Annotation of embedaddon/nginx/src/core/ngx_hash.h, revision 1.1.1.1
1.1 misho 1:
2: /*
3: * Copyright (C) Igor Sysoev
4: * Copyright (C) Nginx, Inc.
5: */
6:
7:
8: #ifndef _NGX_HASH_H_INCLUDED_
9: #define _NGX_HASH_H_INCLUDED_
10:
11:
12: #include <ngx_config.h>
13: #include <ngx_core.h>
14:
15:
16: typedef struct {
17: void *value;
18: u_short len;
19: u_char name[1];
20: } ngx_hash_elt_t;
21:
22:
23: typedef struct {
24: ngx_hash_elt_t **buckets;
25: ngx_uint_t size;
26: } ngx_hash_t;
27:
28:
29: typedef struct {
30: ngx_hash_t hash;
31: void *value;
32: } ngx_hash_wildcard_t;
33:
34:
35: typedef struct {
36: ngx_str_t key;
37: ngx_uint_t key_hash;
38: void *value;
39: } ngx_hash_key_t;
40:
41:
42: typedef ngx_uint_t (*ngx_hash_key_pt) (u_char *data, size_t len);
43:
44:
45: typedef struct {
46: ngx_hash_t hash;
47: ngx_hash_wildcard_t *wc_head;
48: ngx_hash_wildcard_t *wc_tail;
49: } ngx_hash_combined_t;
50:
51:
52: typedef struct {
53: ngx_hash_t *hash;
54: ngx_hash_key_pt key;
55:
56: ngx_uint_t max_size;
57: ngx_uint_t bucket_size;
58:
59: char *name;
60: ngx_pool_t *pool;
61: ngx_pool_t *temp_pool;
62: } ngx_hash_init_t;
63:
64:
65: #define NGX_HASH_SMALL 1
66: #define NGX_HASH_LARGE 2
67:
68: #define NGX_HASH_LARGE_ASIZE 16384
69: #define NGX_HASH_LARGE_HSIZE 10007
70:
71: #define NGX_HASH_WILDCARD_KEY 1
72: #define NGX_HASH_READONLY_KEY 2
73:
74:
75: typedef struct {
76: ngx_uint_t hsize;
77:
78: ngx_pool_t *pool;
79: ngx_pool_t *temp_pool;
80:
81: ngx_array_t keys;
82: ngx_array_t *keys_hash;
83:
84: ngx_array_t dns_wc_head;
85: ngx_array_t *dns_wc_head_hash;
86:
87: ngx_array_t dns_wc_tail;
88: ngx_array_t *dns_wc_tail_hash;
89: } ngx_hash_keys_arrays_t;
90:
91:
92: typedef struct {
93: ngx_uint_t hash;
94: ngx_str_t key;
95: ngx_str_t value;
96: u_char *lowcase_key;
97: } ngx_table_elt_t;
98:
99:
100: void *ngx_hash_find(ngx_hash_t *hash, ngx_uint_t key, u_char *name, size_t len);
101: void *ngx_hash_find_wc_head(ngx_hash_wildcard_t *hwc, u_char *name, size_t len);
102: void *ngx_hash_find_wc_tail(ngx_hash_wildcard_t *hwc, u_char *name, size_t len);
103: void *ngx_hash_find_combined(ngx_hash_combined_t *hash, ngx_uint_t key,
104: u_char *name, size_t len);
105:
106: ngx_int_t ngx_hash_init(ngx_hash_init_t *hinit, ngx_hash_key_t *names,
107: ngx_uint_t nelts);
108: ngx_int_t ngx_hash_wildcard_init(ngx_hash_init_t *hinit, ngx_hash_key_t *names,
109: ngx_uint_t nelts);
110:
111: #define ngx_hash(key, c) ((ngx_uint_t) key * 31 + c)
112: ngx_uint_t ngx_hash_key(u_char *data, size_t len);
113: ngx_uint_t ngx_hash_key_lc(u_char *data, size_t len);
114: ngx_uint_t ngx_hash_strlow(u_char *dst, u_char *src, size_t n);
115:
116:
117: ngx_int_t ngx_hash_keys_array_init(ngx_hash_keys_arrays_t *ha, ngx_uint_t type);
118: ngx_int_t ngx_hash_add_key(ngx_hash_keys_arrays_t *ha, ngx_str_t *key,
119: void *value, ngx_uint_t flags);
120:
121:
122: #endif /* _NGX_HASH_H_INCLUDED_ */
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>