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/*
* Copyright (C) NGINX, Inc.
*/
#ifndef _NXT_VAR_H_INCLUDED_
#define _NXT_VAR_H_INCLUDED_
typedef struct nxt_var_s nxt_var_t;
typedef struct nxt_var_query_s nxt_var_query_t;
typedef nxt_int_t (*nxt_var_handler_t)(nxt_task_t *task,
nxt_str_t *str,
void *ctx, void *data);
typedef int64_t (*nxt_var_field_hash_t)(nxt_mp_t *mp, nxt_str_t *str);
typedef struct {
nxt_str_t name;
nxt_var_handler_t handler;
uint8_t cacheable; /* 1 bit */
} nxt_var_decl_t;
typedef struct {
nxt_str_t *name;
nxt_var_handler_t handler;
void *data;
uint32_t index;
uint8_t cacheable; /* 1 bit */
} nxt_var_ref_t;
typedef struct {
nxt_str_t name;
uint16_t hash;
} nxt_var_field_t;
typedef struct {
nxt_mp_t *pool;
nxt_lvlhsh_t hash;
nxt_str_t *spare;
} nxt_var_cache_t;
nxt_int_t nxt_var_register(nxt_var_decl_t *decl, size_t n);
nxt_int_t nxt_var_index_init(void);
nxt_var_field_t *nxt_var_field_get(nxt_array_t *fields, uint16_t index);
nxt_var_field_t *nxt_var_field_new(nxt_mp_t *mp, nxt_str_t *name,
uint32_t hash);
nxt_var_t *nxt_var_compile(nxt_tstr_state_t *state, nxt_str_t *str);
nxt_int_t nxt_var_test(nxt_tstr_state_t *state, nxt_str_t *str, u_char *error);
nxt_int_t nxt_var_interpreter(nxt_task_t *task, nxt_tstr_state_t *state,
nxt_var_cache_t *cache, nxt_var_t *var, nxt_str_t *str, void *ctx,
nxt_bool_t logging);
nxt_str_t *nxt_var_get(nxt_task_t *task, nxt_var_cache_t *cache,
nxt_str_t *name, void *ctx);
nxt_int_t nxt_http_unknown_var_ref(nxt_tstr_state_t *state, nxt_var_ref_t *ref,
nxt_str_t *name);
#endif /* _NXT_VAR_H_INCLUDED_ */
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