xref: /unit/src/nxt_fastcgi_source.h (revision 65:10688b89aa16)
1 
2 /*
3  * Copyright (C) Igor Sysoev
4  * Copyright (C) NGINX, Inc.
5  */
6 
7 #ifndef _NXT_FASTCGI_SOURCE_H_INCLUDED_
8 #define _NXT_FASTCGI_SOURCE_H_INCLUDED_
9 
10 
11 #define NXT_FASTCGI_BEGIN_REQUEST        1
12 #define NXT_FASTCGI_ABORT_REQUEST        2
13 #define NXT_FASTCGI_END_REQUEST          3
14 #define NXT_FASTCGI_PARAMS               4
15 #define NXT_FASTCGI_STDIN                5
16 #define NXT_FASTCGI_STDOUT               6
17 #define NXT_FASTCGI_STDERR               7
18 #define NXT_FASTCGI_DATA                 8
19 
20 
21 typedef struct nxt_fastcgi_parse_s       nxt_fastcgi_parse_t;
22 
23 struct nxt_fastcgi_parse_s {
24     u_char                               *pos;
25 
26     uint16_t                             length;         /* 16 bits */
27     uint8_t                              padding;
28     uint8_t                              type;
29 
30     uint8_t                              state;
31     uint8_t                              fastcgi_error;  /* 1 bit */
32     uint8_t                              error;          /* 1 bit */
33     uint8_t                              done;           /* 1 bit */
34 
35     /* FastCGI stdout and stderr buffer chains. */
36     nxt_buf_t                            *out[2];
37 
38     nxt_buf_t                            *(*last_buf)(nxt_fastcgi_parse_t *fp);
39     void                                 *data;
40     nxt_mp_t                             *mem_pool;
41 };
42 
43 
44 typedef struct {
45     nxt_fastcgi_parse_t                  parse;
46     nxt_source_hook_t                    next;
47 } nxt_fastcgi_source_record_t;
48 
49 
50 typedef struct {
51     nxt_str_t                            name;
52     nxt_str_t                            value;
53     uintptr_t                            data[3];
54 } nxt_fastcgi_source_request_t;
55 
56 
57 typedef struct nxt_fastcgi_source_s  nxt_fastcgi_source_t;
58 typedef nxt_int_t (*nxt_fastcgi_source_request_create_t)(
59     nxt_fastcgi_source_t *fs);
60 
61 
62 struct nxt_fastcgi_source_s {
63     nxt_source_hook_t                    query;
64     nxt_source_hook_t                    *next;
65 
66     nxt_upstream_source_t                *upstream;
67 
68     nxt_fastcgi_source_request_create_t  request_create;
69 
70     nxt_upstream_header_in_t             header_in;
71 
72     nxt_buf_t                            *rest;
73 
74     uint32_t                             state;  /* 2 bits */
75 
76     nxt_fastcgi_source_record_t          record;
77 
78     union {
79         nxt_fastcgi_source_request_t     request;
80     } u;
81 };
82 
83 
84 NXT_EXPORT void nxt_fastcgi_source_handler(nxt_task_t *task,
85     nxt_upstream_source_t *us,
86     nxt_fastcgi_source_request_create_t request_create);
87 NXT_EXPORT nxt_int_t nxt_fastcgi_source_hash_create(nxt_mp_t *mp,
88     nxt_lvlhsh_t *lh);
89 void nxt_fastcgi_record_parse(nxt_task_t *task, nxt_fastcgi_parse_t *fp,
90     nxt_buf_t *in);
91 
92 
93 #endif /* _NXT_FASTCGI_SOURCE_H_INCLUDED_ */
94