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annotate src/core/ngx_file.h @ 6734:0c572ed91b36

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Modules compatibility: compatibility with NGX_HAVE_FILE_AIO. With this change it is now possible to load modules compiled without the "--with-file-aio" configure option into nginx binary compiled with it, and vice versa, assuming both use the "--with-compat" option.
author Maxim Dounin <mdounin@mdounin.ru>
date Mon, 10 Oct 2016 18:44:17 +0300
parents adc2414856b1
children
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2 /*
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3 * Copyright (C) Igor Sysoev
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4 * Copyright (C) Nginx, Inc.
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5 */
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8 #ifndef _NGX_FILE_H_INCLUDED_
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9 #define _NGX_FILE_H_INCLUDED_
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12 #include <ngx_config.h>
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13 #include <ngx_core.h>
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16 struct ngx_file_s {
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17 ngx_fd_t fd;
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18 ngx_str_t name;
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19 ngx_file_info_t info;
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20
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21 off_t offset;
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22 off_t sys_offset;
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23
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24 ngx_log_t *log;
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25
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26 #if (NGX_THREADS || NGX_COMPAT)
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27 ngx_int_t (*thread_handler)(ngx_thread_task_t *task,
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28 ngx_file_t *file);
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29 void *thread_ctx;
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30 ngx_thread_task_t *thread_task;
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31 #endif
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32
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33 #if (NGX_HAVE_FILE_AIO || NGX_COMPAT)
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34 ngx_event_aio_t *aio;
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35 #endif
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36
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37 unsigned valid_info:1;
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38 unsigned directio:1;
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39 };
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42 #define NGX_MAX_PATH_LEVEL 3
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44
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45 typedef ngx_msec_t (*ngx_path_manager_pt) (void *data);
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46 typedef ngx_msec_t (*ngx_path_purger_pt) (void *data);
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47 typedef void (*ngx_path_loader_pt) (void *data);
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49
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50 typedef struct {
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51 ngx_str_t name;
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52 size_t len;
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53 size_t level[NGX_MAX_PATH_LEVEL];
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54
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55 ngx_path_manager_pt manager;
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56 ngx_path_purger_pt purger;
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57 ngx_path_loader_pt loader;
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58 void *data;
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59
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60 u_char *conf_file;
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61 ngx_uint_t line;
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62 } ngx_path_t;
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65 typedef struct {
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66 ngx_str_t name;
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67 size_t level[NGX_MAX_PATH_LEVEL];
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68 } ngx_path_init_t;
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71 typedef struct {
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72 ngx_file_t file;
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73 off_t offset;
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74 ngx_path_t *path;
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75 ngx_pool_t *pool;
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76 char *warn;
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78 ngx_uint_t access;
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79
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80 unsigned log_level:8;
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81 unsigned persistent:1;
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82 unsigned clean:1;
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83 unsigned thread_write:1;
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84 } ngx_temp_file_t;
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86
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87 typedef struct {
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88 ngx_uint_t access;
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89 ngx_uint_t path_access;
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90 time_t time;
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91 ngx_fd_t fd;
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92
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93 unsigned create_path:1;
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94 unsigned delete_file:1;
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95
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96 ngx_log_t *log;
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97 } ngx_ext_rename_file_t;
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98
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99
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100 typedef struct {
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101 off_t size;
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102 size_t buf_size;
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103
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104 ngx_uint_t access;
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105 time_t time;
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106
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107 ngx_log_t *log;
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108 } ngx_copy_file_t;
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109
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110
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111 typedef struct ngx_tree_ctx_s ngx_tree_ctx_t;
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112
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113 typedef ngx_int_t (*ngx_tree_init_handler_pt) (void *ctx, void *prev);
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114 typedef ngx_int_t (*ngx_tree_handler_pt) (ngx_tree_ctx_t *ctx, ngx_str_t *name);
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115
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116 struct ngx_tree_ctx_s {
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117 off_t size;
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118 off_t fs_size;
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119 ngx_uint_t access;
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120 time_t mtime;
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121
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122 ngx_tree_init_handler_pt init_handler;
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123 ngx_tree_handler_pt file_handler;
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124 ngx_tree_handler_pt pre_tree_handler;
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125 ngx_tree_handler_pt post_tree_handler;
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126 ngx_tree_handler_pt spec_handler;
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127
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128 void *data;
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129 size_t alloc;
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130
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131 ngx_log_t *log;
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132 };
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133
8c3d62474df1 ngx_walk_tree()
Igor Sysoev <igor@sysoev.ru>
parents: 669
diff changeset
134
5316
12dd27b74117 Fixed memory leaks in the root and auth_basic_user_file directives.
Valentin Bartenev <vbart@nginx.com>
parents: 4870
diff changeset
135 ngx_int_t ngx_get_full_name(ngx_pool_t *pool, ngx_str_t *prefix,
12dd27b74117 Fixed memory leaks in the root and auth_basic_user_file directives.
Valentin Bartenev <vbart@nginx.com>
parents: 4870
diff changeset
136 ngx_str_t *name);
12dd27b74117 Fixed memory leaks in the root and auth_basic_user_file directives.
Valentin Bartenev <vbart@nginx.com>
parents: 4870
diff changeset
137
467
bbd6b0b4a2b1 nginx-0.1.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 457
diff changeset
138 ssize_t ngx_write_chain_to_temp_file(ngx_temp_file_t *tf, ngx_chain_t *chain);
bbd6b0b4a2b1 nginx-0.1.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 457
diff changeset
139 ngx_int_t ngx_create_temp_file(ngx_file_t *file, ngx_path_t *path,
1075
4d203f76b757 undo "client_body_in_file_only any"
Igor Sysoev <igor@sysoev.ru>
parents: 1058
diff changeset
140 ngx_pool_t *pool, ngx_uint_t persistent, ngx_uint_t clean,
4d203f76b757 undo "client_body_in_file_only any"
Igor Sysoev <igor@sysoev.ru>
parents: 1058
diff changeset
141 ngx_uint_t access);
1748
91d381e4e691 ngx_create_hashed_filename() does not need ngx_file_t
Igor Sysoev <igor@sysoev.ru>
parents: 1695
diff changeset
142 void ngx_create_hashed_filename(ngx_path_t *path, u_char *file, size_t len);
467
bbd6b0b4a2b1 nginx-0.1.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 457
diff changeset
143 ngx_int_t ngx_create_path(ngx_file_t *file, ngx_path_t *path);
669
562806624c4a nginx-0.3.56-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 637
diff changeset
144 ngx_err_t ngx_create_full_path(u_char *dir, ngx_uint_t access);
479
c52408583801 nginx-0.1.14-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
145 ngx_int_t ngx_add_path(ngx_conf_t *cf, ngx_path_t **slot);
4870
8a9b7b4e9f2d Correct plural form for "path" in the whole source base.
Andrey Belov <defan@nginx.com>
parents: 4412
diff changeset
146 ngx_int_t ngx_create_paths(ngx_cycle_t *cycle, ngx_uid_t user);
1827
cb9d4278b476 add declaration missed in previous commit
Igor Sysoev <igor@sysoev.ru>
parents: 1748
diff changeset
147 ngx_int_t ngx_ext_rename_file(ngx_str_t *src, ngx_str_t *to,
cb9d4278b476 add declaration missed in previous commit
Igor Sysoev <igor@sysoev.ru>
parents: 1748
diff changeset
148 ngx_ext_rename_file_t *ext);
3024
8101d9101ed8 allow cross device temporary files atomic copying:
Igor Sysoev <igor@sysoev.ru>
parents: 3018
diff changeset
149 ngx_int_t ngx_copy_file(u_char *from, u_char *to, ngx_copy_file_t *cf);
956
8c3d62474df1 ngx_walk_tree()
Igor Sysoev <igor@sysoev.ru>
parents: 669
diff changeset
150 ngx_int_t ngx_walk_tree(ngx_tree_ctx_t *ctx, ngx_str_t *tree);
74
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
Igor Sysoev <igor@sysoev.ru>
parents: 59
diff changeset
151
495
fc9909c369b2 nginx-0.1.22-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 493
diff changeset
152 ngx_atomic_uint_t ngx_next_temp_number(ngx_uint_t collision);
74
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
Igor Sysoev <igor@sysoev.ru>
parents: 59
diff changeset
153
155
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents: 100
diff changeset
154 char *ngx_conf_set_path_slot(ngx_conf_t *cf, ngx_command_t *cmd, void *conf);
2592
3a8a53c0c42f a prelimiary proxy cache support
Igor Sysoev <igor@sysoev.ru>
parents: 2394
diff changeset
155 char *ngx_conf_merge_path_value(ngx_conf_t *cf, ngx_path_t **path,
3a8a53c0c42f a prelimiary proxy cache support
Igor Sysoev <igor@sysoev.ru>
parents: 2394
diff changeset
156 ngx_path_t *prev, ngx_path_init_t *init);
1291
13a4ce6e7f1e proxy_store and fastcgi_store
Igor Sysoev <igor@sysoev.ru>
parents: 1075
diff changeset
157 char *ngx_conf_set_access_slot(ngx_conf_t *cf, ngx_command_t *cmd, void *conf);
155
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents: 100
diff changeset
158
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents: 100
diff changeset
159
3035
f9d97311c652 *) share temporary number between workers
Igor Sysoev <igor@sysoev.ru>
parents: 3024
diff changeset
160 extern ngx_atomic_t *ngx_temp_number;
f9d97311c652 *) share temporary number between workers
Igor Sysoev <igor@sysoev.ru>
parents: 3024
diff changeset
161 extern ngx_atomic_int_t ngx_random_number;
f9d97311c652 *) share temporary number between workers
Igor Sysoev <igor@sysoev.ru>
parents: 3024
diff changeset
162
f9d97311c652 *) share temporary number between workers
Igor Sysoev <igor@sysoev.ru>
parents: 3024
diff changeset
163
59
e8cdc2989cee nginx-0.0.1-2003-02-06-20:21:13 import
Igor Sysoev <igor@sysoev.ru>
parents: 57
diff changeset
164 #endif /* _NGX_FILE_H_INCLUDED_ */