1
2 /*
3 * Copyright (C) Igor Sysoev
4 */
5
6
7 #ifndef _NGX_FILE_H_INCLUDED_
8 #define _NGX_FILE_H_INCLUDED_
9
10
11 #include <ngx_config.h>
12 #include <ngx_core.h>
13
14
15 struct ngx_file_s {
16 ngx_fd_t fd;
17 ngx_str_t name;
18 ngx_file_info_t info;
19
20 off_t offset;
21 off_t sys_offset;
22
23 ngx_log_t *log;
24
25 #if (NGX_HAVE_FILE_AIO)
26 ngx_event_aio_t *aio;
27 #endif
28
29 unsigned valid_info:1;
30 unsigned directio:1;
31 };
32
33
34 #define NGX_MAX_PATH_LEVEL 3
35
36
37 typedef time_t (*ngx_path_manager_pt) (void *data);
38 typedef void (*ngx_path_loader_pt) (void *data);
39
40
41 typedef struct {
42 ngx_str_t name;
43 size_t len;
44 size_t level[3];
45
46 ngx_path_manager_pt manager;
47 ngx_path_loader_pt loader;
48 void *data;
49
50 u_char *conf_file;
51 ngx_uint_t line;
52 } ngx_path_t;
53
54
55 typedef struct {
56 ngx_str_t name;
57 size_t level[3];
58 } ngx_path_init_t;
59
60
61 typedef struct {
62 ngx_file_t file;
63 off_t offset;
64 ngx_path_t *path;
65 ngx_pool_t *pool;
66 char *warn;
67
68 ngx_uint_t access;
69
70 unsigned log_level:8;
71 unsigned persistent:1;
72 unsigned clean:1;
73 } ngx_temp_file_t;
74
75
76 typedef struct {
77 ngx_uint_t access;
78 ngx_uint_t path_access;
79 time_t time;
80 ngx_fd_t fd;
81
82 unsigned create_path:1;
83 unsigned delete_file:1;
84
85 ngx_log_t *log;
86 } ngx_ext_rename_file_t;
87
88
89 typedef struct {
90 off_t size;
91 size_t buf_size;
92
93 ngx_uint_t access;
94 time_t time;
95
96 ngx_log_t *log;
97 } ngx_copy_file_t;
98
99
100 typedef struct ngx_tree_ctx_s ngx_tree_ctx_t;
101
102 typedef ngx_int_t (*ngx_tree_init_handler_pt) (void *ctx, void *prev);
103 typedef ngx_int_t (*ngx_tree_handler_pt) (ngx_tree_ctx_t *ctx, ngx_str_t *name);
104
105 struct ngx_tree_ctx_s {
106 off_t size;
107 ngx_uint_t access;
108 time_t mtime;
109
110 ngx_tree_init_handler_pt init_handler;
111 ngx_tree_handler_pt file_handler;
112 ngx_tree_handler_pt pre_tree_handler;
113 ngx_tree_handler_pt post_tree_handler;
114 ngx_tree_handler_pt spec_handler;
115
116 void *data;
117 size_t alloc;
118
119 ngx_log_t *log;
120 };
121
122
123 ssize_t ngx_write_chain_to_temp_file(ngx_temp_file_t *tf, ngx_chain_t *chain);
124 ngx_int_t ngx_create_temp_file(ngx_file_t *file, ngx_path_t *path,
125 ngx_pool_t *pool, ngx_uint_t persistent, ngx_uint_t clean,
126 ngx_uint_t access);
127 void ngx_create_hashed_filename(ngx_path_t *path, u_char *file, size_t len);
128 ngx_int_t ngx_create_path(ngx_file_t *file, ngx_path_t *path);
129 ngx_err_t ngx_create_full_path(u_char *dir, ngx_uint_t access);
130 ngx_int_t ngx_add_path(ngx_conf_t *cf, ngx_path_t **slot);
131 ngx_int_t ngx_create_pathes(ngx_cycle_t *cycle, ngx_uid_t user);
132 ngx_int_t ngx_ext_rename_file(ngx_str_t *src, ngx_str_t *to,
133 ngx_ext_rename_file_t *ext);
134 ngx_int_t ngx_copy_file(u_char *from, u_char *to, ngx_copy_file_t *cf);
135 ngx_int_t ngx_walk_tree(ngx_tree_ctx_t *ctx, ngx_str_t *tree);
136
137 ngx_atomic_uint_t ngx_next_temp_number(ngx_uint_t collision);
138
139 char *ngx_conf_set_path_slot(ngx_conf_t *cf, ngx_command_t *cmd, void *conf);
140 char *ngx_conf_merge_path_value(ngx_conf_t *cf, ngx_path_t **path,
141 ngx_path_t *prev, ngx_path_init_t *init);
142 char *ngx_conf_set_access_slot(ngx_conf_t *cf, ngx_command_t *cmd, void *conf);
143
144
145 extern ngx_atomic_t *ngx_temp_number;
146 extern ngx_atomic_int_t ngx_random_number;
147
148
149 #endif /* _NGX_FILE_H_INCLUDED_ */
150
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