Mercurial > hg > nginx
annotate src/http/ngx_http_cache.h @ 197:0b81c7a0b133
nginx-0.0.1-2003-11-27-10:45:22 import
author | Igor Sysoev <igor@sysoev.ru> |
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date | Thu, 27 Nov 2003 07:45:22 +0000 |
parents | 8dee38ea9117 |
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rev | line source |
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1 #ifndef _NGX_HTTP_CACHE_H_INCLUDED_ |
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2 #define _NGX_HTTP_CACHE_H_INCLUDED_ |
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3 |
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4 |
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5 #include <ngx_config.h> |
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6 #include <ngx_core.h> |
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7 #include <ngx_http.h> |
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8 |
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9 |
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10 typedef struct { |
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11 uint32_t crc; |
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12 ngx_str_t key; |
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13 time_t accessed; |
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14 |
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15 unsigned refs:20; /* 1048576 references */ |
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16 unsigned count:2; /* lazy allocation: the 4 uses */ |
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17 unsigned deleted:1; |
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18 |
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19 ngx_fd_t fd; |
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20 time_t last_modified; |
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21 time_t updated; |
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22 |
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23 union { |
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24 off_t size; |
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25 ngx_str_t value; |
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26 } data; |
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27 } ngx_http_cache_t; |
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28 |
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29 |
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30 typedef struct { |
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31 time_t expires; |
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32 time_t last_modified; |
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33 time_t date; |
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34 off_t length; |
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35 size_t key_len; |
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36 char key[1]; |
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37 } ngx_http_cache_header_t; |
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38 |
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39 |
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40 #define NGX_HTTP_CACHE_HASH 7 |
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41 #define NGX_HTTP_CACHE_NELTS 4 |
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42 |
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43 typedef struct { |
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44 ngx_http_cache_t *elts; |
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45 size_t hash; |
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46 size_t nelts; |
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47 time_t life_time; |
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48 time_t check_time; |
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49 ngx_pool_t *pool; |
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50 } ngx_http_cache_hash_t; |
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52 |
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53 typedef struct { |
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54 ngx_http_cache_hash_t *hash; |
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55 ngx_http_cache_t *cache; |
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56 ngx_file_t file; |
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57 ngx_str_t key; |
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58 uint32_t crc; |
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59 u_char md5[16]; |
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60 ngx_path_t *path; |
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61 ngx_hunk_t *buf; |
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62 time_t expires; |
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63 time_t last_modified; |
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64 time_t date; |
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65 off_t length; |
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66 ssize_t header_size; |
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67 size_t file_start; |
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68 ngx_log_t *log; |
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69 } ngx_http_cache_ctx_t; |
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70 |
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72 typedef struct { |
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73 ngx_http_cache_hash_t *open_files; |
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74 } ngx_http_cache_conf_t; |
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75 |
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77 #define NGX_HTTP_CACHE_STALE 1 |
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78 #define NGX_HTTP_CACHE_AGED 2 |
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79 #define NGX_HTTP_CACHE_THE_SAME 3 |
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80 |
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81 |
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82 int ngx_http_cache_get_file(ngx_http_request_t *r, ngx_http_cache_ctx_t *ctx); |
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83 int ngx_http_cache_open_file(ngx_http_cache_ctx_t *ctx, ngx_file_uniq_t uniq); |
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84 int ngx_http_cache_update_file(ngx_http_request_t *r,ngx_http_cache_ctx_t *ctx, |
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85 ngx_str_t *temp_file); |
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86 |
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87 ngx_http_cache_t *ngx_http_cache_get(ngx_http_cache_hash_t *cache, |
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88 ngx_str_t *key, uint32_t *crc); |
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89 ngx_http_cache_t *ngx_http_cache_alloc(ngx_http_cache_hash_t *cache, |
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90 ngx_str_t *key, uint32_t crc, |
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91 ngx_log_t *log); |
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92 |
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93 int ngx_garbage_collector_http_cache_handler(ngx_gc_t *gc, ngx_str_t *name, |
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94 ngx_dir_t *dir); |
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95 |
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96 extern ngx_module_t ngx_http_cache_module; |
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97 |
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98 |
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99 |
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100 #endif /* _NGX_HTTP_CACHE_H_INCLUDED_ */ |