1 
2 /*
3  * Copyright (C) Igor Sysoev
4  * Copyright (C) Nginx, Inc.
5  */
6 
7 
8 #ifndef _NGX_HTTP_CONFIG_H_INCLUDED_
9 #define _NGX_HTTP_CONFIG_H_INCLUDED_
10 
11 
12 #include <ngx_config.h>
13 #include <ngx_core.h>
14 #include <ngx_http.h>
15 
16 
17 typedef struct {
18     void        **main_conf;
19     void        **srv_conf;
20     void        **loc_conf;
21 } ngx_http_conf_ctx_t;
22 
23 
24 typedef struct {
25     ngx_int_t   (*preconfiguration)(ngx_conf_t *cf);
26     ngx_int_t   (*postconfiguration)(ngx_conf_t *cf);
27 
28     void       *(*create_main_conf)(ngx_conf_t *cf);
29     char       *(*init_main_conf)(ngx_conf_t *cf, void *conf);
30 
31     void       *(*create_srv_conf)(ngx_conf_t *cf);
32     char       *(*merge_srv_conf)(ngx_conf_t *cf, void *prev, void *conf);
33 
34     void       *(*create_loc_conf)(ngx_conf_t *cf);
35     char       *(*merge_loc_conf)(ngx_conf_t *cf, void *prev, void *conf);
36 } ngx_http_module_t;
37 
38 
39 #define NGX_HTTP_MODULE           0x50545448   /* "HTTP" */
40 
41 #define NGX_HTTP_MAIN_CONF        0x02000000
42 #define NGX_HTTP_SRV_CONF         0x04000000
43 #define NGX_HTTP_LOC_CONF         0x08000000
44 #define NGX_HTTP_UPS_CONF         0x10000000
45 #define NGX_HTTP_SIF_CONF         0x20000000
46 #define NGX_HTTP_LIF_CONF         0x40000000
47 #define NGX_HTTP_LMT_CONF         0x80000000
48 
49 
50 #define NGX_HTTP_MAIN_CONF_OFFSET  offsetof(ngx_http_conf_ctx_t, main_conf)
51 #define NGX_HTTP_SRV_CONF_OFFSET   offsetof(ngx_http_conf_ctx_t, srv_conf)
52 #define NGX_HTTP_LOC_CONF_OFFSET   offsetof(ngx_http_conf_ctx_t, loc_conf)
53 
54 
55 #define ngx_http_get_module_main_conf(r, module)                             \
56     (r)->main_conf[module.ctx_index]
57 #define ngx_http_get_module_srv_conf(r, module)  (r)->srv_conf[module.ctx_index]
58 #define ngx_http_get_module_loc_conf(r, module)  (r)->loc_conf[module.ctx_index]
59 
60 
61 #define ngx_http_conf_get_module_main_conf(cf, module)                        \
62     ((ngx_http_conf_ctx_t *) cf->ctx)->main_conf[module.ctx_index]
63 #define ngx_http_conf_get_module_srv_conf(cf, module)                         \
64     ((ngx_http_conf_ctx_t *) cf->ctx)->srv_conf[module.ctx_index]
65 #define ngx_http_conf_get_module_loc_conf(cf, module)                         \
66     ((ngx_http_conf_ctx_t *) cf->ctx)->loc_conf[module.ctx_index]
67 
68 #define ngx_http_cycle_get_module_main_conf(cycle, module)                    \
69     (cycle->conf_ctx[ngx_http_module.index] ?                                 \
70         ((ngx_http_conf_ctx_t *) cycle->conf_ctx[ngx_http_module.index])      \
71             ->main_conf[module.ctx_index]:                                    \
72         NULL)
73 
74 
75 #endif /* _NGX_HTTP_CONFIG_H_INCLUDED_ */
76