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