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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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542
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15 static ssize_t ngx_http_file_cache_aio_read(ngx_http_request_t *r,
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16 ngx_http_cache_t *c);
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518
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17 #if (NGX_HAVE_FILE_AIO)
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18 static void ngx_http_cache_aio_event_handler(ngx_event_t *ev);
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19 #endif
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468
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20 static ngx_int_t ngx_http_file_cache_exists(ngx_http_file_cache_t *cache,
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21 ngx_http_cache_t *c);
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464
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22 static ngx_http_file_cache_node_t *
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23 ngx_http_file_cache_lookup(ngx_http_file_cache_t *cache, u_char *key);
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24 static void ngx_http_file_cache_rbtree_insert_value(ngx_rbtree_node_t *temp,
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25 ngx_rbtree_node_t *node, ngx_rbtree_node_t *sentinel);
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26 static void ngx_http_file_cache_cleanup(void *data);
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468
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27 static time_t ngx_http_file_cache_forced_expire(ngx_http_file_cache_t *cache);
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28 static time_t ngx_http_file_cache_expire(ngx_http_file_cache_t *cache);
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29 static void ngx_http_file_cache_delete(ngx_http_file_cache_t *cache,
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30 ngx_queue_t *q, u_char *name);
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31 static ngx_int_t
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32 ngx_http_file_cache_manager_sleep(ngx_http_file_cache_t *cache);
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33 static ngx_int_t ngx_http_file_cache_noop(ngx_tree_ctx_t *ctx,
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464
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34 ngx_str_t *path);
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468
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35 static ngx_int_t ngx_http_file_cache_manage_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_file(ngx_tree_ctx_t *ctx,
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38 ngx_str_t *path);
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39 static ngx_int_t ngx_http_file_cache_add(ngx_http_file_cache_t *cache,
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40 ngx_http_cache_t *c);
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41 static ngx_int_t ngx_http_file_cache_delete_file(ngx_tree_ctx_t *ctx,
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464
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42 ngx_str_t *path);
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0
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43
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44
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502
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45 ngx_str_t ngx_http_cache_status[] = {
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46 ngx_string("MISS"),
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47 ngx_string("EXPIRED"),
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48 ngx_string("STALE"),
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49 ngx_string("UPDATING"),
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50 ngx_string("HIT")
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51 };
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52
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53
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464
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54 static u_char ngx_http_file_cache_key[] = { LF, 'K', 'E', 'Y', ':', ' ' };
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0
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55
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56
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464
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57 static ngx_int_t
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58 ngx_http_file_cache_init(ngx_shm_zone_t *shm_zone, void *data)
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0
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59 {
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464
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60 ngx_http_file_cache_t *ocache = data;
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0
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61
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468
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62 size_t len;
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514
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63 ngx_uint_t n;
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464
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64 ngx_http_file_cache_t *cache;
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0
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65
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464
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66 cache = shm_zone->data;
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67
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464
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68 if (ocache) {
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69 if (ngx_strcmp(cache->path->name.data, ocache->path->name.data) != 0) {
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70 ngx_log_error(NGX_LOG_EMERG, shm_zone->shm.log, 0,
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71 "cache \"%V\" uses the \"%V\" cache path "
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72 "while previously it used the \"%V\" cache path",
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480
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73 &shm_zone->shm.name, &cache->path->name,
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464
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74 &ocache->path->name);
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0
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75
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76 return NGX_ERROR;
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77 }
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78
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514
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79 for (n = 0; n < 3; n++) {
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80 if (cache->path->level[n] != ocache->path->level[n]) {
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81 ngx_log_error(NGX_LOG_EMERG, shm_zone->shm.log, 0,
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82 "cache \"%V\" had previously different levels",
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83 &shm_zone->shm.name);
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84 return NGX_ERROR;
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85 }
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86 }
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87
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480
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88 cache->sh = ocache->sh;
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89
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464
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90 cache->shpool = ocache->shpool;
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468
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91 cache->bsize = ocache->bsize;
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92
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93 cache->max_size /= cache->bsize;
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464
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94
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514
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95 if (!cache->sh->cold || cache->sh->loading) {
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96 cache->path->loader = NULL;
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97 }
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98
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464
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99 return NGX_OK;
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100 }
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101
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102 cache->shpool = (ngx_slab_pool_t *) shm_zone->shm.addr;
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103
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480
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104 if (shm_zone->shm.exists) {
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105 cache->sh = cache->shpool->data;
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106 cache->bsize = ngx_fs_bsize(cache->path->name.data);
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107
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108 return NGX_OK;
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464
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109 }
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110
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480
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111 cache->sh = ngx_slab_alloc(cache->shpool, sizeof(ngx_http_file_cache_sh_t));
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112 if (cache->sh == NULL) {
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464
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113 return NGX_ERROR;
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114 }
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115
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480
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116 cache->shpool->data = cache->sh;
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117
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118 ngx_rbtree_init(&cache->sh->rbtree, &cache->sh->sentinel,
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464
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119 ngx_http_file_cache_rbtree_insert_value);
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120
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480
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121 ngx_queue_init(&cache->sh->queue);
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464
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122
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480
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123 cache->sh->cold = 1;
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124 cache->sh->loading = 0;
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480
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125 cache->sh->size = 0;
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468
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126
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127 cache->bsize = ngx_fs_bsize(cache->path->name.data);
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128
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129 cache->max_size /= cache->bsize;
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130
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480
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131 len = sizeof(" in cache keys zone \"\"") + shm_zone->shm.name.len;
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468
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132
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133 cache->shpool->log_ctx = ngx_slab_alloc(cache->shpool, len);
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134 if (cache->shpool->log_ctx == NULL) {
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135 return NGX_ERROR;
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136 }
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137
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138 ngx_sprintf(cache->shpool->log_ctx, " in cache keys zone \"%V\"%Z",
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480
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139 &shm_zone->shm.name);
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464
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140
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141 return NGX_OK;
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142 }
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143
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144
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145 void
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146 ngx_http_file_cache_create_key(ngx_http_request_t *r)
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147 {
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148 size_t len;
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149 ngx_str_t *key;
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150 ngx_uint_t i;
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151 ngx_md5_t md5;
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152 ngx_http_cache_t *c;
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153
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154 c = r->cache;
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155
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156 len = 0;
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157
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158 ngx_crc32_init(c->crc32);
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159 ngx_md5_init(&md5);
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160
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161 key = c->keys.elts;
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162 for (i = 0; i < c->keys.nelts; i++) {
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163 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
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164 "http cache key: \"%V\"", &key[i]);
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165
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166 len += key[i].len;
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167
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168 ngx_crc32_update(&c->crc32, key[i].data, key[i].len);
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169 ngx_md5_update(&md5, key[i].data, key[i].len);
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170 }
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171
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172 c->header_start = sizeof(ngx_http_file_cache_header_t)
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173 + sizeof(ngx_http_file_cache_key) + len + 1;
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174
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175 ngx_crc32_final(c->crc32);
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176 ngx_md5_final(c->key, &md5);
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177 }
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178
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179
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180 ngx_int_t
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181 ngx_http_file_cache_open(ngx_http_request_t *r)
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182 {
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518
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183 u_char *p;
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184 ngx_int_t rc, rv;
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185 ngx_uint_t cold, test;
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186 ngx_path_t *path;
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187 ngx_http_cache_t *c;
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188 ngx_pool_cleanup_t *cln;
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189 ngx_open_file_info_t of;
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190 ngx_http_file_cache_t *cache;
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191 ngx_http_core_loc_conf_t *clcf;
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464
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192
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193 c = r->cache;
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518
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194
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195 if (c->buf) {
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196 return ngx_http_file_cache_read(r, c);
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197 }
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198
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464
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199 cache = c->file_cache;
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200
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201 cln = ngx_pool_cleanup_add(r->pool, 0);
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202 if (cln == NULL) {
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203 return NGX_ERROR;
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204 }
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205
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468
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206 rc = ngx_http_file_cache_exists(cache, c);
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464
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207
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498
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208 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
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209 "http file cache exists: %i e:%d", rc, c->exists);
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464
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210
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211 if (rc == NGX_ERROR) {
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212 return rc;
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213 }
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214
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215 cln->handler = ngx_http_file_cache_cleanup;
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216 cln->data = c;
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217
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218 if (rc == NGX_AGAIN) {
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518
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219 return NGX_HTTP_CACHE_SCARCE;
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464
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220 }
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221
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480
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222 cold = cache->sh->cold;
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464
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223
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224 if (rc == NGX_OK) {
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225
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226 if (c->error) {
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227 return c->error;
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228 }
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229
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230 c->temp_file = 1;
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231 test = c->exists ? 1 : 0;
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232 rv = NGX_DECLINED;
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233
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234 } else { /* rc == NGX_DECLINED */
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235
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236 if (c->min_uses > 1) {
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237
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238 if (!cold) {
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518
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239 return NGX_HTTP_CACHE_SCARCE;
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0
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240 }
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241
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464
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242 test = 1;
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518
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243 rv = NGX_HTTP_CACHE_SCARCE;
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464
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244
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245 } else {
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246 c->temp_file = 1;
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247 test = cold ? 1 : 0;
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248 rv = NGX_DECLINED;
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0
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249 }
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250 }
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251
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464
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252 path = cache->path;
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253
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254 c->file.name.len = path->name.len + 1 + path->len
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255 + 2 * NGX_HTTP_CACHE_KEY_LEN;
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256
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257 c->file.name.data = ngx_pnalloc(r->pool, c->file.name.len + 1);
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258 if (c->file.name.data == NULL) {
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259 return NGX_ERROR;
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260 }
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261
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262 ngx_memcpy(c->file.name.data, path->name.data, path->name.len);
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263
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264 p = c->file.name.data + path->name.len + 1 + path->len;
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265 p = ngx_hex_dump(p, c->key, NGX_HTTP_CACHE_KEY_LEN);
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266 *p = '\0';
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267
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268 ngx_create_hashed_filename(path, c->file.name.data, c->file.name.len);
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269
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270 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, ngx_cycle->log, 0,
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271 "cache file: \"%s\"", c->file.name.data);
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272
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273 if (!test) {
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274 return NGX_DECLINED;
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275 }
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276
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277 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
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278
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279 ngx_memzero(&of, sizeof(ngx_open_file_info_t));
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0
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280
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464
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281 of.uniq = c->uniq;
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282 of.valid = clcf->open_file_cache_valid;
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283 of.min_uses = clcf->open_file_cache_min_uses;
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284 of.events = clcf->open_file_cache_events;
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285 of.directio = NGX_OPEN_FILE_DIRECTIO_OFF;
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532
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286 of.read_ahead = clcf->read_ahead;
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464
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287
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288 if (ngx_open_cached_file(clcf->open_file_cache, &c->file.name, &of, r->pool)
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289 != NGX_OK)
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290 {
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291 switch (of.err) {
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292
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293 case 0:
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294 return NGX_ERROR;
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295
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296 case NGX_ENOENT:
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297 case NGX_ENOTDIR:
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298 return rv;
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299
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300 default:
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301 ngx_log_error(NGX_LOG_CRIT, r->connection->log, of.err,
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302 ngx_open_file_n " \"%s\" failed", c->file.name.data);
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303 return NGX_ERROR;
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304 }
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305 }
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306
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307 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
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308 "http file cache fd: %d", of.fd);
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309
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310 c->file.fd = of.fd;
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466
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311 c->file.log = r->connection->log;
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518
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312 c->uniq = of.uniq;
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313 c->length = of.size;
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464
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314
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315 c->buf = ngx_create_temp_buf(r->pool, c->body_start);
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316 if (c->buf == NULL) {
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317 return NGX_ERROR;
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318 }
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319
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518
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320 return ngx_http_file_cache_read(r, c);
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321 }
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322
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323
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324 static ngx_int_t
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325 ngx_http_file_cache_read(ngx_http_request_t *r, ngx_http_cache_t *c)
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326 {
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327 time_t now;
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328 ssize_t n;
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329 ngx_int_t rc;
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330 ngx_http_file_cache_t *cache;
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331 ngx_http_file_cache_header_t *h;
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332
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333 c = r->cache;
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334
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542
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335 n = ngx_http_file_cache_aio_read(r, c);
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518
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336
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542
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337 if (n < 0) {
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0
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338 return n;
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339 }
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340
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464
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341 if ((size_t) n <= c->header_start) {
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342 ngx_log_error(NGX_LOG_CRIT, r->connection->log, 0,
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26
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343 "cache file \"%s\" is too small", c->file.name.data);
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0
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344 return NGX_ERROR;
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345 }
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346
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464
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347 h = (ngx_http_file_cache_header_t *) c->buf->pos;
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0
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348
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464
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349 if (h->crc32 != c->crc32 || (size_t) h->header_start != c->header_start) {
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350 ngx_log_error(NGX_LOG_CRIT, r->connection->log, 0,
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351 "cache file \"%s\" has md5 collision", c->file.name.data);
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0
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352 return NGX_DECLINED;
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353 }
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354
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464
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355 c->buf->last += n;
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26
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356
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464
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357 c->valid_sec = h->valid_sec;
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358 c->last_modified = h->last_modified;
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359 c->date = h->date;
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360 c->valid_msec = h->valid_msec;
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361 c->body_start = h->body_start;
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26
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362
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464
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363 r->cached = 1;
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364
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518
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365 cache = c->file_cache;
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366
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367 if (cache->sh->cold) {
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464
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368
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369 ngx_shmtx_lock(&cache->shpool->mutex);
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26
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370
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468
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371 if (!c->node->exists) {
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372 c->node->uses = 1;
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373 c->node->body_start = c->body_start;
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374 c->node->exists = 1;
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518
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375 c->node->uniq = c->uniq;
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|
468
|
376
|
|
480
|
377 cache->sh->size += (c->length + cache->bsize - 1) / cache->bsize;
|
|
468
|
378 }
|
|
464
|
379
|
|
|
380 ngx_shmtx_unlock(&cache->shpool->mutex);
|
|
0
|
381 }
|
|
|
382
|
|
468
|
383 now = ngx_time();
|
|
|
384
|
|
464
|
385 if (c->valid_sec < now) {
|
|
0
|
386
|
|
498
|
387 ngx_shmtx_lock(&cache->shpool->mutex);
|
|
0
|
388
|
|
498
|
389 if (c->node->updating) {
|
|
|
390 rc = NGX_HTTP_CACHE_UPDATING;
|
|
464
|
391
|
|
498
|
392 } else {
|
|
|
393 c->node->updating = 1;
|
|
|
394 rc = NGX_HTTP_CACHE_STALE;
|
|
|
395 }
|
|
|
396
|
|
|
397 ngx_shmtx_unlock(&cache->shpool->mutex);
|
|
|
398
|
|
|
399 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
400 "http file cache expired: %i %T %T",
|
|
|
401 rc, c->valid_sec, now);
|
|
|
402
|
|
|
403 return rc;
|
|
0
|
404 }
|
|
|
405
|
|
464
|
406 return NGX_OK;
|
|
|
407 }
|
|
|
408
|
|
|
409
|
|
542
|
410 static ssize_t
|
|
|
411 ngx_http_file_cache_aio_read(ngx_http_request_t *r, ngx_http_cache_t *c)
|
|
|
412 {
|
|
518
|
413 #if (NGX_HAVE_FILE_AIO)
|
|
542
|
414 ssize_t n;
|
|
|
415 ngx_http_core_loc_conf_t *clcf;
|
|
518
|
416
|
|
542
|
417 if (!ngx_file_aio) {
|
|
|
418 goto noaio;
|
|
|
419 }
|
|
|
420
|
|
|
421 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
422
|
|
|
423 if (!clcf->aio) {
|
|
|
424 goto noaio;
|
|
|
425 }
|
|
|
426
|
|
|
427 n = ngx_file_aio_read(&c->file, c->buf->pos, c->body_start, 0, r->pool);
|
|
|
428
|
|
|
429 if (n != NGX_AGAIN) {
|
|
|
430 return n;
|
|
|
431 }
|
|
|
432
|
|
|
433 c->file.aio->data = r;
|
|
|
434 c->file.aio->handler = ngx_http_cache_aio_event_handler;
|
|
|
435
|
|
|
436 r->main->blocked++;
|
|
|
437 r->aio = 1;
|
|
|
438
|
|
|
439 return NGX_AGAIN;
|
|
|
440
|
|
|
441 noaio:
|
|
|
442
|
|
|
443 #endif
|
|
|
444
|
|
|
445 return ngx_read_file(&c->file, c->buf->pos, c->body_start, 0);
|
|
|
446 }
|
|
|
447
|
|
|
448
|
|
|
449 #if (NGX_HAVE_FILE_AIO)
|
|
518
|
450
|
|
|
451 static void
|
|
|
452 ngx_http_cache_aio_event_handler(ngx_event_t *ev)
|
|
|
453 {
|
|
|
454 ngx_event_aio_t *aio;
|
|
|
455 ngx_http_request_t *r;
|
|
|
456
|
|
|
457 aio = ev->data;
|
|
|
458 r = aio->data;
|
|
|
459
|
|
|
460 r->main->blocked--;
|
|
|
461 r->aio = 0;
|
|
|
462
|
|
|
463 r->connection->write->handler(r->connection->write);
|
|
|
464 }
|
|
|
465
|
|
|
466 #endif
|
|
|
467
|
|
|
468
|
|
464
|
469 static ngx_int_t
|
|
468
|
470 ngx_http_file_cache_exists(ngx_http_file_cache_t *cache, ngx_http_cache_t *c)
|
|
464
|
471 {
|
|
|
472 ngx_int_t rc;
|
|
|
473 ngx_http_file_cache_node_t *fcn;
|
|
|
474
|
|
|
475 ngx_shmtx_lock(&cache->shpool->mutex);
|
|
|
476
|
|
468
|
477 fcn = ngx_http_file_cache_lookup(cache, c->key);
|
|
464
|
478
|
|
|
479 if (fcn) {
|
|
|
480 ngx_queue_remove(&fcn->queue);
|
|
|
481
|
|
|
482 if (fcn->error) {
|
|
|
483
|
|
|
484 if (fcn->valid_sec < ngx_time()) {
|
|
|
485 goto renew;
|
|
|
486 }
|
|
|
487
|
|
|
488 rc = NGX_OK;
|
|
|
489
|
|
|
490 goto done;
|
|
|
491 }
|
|
|
492
|
|
|
493 fcn->uses++;
|
|
|
494 fcn->count++;
|
|
|
495
|
|
|
496 if (fcn->exists) {
|
|
|
497
|
|
468
|
498 c->exists = fcn->exists;
|
|
|
499 c->body_start = fcn->body_start;
|
|
464
|
500
|
|
|
501 rc = NGX_OK;
|
|
|
502
|
|
|
503 goto done;
|
|
|
504 }
|
|
|
505
|
|
468
|
506 if (fcn->uses >= c->min_uses) {
|
|
464
|
507
|
|
468
|
508 c->exists = fcn->exists;
|
|
|
509 c->body_start = fcn->body_start;
|
|
464
|
510
|
|
|
511 rc = NGX_OK;
|
|
|
512
|
|
|
513 } else {
|
|
|
514 rc = NGX_AGAIN;
|
|
|
515 }
|
|
|
516
|
|
|
517 goto done;
|
|
|
518 }
|
|
|
519
|
|
|
520 fcn = ngx_slab_alloc_locked(cache->shpool,
|
|
|
521 sizeof(ngx_http_file_cache_node_t));
|
|
|
522 if (fcn == NULL) {
|
|
|
523 ngx_shmtx_unlock(&cache->shpool->mutex);
|
|
|
524
|
|
478
|
525 (void) ngx_http_file_cache_forced_expire(cache);
|
|
464
|
526
|
|
|
527 ngx_shmtx_lock(&cache->shpool->mutex);
|
|
|
528
|
|
|
529 fcn = ngx_slab_alloc_locked(cache->shpool,
|
|
|
530 sizeof(ngx_http_file_cache_node_t));
|
|
|
531 if (fcn == NULL) {
|
|
|
532 rc = NGX_ERROR;
|
|
|
533 goto failed;
|
|
|
534 }
|
|
|
535 }
|
|
|
536
|
|
468
|
537 ngx_memcpy((u_char *) &fcn->node.key, c->key, sizeof(ngx_rbtree_key_t));
|
|
464
|
538
|
|
468
|
539 ngx_memcpy(fcn->key, &c->key[sizeof(ngx_rbtree_key_t)],
|
|
464
|
540 NGX_HTTP_CACHE_KEY_LEN - sizeof(ngx_rbtree_key_t));
|
|
|
541
|
|
480
|
542 ngx_rbtree_insert(&cache->sh->rbtree, &fcn->node);
|
|
464
|
543
|
|
|
544 renew:
|
|
|
545
|
|
|
546 rc = NGX_DECLINED;
|
|
|
547
|
|
|
548 fcn->uses = 1;
|
|
|
549 fcn->count = 1;
|
|
|
550 fcn->valid_msec = 0;
|
|
|
551 fcn->error = 0;
|
|
|
552 fcn->exists = 0;
|
|
|
553 fcn->valid_sec = 0;
|
|
|
554 fcn->uniq = 0;
|
|
|
555 fcn->body_start = 0;
|
|
470
|
556 fcn->length = 0;
|
|
464
|
557
|
|
|
558 done:
|
|
|
559
|
|
|
560 fcn->expire = ngx_time() + cache->inactive;
|
|
|
561
|
|
480
|
562 ngx_queue_insert_head(&cache->sh->queue, &fcn->queue);
|
|
464
|
563
|
|
468
|
564 c->uniq = fcn->uniq;
|
|
|
565 c->error = fcn->error;
|
|
|
566 c->node = fcn;
|
|
464
|
567
|
|
|
568 failed:
|
|
|
569
|
|
|
570 ngx_shmtx_unlock(&cache->shpool->mutex);
|
|
|
571
|
|
|
572 return rc;
|
|
|
573 }
|
|
|
574
|
|
|
575
|
|
|
576 static ngx_http_file_cache_node_t *
|
|
|
577 ngx_http_file_cache_lookup(ngx_http_file_cache_t *cache, u_char *key)
|
|
|
578 {
|
|
|
579 ngx_int_t rc;
|
|
|
580 ngx_rbtree_key_t node_key;
|
|
|
581 ngx_rbtree_node_t *node, *sentinel;
|
|
|
582 ngx_http_file_cache_node_t *fcn;
|
|
|
583
|
|
|
584 ngx_memcpy((u_char *) &node_key, key, sizeof(ngx_rbtree_key_t));
|
|
|
585
|
|
480
|
586 node = cache->sh->rbtree.root;
|
|
|
587 sentinel = cache->sh->rbtree.sentinel;
|
|
464
|
588
|
|
|
589 while (node != sentinel) {
|
|
|
590
|
|
|
591 if (node_key < node->key) {
|
|
|
592 node = node->left;
|
|
|
593 continue;
|
|
|
594 }
|
|
|
595
|
|
|
596 if (node_key > node->key) {
|
|
|
597 node = node->right;
|
|
|
598 continue;
|
|
|
599 }
|
|
|
600
|
|
|
601 /* node_key == node->key */
|
|
|
602
|
|
|
603 do {
|
|
|
604 fcn = (ngx_http_file_cache_node_t *) node;
|
|
|
605
|
|
|
606 rc = ngx_memcmp(&key[sizeof(ngx_rbtree_key_t)], fcn->key,
|
|
|
607 NGX_HTTP_CACHE_KEY_LEN - sizeof(ngx_rbtree_key_t));
|
|
|
608
|
|
|
609 if (rc == 0) {
|
|
|
610 return fcn;
|
|
|
611 }
|
|
|
612
|
|
|
613 node = (rc < 0) ? node->left : node->right;
|
|
|
614
|
|
|
615 } while (node != sentinel && node_key == node->key);
|
|
|
616
|
|
|
617 break;
|
|
|
618 }
|
|
|
619
|
|
|
620 /* not found */
|
|
|
621
|
|
|
622 return NULL;
|
|
|
623 }
|
|
|
624
|
|
|
625
|
|
|
626 static void
|
|
|
627 ngx_http_file_cache_rbtree_insert_value(ngx_rbtree_node_t *temp,
|
|
|
628 ngx_rbtree_node_t *node, ngx_rbtree_node_t *sentinel)
|
|
|
629 {
|
|
|
630 ngx_rbtree_node_t **p;
|
|
|
631 ngx_http_file_cache_node_t *cn, *cnt;
|
|
|
632
|
|
|
633 for ( ;; ) {
|
|
|
634
|
|
|
635 if (node->key < temp->key) {
|
|
|
636
|
|
|
637 p = &temp->left;
|
|
|
638
|
|
|
639 } else if (node->key > temp->key) {
|
|
|
640
|
|
|
641 p = &temp->right;
|
|
|
642
|
|
|
643 } else { /* node->key == temp->key */
|
|
|
644
|
|
|
645 cn = (ngx_http_file_cache_node_t *) node;
|
|
|
646 cnt = (ngx_http_file_cache_node_t *) temp;
|
|
|
647
|
|
|
648 p = (ngx_memcmp(cn->key, cnt->key,
|
|
|
649 NGX_HTTP_CACHE_KEY_LEN - sizeof(ngx_rbtree_key_t))
|
|
|
650 < 0)
|
|
|
651 ? &temp->left : &temp->right;
|
|
|
652 }
|
|
|
653
|
|
|
654 if (*p == sentinel) {
|
|
|
655 break;
|
|
|
656 }
|
|
|
657
|
|
|
658 temp = *p;
|
|
|
659 }
|
|
|
660
|
|
|
661 *p = node;
|
|
|
662 node->parent = temp;
|
|
|
663 node->left = sentinel;
|
|
|
664 node->right = sentinel;
|
|
|
665 ngx_rbt_red(node);
|
|
|
666 }
|
|
|
667
|
|
|
668
|
|
|
669 void
|
|
|
670 ngx_http_file_cache_set_header(ngx_http_request_t *r, u_char *buf)
|
|
|
671 {
|
|
|
672 ngx_http_file_cache_header_t *h = (ngx_http_file_cache_header_t *) buf;
|
|
|
673
|
|
|
674 u_char *p;
|
|
|
675 ngx_str_t *key;
|
|
|
676 ngx_uint_t i;
|
|
|
677 ngx_http_cache_t *c;
|
|
|
678
|
|
|
679 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
680 "http file cache set header");
|
|
|
681
|
|
|
682 c = r->cache;
|
|
|
683
|
|
|
684 h->valid_sec = c->valid_sec;
|
|
|
685 h->last_modified = c->last_modified;
|
|
|
686 h->date = c->date;
|
|
|
687 h->crc32 = c->crc32;
|
|
|
688 h->valid_msec = (u_short) c->valid_msec;
|
|
|
689 h->header_start = (u_short) c->header_start;
|
|
|
690 h->body_start = (u_short) c->body_start;
|
|
|
691
|
|
|
692 p = buf + sizeof(ngx_http_file_cache_header_t);
|
|
|
693
|
|
|
694 p = ngx_cpymem(p, ngx_http_file_cache_key, sizeof(ngx_http_file_cache_key));
|
|
|
695
|
|
|
696 key = c->keys.elts;
|
|
|
697 for (i = 0; i < c->keys.nelts; i++) {
|
|
|
698 p = ngx_copy(p, key[i].data, key[i].len);
|
|
|
699 }
|
|
|
700
|
|
|
701 *p = LF;
|
|
|
702 }
|
|
|
703
|
|
|
704
|
|
|
705 void
|
|
|
706 ngx_http_file_cache_update(ngx_http_request_t *r, ngx_temp_file_t *tf)
|
|
|
707 {
|
|
536
|
708 off_t size, length;
|
|
464
|
709 ngx_int_t rc;
|
|
|
710 ngx_file_uniq_t uniq;
|
|
|
711 ngx_file_info_t fi;
|
|
|
712 ngx_http_cache_t *c;
|
|
|
713 ngx_ext_rename_file_t ext;
|
|
|
714 ngx_http_file_cache_t *cache;
|
|
|
715
|
|
|
716 c = r->cache;
|
|
|
717
|
|
|
718 if (c->updated) {
|
|
|
719 return;
|
|
|
720 }
|
|
|
721
|
|
|
722 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
723 "http file cache update");
|
|
|
724
|
|
|
725 c->updated = 1;
|
|
|
726
|
|
|
727 cache = c->file_cache;
|
|
|
728
|
|
|
729 uniq = 0;
|
|
536
|
730 length = 0;
|
|
464
|
731
|
|
|
732 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
733 "http file cache rename: \"%s\" to \"%s\"",
|
|
|
734 tf->file.name.data, c->file.name.data);
|
|
|
735
|
|
|
736 ext.access = NGX_FILE_OWNER_ACCESS;
|
|
|
737 ext.path_access = NGX_FILE_OWNER_ACCESS;
|
|
|
738 ext.time = -1;
|
|
|
739 ext.create_path = 1;
|
|
|
740 ext.delete_file = 1;
|
|
|
741 ext.log = r->connection->log;
|
|
|
742
|
|
|
743 rc = ngx_ext_rename_file(&tf->file.name, &c->file.name, &ext);
|
|
|
744
|
|
|
745 if (rc == NGX_OK) {
|
|
|
746
|
|
|
747 if (ngx_fd_info(tf->file.fd, &fi) == NGX_FILE_ERROR) {
|
|
|
748 ngx_log_error(NGX_LOG_CRIT, r->connection->log, ngx_errno,
|
|
|
749 ngx_fd_info_n " \"%s\" failed", tf->file.name.data);
|
|
|
750
|
|
|
751 rc = NGX_ERROR;
|
|
|
752
|
|
|
753 } else {
|
|
|
754 uniq = ngx_file_uniq(&fi);
|
|
536
|
755 length = ngx_file_size(&fi);
|
|
464
|
756 }
|
|
|
757 }
|
|
|
758
|
|
536
|
759 size = (length + cache->bsize - 1) / cache->bsize;
|
|
468
|
760
|
|
464
|
761 ngx_shmtx_lock(&cache->shpool->mutex);
|
|
|
762
|
|
|
763 c->node->count--;
|
|
|
764 c->node->uniq = uniq;
|
|
|
765 c->node->body_start = c->body_start;
|
|
|
766
|
|
468
|
767 size = size - (c->node->length + cache->bsize - 1) / cache->bsize;
|
|
|
768
|
|
536
|
769 c->node->length = length;
|
|
468
|
770
|
|
480
|
771 cache->sh->size += size;
|
|
468
|
772
|
|
464
|
773 if (rc == NGX_OK) {
|
|
|
774 c->node->exists = 1;
|
|
|
775 }
|
|
|
776
|
|
498
|
777 c->node->updating = 0;
|
|
|
778
|
|
464
|
779 ngx_shmtx_unlock(&cache->shpool->mutex);
|
|
|
780 }
|
|
|
781
|
|
|
782
|
|
|
783 ngx_int_t
|
|
|
784 ngx_http_cache_send(ngx_http_request_t *r)
|
|
|
785 {
|
|
528
|
786 off_t size;
|
|
464
|
787 ngx_int_t rc;
|
|
|
788 ngx_buf_t *b;
|
|
|
789 ngx_chain_t out;
|
|
|
790 ngx_http_cache_t *c;
|
|
|
791
|
|
|
792 c = r->cache;
|
|
|
793
|
|
|
794 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
795 "http file cache send: %s", c->file.name.data);
|
|
|
796
|
|
|
797 /* we need to allocate all before the header would be sent */
|
|
|
798
|
|
|
799 b = ngx_pcalloc(r->pool, sizeof(ngx_buf_t));
|
|
|
800 if (b == NULL) {
|
|
|
801 return NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
802 }
|
|
|
803
|
|
|
804 b->file = ngx_pcalloc(r->pool, sizeof(ngx_file_t));
|
|
|
805 if (b->file == NULL) {
|
|
|
806 return NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
807 }
|
|
|
808
|
|
|
809 rc = ngx_http_send_header(r);
|
|
|
810
|
|
|
811 if (rc == NGX_ERROR || rc > NGX_OK || r->header_only) {
|
|
|
812 return rc;
|
|
|
813 }
|
|
|
814
|
|
528
|
815 size = c->length - c->body_start;
|
|
|
816 if (size == 0) {
|
|
|
817 return rc;
|
|
|
818 }
|
|
|
819
|
|
464
|
820 b->file_pos = c->body_start;
|
|
|
821 b->file_last = c->length;
|
|
|
822
|
|
528
|
823 b->in_file = size ? 1: 0;
|
|
464
|
824 b->last_buf = (r == r->main) ? 1: 0;
|
|
|
825 b->last_in_chain = 1;
|
|
|
826
|
|
|
827 b->file->fd = c->file.fd;
|
|
|
828 b->file->name = c->file.name;
|
|
|
829 b->file->log = r->connection->log;
|
|
|
830
|
|
|
831 out.buf = b;
|
|
|
832 out.next = NULL;
|
|
|
833
|
|
|
834 return ngx_http_output_filter(r, &out);
|
|
|
835 }
|
|
|
836
|
|
|
837
|
|
|
838 void
|
|
|
839 ngx_http_file_cache_free(ngx_http_request_t *r, ngx_temp_file_t *tf)
|
|
|
840 {
|
|
|
841 ngx_http_cache_t *c;
|
|
|
842 ngx_http_file_cache_t *cache;
|
|
|
843
|
|
|
844 c = r->cache;
|
|
|
845
|
|
|
846 if (c->updated) {
|
|
|
847 return;
|
|
|
848 }
|
|
|
849
|
|
|
850 c->updated = 1;
|
|
|
851
|
|
|
852 cache = c->file_cache;
|
|
|
853
|
|
|
854 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
855 "http file cache free");
|
|
|
856
|
|
|
857 ngx_shmtx_lock(&cache->shpool->mutex);
|
|
|
858
|
|
|
859 c->node->count--;
|
|
|
860
|
|
|
861 if (c->error) {
|
|
|
862 c->node->valid_sec = c->valid_sec;
|
|
|
863 c->node->valid_msec = c->valid_msec;
|
|
|
864 c->node->error = c->error;
|
|
|
865 }
|
|
|
866
|
|
498
|
867 c->node->updating = 0;
|
|
|
868
|
|
464
|
869 ngx_shmtx_unlock(&cache->shpool->mutex);
|
|
|
870
|
|
|
871 if (c->temp_file) {
|
|
|
872 if (tf && tf->file.fd != NGX_INVALID_FILE) {
|
|
|
873 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
874 "http file cache incomplete: \"%s\"",
|
|
|
875 tf->file.name.data);
|
|
|
876
|
|
|
877 if (ngx_delete_file(tf->file.name.data) == NGX_FILE_ERROR) {
|
|
|
878 ngx_log_error(NGX_LOG_CRIT, r->connection->log, ngx_errno,
|
|
|
879 ngx_delete_file_n " \"%s\" failed",
|
|
|
880 tf->file.name.data);
|
|
|
881 }
|
|
|
882 }
|
|
|
883 }
|
|
|
884 }
|
|
|
885
|
|
|
886
|
|
|
887 static void
|
|
|
888 ngx_http_file_cache_cleanup(void *data)
|
|
|
889 {
|
|
|
890 ngx_http_cache_t *c = data;
|
|
|
891
|
|
|
892 ngx_http_file_cache_t *cache;
|
|
|
893
|
|
|
894 if (c->updated) {
|
|
|
895 return;
|
|
|
896 }
|
|
|
897
|
|
|
898 c->updated = 1;
|
|
|
899
|
|
|
900 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->file.log, 0,
|
|
|
901 "http file cache cleanup");
|
|
|
902
|
|
|
903 if (c->error) {
|
|
|
904 return;
|
|
|
905 }
|
|
|
906
|
|
|
907 cache = c->file_cache;
|
|
|
908
|
|
|
909 ngx_shmtx_lock(&cache->shpool->mutex);
|
|
|
910
|
|
|
911 c->node->count--;
|
|
|
912
|
|
|
913 ngx_shmtx_unlock(&cache->shpool->mutex);
|
|
|
914 }
|
|
|
915
|
|
|
916
|
|
|
917 static time_t
|
|
468
|
918 ngx_http_file_cache_forced_expire(ngx_http_file_cache_t *cache)
|
|
|
919 {
|
|
|
920 u_char *name;
|
|
|
921 size_t len;
|
|
|
922 time_t wait;
|
|
|
923 ngx_uint_t tries;
|
|
|
924 ngx_path_t *path;
|
|
|
925 ngx_queue_t *q;
|
|
|
926 ngx_http_file_cache_node_t *fcn;
|
|
|
927
|
|
|
928 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, ngx_cycle->log, 0,
|
|
|
929 "http file cache forced expire");
|
|
|
930
|
|
|
931 path = cache->path;
|
|
|
932 len = path->name.len + 1 + path->len + 2 * NGX_HTTP_CACHE_KEY_LEN;
|
|
|
933
|
|
|
934 name = ngx_alloc(len + 1, ngx_cycle->log);
|
|
|
935 if (name == NULL) {
|
|
478
|
936 return 10;
|
|
468
|
937 }
|
|
|
938
|
|
|
939 ngx_memcpy(name, path->name.data, path->name.len);
|
|
|
940
|
|
478
|
941 wait = 10;
|
|
468
|
942 tries = 0;
|
|
|
943
|
|
|
944 ngx_shmtx_lock(&cache->shpool->mutex);
|
|
|
945
|
|
480
|
946 for (q = ngx_queue_last(&cache->sh->queue);
|
|
|
947 q != ngx_queue_sentinel(&cache->sh->queue);
|
|
468
|
948 q = ngx_queue_prev(q))
|
|
|
949 {
|
|
|
950 fcn = ngx_queue_data(q, ngx_http_file_cache_node_t, queue);
|
|
|
951
|
|
|
952 ngx_log_debug6(NGX_LOG_DEBUG_HTTP, ngx_cycle->log, 0,
|
|
|
953 "http file cache forced expire: #%d %d %02xd%02xd%02xd%02xd",
|
|
|
954 fcn->count, fcn->exists,
|
|
|
955 fcn->key[0], fcn->key[1], fcn->key[2], fcn->key[3]);
|
|
|
956
|
|
|
957 if (fcn->count) {
|
|
|
958
|
|
|
959 if (tries++ < 20) {
|
|
|
960 continue;
|
|
|
961 }
|
|
|
962
|
|
|
963 wait = 1;
|
|
|
964
|
|
|
965 break;
|
|
|
966 }
|
|
|
967
|
|
|
968 if (!fcn->exists) {
|
|
|
969
|
|
|
970 ngx_queue_remove(q);
|
|
480
|
971 ngx_rbtree_delete(&cache->sh->rbtree, &fcn->node);
|
|
468
|
972 ngx_slab_free_locked(cache->shpool, fcn);
|
|
|
973
|
|
|
974 break;
|
|
|
975 }
|
|
|
976
|
|
|
977 ngx_http_file_cache_delete(cache, q, name);
|
|
|
978
|
|
|
979 break;
|
|
|
980 }
|
|
|
981
|
|
|
982 ngx_shmtx_unlock(&cache->shpool->mutex);
|
|
|
983
|
|
|
984 ngx_free(name);
|
|
|
985
|
|
|
986 return wait;
|
|
|
987 }
|
|
|
988
|
|
|
989
|
|
|
990 static time_t
|
|
|
991 ngx_http_file_cache_expire(ngx_http_file_cache_t *cache)
|
|
464
|
992 {
|
|
|
993 u_char *name, *p;
|
|
|
994 size_t len;
|
|
|
995 time_t now, wait;
|
|
|
996 ngx_path_t *path;
|
|
|
997 ngx_queue_t *q;
|
|
|
998 ngx_http_file_cache_node_t *fcn;
|
|
|
999 u_char key[2 * NGX_HTTP_CACHE_KEY_LEN];
|
|
|
1000
|
|
|
1001 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, ngx_cycle->log, 0,
|
|
|
1002 "http file cache expire");
|
|
|
1003
|
|
|
1004 path = cache->path;
|
|
|
1005 len = path->name.len + 1 + path->len + 2 * NGX_HTTP_CACHE_KEY_LEN;
|
|
|
1006
|
|
468
|
1007 name = ngx_alloc(len + 1, ngx_cycle->log);
|
|
|
1008 if (name == NULL) {
|
|
478
|
1009 return 10;
|
|
468
|
1010 }
|
|
|
1011
|
|
|
1012 ngx_memcpy(name, path->name.data, path->name.len);
|
|
|
1013
|
|
464
|
1014 now = ngx_time();
|
|
|
1015
|
|
|
1016 ngx_shmtx_lock(&cache->shpool->mutex);
|
|
|
1017
|
|
|
1018 for ( ;; ) {
|
|
|
1019
|
|
480
|
1020 if (ngx_queue_empty(&cache->sh->queue)) {
|
|
478
|
1021 wait = 10;
|
|
464
|
1022 break;
|
|
|
1023 }
|
|
|
1024
|
|
480
|
1025 q = ngx_queue_last(&cache->sh->queue);
|
|
464
|
1026
|
|
|
1027 fcn = ngx_queue_data(q, ngx_http_file_cache_node_t, queue);
|
|
|
1028
|
|
468
|
1029 wait = fcn->expire - now;
|
|
464
|
1030
|
|
468
|
1031 if (wait > 0) {
|
|
478
|
1032 wait = wait > 10 ? 10 : wait;
|
|
468
|
1033 break;
|
|
464
|
1034 }
|
|
|
1035
|
|
|
1036 ngx_log_debug6(NGX_LOG_DEBUG_HTTP, ngx_cycle->log, 0,
|
|
|
1037 "http file cache expire: #%d %d %02xd%02xd%02xd%02xd",
|
|
|
1038 fcn->count, fcn->exists,
|
|
|
1039 fcn->key[0], fcn->key[1], fcn->key[2], fcn->key[3]);
|
|
|
1040
|
|
|
1041 if (fcn->count) {
|
|
|
1042
|
|
468
|
1043 p = ngx_hex_dump(key, (u_char *) &fcn->node.key,
|
|
|
1044 sizeof(ngx_rbtree_key_t));
|
|
464
|
1045
|
|
468
|
1046 len = NGX_HTTP_CACHE_KEY_LEN - sizeof(ngx_rbtree_key_t);
|
|
|
1047 (void) ngx_hex_dump(p, fcn->key, len);
|
|
464
|
1048
|
|
468
|
1049 /*
|
|
|
1050 * abnormally exited workers may leave locked cache entries,
|
|
|
1051 * and although it may be safe to remove them completely,
|
|
|
1052 * we prefer to remove them from inactive queue and rbtree
|
|
|
1053 * only, and to allow other leaks
|
|
|
1054 */
|
|
464
|
1055
|
|
468
|
1056 ngx_queue_remove(q);
|
|
480
|
1057 ngx_rbtree_delete(&cache->sh->rbtree, &fcn->node);
|
|
464
|
1058
|
|
468
|
1059 ngx_log_error(NGX_LOG_ALERT, ngx_cycle->log, 0,
|
|
466
|
1060 "ignore long locked inactive cache entry %*s, count:%d",
|
|
|
1061 2 * NGX_HTTP_CACHE_KEY_LEN, key, fcn->count);
|
|
464
|
1062
|
|
468
|
1063 continue;
|
|
464
|
1064 }
|
|
|
1065
|
|
|
1066 if (!fcn->exists) {
|
|
|
1067
|
|
|
1068 ngx_queue_remove(q);
|
|
480
|
1069 ngx_rbtree_delete(&cache->sh->rbtree, &fcn->node);
|
|
464
|
1070 ngx_slab_free_locked(cache->shpool, fcn);
|
|
|
1071
|
|
|
1072 continue;
|
|
|
1073 }
|
|
|
1074
|
|
468
|
1075 ngx_http_file_cache_delete(cache, q, name);
|
|
464
|
1076 }
|
|
|
1077
|
|
|
1078 ngx_shmtx_unlock(&cache->shpool->mutex);
|
|
|
1079
|
|
468
|
1080 ngx_free(name);
|
|
|
1081
|
|
464
|
1082 return wait;
|
|
|
1083 }
|
|
|
1084
|
|
|
1085
|
|
468
|
1086 static void
|
|
|
1087 ngx_http_file_cache_delete(ngx_http_file_cache_t *cache, ngx_queue_t *q,
|
|
|
1088 u_char *name)
|
|
|
1089 {
|
|
|
1090 u_char *p;
|
|
|
1091 size_t len;
|
|
|
1092 ngx_path_t *path;
|
|
|
1093 ngx_http_file_cache_node_t *fcn;
|
|
|
1094
|
|
|
1095 fcn = ngx_queue_data(q, ngx_http_file_cache_node_t, queue);
|
|
|
1096
|
|
480
|
1097 cache->sh->size -= (fcn->length + cache->bsize - 1) / cache->bsize;
|
|
468
|
1098
|
|
|
1099 path = cache->path;
|
|
|
1100
|
|
|
1101 p = name + path->name.len + 1 + path->len;
|
|
|
1102
|
|
|
1103 p = ngx_hex_dump(p, (u_char *) &fcn->node.key, sizeof(ngx_rbtree_key_t));
|
|
|
1104
|
|
|
1105 len = NGX_HTTP_CACHE_KEY_LEN - sizeof(ngx_rbtree_key_t);
|
|
|
1106 p = ngx_hex_dump(p, fcn->key, len);
|
|
|
1107 *p = '\0';
|
|
|
1108
|
|
|
1109 ngx_queue_remove(q);
|
|
|
1110
|
|
480
|
1111 ngx_rbtree_delete(&cache->sh->rbtree, &fcn->node);
|
|
468
|
1112
|
|
|
1113 ngx_slab_free_locked(cache->shpool, fcn);
|
|
|
1114
|
|
|
1115 ngx_shmtx_unlock(&cache->shpool->mutex);
|
|
|
1116
|
|
|
1117 len = path->name.len + 1 + path->len + 2 * NGX_HTTP_CACHE_KEY_LEN;
|
|
|
1118
|
|
|
1119 ngx_create_hashed_filename(path, name, len);
|
|
|
1120
|
|
|
1121 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, ngx_cycle->log, 0,
|
|
|
1122 "http file cache expire: \"%s\"", name);
|
|
|
1123
|
|
|
1124 if (ngx_delete_file(name) == NGX_FILE_ERROR) {
|
|
|
1125 ngx_log_error(NGX_LOG_CRIT, ngx_cycle->log, ngx_errno,
|
|
|
1126 ngx_delete_file_n " \"%s\" failed", name);
|
|
|
1127 }
|
|
|
1128
|
|
|
1129 ngx_shmtx_lock(&cache->shpool->mutex);
|
|
|
1130 }
|
|
|
1131
|
|
|
1132
|
|
|
1133 static time_t
|
|
|
1134 ngx_http_file_cache_manager(void *data)
|
|
464
|
1135 {
|
|
|
1136 ngx_http_file_cache_t *cache = data;
|
|
|
1137
|
|
514
|
1138 off_t size;
|
|
|
1139 time_t next;
|
|
464
|
1140
|
|
468
|
1141 next = ngx_http_file_cache_expire(cache);
|
|
|
1142
|
|
|
1143 cache->last = ngx_current_msec;
|
|
|
1144 cache->files = 0;
|
|
|
1145
|
|
|
1146 for ( ;; ) {
|
|
|
1147 ngx_shmtx_lock(&cache->shpool->mutex);
|
|
|
1148
|
|
480
|
1149 size = cache->sh->size;
|
|
464
|
1150
|
|
468
|
1151 ngx_shmtx_unlock(&cache->shpool->mutex);
|
|
|
1152
|
|
470
|
1153 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, ngx_cycle->log, 0,
|
|
|
1154 "http file cache size: %O", size);
|
|
|
1155
|
|
468
|
1156 if (size < cache->max_size) {
|
|
|
1157 return next;
|
|
|
1158 }
|
|
464
|
1159
|
|
468
|
1160 next = ngx_http_file_cache_forced_expire(cache);
|
|
|
1161
|
|
|
1162 if (ngx_http_file_cache_manager_sleep(cache) != NGX_OK) {
|
|
|
1163 return next;
|
|
|
1164 }
|
|
|
1165 }
|
|
464
|
1166 }
|
|
|
1167
|
|
|
1168
|
|
514
|
1169 static void
|
|
|
1170 ngx_http_file_cache_loader(void *data)
|
|
|
1171 {
|
|
|
1172 ngx_http_file_cache_t *cache = data;
|
|
|
1173
|
|
|
1174 ngx_tree_ctx_t tree;
|
|
|
1175
|
|
|
1176 if (!cache->sh->cold || cache->sh->loading) {
|
|
|
1177 return;
|
|
|
1178 }
|
|
|
1179
|
|
|
1180 if (!ngx_atomic_cmp_set(&cache->sh->loading, 0, ngx_pid)) {
|
|
|
1181 return;
|
|
|
1182 }
|
|
|
1183
|
|
|
1184 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, ngx_cycle->log, 0,
|
|
|
1185 "http file cache loader");
|
|
|
1186
|
|
|
1187 tree.init_handler = NULL;
|
|
|
1188 tree.file_handler = ngx_http_file_cache_manage_file;
|
|
|
1189 tree.pre_tree_handler = ngx_http_file_cache_noop;
|
|
|
1190 tree.post_tree_handler = ngx_http_file_cache_noop;
|
|
|
1191 tree.spec_handler = ngx_http_file_cache_delete_file;
|
|
|
1192 tree.data = cache;
|
|
|
1193 tree.alloc = 0;
|
|
|
1194 tree.log = ngx_cycle->log;
|
|
|
1195
|
|
|
1196 cache->last = ngx_current_msec;
|
|
|
1197 cache->files = 0;
|
|
|
1198
|
|
|
1199 if (ngx_walk_tree(&tree, &cache->path->name) == NGX_ABORT) {
|
|
|
1200 cache->sh->loading = 0;
|
|
|
1201 return;
|
|
|
1202 }
|
|
|
1203
|
|
|
1204 cache->sh->cold = 0;
|
|
|
1205 cache->sh->loading = 0;
|
|
|
1206
|
|
|
1207 ngx_log_error(NGX_LOG_NOTICE, ngx_cycle->log, 0,
|
|
|
1208 "http file cache: %V %.3fM, bsize: %uz",
|
|
|
1209 &cache->path->name,
|
|
|
1210 ((double) cache->sh->size * cache->bsize) / (1024 * 1024),
|
|
|
1211 cache->bsize);
|
|
|
1212 }
|
|
|
1213
|
|
|
1214
|
|
464
|
1215 static ngx_int_t
|
|
468
|
1216 ngx_http_file_cache_manager_sleep(ngx_http_file_cache_t *cache)
|
|
|
1217 {
|
|
|
1218 ngx_msec_t elapsed;
|
|
|
1219
|
|
|
1220 if (cache->files++ > 100) {
|
|
|
1221
|
|
|
1222 ngx_time_update(0, 0);
|
|
|
1223
|
|
|
1224 elapsed = ngx_abs((ngx_msec_int_t) (ngx_current_msec - cache->last));
|
|
|
1225
|
|
|
1226 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, ngx_cycle->log, 0,
|
|
|
1227 "http file cache manager time: %M", elapsed);
|
|
|
1228
|
|
|
1229 if (elapsed > 200) {
|
|
|
1230
|
|
|
1231 /*
|
|
|
1232 * if processing 100 files takes more than 200ms,
|
|
|
1233 * it seems that many operations require disk i/o,
|
|
|
1234 * therefore sleep 200ms
|
|
|
1235 */
|
|
|
1236
|
|
|
1237 ngx_msleep(200);
|
|
|
1238
|
|
|
1239 ngx_time_update(0, 0);
|
|
|
1240 }
|
|
|
1241
|
|
|
1242 cache->last = ngx_current_msec;
|
|
|
1243 cache->files = 0;
|
|
|
1244 }
|
|
|
1245
|
|
|
1246 return (ngx_quit || ngx_terminate) ? NGX_ABORT : NGX_OK;
|
|
|
1247 }
|
|
|
1248
|
|
|
1249
|
|
|
1250 static ngx_int_t
|
|
|
1251 ngx_http_file_cache_noop(ngx_tree_ctx_t *ctx, ngx_str_t *path)
|
|
464
|
1252 {
|
|
|
1253 return NGX_OK;
|
|
|
1254 }
|
|
|
1255
|
|
|
1256
|
|
|
1257 static ngx_int_t
|
|
468
|
1258 ngx_http_file_cache_manage_file(ngx_tree_ctx_t *ctx, ngx_str_t *path)
|
|
464
|
1259 {
|
|
468
|
1260 ngx_http_file_cache_t *cache;
|
|
|
1261
|
|
|
1262 cache = ctx->data;
|
|
|
1263
|
|
|
1264 if (ngx_http_file_cache_add_file(ctx, path) != NGX_OK) {
|
|
|
1265 (void) ngx_http_file_cache_delete_file(ctx, path);
|
|
|
1266 }
|
|
|
1267
|
|
|
1268 return ngx_http_file_cache_manager_sleep(cache);
|
|
|
1269 }
|
|
|
1270
|
|
464
|
1271
|
|
468
|
1272 static ngx_int_t
|
|
|
1273 ngx_http_file_cache_add_file(ngx_tree_ctx_t *ctx, ngx_str_t *name)
|
|
|
1274 {
|
|
|
1275 u_char *p;
|
|
|
1276 ngx_fd_t fd;
|
|
|
1277 ngx_int_t n;
|
|
|
1278 ngx_uint_t i;
|
|
|
1279 ngx_file_info_t fi;
|
|
|
1280 ngx_http_cache_t c;
|
|
|
1281 ngx_http_file_cache_t *cache;
|
|
|
1282 ngx_http_file_cache_header_t h;
|
|
|
1283
|
|
|
1284 if (name->len < 2 * NGX_HTTP_CACHE_KEY_LEN) {
|
|
|
1285 return NGX_ERROR;
|
|
464
|
1286 }
|
|
|
1287
|
|
468
|
1288 ngx_memzero(&c, sizeof(ngx_http_cache_t));
|
|
|
1289
|
|
|
1290 fd = ngx_open_file(name->data, NGX_FILE_RDONLY, NGX_FILE_OPEN, 0);
|
|
|
1291
|
|
|
1292 if (fd == NGX_INVALID_FILE) {
|
|
|
1293 ngx_log_error(NGX_LOG_CRIT, ctx->log, ngx_errno,
|
|
|
1294 ngx_open_file_n " \"%s\" failed", name->data);
|
|
|
1295 return NGX_ERROR;
|
|
|
1296 }
|
|
|
1297
|
|
|
1298 c.file.fd = fd;
|
|
|
1299 c.file.name = *name;
|
|
|
1300 c.file.log = ctx->log;
|
|
|
1301
|
|
|
1302 n = ngx_read_file(&c.file, (u_char *) &h,
|
|
|
1303 sizeof(ngx_http_file_cache_header_t), 0);
|
|
|
1304 if (n == NGX_ERROR) {
|
|
|
1305 return NGX_ERROR;
|
|
|
1306 }
|
|
|
1307
|
|
|
1308 if ((size_t) n < sizeof(ngx_http_file_cache_header_t)) {
|
|
|
1309 ngx_log_error(NGX_LOG_CRIT, ctx->log, 0,
|
|
|
1310 "cache file \"%s\" is too small", name->data);
|
|
|
1311 return NGX_ERROR;
|
|
|
1312 }
|
|
|
1313
|
|
|
1314 if (ngx_fd_info(fd, &fi) == NGX_FILE_ERROR) {
|
|
|
1315 ngx_log_error(NGX_LOG_CRIT, ctx->log, ngx_errno,
|
|
|
1316 ngx_fd_info_n " \"%s\" failed", name->data);
|
|
|
1317
|
|
|
1318 } else {
|
|
|
1319 c.uniq = ngx_file_uniq(&fi);
|
|
|
1320 c.valid_sec = h.valid_sec;
|
|
|
1321 c.valid_msec = h.valid_msec;
|
|
|
1322 c.body_start = h.body_start;
|
|
|
1323 c.length = ngx_file_size(&fi);
|
|
|
1324 }
|
|
|
1325
|
|
|
1326 if (ngx_close_file(fd) == NGX_FILE_ERROR) {
|
|
|
1327 ngx_log_error(NGX_LOG_ALERT, ctx->log, ngx_errno,
|
|
|
1328 ngx_close_file_n " \"%s\" failed", name->data);
|
|
|
1329 }
|
|
|
1330
|
|
|
1331 if (c.body_start == 0) {
|
|
|
1332 return NGX_ERROR;
|
|
|
1333 }
|
|
|
1334
|
|
|
1335 p = &name->data[name->len - 2 * NGX_HTTP_CACHE_KEY_LEN];
|
|
464
|
1336
|
|
|
1337 for (i = 0; i < NGX_HTTP_CACHE_KEY_LEN; i++) {
|
|
|
1338 n = ngx_hextoi(p, 2);
|
|
|
1339
|
|
|
1340 if (n == NGX_ERROR) {
|
|
468
|
1341 return NGX_ERROR;
|
|
464
|
1342 }
|
|
|
1343
|
|
|
1344 p += 2;
|
|
|
1345
|
|
468
|
1346 c.key[i] = (u_char) n;
|
|
464
|
1347 }
|
|
|
1348
|
|
|
1349 cache = ctx->data;
|
|
|
1350
|
|
468
|
1351 return ngx_http_file_cache_add(cache, &c);
|
|
|
1352 }
|
|
|
1353
|
|
|
1354
|
|
|
1355 static ngx_int_t
|
|
|
1356 ngx_http_file_cache_add(ngx_http_file_cache_t *cache, ngx_http_cache_t *c)
|
|
|
1357 {
|
|
|
1358 ngx_http_file_cache_node_t *fcn;
|
|
|
1359
|
|
464
|
1360 ngx_shmtx_lock(&cache->shpool->mutex);
|
|
|
1361
|
|
468
|
1362 fcn = ngx_http_file_cache_lookup(cache, c->key);
|
|
|
1363
|
|
|
1364 if (fcn == NULL) {
|
|
|
1365
|
|
|
1366 fcn = ngx_slab_alloc_locked(cache->shpool,
|
|
|
1367 sizeof(ngx_http_file_cache_node_t));
|
|
|
1368 if (fcn == NULL) {
|
|
|
1369 ngx_shmtx_unlock(&cache->shpool->mutex);
|
|
|
1370 return NGX_ERROR;
|
|
|
1371 }
|
|
|
1372
|
|
|
1373 ngx_memcpy((u_char *) &fcn->node.key, c->key, sizeof(ngx_rbtree_key_t));
|
|
|
1374
|
|
|
1375 ngx_memcpy(fcn->key, &c->key[sizeof(ngx_rbtree_key_t)],
|
|
|
1376 NGX_HTTP_CACHE_KEY_LEN - sizeof(ngx_rbtree_key_t));
|
|
|
1377
|
|
480
|
1378 ngx_rbtree_insert(&cache->sh->rbtree, &fcn->node);
|
|
468
|
1379
|
|
|
1380 fcn->uses = 1;
|
|
|
1381 fcn->count = 0;
|
|
|
1382 fcn->valid_msec = c->valid_msec;
|
|
|
1383 fcn->error = 0;
|
|
|
1384 fcn->exists = 1;
|
|
|
1385 fcn->uniq = c->uniq;
|
|
|
1386 fcn->valid_sec = c->valid_sec;
|
|
|
1387 fcn->body_start = c->body_start;
|
|
|
1388 fcn->length = c->length;
|
|
|
1389
|
|
480
|
1390 cache->sh->size += (c->length + cache->bsize - 1) / cache->bsize;
|
|
468
|
1391
|
|
|
1392 } else {
|
|
|
1393 ngx_queue_remove(&fcn->queue);
|
|
|
1394 }
|
|
|
1395
|
|
|
1396 fcn->expire = ngx_time() + cache->inactive;
|
|
|
1397
|
|
480
|
1398 ngx_queue_insert_head(&cache->sh->queue, &fcn->queue);
|
|
464
|
1399
|
|
|
1400 ngx_shmtx_unlock(&cache->shpool->mutex);
|
|
|
1401
|
|
468
|
1402 return NGX_OK;
|
|
|
1403 }
|
|
|
1404
|
|
464
|
1405
|
|
468
|
1406 static ngx_int_t
|
|
|
1407 ngx_http_file_cache_delete_file(ngx_tree_ctx_t *ctx, ngx_str_t *path)
|
|
|
1408 {
|
|
464
|
1409 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, ctx->log, 0,
|
|
468
|
1410 "http file cache delete: \"%s\"", path->data);
|
|
464
|
1411
|
|
|
1412 if (ngx_delete_file(path->data) == NGX_FILE_ERROR) {
|
|
|
1413 ngx_log_error(NGX_LOG_CRIT, ctx->log, ngx_errno,
|
|
|
1414 ngx_delete_file_n " \"%s\" failed", path->data);
|
|
|
1415 }
|
|
26
|
1416
|
|
0
|
1417 return NGX_OK;
|
|
|
1418 }
|
|
|
1419
|
|
|
1420
|
|
464
|
1421 time_t
|
|
|
1422 ngx_http_file_cache_valid(ngx_array_t *cache_valid, ngx_uint_t status)
|
|
0
|
1423 {
|
|
464
|
1424 ngx_uint_t i;
|
|
|
1425 ngx_http_cache_valid_t *valid;
|
|
0
|
1426
|
|
470
|
1427 if (cache_valid == NULL) {
|
|
|
1428 return 0;
|
|
|
1429 }
|
|
|
1430
|
|
464
|
1431 valid = cache_valid->elts;
|
|
|
1432 for (i = 0; i < cache_valid->nelts; i++) {
|
|
0
|
1433
|
|
464
|
1434 if (valid[i].status == 0) {
|
|
|
1435 return valid[i].valid;
|
|
0
|
1436 }
|
|
|
1437
|
|
464
|
1438 if (valid[i].status == status) {
|
|
|
1439 return valid[i].valid;
|
|
0
|
1440 }
|
|
464
|
1441 }
|
|
0
|
1442
|
|
464
|
1443 return 0;
|
|
0
|
1444 }
|
|
|
1445
|
|
|
1446
|
|
464
|
1447 char *
|
|
|
1448 ngx_http_file_cache_set_slot(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
|
1449 {
|
|
468
|
1450 off_t max_size;
|
|
464
|
1451 u_char *last, *p;
|
|
468
|
1452 time_t inactive;
|
|
464
|
1453 ssize_t size;
|
|
|
1454 ngx_str_t s, name, *value;
|
|
|
1455 ngx_uint_t i, n;
|
|
|
1456 ngx_http_file_cache_t *cache;
|
|
|
1457
|
|
|
1458 cache = ngx_pcalloc(cf->pool, sizeof(ngx_http_file_cache_t));
|
|
|
1459 if (cache == NULL) {
|
|
|
1460 return NGX_CONF_ERROR;
|
|
|
1461 }
|
|
|
1462
|
|
|
1463 cache->path = ngx_pcalloc(cf->pool, sizeof(ngx_path_t));
|
|
|
1464 if (cache->path == NULL) {
|
|
|
1465 return NGX_CONF_ERROR;
|
|
|
1466 }
|
|
|
1467
|
|
|
1468 inactive = 600;
|
|
|
1469
|
|
|
1470 name.len = 0;
|
|
|
1471 size = 0;
|
|
468
|
1472 max_size = NGX_MAX_OFF_T_VALUE;
|
|
464
|
1473
|
|
|
1474 value = cf->args->elts;
|
|
|
1475
|
|
|
1476 cache->path->name = value[1];
|
|
|
1477
|
|
|
1478 if (cache->path->name.data[cache->path->name.len - 1] == '/') {
|
|
|
1479 cache->path->name.len--;
|
|
|
1480 }
|
|
|
1481
|
|
|
1482 if (ngx_conf_full_name(cf->cycle, &cache->path->name, 0) != NGX_OK) {
|
|
|
1483 return NGX_CONF_ERROR;
|
|
|
1484 }
|
|
|
1485
|
|
|
1486 for (i = 2; i < cf->args->nelts; i++) {
|
|
|
1487
|
|
|
1488 if (ngx_strncmp(value[i].data, "levels=", 7) == 0) {
|
|
|
1489
|
|
|
1490 p = value[i].data + 7;
|
|
|
1491 last = value[i].data + value[i].len;
|
|
|
1492
|
|
472
|
1493 for (n = 0; n < 3 && p < last; n++) {
|
|
464
|
1494
|
|
472
|
1495 if (*p > '0' && *p < '3') {
|
|
464
|
1496
|
|
|
1497 cache->path->level[n] = *p++ - '0';
|
|
|
1498 cache->path->len += cache->path->level[n] + 1;
|
|
|
1499
|
|
|
1500 if (p == last) {
|
|
|
1501 break;
|
|
|
1502 }
|
|
|
1503
|
|
472
|
1504 if (*p++ == ':' && n < 2 && p != last) {
|
|
464
|
1505 continue;
|
|
|
1506 }
|
|
472
|
1507
|
|
|
1508 goto invalid_levels;
|
|
464
|
1509 }
|
|
|
1510
|
|
|
1511 goto invalid_levels;
|
|
|
1512 }
|
|
|
1513
|
|
|
1514 if (cache->path->len < 10 + 3) {
|
|
|
1515 continue;
|
|
|
1516 }
|
|
|
1517
|
|
|
1518 invalid_levels:
|
|
|
1519
|
|
|
1520 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
1521 "invalid \"levels\" \"%V\"", &value[i]);
|
|
|
1522 return NGX_CONF_ERROR;
|
|
|
1523 }
|
|
|
1524
|
|
|
1525 if (ngx_strncmp(value[i].data, "keys_zone=", 10) == 0) {
|
|
|
1526
|
|
|
1527 name.data = value[i].data + 10;
|
|
|
1528
|
|
|
1529 p = (u_char *) ngx_strchr(name.data, ':');
|
|
|
1530
|
|
|
1531 if (p) {
|
|
480
|
1532 *p = '\0';
|
|
|
1533
|
|
464
|
1534 name.len = p - name.data;
|
|
|
1535
|
|
|
1536 p++;
|
|
|
1537
|
|
|
1538 s.len = value[i].data + value[i].len - p;
|
|
|
1539 s.data = p;
|
|
|
1540
|
|
|
1541 size = ngx_parse_size(&s);
|
|
|
1542 if (size > 8191) {
|
|
|
1543 continue;
|
|
|
1544 }
|
|
|
1545 }
|
|
|
1546
|
|
|
1547 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
1548 "invalid keys zone size \"%V\"", &value[i]);
|
|
|
1549 return NGX_CONF_ERROR;
|
|
|
1550 }
|
|
|
1551
|
|
|
1552 if (ngx_strncmp(value[i].data, "inactive=", 9) == 0) {
|
|
|
1553
|
|
|
1554 s.len = value[i].len - 9;
|
|
|
1555 s.data = value[i].data + 9;
|
|
|
1556
|
|
|
1557 inactive = ngx_parse_time(&s, 1);
|
|
|
1558 if (inactive < 0) {
|
|
|
1559 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
1560 "invalid inactive value \"%V\"", &value[i]);
|
|
|
1561 return NGX_CONF_ERROR;
|
|
|
1562 }
|
|
|
1563
|
|
|
1564 continue;
|
|
|
1565 }
|
|
|
1566
|
|
468
|
1567 if (ngx_strncmp(value[i].data, "max_size=", 9) == 0) {
|
|
464
|
1568
|
|
468
|
1569 s.len = value[i].len - 9;
|
|
|
1570 s.data = value[i].data + 9;
|
|
464
|
1571
|
|
468
|
1572 max_size = ngx_parse_offset(&s);
|
|
|
1573 if (max_size < 0) {
|
|
464
|
1574 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
468
|
1575 "invalid max_size value \"%V\"", &value[i]);
|
|
464
|
1576 return NGX_CONF_ERROR;
|
|
|
1577 }
|
|
|
1578
|
|
|
1579 continue;
|
|
|
1580 }
|
|
|
1581
|
|
|
1582 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
1583 "invalid parameter \"%V\"", &value[i]);
|
|
|
1584 return NGX_CONF_ERROR;
|
|
|
1585 }
|
|
|
1586
|
|
|
1587 if (name.len == 0 || size == 0) {
|
|
|
1588 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
1589 "\"%V\" must have \"keys_zone\" parameter",
|
|
|
1590 &cmd->name);
|
|
|
1591 return NGX_CONF_ERROR;
|
|
|
1592 }
|
|
|
1593
|
|
468
|
1594 cache->path->manager = ngx_http_file_cache_manager;
|
|
514
|
1595 cache->path->loader = ngx_http_file_cache_loader;
|
|
464
|
1596 cache->path->data = cache;
|
|
|
1597
|
|
|
1598 if (ngx_add_path(cf, &cache->path) != NGX_OK) {
|
|
|
1599 return NGX_CONF_ERROR;
|
|
|
1600 }
|
|
|
1601
|
|
|
1602 cache->shm_zone = ngx_shared_memory_add(cf, &name, size, cmd->post);
|
|
|
1603 if (cache->shm_zone == NULL) {
|
|
|
1604 return NGX_CONF_ERROR;
|
|
|
1605 }
|
|
|
1606
|
|
|
1607 if (cache->shm_zone->data) {
|
|
|
1608 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
1609 "duplicate zone \"%V\"", &name);
|
|
|
1610 return NGX_CONF_ERROR;
|
|
|
1611 }
|
|
|
1612
|
|
|
1613
|
|
|
1614 cache->shm_zone->init = ngx_http_file_cache_init;
|
|
|
1615 cache->shm_zone->data = cache;
|
|
|
1616
|
|
|
1617 cache->inactive = inactive;
|
|
468
|
1618 cache->max_size = max_size;
|
|
464
|
1619
|
|
|
1620 return NGX_CONF_OK;
|
|
|
1621 }
|
|
26
|
1622
|
|
|
1623
|
|
464
|
1624 char *
|
|
|
1625 ngx_http_file_cache_valid_set_slot(ngx_conf_t *cf, ngx_command_t *cmd,
|
|
|
1626 void *conf)
|
|
0
|
1627 {
|
|
464
|
1628 char *p = conf;
|
|
0
|
1629
|
|
464
|
1630 time_t valid;
|
|
|
1631 ngx_str_t *value;
|
|
|
1632 ngx_uint_t i, n, status;
|
|
|
1633 ngx_array_t **a;
|
|
|
1634 ngx_http_cache_valid_t *v;
|
|
|
1635 static ngx_uint_t statuses[] = { 200, 301, 302 };
|
|
26
|
1636
|
|
464
|
1637 a = (ngx_array_t **) (p + cmd->offset);
|
|
0
|
1638
|
|
464
|
1639 if (*a == NGX_CONF_UNSET_PTR) {
|
|
|
1640 *a = ngx_array_create(cf->pool, 1, sizeof(ngx_http_cache_valid_t));
|
|
|
1641 if (*a == NULL) {
|
|
|
1642 return NGX_CONF_ERROR;
|
|
|
1643 }
|
|
|
1644 }
|
|
0
|
1645
|
|
464
|
1646 value = cf->args->elts;
|
|
|
1647 n = cf->args->nelts - 1;
|
|
0
|
1648
|
|
464
|
1649 valid = ngx_parse_time(&value[n], 1);
|
|
|
1650 if (valid < 0) {
|
|
|
1651 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
1652 "invalid time value \"%V\"", &value[n]);
|
|
|
1653 return NGX_CONF_ERROR;
|
|
0
|
1654 }
|
|
|
1655
|
|
464
|
1656 if (n == 1) {
|
|
|
1657
|
|
|
1658 for (i = 0; i < 3; i++) {
|
|
|
1659 v = ngx_array_push(*a);
|
|
|
1660 if (v == NULL) {
|
|
|
1661 return NGX_CONF_ERROR;
|
|
|
1662 }
|
|
|
1663
|
|
|
1664 v->status = statuses[i];
|
|
|
1665 v->valid = valid;
|
|
|
1666 }
|
|
|
1667
|
|
|
1668 return NGX_CONF_OK;
|
|
0
|
1669 }
|
|
|
1670
|
|
464
|
1671 for (i = 1; i < n; i++) {
|
|
|
1672
|
|
|
1673 if (ngx_strcmp(value[i].data, "any") == 0) {
|
|
|
1674
|
|
|
1675 status = 0;
|
|
|
1676
|
|
|
1677 } else {
|
|
0
|
1678
|
|
464
|
1679 status = ngx_atoi(value[i].data, value[i].len);
|
|
|
1680 if (status < 100) {
|
|
|
1681 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
1682 "invalid status \"%V\"", &value[i]);
|
|
|
1683 return NGX_CONF_ERROR;
|
|
|
1684 }
|
|
|
1685 }
|
|
|
1686
|
|
|
1687 v = ngx_array_push(*a);
|
|
|
1688 if (v == NULL) {
|
|
|
1689 return NGX_CONF_ERROR;
|
|
|
1690 }
|
|
|
1691
|
|
|
1692 v->status = status;
|
|
|
1693 v->valid = valid;
|
|
|
1694 }
|
|
|
1695
|
|
|
1696 return NGX_CONF_OK;
|
|
0
|
1697 }
|
