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Variables refactoring.

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This commit is to reimplement the variables with an unknown field
such as $header_{name} to make the parsing more generic,
it's a preparation for supporting response header variables.
This commit is contained in:
Zhidao HONG
2023-06-19 16:29:22 +08:00
parent 18d3637e4b
commit c61ccec7b4
6 changed files with 212 additions and 188 deletions
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28
src/nxt_var.h
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@@ -13,23 +13,29 @@ 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, uint16_t field);
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;
nxt_var_field_hash_t field_hash;
uint32_t index;
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;
uint32_t index;
} nxt_var_field_t;
@@ -44,14 +50,20 @@ 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_str_t *str, nxt_mp_t *mp, nxt_array_t *fields);
nxt_int_t nxt_var_test(nxt_str_t *str, nxt_array_t *fields, u_char *error);
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_var_cache_t *cache,
nxt_var_t *var, nxt_str_t *str, void *ctx, nxt_bool_t logging);
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_ */