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332
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1
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2 /*
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3 * Copyright (C) Igor Sysoev
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660
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4 * Copyright (C) Nginx, Inc.
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332
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5 */
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6
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7
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8 #include <ngx_config.h>
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9 #include <ngx_core.h>
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10
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11
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12 #ifndef _NGX_OPEN_FILE_CACHE_H_INCLUDED_
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13 #define _NGX_OPEN_FILE_CACHE_H_INCLUDED_
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14
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15
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416
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16 #define NGX_OPEN_FILE_DIRECTIO_OFF NGX_MAX_OFF_T_VALUE
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17
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18
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332
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19 typedef struct {
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20 ngx_fd_t fd;
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21 ngx_file_uniq_t uniq;
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22 time_t mtime;
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23 off_t size;
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622
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24 off_t fs_size;
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390
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25 off_t directio;
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532
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26 size_t read_ahead;
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482
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27
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332
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28 ngx_err_t err;
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482
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29 char *failed;
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332
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30
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358
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31 time_t valid;
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32
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33 ngx_uint_t min_uses;
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332
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34
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662
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35 #if (NGX_HAVE_OPENAT)
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664
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36 size_t disable_symlinks_from;
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662
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37 unsigned disable_symlinks:2;
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38 #endif
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39
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332
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40 unsigned test_dir:1;
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482
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41 unsigned test_only:1;
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384
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42 unsigned log:1;
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332
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43 unsigned errors:1;
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44 unsigned events:1;
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45
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46 unsigned is_dir:1;
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47 unsigned is_file:1;
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48 unsigned is_link:1;
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49 unsigned is_exec:1;
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406
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50 unsigned is_directio:1;
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332
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51 } ngx_open_file_info_t;
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52
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53
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54 typedef struct ngx_cached_open_file_s ngx_cached_open_file_t;
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55
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56 struct ngx_cached_open_file_s {
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57 ngx_rbtree_node_t node;
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358
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58 ngx_queue_t queue;
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332
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59
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60 u_char *name;
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61 time_t created;
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62 time_t accessed;
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63
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64 ngx_fd_t fd;
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65 ngx_file_uniq_t uniq;
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66 time_t mtime;
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67 off_t size;
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68 ngx_err_t err;
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69
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358
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70 uint32_t uses;
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71
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662
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72 #if (NGX_HAVE_OPENAT)
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664
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73 size_t disable_symlinks_from;
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662
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74 unsigned disable_symlinks:2;
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75 #endif
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76
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332
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77 unsigned count:24;
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78 unsigned close:1;
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358
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79 unsigned use_event:1;
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332
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80
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81 unsigned is_dir:1;
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82 unsigned is_file:1;
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83 unsigned is_link:1;
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84 unsigned is_exec:1;
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410
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85 unsigned is_directio:1;
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332
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86
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87 ngx_event_t *event;
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88 };
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89
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90
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91 typedef struct {
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92 ngx_rbtree_t rbtree;
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358
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93 ngx_rbtree_node_t sentinel;
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94 ngx_queue_t expire_queue;
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332
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95
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96 ngx_uint_t current;
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97 ngx_uint_t max;
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98 time_t inactive;
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99 } ngx_open_file_cache_t;
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100
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101
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102 typedef struct {
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103 ngx_open_file_cache_t *cache;
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104 ngx_cached_open_file_t *file;
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358
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105 ngx_uint_t min_uses;
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332
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106 ngx_log_t *log;
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107 } ngx_open_file_cache_cleanup_t;
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108
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109
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110 typedef struct {
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111
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112 /* ngx_connection_t stub to allow use c->fd as event ident */
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113 void *data;
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114 ngx_event_t *read;
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115 ngx_event_t *write;
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116 ngx_fd_t fd;
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117
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118 ngx_cached_open_file_t *file;
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119 ngx_open_file_cache_t *cache;
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120 } ngx_open_file_cache_event_t;
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121
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122
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123 ngx_open_file_cache_t *ngx_open_file_cache_init(ngx_pool_t *pool,
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124 ngx_uint_t max, time_t inactive);
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125 ngx_int_t ngx_open_cached_file(ngx_open_file_cache_t *cache, ngx_str_t *name,
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126 ngx_open_file_info_t *of, ngx_pool_t *pool);
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127
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128
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129 #endif /* _NGX_OPEN_FILE_CACHE_H_INCLUDED_ */
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