ngx_http_variable(v) { sizeof(v) - 1, 1, 0, 0, (u_char *) v }
typedef struct ngx_http_variable_s ngx_http_variable_t;
typedef ngx_int_t (*ngx_http_get_variable_pt) (ngx_http_request_t *r,
ngx_http_variable_value_t *v, uintptr_t data);
#define NGX_HTTP_VAR_CHANGABLE 1
#define NGX_HTTP_VAR_NOCACHABLE 2
#define NGX_HTTP_VAR_INDEXED 4
#define NGX_HTTP_VAR_NOHASH 8
struct ngx_http_variable_s {
ngx_str_t name; /* must be first to build the hash */
ngx_http_get_variable_pt handler;
uintptr_t data;
ngx_uint_t flags;
ngx_uint_t index;
};
ngx_http_variable_t *ngx_http_add_variable(ngx_conf_t *cf, ngx_str_t *name,
ngx_uint_t flags);
ngx_int_t ngx_http_get_variable_index(ngx_conf_t *cf, ngx_str_t *name);
ngx_http_variable_value_t *ngx_http_get_indexed_variable(ngx_http_request_t *r,
ngx_uint_t index);
ngx_http_variable_value_t *ngx_http_get_flushed_variable(ngx_http_request_t *r,
ngx_uint_t index);
ngx_http_variable_value_t *ngx_http_get_variable(ngx_http_request_t *r,
ngx_str_t *name, ngx_uint_t key);
#define ngx_http_clear_variable(r, index) r->variables0[index].text.data = NULL;
ngx_int_t ngx_http_variables_add_core_vars(ngx_conf_t *cf);
ngx_int_t ngx_http_variables_init_vars(ngx_conf_t *cf);
extern ngx_http_variable_value_t ngx_http_variable_null_value;
extern ngx_http_variable_value_t ngx_http_variable_true_value;
#endif /* _NGX_HTTP_VARIABLES_H_INCLUDED_ */
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