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0
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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 #include <ngx_http.h>
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464
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10 #include <ngx_md5.h>
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0
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11
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12
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518
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13 static ngx_int_t ngx_http_file_cache_read(ngx_http_request_t *r,
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14 ngx_http_cache_t *c);
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15 #if (NGX_HAVE_FILE_AIO)
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16 static void ngx_http_cache_aio_event_handler(ngx_event_t *ev);
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17 #endif
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468
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18 static ngx_int_t ngx_http_file_cache_exists(ngx_http_file_cache_t *cache,
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19 ngx_http_cache_t *c);
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464
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20 static ngx_http_file_cache_node_t *
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21 ngx_http_file_cache_lookup(ngx_http_file_cache_t *cache, u_char *key);
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22 static void ngx_http_file_cache_rbtree_insert_value(ngx_rbtree_node_t *temp,
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23 ngx_rbtree_node_t *node, ngx_rbtree_node_t *sentinel);
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24 static void ngx_http_file_cache_cleanup(void *data);
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468
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25 static time_t ngx_http_file_cache_forced_expire(ngx_http_file_cache_t *cache);
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26 static time_t ngx_http_file_cache_expire(ngx_http_file_cache_t *cache);
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27 static void ngx_http_file_cache_delete(ngx_http_file_cache_t *cache,
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28 ngx_queue_t *q, u_char *name);
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29 static ngx_int_t
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30 ngx_http_file_cache_manager_sleep(ngx_http_file_cache_t *cache);
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31 static ngx_int_t ngx_http_file_cache_noop(ngx_tree_ctx_t *ctx,
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464
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32 ngx_str_t *path);
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468
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33 static ngx_int_t ngx_http_file_cache_manage_file(ngx_tree_ctx_t *ctx,
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34 ngx_str_t *path);
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35 static ngx_int_t ngx_http_file_cache_add_file(ngx_tree_ctx_t *ctx,
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36 ngx_str_t *path);
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37 static ngx_int_t ngx_http_file_cache_add(ngx_http_file_cache_t *cache,
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38 ngx_http_cache_t *c);
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39 static ngx_int_t ngx_http_file_cache_delete_file(ngx_tree_ctx_t *ctx,
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464
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40 ngx_str_t *path);
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0
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41
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42
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502
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43 ngx_str_t ngx_http_cache_status[] = {
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44 ngx_string("MISS"),
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45 ngx_string("EXPIRED"),
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46 ngx_string("STALE"),
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47 ngx_string("UPDATING"),
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48 ngx_string("HIT")
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49 };
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50
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51
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464
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52 static u_char ngx_http_file_cache_key[] = { LF, 'K', 'E', 'Y', ':', ' ' };
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0
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53
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54
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464
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55 static ngx_int_t
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56 ngx_http_file_cache_init(ngx_shm_zone_t *shm_zone, void *data)
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0
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57 {
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464
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58 ngx_http_file_cache_t *ocache = data;
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0
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59
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468
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60 size_t len;
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514
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61 ngx_uint_t n;
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464
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62 ngx_http_file_cache_t *cache;
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0
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63
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464
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64 cache = shm_zone->data;
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0
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65
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464
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66 if (ocache) {
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67 if (ngx_strcmp(cache->path->name.data, ocache->path->name.data) != 0) {
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68 ngx_log_error(NGX_LOG_EMERG, shm_zone->shm.log, 0,
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69 "cache \"%V\" uses the \"%V\" cache path "
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70 "while previously it used the \"%V\" cache path",
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480
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71 &shm_zone->shm.name, &cache->path->name,
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464
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72 &ocache->path->name);
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0
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73
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74 return NGX_ERROR;
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75 }
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76
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514
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77 for (n = 0; n < 3; n++) {
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78 if (cache->path->level[n] != ocache->path->level[n]) {
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79 ngx_log_error(NGX_LOG_EMERG, shm_zone->shm.log, 0,
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80 "cache \"%V\" had previously different levels",
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81 &shm_zone->shm.name);
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82 return NGX_ERROR;
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83 }
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84 }
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85
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480
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86 cache->sh = ocache->sh;
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87
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464
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88 cache->shpool = ocache->shpool;
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468
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89 cache->bsize = ocache->bsize;
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90
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91 cache->max_size /= cache->bsize;
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464
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92
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514
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93 if (!cache->sh->cold || cache->sh->loading) {
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94 cache->path->loader = NULL;
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95 }
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96
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464
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97 return NGX_OK;
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98 }
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99
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100 cache->shpool = (ngx_slab_pool_t *) shm_zone->shm.addr;
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101
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480
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102 if (shm_zone->shm.exists) {
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103 cache->sh = cache->shpool->data;
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104 cache->bsize = ngx_fs_bsize(cache->path->name.data);
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105
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106 return NGX_OK;
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464
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107 }
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108
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480
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109 cache->sh = ngx_slab_alloc(cache->shpool, sizeof(ngx_http_file_cache_sh_t));
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110 if (cache->sh == NULL) {
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464
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111 return NGX_ERROR;
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112 }
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113
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480
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114 cache->shpool->data = cache->sh;
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115
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116 ngx_rbtree_init(&cache->sh->rbtree, &cache->sh->sentinel,
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464
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117 ngx_http_file_cache_rbtree_insert_value);
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118
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480
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119 ngx_queue_init(&cache->sh->queue);
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464
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120
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480
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121 cache->sh->cold = 1;
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514
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122 cache->sh->loading = 0;
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480
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123 cache->sh->size = 0;
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468
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124
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125 cache->bsize = ngx_fs_bsize(cache->path->name.data);
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126
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127 cache->max_size /= cache->bsize;
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128
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480
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129 len = sizeof(" in cache keys zone \"\"") + shm_zone->shm.name.len;
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468
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130
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131 cache->shpool->log_ctx = ngx_slab_alloc(cache->shpool, len);
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132 if (cache->shpool->log_ctx == NULL) {
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133 return NGX_ERROR;
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134 }
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135
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136 ngx_sprintf(cache->shpool->log_ctx, " in cache keys zone \"%V\"%Z",
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480
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137 &shm_zone->shm.name);
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464
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138
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139 return NGX_OK;
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140 }
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141
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142
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143 void
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144 ngx_http_file_cache_create_key(ngx_http_request_t *r)
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145 {
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146 size_t len;
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147 ngx_str_t *key;
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148 ngx_uint_t i;
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149 ngx_md5_t md5;
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150 ngx_http_cache_t *c;
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151
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152 c = r->cache;
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153
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154 len = 0;
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155
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156 ngx_crc32_init(c->crc32);
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157 ngx_md5_init(&md5);
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158
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159 key = c->keys.elts;
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160 for (i = 0; i < c->keys.nelts; i++) {
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161 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
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162 "http cache key: \"%V\"", &key[i]);
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163
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164 len += key[i].len;
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165
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166 ngx_crc32_update(&c->crc32, key[i].data, key[i].len);
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167 ngx_md5_update(&md5, key[i].data, key[i].len);
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168 }
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169
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170 c->header_start = sizeof(ngx_http_file_cache_header_t)
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171 + sizeof(ngx_http_file_cache_key) + len + 1;
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172
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173 ngx_crc32_final(c->crc32);
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174 ngx_md5_final(c->key, &md5);
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175 }
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176
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177
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178 ngx_int_t
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179 ngx_http_file_cache_open(ngx_http_request_t *r)
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180 {
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518
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181 u_char *p;
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182 ngx_int_t rc, rv;
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183 ngx_uint_t cold, test;
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184 ngx_path_t *path;
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185 ngx_http_cache_t *c;
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186 ngx_pool_cleanup_t *cln;
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187 ngx_open_file_info_t of;
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188 ngx_http_file_cache_t *cache;
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189 ngx_http_core_loc_conf_t *clcf;
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464
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190
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191 c = r->cache;
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518
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192
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193 if (c->buf) {
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194 return ngx_http_file_cache_read(r, c);
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195 }
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196
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464
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197 cache = c->file_cache;
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198
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199 cln = ngx_pool_cleanup_add(r->pool, 0);
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200 if (cln == NULL) {
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201 return NGX_ERROR;
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202 }
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203
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468
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204 rc = ngx_http_file_cache_exists(cache, c);
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464
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205
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498
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206 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
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207 "http file cache exists: %i e:%d", rc, c->exists);
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464
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208
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209 if (rc == NGX_ERROR) {
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210 return rc;
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211 }
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212
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213 cln->handler = ngx_http_file_cache_cleanup;
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214 cln->data = c;
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215
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216 if (rc == NGX_AGAIN) {
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518
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217 return NGX_HTTP_CACHE_SCARCE;
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464
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218 }
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219
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480
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220 cold = cache->sh->cold;
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464
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221
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222 if (rc == NGX_OK) {
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223
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224 if (c->error) {
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225 return c->error;
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226 }
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227
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228 c->temp_file = 1;
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229 test = c->exists ? 1 : 0;
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230 rv = NGX_DECLINED;
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231
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232 } else { /* rc == NGX_DECLINED */
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233
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234 if (c->min_uses > 1) {
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235
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236 if (!cold) {
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518
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237 return NGX_HTTP_CACHE_SCARCE;
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0
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238 }
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239
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464
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240 test = 1;
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518
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241 rv = NGX_HTTP_CACHE_SCARCE;
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464
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242
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243 } else {
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244 c->temp_file = 1;
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245 test = cold ? 1 : 0;
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246 rv = NGX_DECLINED;
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0
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247 }
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248 }
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249
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464
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250 path = cache->path;
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251
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252 c->file.name.len = path->name.len + 1 + path->len
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253 + 2 * NGX_HTTP_CACHE_KEY_LEN;
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254
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255 c->file.name.data = ngx_pnalloc(r->pool, c->file.name.len + 1);
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256 if (c->file.name.data == NULL) {
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257 return NGX_ERROR;
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258 }
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259
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260 ngx_memcpy(c->file.name.data, path->name.data, path->name.len);
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261
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262 p = c->file.name.data + path->name.len + 1 + path->len;
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263 p = ngx_hex_dump(p, c->key, NGX_HTTP_CACHE_KEY_LEN);
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264 *p = '\0';
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265
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266 ngx_create_hashed_filename(path, c->file.name.data, c->file.name.len);
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267
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268 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, ngx_cycle->log, 0,
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269 "cache file: \"%s\"", c->file.name.data);
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270
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271 if (!test) {
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272 return NGX_DECLINED;
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273 }
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274
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275 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
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276
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277 ngx_memzero(&of, sizeof(ngx_open_file_info_t));
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0
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278
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464
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279 of.uniq = c->uniq;
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280 of.valid = clcf->open_file_cache_valid;
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281 of.min_uses = clcf->open_file_cache_min_uses;
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282 of.events = clcf->open_file_cache_events;
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283 of.directio = NGX_OPEN_FILE_DIRECTIO_OFF;
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532
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284 of.read_ahead = clcf->read_ahead;
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464
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285
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286 if (ngx_open_cached_file(clcf->open_file_cache, &c->file.name, &of, r->pool)
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287 != NGX_OK)
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288 {
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289 switch (of.err) {
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290
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291 case 0:
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292 return NGX_ERROR;
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293
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294 case NGX_ENOENT:
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295 case NGX_ENOTDIR:
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296 return rv;
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297
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298 default:
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299 ngx_log_error(NGX_LOG_CRIT, r->connection->log, of.err,
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300 ngx_open_file_n " \"%s\" failed", c->file.name.data);
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301 return NGX_ERROR;
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302 }
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303 }
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304
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305 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
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306 "http file cache fd: %d", of.fd);
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307
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308 c->file.fd = of.fd;
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466
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309 c->file.log = r->connection->log;
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518
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310 c->uniq = of.uniq;
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311 c->length = of.size;
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464
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312
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313 c->buf = ngx_create_temp_buf(r->pool, c->body_start);
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314 if (c->buf == NULL) {
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315 return NGX_ERROR;
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316 }
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317
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518
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318 return ngx_http_file_cache_read(r, c);
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319 }
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320
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321
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322 static ngx_int_t
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323 ngx_http_file_cache_read(ngx_http_request_t *r, ngx_http_cache_t *c)
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324 {
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325 time_t now;
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326 ssize_t n;
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327 ngx_int_t rc;
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328 ngx_http_file_cache_t *cache;
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329 ngx_http_file_cache_header_t *h;
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330
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331 c = r->cache;
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332
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333 #if (NGX_HAVE_FILE_AIO)
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334 {
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335 ngx_http_core_loc_conf_t *clcf;
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336
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337 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
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338
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339 if (clcf->aio) {
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340 n = ngx_file_aio_read(&c->file, c->buf->pos, c->body_start, 0, r->pool);
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341
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342 if (n == NGX_AGAIN) {
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343 c->file.aio->data = r;
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344 c->file.aio->handler = ngx_http_cache_aio_event_handler;
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345
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346 r->main->blocked++;
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347 r->aio = 1;
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348
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349 return NGX_AGAIN;
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350 }
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351
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352 } else {
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353 n = ngx_read_file(&c->file, c->buf->pos, c->body_start, 0);
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354 }
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355 }
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356 #else
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357
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464
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358 n = ngx_read_file(&c->file, c->buf->pos, c->body_start, 0);
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359
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518
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360 #endif
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361
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464
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362 if (n == NGX_ERROR) {
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0
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363 return n;
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364 }
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365
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464
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366 if ((size_t) n <= c->header_start) {
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367 ngx_log_error(NGX_LOG_CRIT, r->connection->log, 0,
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26
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368 "cache file \"%s\" is too small", c->file.name.data);
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0
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369 return NGX_ERROR;
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370 }
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371
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464
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372 h = (ngx_http_file_cache_header_t *) c->buf->pos;
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0
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373
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464
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374 if (h->crc32 != c->crc32 || (size_t) h->header_start != c->header_start) {
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375 ngx_log_error(NGX_LOG_CRIT, r->connection->log, 0,
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376 "cache file \"%s\" has md5 collision", c->file.name.data);
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0
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377 return NGX_DECLINED;
|
|
|
378 }
|
|
|
379
|
|
464
|
380 c->buf->last += n;
|
|
26
|
381
|
|
464
|
382 c->valid_sec = h->valid_sec;
|
|
|
383 c->last_modified = h->last_modified;
|
|
|
384 c->date = h->date;
|
|
|
385 c->valid_msec = h->valid_msec;
|
|
|
386 c->body_start = h->body_start;
|
|
26
|
387
|
|
464
|
388 r->cached = 1;
|
|
|
389
|
|
518
|
390 cache = c->file_cache;
|
|
|
391
|
|
|
392 if (cache->sh->cold) {
|
|
464
|
393
|
|
|
394 ngx_shmtx_lock(&cache->shpool->mutex);
|
|
26
|
395
|
|
468
|
396 if (!c->node->exists) {
|
|
|
397 c->node->uses = 1;
|
|
|
398 c->node->body_start = c->body_start;
|
|
|
399 c->node->exists = 1;
|
|
518
|
400 c->node->uniq = c->uniq;
|
|
468
|
401
|
|
480
|
402 cache->sh->size += (c->length + cache->bsize - 1) / cache->bsize;
|
|
468
|
403 }
|
|
464
|
404
|
|
|
405 ngx_shmtx_unlock(&cache->shpool->mutex);
|
|
0
|
406 }
|
|
|
407
|
|
468
|
408 now = ngx_time();
|
|
|
409
|
|
464
|
410 if (c->valid_sec < now) {
|
|
0
|
411
|
|
498
|
412 ngx_shmtx_lock(&cache->shpool->mutex);
|
|
0
|
413
|
|
498
|
414 if (c->node->updating) {
|
|
|
415 rc = NGX_HTTP_CACHE_UPDATING;
|
|
464
|
416
|
|
498
|
417 } else {
|
|
|
418 c->node->updating = 1;
|
|
|
419 rc = NGX_HTTP_CACHE_STALE;
|
|
|
420 }
|
|
|
421
|
|
|
422 ngx_shmtx_unlock(&cache->shpool->mutex);
|
|
|
423
|
|
|
424 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
425 "http file cache expired: %i %T %T",
|
|
|
426 rc, c->valid_sec, now);
|
|
|
427
|
|
|
428 return rc;
|
|
0
|
429 }
|
|
|
430
|
|
464
|
431 return NGX_OK;
|
|
|
432 }
|
|
|
433
|
|
|
434
|
|
518
|
435 #if (NGX_HAVE_FILE_AIO)
|
|
|
436
|
|
|
437
|
|
|
438 static void
|
|
|
439 ngx_http_cache_aio_event_handler(ngx_event_t *ev)
|
|
|
440 {
|
|
|
441 ngx_event_aio_t *aio;
|
|
|
442 ngx_http_request_t *r;
|
|
|
443
|
|
|
444 aio = ev->data;
|
|
|
445 r = aio->data;
|
|
|
446
|
|
|
447 r->main->blocked--;
|
|
|
448 r->aio = 0;
|
|
|
449
|
|
|
450 r->connection->write->handler(r->connection->write);
|
|
|
451 }
|
|
|
452
|
|
|
453 #endif
|
|
|
454
|
|
|
455
|
|
464
|
456 static ngx_int_t
|
|
468
|
457 ngx_http_file_cache_exists(ngx_http_file_cache_t *cache, ngx_http_cache_t *c)
|
|
464
|
458 {
|
|
|
459 ngx_int_t rc;
|
|
|
460 ngx_http_file_cache_node_t *fcn;
|
|
|
461
|
|
|
462 ngx_shmtx_lock(&cache->shpool->mutex);
|
|
|
463
|
|
468
|
464 fcn = ngx_http_file_cache_lookup(cache, c->key);
|
|
464
|
465
|
|
|
466 if (fcn) {
|
|
|
467 ngx_queue_remove(&fcn->queue);
|
|
|
468
|
|
|
469 if (fcn->error) {
|
|
|
470
|
|
|
471 if (fcn->valid_sec < ngx_time()) {
|
|
|
472 goto renew;
|
|
|
473 }
|
|
|
474
|
|
|
475 rc = NGX_OK;
|
|
|
476
|
|
|
477 goto done;
|
|
|
478 }
|
|
|
479
|
|
|
480 fcn->uses++;
|
|
|
481 fcn->count++;
|
|
|
482
|
|
|
483 if (fcn->exists) {
|
|
|
484
|
|
468
|
485 c->exists = fcn->exists;
|
|
|
486 c->body_start = fcn->body_start;
|
|
464
|
487
|
|
|
488 rc = NGX_OK;
|
|
|
489
|
|
|
490 goto done;
|
|
|
491 }
|
|
|
492
|
|
468
|
493 if (fcn->uses >= c->min_uses) {
|
|
464
|
494
|
|
468
|
495 c->exists = fcn->exists;
|
|
|
496 c->body_start = fcn->body_start;
|
|
464
|
497
|
|
|
498 rc = NGX_OK;
|
|
|
499
|
|
|
500 } else {
|
|
|
501 rc = NGX_AGAIN;
|
|
|
502 }
|
|
|
503
|
|
|
504 goto done;
|
|
|
505 }
|
|
|
506
|
|
|
507 fcn = ngx_slab_alloc_locked(cache->shpool,
|
|
|
508 sizeof(ngx_http_file_cache_node_t));
|
|
|
509 if (fcn == NULL) {
|
|
|
510 ngx_shmtx_unlock(&cache->shpool->mutex);
|
|
|
511
|
|
478
|
512 (void) ngx_http_file_cache_forced_expire(cache);
|
|
464
|
513
|
|
|
514 ngx_shmtx_lock(&cache->shpool->mutex);
|
|
|
515
|
|
|
516 fcn = ngx_slab_alloc_locked(cache->shpool,
|
|
|
517 sizeof(ngx_http_file_cache_node_t));
|
|
|
518 if (fcn == NULL) {
|
|
|
519 rc = NGX_ERROR;
|
|
|
520 goto failed;
|
|
|
521 }
|
|
|
522 }
|
|
|
523
|
|
468
|
524 ngx_memcpy((u_char *) &fcn->node.key, c->key, sizeof(ngx_rbtree_key_t));
|
|
464
|
525
|
|
468
|
526 ngx_memcpy(fcn->key, &c->key[sizeof(ngx_rbtree_key_t)],
|
|
464
|
527 NGX_HTTP_CACHE_KEY_LEN - sizeof(ngx_rbtree_key_t));
|
|
|
528
|
|
480
|
529 ngx_rbtree_insert(&cache->sh->rbtree, &fcn->node);
|
|
464
|
530
|
|
|
531 renew:
|
|
|
532
|
|
|
533 rc = NGX_DECLINED;
|
|
|
534
|
|
|
535 fcn->uses = 1;
|
|
|
536 fcn->count = 1;
|
|
|
537 fcn->valid_msec = 0;
|
|
|
538 fcn->error = 0;
|
|
|
539 fcn->exists = 0;
|
|
|
540 fcn->valid_sec = 0;
|
|
|
541 fcn->uniq = 0;
|
|
|
542 fcn->body_start = 0;
|
|
470
|
543 fcn->length = 0;
|
|
464
|
544
|
|
|
545 done:
|
|
|
546
|
|
|
547 fcn->expire = ngx_time() + cache->inactive;
|
|
|
548
|
|
480
|
549 ngx_queue_insert_head(&cache->sh->queue, &fcn->queue);
|
|
464
|
550
|
|
468
|
551 c->uniq = fcn->uniq;
|
|
|
552 c->error = fcn->error;
|
|
|
553 c->node = fcn;
|
|
464
|
554
|
|
|
555 failed:
|
|
|
556
|
|
|
557 ngx_shmtx_unlock(&cache->shpool->mutex);
|
|
|
558
|
|
|
559 return rc;
|
|
|
560 }
|
|
|
561
|
|
|
562
|
|
|
563 static ngx_http_file_cache_node_t *
|
|
|
564 ngx_http_file_cache_lookup(ngx_http_file_cache_t *cache, u_char *key)
|
|
|
565 {
|
|
|
566 ngx_int_t rc;
|
|
|
567 ngx_rbtree_key_t node_key;
|
|
|
568 ngx_rbtree_node_t *node, *sentinel;
|
|
|
569 ngx_http_file_cache_node_t *fcn;
|
|
|
570
|
|
|
571 ngx_memcpy((u_char *) &node_key, key, sizeof(ngx_rbtree_key_t));
|
|
|
572
|
|
480
|
573 node = cache->sh->rbtree.root;
|
|
|
574 sentinel = cache->sh->rbtree.sentinel;
|
|
464
|
575
|
|
|
576 while (node != sentinel) {
|
|
|
577
|
|
|
578 if (node_key < node->key) {
|
|
|
579 node = node->left;
|
|
|
580 continue;
|
|
|
581 }
|
|
|
582
|
|
|
583 if (node_key > node->key) {
|
|
|
584 node = node->right;
|
|
|
585 continue;
|
|
|
586 }
|
|
|
587
|
|
|
588 /* node_key == node->key */
|
|
|
589
|
|
|
590 do {
|
|
|
591 fcn = (ngx_http_file_cache_node_t *) node;
|
|
|
592
|
|
|
593 rc = ngx_memcmp(&key[sizeof(ngx_rbtree_key_t)], fcn->key,
|
|
|
594 NGX_HTTP_CACHE_KEY_LEN - sizeof(ngx_rbtree_key_t));
|
|
|
595
|
|
|
596 if (rc == 0) {
|
|
|
597 return fcn;
|
|
|
598 }
|
|
|
599
|
|
|
600 node = (rc < 0) ? node->left : node->right;
|
|
|
601
|
|
|
602 } while (node != sentinel && node_key == node->key);
|
|
|
603
|
|
|
604 break;
|
|
|
605 }
|
|
|
606
|
|
|
607 /* not found */
|
|
|
608
|
|
|
609 return NULL;
|
|
|
610 }
|
|
|
611
|
|
|
612
|
|
|
613 static void
|
|
|
614 ngx_http_file_cache_rbtree_insert_value(ngx_rbtree_node_t *temp,
|
|
|
615 ngx_rbtree_node_t *node, ngx_rbtree_node_t *sentinel)
|
|
|
616 {
|
|
|
617 ngx_rbtree_node_t **p;
|
|
|
618 ngx_http_file_cache_node_t *cn, *cnt;
|
|
|
619
|
|
|
620 for ( ;; ) {
|
|
|
621
|
|
|
622 if (node->key < temp->key) {
|
|
|
623
|
|
|
624 p = &temp->left;
|
|
|
625
|
|
|
626 } else if (node->key > temp->key) {
|
|
|
627
|
|
|
628 p = &temp->right;
|
|
|
629
|
|
|
630 } else { /* node->key == temp->key */
|
|
|
631
|
|
|
632 cn = (ngx_http_file_cache_node_t *) node;
|
|
|
633 cnt = (ngx_http_file_cache_node_t *) temp;
|
|
|
634
|
|
|
635 p = (ngx_memcmp(cn->key, cnt->key,
|
|
|
636 NGX_HTTP_CACHE_KEY_LEN - sizeof(ngx_rbtree_key_t))
|
|
|
637 < 0)
|
|
|
638 ? &temp->left : &temp->right;
|
|
|
639 }
|
|
|
640
|
|
|
641 if (*p == sentinel) {
|
|
|
642 break;
|
|
|
643 }
|
|
|
644
|
|
|
645 temp = *p;
|
|
|
646 }
|
|
|
647
|
|
|
648 *p = node;
|
|
|
649 node->parent = temp;
|
|
|
650 node->left = sentinel;
|
|
|
651 node->right = sentinel;
|
|
|
652 ngx_rbt_red(node);
|
|
|
653 }
|
|
|
654
|
|
|
655
|
|
|
656 void
|
|
|
657 ngx_http_file_cache_set_header(ngx_http_request_t *r, u_char *buf)
|
|
|
658 {
|
|
|
659 ngx_http_file_cache_header_t *h = (ngx_http_file_cache_header_t *) buf;
|
|
|
660
|
|
|
661 u_char *p;
|
|
|
662 ngx_str_t *key;
|
|
|
663 ngx_uint_t i;
|
|
|
664 ngx_http_cache_t *c;
|
|
|
665
|
|
|
666 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
667 "http file cache set header");
|
|
|
668
|
|
|
669 c = r->cache;
|
|
|
670
|
|
|
671 h->valid_sec = c->valid_sec;
|
|
|
672 h->last_modified = c->last_modified;
|
|
|
673 h->date = c->date;
|
|
|
674 h->crc32 = c->crc32;
|
|
|
675 h->valid_msec = (u_short) c->valid_msec;
|
|
|
676 h->header_start = (u_short) c->header_start;
|
|
|
677 h->body_start = (u_short) c->body_start;
|
|
|
678
|
|
|
679 p = buf + sizeof(ngx_http_file_cache_header_t);
|
|
|
680
|
|
|
681 p = ngx_cpymem(p, ngx_http_file_cache_key, sizeof(ngx_http_file_cache_key));
|
|
|
682
|
|
|
683 key = c->keys.elts;
|
|
|
684 for (i = 0; i < c->keys.nelts; i++) {
|
|
|
685 p = ngx_copy(p, key[i].data, key[i].len);
|
|
|
686 }
|
|
|
687
|
|
|
688 *p = LF;
|
|
|
689 }
|
|
|
690
|
|
|
691
|
|
|
692 void
|
|
|
693 ngx_http_file_cache_update(ngx_http_request_t *r, ngx_temp_file_t *tf)
|
|
|
694 {
|
|
536
|
695 off_t size, length;
|
|
464
|
696 ngx_int_t rc;
|
|
|
697 ngx_file_uniq_t uniq;
|
|
|
698 ngx_file_info_t fi;
|
|
|
699 ngx_http_cache_t *c;
|
|
|
700 ngx_ext_rename_file_t ext;
|
|
|
701 ngx_http_file_cache_t *cache;
|
|
|
702
|
|
|
703 c = r->cache;
|
|
|
704
|
|
|
705 if (c->updated) {
|
|
|
706 return;
|
|
|
707 }
|
|
|
708
|
|
|
709 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
710 "http file cache update");
|
|
|
711
|
|
|
712 c->updated = 1;
|
|
|
713
|
|
|
714 cache = c->file_cache;
|
|
|
715
|
|
|
716 uniq = 0;
|
|
536
|
717 length = 0;
|
|
464
|
718
|
|
|
719 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
720 "http file cache rename: \"%s\" to \"%s\"",
|
|
|
721 tf->file.name.data, c->file.name.data);
|
|
|
722
|
|
|
723 ext.access = NGX_FILE_OWNER_ACCESS;
|
|
|
724 ext.path_access = NGX_FILE_OWNER_ACCESS;
|
|
|
725 ext.time = -1;
|
|
|
726 ext.create_path = 1;
|
|
|
727 ext.delete_file = 1;
|
|
|
728 ext.log = r->connection->log;
|
|
|
729
|
|
|
730 rc = ngx_ext_rename_file(&tf->file.name, &c->file.name, &ext);
|
|
|
731
|
|
|
732 if (rc == NGX_OK) {
|
|
|
733
|
|
|
734 if (ngx_fd_info(tf->file.fd, &fi) == NGX_FILE_ERROR) {
|
|
|
735 ngx_log_error(NGX_LOG_CRIT, r->connection->log, ngx_errno,
|
|
|
736 ngx_fd_info_n " \"%s\" failed", tf->file.name.data);
|
|
|
737
|
|
|
738 rc = NGX_ERROR;
|
|
|
739
|
|
|
740 } else {
|
|
|
741 uniq = ngx_file_uniq(&fi);
|
|
536
|
742 length = ngx_file_size(&fi);
|
|
464
|
743 }
|
|
|
744 }
|
|
|
745
|
|
536
|
746 size = (length + cache->bsize - 1) / cache->bsize;
|
|
468
|
747
|
|
464
|
748 ngx_shmtx_lock(&cache->shpool->mutex);
|
|
|
749
|
|
|
750 c->node->count--;
|
|
|
751 c->node->uniq = uniq;
|
|
|
752 c->node->body_start = c->body_start;
|
|
|
753
|
|
468
|
754 size = size - (c->node->length + cache->bsize - 1) / cache->bsize;
|
|
|
755
|
|
536
|
756 c->node->length = length;
|
|
468
|
757
|
|
480
|
758 cache->sh->size += size;
|
|
468
|
759
|
|
464
|
760 if (rc == NGX_OK) {
|
|
|
761 c->node->exists = 1;
|
|
|
762 }
|
|
|
763
|
|
498
|
764 c->node->updating = 0;
|
|
|
765
|
|
464
|
766 ngx_shmtx_unlock(&cache->shpool->mutex);
|
|
|
767 }
|
|
|
768
|
|
|
769
|
|
|
770 ngx_int_t
|
|
|
771 ngx_http_cache_send(ngx_http_request_t *r)
|
|
|
772 {
|
|
528
|
773 off_t size;
|
|
464
|
774 ngx_int_t rc;
|
|
|
775 ngx_buf_t *b;
|
|
|
776 ngx_chain_t out;
|
|
|
777 ngx_http_cache_t *c;
|
|
|
778
|
|
|
779 c = r->cache;
|
|
|
780
|
|
|
781 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
782 "http file cache send: %s", c->file.name.data);
|
|
|
783
|
|
|
784 /* we need to allocate all before the header would be sent */
|
|
|
785
|
|
|
786 b = ngx_pcalloc(r->pool, sizeof(ngx_buf_t));
|
|
|
787 if (b == NULL) {
|
|
|
788 return NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
789 }
|
|
|
790
|
|
|
791 b->file = ngx_pcalloc(r->pool, sizeof(ngx_file_t));
|
|
|
792 if (b->file == NULL) {
|
|
|
793 return NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
794 }
|
|
|
795
|
|
|
796 rc = ngx_http_send_header(r);
|
|
|
797
|
|
|
798 if (rc == NGX_ERROR || rc > NGX_OK || r->header_only) {
|
|
|
799 return rc;
|
|
|
800 }
|
|
|
801
|
|
528
|
802 size = c->length - c->body_start;
|
|
|
803 if (size == 0) {
|
|
|
804 return rc;
|
|
|
805 }
|
|
|
806
|
|
464
|
807 b->file_pos = c->body_start;
|
|
|
808 b->file_last = c->length;
|
|
|
809
|
|
528
|
810 b->in_file = size ? 1: 0;
|
|
464
|
811 b->last_buf = (r == r->main) ? 1: 0;
|
|
|
812 b->last_in_chain = 1;
|
|
|
813
|
|
|
814 b->file->fd = c->file.fd;
|
|
|
815 b->file->name = c->file.name;
|
|
|
816 b->file->log = r->connection->log;
|
|
|
817
|
|
|
818 out.buf = b;
|
|
|
819 out.next = NULL;
|
|
|
820
|
|
|
821 return ngx_http_output_filter(r, &out);
|
|
|
822 }
|
|
|
823
|
|
|
824
|
|
|
825 void
|
|
|
826 ngx_http_file_cache_free(ngx_http_request_t *r, ngx_temp_file_t *tf)
|
|
|
827 {
|
|
|
828 ngx_http_cache_t *c;
|
|
|
829 ngx_http_file_cache_t *cache;
|
|
|
830
|
|
|
831 c = r->cache;
|
|
|
832
|
|
|
833 if (c->updated) {
|
|
|
834 return;
|
|
|
835 }
|
|
|
836
|
|
|
837 c->updated = 1;
|
|
|
838
|
|
|
839 cache = c->file_cache;
|
|
|
840
|
|
|
841 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
842 "http file cache free");
|
|
|
843
|
|
|
844 ngx_shmtx_lock(&cache->shpool->mutex);
|
|
|
845
|
|
|
846 c->node->count--;
|
|
|
847
|
|
|
848 if (c->error) {
|
|
|
849 c->node->valid_sec = c->valid_sec;
|
|
|
850 c->node->valid_msec = c->valid_msec;
|
|
|
851 c->node->error = c->error;
|
|
|
852 }
|
|
|
853
|
|
498
|
854 c->node->updating = 0;
|
|
|
855
|
|
464
|
856 ngx_shmtx_unlock(&cache->shpool->mutex);
|
|
|
857
|
|
|
858 if (c->temp_file) {
|
|
|
859 if (tf && tf->file.fd != NGX_INVALID_FILE) {
|
|
|
860 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
861 "http file cache incomplete: \"%s\"",
|
|
|
862 tf->file.name.data);
|
|
|
863
|
|
|
864 if (ngx_delete_file(tf->file.name.data) == NGX_FILE_ERROR) {
|
|
|
865 ngx_log_error(NGX_LOG_CRIT, r->connection->log, ngx_errno,
|
|
|
866 ngx_delete_file_n " \"%s\" failed",
|
|
|
867 tf->file.name.data);
|
|
|
868 }
|
|
|
869 }
|
|
|
870 }
|
|
|
871 }
|
|
|
872
|
|
|
873
|
|
|
874 static void
|
|
|
875 ngx_http_file_cache_cleanup(void *data)
|
|
|
876 {
|
|
|
877 ngx_http_cache_t *c = data;
|
|
|
878
|
|
|
879 ngx_http_file_cache_t *cache;
|
|
|
880
|
|
|
881 if (c->updated) {
|
|
|
882 return;
|
|
|
883 }
|
|
|
884
|
|
|
885 c->updated = 1;
|
|
|
886
|
|
|
887 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->file.log, 0,
|
|
|
888 "http file cache cleanup");
|
|
|
889
|
|
|
890 if (c->error) {
|
|
|
891 return;
|
|
|
892 }
|
|
|
893
|
|
|
894 cache = c->file_cache;
|
|
|
895
|
|
|
896 ngx_shmtx_lock(&cache->shpool->mutex);
|
|
|
897
|
|
|
898 c->node->count--;
|
|
|
899
|
|
|
900 ngx_shmtx_unlock(&cache->shpool->mutex);
|
|
|
901 }
|
|
|
902
|
|
|
903
|
|
|
904 static time_t
|
|
468
|
905 ngx_http_file_cache_forced_expire(ngx_http_file_cache_t *cache)
|
|
|
906 {
|
|
|
907 u_char *name;
|
|
|
908 size_t len;
|
|
|
909 time_t wait;
|
|
|
910 ngx_uint_t tries;
|
|
|
911 ngx_path_t *path;
|
|
|
912 ngx_queue_t *q;
|
|
|
913 ngx_http_file_cache_node_t *fcn;
|
|
|
914
|
|
|
915 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, ngx_cycle->log, 0,
|
|
|
916 "http file cache forced expire");
|
|
|
917
|
|
|
918 path = cache->path;
|
|
|
919 len = path->name.len + 1 + path->len + 2 * NGX_HTTP_CACHE_KEY_LEN;
|
|
|
920
|
|
|
921 name = ngx_alloc(len + 1, ngx_cycle->log);
|
|
|
922 if (name == NULL) {
|
|
478
|
923 return 10;
|
|
468
|
924 }
|
|
|
925
|
|
|
926 ngx_memcpy(name, path->name.data, path->name.len);
|
|
|
927
|
|
478
|
928 wait = 10;
|
|
468
|
929 tries = 0;
|
|
|
930
|
|
|
931 ngx_shmtx_lock(&cache->shpool->mutex);
|
|
|
932
|
|
480
|
933 for (q = ngx_queue_last(&cache->sh->queue);
|
|
|
934 q != ngx_queue_sentinel(&cache->sh->queue);
|
|
468
|
935 q = ngx_queue_prev(q))
|
|
|
936 {
|
|
|
937 fcn = ngx_queue_data(q, ngx_http_file_cache_node_t, queue);
|
|
|
938
|
|
|
939 ngx_log_debug6(NGX_LOG_DEBUG_HTTP, ngx_cycle->log, 0,
|
|
|
940 "http file cache forced expire: #%d %d %02xd%02xd%02xd%02xd",
|
|
|
941 fcn->count, fcn->exists,
|
|
|
942 fcn->key[0], fcn->key[1], fcn->key[2], fcn->key[3]);
|
|
|
943
|
|
|
944 if (fcn->count) {
|
|
|
945
|
|
|
946 if (tries++ < 20) {
|
|
|
947 continue;
|
|
|
948 }
|
|
|
949
|
|
|
950 wait = 1;
|
|
|
951
|
|
|
952 break;
|
|
|
953 }
|
|
|
954
|
|
|
955 if (!fcn->exists) {
|
|
|
956
|
|
|
957 ngx_queue_remove(q);
|
|
480
|
958 ngx_rbtree_delete(&cache->sh->rbtree, &fcn->node);
|
|
468
|
959 ngx_slab_free_locked(cache->shpool, fcn);
|
|
|
960
|
|
|
961 break;
|
|
|
962 }
|
|
|
963
|
|
|
964 ngx_http_file_cache_delete(cache, q, name);
|
|
|
965
|
|
|
966 break;
|
|
|
967 }
|
|
|
968
|
|
|
969 ngx_shmtx_unlock(&cache->shpool->mutex);
|
|
|
970
|
|
|
971 ngx_free(name);
|
|
|
972
|
|
|
973 return wait;
|
|
|
974 }
|
|
|
975
|
|
|
976
|
|
|
977 static time_t
|
|
|
978 ngx_http_file_cache_expire(ngx_http_file_cache_t *cache)
|
|
464
|
979 {
|
|
|
980 u_char *name, *p;
|
|
|
981 size_t len;
|
|
|
982 time_t now, wait;
|
|
|
983 ngx_path_t *path;
|
|
|
984 ngx_queue_t *q;
|
|
|
985 ngx_http_file_cache_node_t *fcn;
|
|
|
986 u_char key[2 * NGX_HTTP_CACHE_KEY_LEN];
|
|
|
987
|
|
|
988 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, ngx_cycle->log, 0,
|
|
|
989 "http file cache expire");
|
|
|
990
|
|
|
991 path = cache->path;
|
|
|
992 len = path->name.len + 1 + path->len + 2 * NGX_HTTP_CACHE_KEY_LEN;
|
|
|
993
|
|
468
|
994 name = ngx_alloc(len + 1, ngx_cycle->log);
|
|
|
995 if (name == NULL) {
|
|
478
|
996 return 10;
|
|
468
|
997 }
|
|
|
998
|
|
|
999 ngx_memcpy(name, path->name.data, path->name.len);
|
|
|
1000
|
|
464
|
1001 now = ngx_time();
|
|
|
1002
|
|
|
1003 ngx_shmtx_lock(&cache->shpool->mutex);
|
|
|
1004
|
|
|
1005 for ( ;; ) {
|
|
|
1006
|
|
480
|
1007 if (ngx_queue_empty(&cache->sh->queue)) {
|
|
478
|
1008 wait = 10;
|
|
464
|
1009 break;
|
|
|
1010 }
|
|
|
1011
|
|
480
|
1012 q = ngx_queue_last(&cache->sh->queue);
|
|
464
|
1013
|
|
|
1014 fcn = ngx_queue_data(q, ngx_http_file_cache_node_t, queue);
|
|
|
1015
|
|
468
|
1016 wait = fcn->expire - now;
|
|
464
|
1017
|
|
468
|
1018 if (wait > 0) {
|
|
478
|
1019 wait = wait > 10 ? 10 : wait;
|
|
468
|
1020 break;
|
|
464
|
1021 }
|
|
|
1022
|
|
|
1023 ngx_log_debug6(NGX_LOG_DEBUG_HTTP, ngx_cycle->log, 0,
|
|
|
1024 "http file cache expire: #%d %d %02xd%02xd%02xd%02xd",
|
|
|
1025 fcn->count, fcn->exists,
|
|
|
1026 fcn->key[0], fcn->key[1], fcn->key[2], fcn->key[3]);
|
|
|
1027
|
|
|
1028 if (fcn->count) {
|
|
|
1029
|
|
468
|
1030 p = ngx_hex_dump(key, (u_char *) &fcn->node.key,
|
|
|
1031 sizeof(ngx_rbtree_key_t));
|
|
464
|
1032
|
|
468
|
1033 len = NGX_HTTP_CACHE_KEY_LEN - sizeof(ngx_rbtree_key_t);
|
|
|
1034 (void) ngx_hex_dump(p, fcn->key, len);
|
|
464
|
1035
|
|
468
|
1036 /*
|
|
|
1037 * abnormally exited workers may leave locked cache entries,
|
|
|
1038 * and although it may be safe to remove them completely,
|
|
|
1039 * we prefer to remove them from inactive queue and rbtree
|
|
|
1040 * only, and to allow other leaks
|
|
|
1041 */
|
|
464
|
1042
|
|
468
|
1043 ngx_queue_remove(q);
|
|
480
|
1044 ngx_rbtree_delete(&cache->sh->rbtree, &fcn->node);
|
|
464
|
1045
|
|
468
|
1046 ngx_log_error(NGX_LOG_ALERT, ngx_cycle->log, 0,
|
|
466
|
1047 "ignore long locked inactive cache entry %*s, count:%d",
|
|
|
1048 2 * NGX_HTTP_CACHE_KEY_LEN, key, fcn->count);
|
|
464
|
1049
|
|
468
|
1050 continue;
|
|
464
|
1051 }
|
|
|
1052
|
|
|
1053 if (!fcn->exists) {
|
|
|
1054
|
|
|
1055 ngx_queue_remove(q);
|
|
480
|
1056 ngx_rbtree_delete(&cache->sh->rbtree, &fcn->node);
|
|
464
|
1057 ngx_slab_free_locked(cache->shpool, fcn);
|
|
|
1058
|
|
|
1059 continue;
|
|
|
1060 }
|
|
|
1061
|
|
468
|
1062 ngx_http_file_cache_delete(cache, q, name);
|
|
464
|
1063 }
|
|
|
1064
|
|
|
1065 ngx_shmtx_unlock(&cache->shpool->mutex);
|
|
|
1066
|
|
468
|
1067 ngx_free(name);
|
|
|
1068
|
|
464
|
1069 return wait;
|
|
|
1070 }
|
|
|
1071
|
|
|
1072
|
|
468
|
1073 static void
|
|
|
1074 ngx_http_file_cache_delete(ngx_http_file_cache_t *cache, ngx_queue_t *q,
|
|
|
1075 u_char *name)
|
|
|
1076 {
|
|
|
1077 u_char *p;
|
|
|
1078 size_t len;
|
|
|
1079 ngx_path_t *path;
|
|
|
1080 ngx_http_file_cache_node_t *fcn;
|
|
|
1081
|
|
|
1082 fcn = ngx_queue_data(q, ngx_http_file_cache_node_t, queue);
|
|
|
1083
|
|
480
|
1084 cache->sh->size -= (fcn->length + cache->bsize - 1) / cache->bsize;
|
|
468
|
1085
|
|
|
1086 path = cache->path;
|
|
|
1087
|
|
|
1088 p = name + path->name.len + 1 + path->len;
|
|
|
1089
|
|
|
1090 p = ngx_hex_dump(p, (u_char *) &fcn->node.key, sizeof(ngx_rbtree_key_t));
|
|
|
1091
|
|
|
1092 len = NGX_HTTP_CACHE_KEY_LEN - sizeof(ngx_rbtree_key_t);
|
|
|
1093 p = ngx_hex_dump(p, fcn->key, len);
|
|
|
1094 *p = '\0';
|
|
|
1095
|
|
|
1096 ngx_queue_remove(q);
|
|
|
1097
|
|
480
|
1098 ngx_rbtree_delete(&cache->sh->rbtree, &fcn->node);
|
|
468
|
1099
|
|
|
1100 ngx_slab_free_locked(cache->shpool, fcn);
|
|
|
1101
|
|
|
1102 ngx_shmtx_unlock(&cache->shpool->mutex);
|
|
|
1103
|
|
|
1104 len = path->name.len + 1 + path->len + 2 * NGX_HTTP_CACHE_KEY_LEN;
|
|
|
1105
|
|
|
1106 ngx_create_hashed_filename(path, name, len);
|
|
|
1107
|
|
|
1108 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, ngx_cycle->log, 0,
|
|
|
1109 "http file cache expire: \"%s\"", name);
|
|
|
1110
|
|
|
1111 if (ngx_delete_file(name) == NGX_FILE_ERROR) {
|
|
|
1112 ngx_log_error(NGX_LOG_CRIT, ngx_cycle->log, ngx_errno,
|
|
|
1113 ngx_delete_file_n " \"%s\" failed", name);
|
|
|
1114 }
|
|
|
1115
|
|
|
1116 ngx_shmtx_lock(&cache->shpool->mutex);
|
|
|
1117 }
|
|
|
1118
|
|
|
1119
|
|
|
1120 static time_t
|
|
|
1121 ngx_http_file_cache_manager(void *data)
|
|
464
|
1122 {
|
|
|
1123 ngx_http_file_cache_t *cache = data;
|
|
|
1124
|
|
514
|
1125 off_t size;
|
|
|
1126 time_t next;
|
|
464
|
1127
|
|
468
|
1128 next = ngx_http_file_cache_expire(cache);
|
|
|
1129
|
|
|
1130 cache->last = ngx_current_msec;
|
|
|
1131 cache->files = 0;
|
|
|
1132
|
|
|
1133 for ( ;; ) {
|
|
|
1134 ngx_shmtx_lock(&cache->shpool->mutex);
|
|
|
1135
|
|
480
|
1136 size = cache->sh->size;
|
|
464
|
1137
|
|
468
|
1138 ngx_shmtx_unlock(&cache->shpool->mutex);
|
|
|
1139
|
|
470
|
1140 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, ngx_cycle->log, 0,
|
|
|
1141 "http file cache size: %O", size);
|
|
|
1142
|
|
468
|
1143 if (size < cache->max_size) {
|
|
|
1144 return next;
|
|
|
1145 }
|
|
464
|
1146
|
|
468
|
1147 next = ngx_http_file_cache_forced_expire(cache);
|
|
|
1148
|
|
|
1149 if (ngx_http_file_cache_manager_sleep(cache) != NGX_OK) {
|
|
|
1150 return next;
|
|
|
1151 }
|
|
|
1152 }
|
|
464
|
1153 }
|
|
|
1154
|
|
|
1155
|
|
514
|
1156 static void
|
|
|
1157 ngx_http_file_cache_loader(void *data)
|
|
|
1158 {
|
|
|
1159 ngx_http_file_cache_t *cache = data;
|
|
|
1160
|
|
|
1161 ngx_tree_ctx_t tree;
|
|
|
1162
|
|
|
1163 if (!cache->sh->cold || cache->sh->loading) {
|
|
|
1164 return;
|
|
|
1165 }
|
|
|
1166
|
|
|
1167 if (!ngx_atomic_cmp_set(&cache->sh->loading, 0, ngx_pid)) {
|
|
|
1168 return;
|
|
|
1169 }
|
|
|
1170
|
|
|
1171 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, ngx_cycle->log, 0,
|
|
|
1172 "http file cache loader");
|
|
|
1173
|
|
|
1174 tree.init_handler = NULL;
|
|
|
1175 tree.file_handler = ngx_http_file_cache_manage_file;
|
|
|
1176 tree.pre_tree_handler = ngx_http_file_cache_noop;
|
|
|
1177 tree.post_tree_handler = ngx_http_file_cache_noop;
|
|
|
1178 tree.spec_handler = ngx_http_file_cache_delete_file;
|
|
|
1179 tree.data = cache;
|
|
|
1180 tree.alloc = 0;
|
|
|
1181 tree.log = ngx_cycle->log;
|
|
|
1182
|
|
|
1183 cache->last = ngx_current_msec;
|
|
|
1184 cache->files = 0;
|
|
|
1185
|
|
|
1186 if (ngx_walk_tree(&tree, &cache->path->name) == NGX_ABORT) {
|
|
|
1187 cache->sh->loading = 0;
|
|
|
1188 return;
|
|
|
1189 }
|
|
|
1190
|
|
|
1191 cache->sh->cold = 0;
|
|
|
1192 cache->sh->loading = 0;
|
|
|
1193
|
|
|
1194 ngx_log_error(NGX_LOG_NOTICE, ngx_cycle->log, 0,
|
|
|
1195 "http file cache: %V %.3fM, bsize: %uz",
|
|
|
1196 &cache->path->name,
|
|
|
1197 ((double) cache->sh->size * cache->bsize) / (1024 * 1024),
|
|
|
1198 cache->bsize);
|
|
|
1199 }
|
|
|
1200
|
|
|
1201
|
|
464
|
1202 static ngx_int_t
|
|
468
|
1203 ngx_http_file_cache_manager_sleep(ngx_http_file_cache_t *cache)
|
|
|
1204 {
|
|
|
1205 ngx_msec_t elapsed;
|
|
|
1206
|
|
|
1207 if (cache->files++ > 100) {
|
|
|
1208
|
|
|
1209 ngx_time_update(0, 0);
|
|
|
1210
|
|
|
1211 elapsed = ngx_abs((ngx_msec_int_t) (ngx_current_msec - cache->last));
|
|
|
1212
|
|
|
1213 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, ngx_cycle->log, 0,
|
|
|
1214 "http file cache manager time: %M", elapsed);
|
|
|
1215
|
|
|
1216 if (elapsed > 200) {
|
|
|
1217
|
|
|
1218 /*
|
|
|
1219 * if processing 100 files takes more than 200ms,
|
|
|
1220 * it seems that many operations require disk i/o,
|
|
|
1221 * therefore sleep 200ms
|
|
|
1222 */
|
|
|
1223
|
|
|
1224 ngx_msleep(200);
|
|
|
1225
|
|
|
1226 ngx_time_update(0, 0);
|
|
|
1227 }
|
|
|
1228
|
|
|
1229 cache->last = ngx_current_msec;
|
|
|
1230 cache->files = 0;
|
|
|
1231 }
|
|
|
1232
|
|
|
1233 return (ngx_quit || ngx_terminate) ? NGX_ABORT : NGX_OK;
|
|
|
1234 }
|
|
|
1235
|
|
|
1236
|
|
|
1237 static ngx_int_t
|
|
|
1238 ngx_http_file_cache_noop(ngx_tree_ctx_t *ctx, ngx_str_t *path)
|
|
464
|
1239 {
|
|
|
1240 return NGX_OK;
|
|
|
1241 }
|
|
|
1242
|
|
|
1243
|
|
|
1244 static ngx_int_t
|
|
468
|
1245 ngx_http_file_cache_manage_file(ngx_tree_ctx_t *ctx, ngx_str_t *path)
|
|
464
|
1246 {
|
|
468
|
1247 ngx_http_file_cache_t *cache;
|
|
|
1248
|
|
|
1249 cache = ctx->data;
|
|
|
1250
|
|
|
1251 if (ngx_http_file_cache_add_file(ctx, path) != NGX_OK) {
|
|
|
1252 (void) ngx_http_file_cache_delete_file(ctx, path);
|
|
|
1253 }
|
|
|
1254
|
|
|
1255 return ngx_http_file_cache_manager_sleep(cache);
|
|
|
1256 }
|
|
|
1257
|
|
464
|
1258
|
|
468
|
1259 static ngx_int_t
|
|
|
1260 ngx_http_file_cache_add_file(ngx_tree_ctx_t *ctx, ngx_str_t *name)
|
|
|
1261 {
|
|
|
1262 u_char *p;
|
|
|
1263 ngx_fd_t fd;
|
|
|
1264 ngx_int_t n;
|
|
|
1265 ngx_uint_t i;
|
|
|
1266 ngx_file_info_t fi;
|
|
|
1267 ngx_http_cache_t c;
|
|
|
1268 ngx_http_file_cache_t *cache;
|
|
|
1269 ngx_http_file_cache_header_t h;
|
|
|
1270
|
|
|
1271 if (name->len < 2 * NGX_HTTP_CACHE_KEY_LEN) {
|
|
|
1272 return NGX_ERROR;
|
|
464
|
1273 }
|
|
|
1274
|
|
468
|
1275 ngx_memzero(&c, sizeof(ngx_http_cache_t));
|
|
|
1276
|
|
|
1277 fd = ngx_open_file(name->data, NGX_FILE_RDONLY, NGX_FILE_OPEN, 0);
|
|
|
1278
|
|
|
1279 if (fd == NGX_INVALID_FILE) {
|
|
|
1280 ngx_log_error(NGX_LOG_CRIT, ctx->log, ngx_errno,
|
|
|
1281 ngx_open_file_n " \"%s\" failed", name->data);
|
|
|
1282 return NGX_ERROR;
|
|
|
1283 }
|
|
|
1284
|
|
|
1285 c.file.fd = fd;
|
|
|
1286 c.file.name = *name;
|
|
|
1287 c.file.log = ctx->log;
|
|
|
1288
|
|
|
1289 n = ngx_read_file(&c.file, (u_char *) &h,
|
|
|
1290 sizeof(ngx_http_file_cache_header_t), 0);
|
|
|
1291 if (n == NGX_ERROR) {
|
|
|
1292 return NGX_ERROR;
|
|
|
1293 }
|
|
|
1294
|
|
|
1295 if ((size_t) n < sizeof(ngx_http_file_cache_header_t)) {
|
|
|
1296 ngx_log_error(NGX_LOG_CRIT, ctx->log, 0,
|
|
|
1297 "cache file \"%s\" is too small", name->data);
|
|
|
1298 return NGX_ERROR;
|
|
|
1299 }
|
|
|
1300
|
|
|
1301 if (ngx_fd_info(fd, &fi) == NGX_FILE_ERROR) {
|
|
|
1302 ngx_log_error(NGX_LOG_CRIT, ctx->log, ngx_errno,
|
|
|
1303 ngx_fd_info_n " \"%s\" failed", name->data);
|
|
|
1304
|
|
|
1305 } else {
|
|
|
1306 c.uniq = ngx_file_uniq(&fi);
|
|
|
1307 c.valid_sec = h.valid_sec;
|
|
|
1308 c.valid_msec = h.valid_msec;
|
|
|
1309 c.body_start = h.body_start;
|
|
|
1310 c.length = ngx_file_size(&fi);
|
|
|
1311 }
|
|
|
1312
|
|
|
1313 if (ngx_close_file(fd) == NGX_FILE_ERROR) {
|
|
|
1314 ngx_log_error(NGX_LOG_ALERT, ctx->log, ngx_errno,
|
|
|
1315 ngx_close_file_n " \"%s\" failed", name->data);
|
|
|
1316 }
|
|
|
1317
|
|
|
1318 if (c.body_start == 0) {
|
|
|
1319 return NGX_ERROR;
|
|
|
1320 }
|
|
|
1321
|
|
|
1322 p = &name->data[name->len - 2 * NGX_HTTP_CACHE_KEY_LEN];
|
|
464
|
1323
|
|
|
1324 for (i = 0; i < NGX_HTTP_CACHE_KEY_LEN; i++) {
|
|
|
1325 n = ngx_hextoi(p, 2);
|
|
|
1326
|
|
|
1327 if (n == NGX_ERROR) {
|
|
468
|
1328 return NGX_ERROR;
|
|
464
|
1329 }
|
|
|
1330
|
|
|
1331 p += 2;
|
|
|
1332
|
|
468
|
1333 c.key[i] = (u_char) n;
|
|
464
|
1334 }
|
|
|
1335
|
|
|
1336 cache = ctx->data;
|
|
|
1337
|
|
468
|
1338 return ngx_http_file_cache_add(cache, &c);
|
|
|
1339 }
|
|
|
1340
|
|
|
1341
|
|
|
1342 static ngx_int_t
|
|
|
1343 ngx_http_file_cache_add(ngx_http_file_cache_t *cache, ngx_http_cache_t *c)
|
|
|
1344 {
|
|
|
1345 ngx_http_file_cache_node_t *fcn;
|
|
|
1346
|
|
464
|
1347 ngx_shmtx_lock(&cache->shpool->mutex);
|
|
|
1348
|
|
468
|
1349 fcn = ngx_http_file_cache_lookup(cache, c->key);
|
|
|
1350
|
|
|
1351 if (fcn == NULL) {
|
|
|
1352
|
|
|
1353 fcn = ngx_slab_alloc_locked(cache->shpool,
|
|
|
1354 sizeof(ngx_http_file_cache_node_t));
|
|
|
1355 if (fcn == NULL) {
|
|
|
1356 ngx_shmtx_unlock(&cache->shpool->mutex);
|
|
|
1357 return NGX_ERROR;
|
|
|
1358 }
|
|
|
1359
|
|
|
1360 ngx_memcpy((u_char *) &fcn->node.key, c->key, sizeof(ngx_rbtree_key_t));
|
|
|
1361
|
|
|
1362 ngx_memcpy(fcn->key, &c->key[sizeof(ngx_rbtree_key_t)],
|
|
|
1363 NGX_HTTP_CACHE_KEY_LEN - sizeof(ngx_rbtree_key_t));
|
|
|
1364
|
|
480
|
1365 ngx_rbtree_insert(&cache->sh->rbtree, &fcn->node);
|
|
468
|
1366
|
|
|
1367 fcn->uses = 1;
|
|
|
1368 fcn->count = 0;
|
|
|
1369 fcn->valid_msec = c->valid_msec;
|
|
|
1370 fcn->error = 0;
|
|
|
1371 fcn->exists = 1;
|
|
|
1372 fcn->uniq = c->uniq;
|
|
|
1373 fcn->valid_sec = c->valid_sec;
|
|
|
1374 fcn->body_start = c->body_start;
|
|
|
1375 fcn->length = c->length;
|
|
|
1376
|
|
480
|
1377 cache->sh->size += (c->length + cache->bsize - 1) / cache->bsize;
|
|
468
|
1378
|
|
|
1379 } else {
|
|
|
1380 ngx_queue_remove(&fcn->queue);
|
|
|
1381 }
|
|
|
1382
|
|
|
1383 fcn->expire = ngx_time() + cache->inactive;
|
|
|
1384
|
|
480
|
1385 ngx_queue_insert_head(&cache->sh->queue, &fcn->queue);
|
|
464
|
1386
|
|
|
1387 ngx_shmtx_unlock(&cache->shpool->mutex);
|
|
|
1388
|
|
468
|
1389 return NGX_OK;
|
|
|
1390 }
|
|
|
1391
|
|
464
|
1392
|
|
468
|
1393 static ngx_int_t
|
|
|
1394 ngx_http_file_cache_delete_file(ngx_tree_ctx_t *ctx, ngx_str_t *path)
|
|
|
1395 {
|
|
464
|
1396 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, ctx->log, 0,
|
|
468
|
1397 "http file cache delete: \"%s\"", path->data);
|
|
464
|
1398
|
|
|
1399 if (ngx_delete_file(path->data) == NGX_FILE_ERROR) {
|
|
|
1400 ngx_log_error(NGX_LOG_CRIT, ctx->log, ngx_errno,
|
|
|
1401 ngx_delete_file_n " \"%s\" failed", path->data);
|
|
|
1402 }
|
|
26
|
1403
|
|
0
|
1404 return NGX_OK;
|
|
|
1405 }
|
|
|
1406
|
|
|
1407
|
|
464
|
1408 time_t
|
|
|
1409 ngx_http_file_cache_valid(ngx_array_t *cache_valid, ngx_uint_t status)
|
|
0
|
1410 {
|
|
464
|
1411 ngx_uint_t i;
|
|
|
1412 ngx_http_cache_valid_t *valid;
|
|
0
|
1413
|
|
470
|
1414 if (cache_valid == NULL) {
|
|
|
1415 return 0;
|
|
|
1416 }
|
|
|
1417
|
|
464
|
1418 valid = cache_valid->elts;
|
|
|
1419 for (i = 0; i < cache_valid->nelts; i++) {
|
|
0
|
1420
|
|
464
|
1421 if (valid[i].status == 0) {
|
|
|
1422 return valid[i].valid;
|
|
0
|
1423 }
|
|
|
1424
|
|
464
|
1425 if (valid[i].status == status) {
|
|
|
1426 return valid[i].valid;
|
|
0
|
1427 }
|
|
464
|
1428 }
|
|
0
|
1429
|
|
464
|
1430 return 0;
|
|
0
|
1431 }
|
|
|
1432
|
|
|
1433
|
|
464
|
1434 char *
|
|
|
1435 ngx_http_file_cache_set_slot(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
|
1436 {
|
|
468
|
1437 off_t max_size;
|
|
464
|
1438 u_char *last, *p;
|
|
468
|
1439 time_t inactive;
|
|
464
|
1440 ssize_t size;
|
|
|
1441 ngx_str_t s, name, *value;
|
|
|
1442 ngx_uint_t i, n;
|
|
|
1443 ngx_http_file_cache_t *cache;
|
|
|
1444
|
|
|
1445 cache = ngx_pcalloc(cf->pool, sizeof(ngx_http_file_cache_t));
|
|
|
1446 if (cache == NULL) {
|
|
|
1447 return NGX_CONF_ERROR;
|
|
|
1448 }
|
|
|
1449
|
|
|
1450 cache->path = ngx_pcalloc(cf->pool, sizeof(ngx_path_t));
|
|
|
1451 if (cache->path == NULL) {
|
|
|
1452 return NGX_CONF_ERROR;
|
|
|
1453 }
|
|
|
1454
|
|
|
1455 inactive = 600;
|
|
|
1456
|
|
|
1457 name.len = 0;
|
|
|
1458 size = 0;
|
|
468
|
1459 max_size = NGX_MAX_OFF_T_VALUE;
|
|
464
|
1460
|
|
|
1461 value = cf->args->elts;
|
|
|
1462
|
|
|
1463 cache->path->name = value[1];
|
|
|
1464
|
|
|
1465 if (cache->path->name.data[cache->path->name.len - 1] == '/') {
|
|
|
1466 cache->path->name.len--;
|
|
|
1467 }
|
|
|
1468
|
|
|
1469 if (ngx_conf_full_name(cf->cycle, &cache->path->name, 0) != NGX_OK) {
|
|
|
1470 return NGX_CONF_ERROR;
|
|
|
1471 }
|
|
|
1472
|
|
|
1473 for (i = 2; i < cf->args->nelts; i++) {
|
|
|
1474
|
|
|
1475 if (ngx_strncmp(value[i].data, "levels=", 7) == 0) {
|
|
|
1476
|
|
|
1477 p = value[i].data + 7;
|
|
|
1478 last = value[i].data + value[i].len;
|
|
|
1479
|
|
472
|
1480 for (n = 0; n < 3 && p < last; n++) {
|
|
464
|
1481
|
|
472
|
1482 if (*p > '0' && *p < '3') {
|
|
464
|
1483
|
|
|
1484 cache->path->level[n] = *p++ - '0';
|
|
|
1485 cache->path->len += cache->path->level[n] + 1;
|
|
|
1486
|
|
|
1487 if (p == last) {
|
|
|
1488 break;
|
|
|
1489 }
|
|
|
1490
|
|
472
|
1491 if (*p++ == ':' && n < 2 && p != last) {
|
|
464
|
1492 continue;
|
|
|
1493 }
|
|
472
|
1494
|
|
|
1495 goto invalid_levels;
|
|
464
|
1496 }
|
|
|
1497
|
|
|
1498 goto invalid_levels;
|
|
|
1499 }
|
|
|
1500
|
|
|
1501 if (cache->path->len < 10 + 3) {
|
|
|
1502 continue;
|
|
|
1503 }
|
|
|
1504
|
|
|
1505 invalid_levels:
|
|
|
1506
|
|
|
1507 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
1508 "invalid \"levels\" \"%V\"", &value[i]);
|
|
|
1509 return NGX_CONF_ERROR;
|
|
|
1510 }
|
|
|
1511
|
|
|
1512 if (ngx_strncmp(value[i].data, "keys_zone=", 10) == 0) {
|
|
|
1513
|
|
|
1514 name.data = value[i].data + 10;
|
|
|
1515
|
|
|
1516 p = (u_char *) ngx_strchr(name.data, ':');
|
|
|
1517
|
|
|
1518 if (p) {
|
|
480
|
1519 *p = '\0';
|
|
|
1520
|
|
464
|
1521 name.len = p - name.data;
|
|
|
1522
|
|
|
1523 p++;
|
|
|
1524
|
|
|
1525 s.len = value[i].data + value[i].len - p;
|
|
|
1526 s.data = p;
|
|
|
1527
|
|
|
1528 size = ngx_parse_size(&s);
|
|
|
1529 if (size > 8191) {
|
|
|
1530 continue;
|
|
|
1531 }
|
|
|
1532 }
|
|
|
1533
|
|
|
1534 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
1535 "invalid keys zone size \"%V\"", &value[i]);
|
|
|
1536 return NGX_CONF_ERROR;
|
|
|
1537 }
|
|
|
1538
|
|
|
1539 if (ngx_strncmp(value[i].data, "inactive=", 9) == 0) {
|
|
|
1540
|
|
|
1541 s.len = value[i].len - 9;
|
|
|
1542 s.data = value[i].data + 9;
|
|
|
1543
|
|
|
1544 inactive = ngx_parse_time(&s, 1);
|
|
|
1545 if (inactive < 0) {
|
|
|
1546 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
1547 "invalid inactive value \"%V\"", &value[i]);
|
|
|
1548 return NGX_CONF_ERROR;
|
|
|
1549 }
|
|
|
1550
|
|
|
1551 continue;
|
|
|
1552 }
|
|
|
1553
|
|
468
|
1554 if (ngx_strncmp(value[i].data, "max_size=", 9) == 0) {
|
|
464
|
1555
|
|
468
|
1556 s.len = value[i].len - 9;
|
|
|
1557 s.data = value[i].data + 9;
|
|
464
|
1558
|
|
468
|
1559 max_size = ngx_parse_offset(&s);
|
|
|
1560 if (max_size < 0) {
|
|
464
|
1561 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
468
|
1562 "invalid max_size value \"%V\"", &value[i]);
|
|
464
|
1563 return NGX_CONF_ERROR;
|
|
|
1564 }
|
|
|
1565
|
|
|
1566 continue;
|
|
|
1567 }
|
|
|
1568
|
|
|
1569 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
1570 "invalid parameter \"%V\"", &value[i]);
|
|
|
1571 return NGX_CONF_ERROR;
|
|
|
1572 }
|
|
|
1573
|
|
|
1574 if (name.len == 0 || size == 0) {
|
|
|
1575 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
1576 "\"%V\" must have \"keys_zone\" parameter",
|
|
|
1577 &cmd->name);
|
|
|
1578 return NGX_CONF_ERROR;
|
|
|
1579 }
|
|
|
1580
|
|
468
|
1581 cache->path->manager = ngx_http_file_cache_manager;
|
|
514
|
1582 cache->path->loader = ngx_http_file_cache_loader;
|
|
464
|
1583 cache->path->data = cache;
|
|
|
1584
|
|
|
1585 if (ngx_add_path(cf, &cache->path) != NGX_OK) {
|
|
|
1586 return NGX_CONF_ERROR;
|
|
|
1587 }
|
|
|
1588
|
|
|
1589 cache->shm_zone = ngx_shared_memory_add(cf, &name, size, cmd->post);
|
|
|
1590 if (cache->shm_zone == NULL) {
|
|
|
1591 return NGX_CONF_ERROR;
|
|
|
1592 }
|
|
|
1593
|
|
|
1594 if (cache->shm_zone->data) {
|
|
|
1595 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
1596 "duplicate zone \"%V\"", &name);
|
|
|
1597 return NGX_CONF_ERROR;
|
|
|
1598 }
|
|
|
1599
|
|
|
1600
|
|
|
1601 cache->shm_zone->init = ngx_http_file_cache_init;
|
|
|
1602 cache->shm_zone->data = cache;
|
|
|
1603
|
|
|
1604 cache->inactive = inactive;
|
|
468
|
1605 cache->max_size = max_size;
|
|
464
|
1606
|
|
|
1607 return NGX_CONF_OK;
|
|
|
1608 }
|
|
26
|
1609
|
|
|
1610
|
|
464
|
1611 char *
|
|
|
1612 ngx_http_file_cache_valid_set_slot(ngx_conf_t *cf, ngx_command_t *cmd,
|
|
|
1613 void *conf)
|
|
0
|
1614 {
|
|
464
|
1615 char *p = conf;
|
|
0
|
1616
|
|
464
|
1617 time_t valid;
|
|
|
1618 ngx_str_t *value;
|
|
|
1619 ngx_uint_t i, n, status;
|
|
|
1620 ngx_array_t **a;
|
|
|
1621 ngx_http_cache_valid_t *v;
|
|
|
1622 static ngx_uint_t statuses[] = { 200, 301, 302 };
|
|
26
|
1623
|
|
464
|
1624 a = (ngx_array_t **) (p + cmd->offset);
|
|
0
|
1625
|
|
464
|
1626 if (*a == NGX_CONF_UNSET_PTR) {
|
|
|
1627 *a = ngx_array_create(cf->pool, 1, sizeof(ngx_http_cache_valid_t));
|
|
|
1628 if (*a == NULL) {
|
|
|
1629 return NGX_CONF_ERROR;
|
|
|
1630 }
|
|
|
1631 }
|
|
0
|
1632
|
|
464
|
1633 value = cf->args->elts;
|
|
|
1634 n = cf->args->nelts - 1;
|
|
0
|
1635
|
|
464
|
1636 valid = ngx_parse_time(&value[n], 1);
|
|
|
1637 if (valid < 0) {
|
|
|
1638 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
1639 "invalid time value \"%V\"", &value[n]);
|
|
|
1640 return NGX_CONF_ERROR;
|
|
0
|
1641 }
|
|
|
1642
|
|
464
|
1643 if (n == 1) {
|
|
|
1644
|
|
|
1645 for (i = 0; i < 3; i++) {
|
|
|
1646 v = ngx_array_push(*a);
|
|
|
1647 if (v == NULL) {
|
|
|
1648 return NGX_CONF_ERROR;
|
|
|
1649 }
|
|
|
1650
|
|
|
1651 v->status = statuses[i];
|
|
|
1652 v->valid = valid;
|
|
|
1653 }
|
|
|
1654
|
|
|
1655 return NGX_CONF_OK;
|
|
0
|
1656 }
|
|
|
1657
|
|
464
|
1658 for (i = 1; i < n; i++) {
|
|
|
1659
|
|
|
1660 if (ngx_strcmp(value[i].data, "any") == 0) {
|
|
|
1661
|
|
|
1662 status = 0;
|
|
|
1663
|
|
|
1664 } else {
|
|
0
|
1665
|
|
464
|
1666 status = ngx_atoi(value[i].data, value[i].len);
|
|
|
1667 if (status < 100) {
|
|
|
1668 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
1669 "invalid status \"%V\"", &value[i]);
|
|
|
1670 return NGX_CONF_ERROR;
|
|
|
1671 }
|
|
|
1672 }
|
|
|
1673
|
|
|
1674 v = ngx_array_push(*a);
|
|
|
1675 if (v == NULL) {
|
|
|
1676 return NGX_CONF_ERROR;
|
|
|
1677 }
|
|
|
1678
|
|
|
1679 v->status = status;
|
|
|
1680 v->valid = valid;
|
|
|
1681 }
|
|
|
1682
|
|
|
1683 return NGX_CONF_OK;
|
|
0
|
1684 }
|
