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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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644
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4 * Copyright (C) Nginx, Inc.
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0
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5 */
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6
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7
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8 #include <ngx_config.h>
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9 #include <ngx_core.h>
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10 #include <ngx_http.h>
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464
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11 #include <ngx_md5.h>
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0
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12
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13
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518
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14 static ngx_int_t ngx_http_file_cache_read(ngx_http_request_t *r,
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15 ngx_http_cache_t *c);
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542
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16 static ssize_t ngx_http_file_cache_aio_read(ngx_http_request_t *r,
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17 ngx_http_cache_t *c);
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518
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18 #if (NGX_HAVE_FILE_AIO)
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19 static void ngx_http_cache_aio_event_handler(ngx_event_t *ev);
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20 #endif
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468
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21 static ngx_int_t ngx_http_file_cache_exists(ngx_http_file_cache_t *cache,
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22 ngx_http_cache_t *c);
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588
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23 static ngx_int_t ngx_http_file_cache_name(ngx_http_request_t *r,
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24 ngx_path_t *path);
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464
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25 static ngx_http_file_cache_node_t *
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26 ngx_http_file_cache_lookup(ngx_http_file_cache_t *cache, u_char *key);
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27 static void ngx_http_file_cache_rbtree_insert_value(ngx_rbtree_node_t *temp,
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28 ngx_rbtree_node_t *node, ngx_rbtree_node_t *sentinel);
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29 static void ngx_http_file_cache_cleanup(void *data);
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468
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30 static time_t ngx_http_file_cache_forced_expire(ngx_http_file_cache_t *cache);
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31 static time_t ngx_http_file_cache_expire(ngx_http_file_cache_t *cache);
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32 static void ngx_http_file_cache_delete(ngx_http_file_cache_t *cache,
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33 ngx_queue_t *q, u_char *name);
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34 static ngx_int_t
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632
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35 ngx_http_file_cache_loader_sleep(ngx_http_file_cache_t *cache);
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468
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36 static ngx_int_t ngx_http_file_cache_noop(ngx_tree_ctx_t *ctx,
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464
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37 ngx_str_t *path);
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468
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38 static ngx_int_t ngx_http_file_cache_manage_file(ngx_tree_ctx_t *ctx,
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39 ngx_str_t *path);
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40 static ngx_int_t ngx_http_file_cache_add_file(ngx_tree_ctx_t *ctx,
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41 ngx_str_t *path);
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42 static ngx_int_t ngx_http_file_cache_add(ngx_http_file_cache_t *cache,
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43 ngx_http_cache_t *c);
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44 static ngx_int_t ngx_http_file_cache_delete_file(ngx_tree_ctx_t *ctx,
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464
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45 ngx_str_t *path);
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0
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46
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47
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502
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48 ngx_str_t ngx_http_cache_status[] = {
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49 ngx_string("MISS"),
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588
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50 ngx_string("BYPASS"),
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502
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51 ngx_string("EXPIRED"),
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52 ngx_string("STALE"),
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53 ngx_string("UPDATING"),
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54 ngx_string("HIT")
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55 };
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56
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57
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464
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58 static u_char ngx_http_file_cache_key[] = { LF, 'K', 'E', 'Y', ':', ' ' };
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0
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59
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60
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464
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61 static ngx_int_t
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62 ngx_http_file_cache_init(ngx_shm_zone_t *shm_zone, void *data)
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0
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63 {
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464
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64 ngx_http_file_cache_t *ocache = data;
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0
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65
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468
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66 size_t len;
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514
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67 ngx_uint_t n;
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464
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68 ngx_http_file_cache_t *cache;
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0
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69
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464
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70 cache = shm_zone->data;
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0
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71
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464
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72 if (ocache) {
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73 if (ngx_strcmp(cache->path->name.data, ocache->path->name.data) != 0) {
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74 ngx_log_error(NGX_LOG_EMERG, shm_zone->shm.log, 0,
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75 "cache \"%V\" uses the \"%V\" cache path "
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76 "while previously it used the \"%V\" cache path",
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480
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77 &shm_zone->shm.name, &cache->path->name,
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464
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78 &ocache->path->name);
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0
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79
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80 return NGX_ERROR;
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81 }
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82
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514
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83 for (n = 0; n < 3; n++) {
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84 if (cache->path->level[n] != ocache->path->level[n]) {
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85 ngx_log_error(NGX_LOG_EMERG, shm_zone->shm.log, 0,
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86 "cache \"%V\" had previously different levels",
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87 &shm_zone->shm.name);
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88 return NGX_ERROR;
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89 }
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90 }
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91
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480
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92 cache->sh = ocache->sh;
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93
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464
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94 cache->shpool = ocache->shpool;
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468
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95 cache->bsize = ocache->bsize;
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96
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97 cache->max_size /= cache->bsize;
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464
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98
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514
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99 if (!cache->sh->cold || cache->sh->loading) {
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100 cache->path->loader = NULL;
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101 }
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102
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464
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103 return NGX_OK;
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104 }
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105
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106 cache->shpool = (ngx_slab_pool_t *) shm_zone->shm.addr;
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107
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480
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108 if (shm_zone->shm.exists) {
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109 cache->sh = cache->shpool->data;
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110 cache->bsize = ngx_fs_bsize(cache->path->name.data);
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111
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112 return NGX_OK;
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464
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113 }
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114
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480
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115 cache->sh = ngx_slab_alloc(cache->shpool, sizeof(ngx_http_file_cache_sh_t));
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116 if (cache->sh == NULL) {
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464
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117 return NGX_ERROR;
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118 }
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119
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480
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120 cache->shpool->data = cache->sh;
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121
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122 ngx_rbtree_init(&cache->sh->rbtree, &cache->sh->sentinel,
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464
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123 ngx_http_file_cache_rbtree_insert_value);
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124
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480
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125 ngx_queue_init(&cache->sh->queue);
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464
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126
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480
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127 cache->sh->cold = 1;
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514
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128 cache->sh->loading = 0;
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480
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129 cache->sh->size = 0;
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468
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130
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131 cache->bsize = ngx_fs_bsize(cache->path->name.data);
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132
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133 cache->max_size /= cache->bsize;
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134
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480
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135 len = sizeof(" in cache keys zone \"\"") + shm_zone->shm.name.len;
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468
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136
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137 cache->shpool->log_ctx = ngx_slab_alloc(cache->shpool, len);
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138 if (cache->shpool->log_ctx == NULL) {
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139 return NGX_ERROR;
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140 }
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141
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142 ngx_sprintf(cache->shpool->log_ctx, " in cache keys zone \"%V\"%Z",
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480
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143 &shm_zone->shm.name);
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464
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144
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145 return NGX_OK;
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146 }
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147
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148
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588
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149 ngx_int_t
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150 ngx_http_file_cache_new(ngx_http_request_t *r)
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151 {
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152 ngx_http_cache_t *c;
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153
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154 c = ngx_pcalloc(r->pool, sizeof(ngx_http_cache_t));
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155 if (c == NULL) {
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156 return NGX_ERROR;
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157 }
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158
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159 if (ngx_array_init(&c->keys, r->pool, 4, sizeof(ngx_str_t)) != NGX_OK) {
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160 return NGX_ERROR;
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161 }
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162
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163 r->cache = c;
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164 c->file.log = r->connection->log;
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590
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165 c->file.fd = NGX_INVALID_FILE;
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588
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166
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167 return NGX_OK;
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168 }
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169
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170
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171 ngx_int_t
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172 ngx_http_file_cache_create(ngx_http_request_t *r)
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173 {
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174 ngx_http_cache_t *c;
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175 ngx_pool_cleanup_t *cln;
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176 ngx_http_file_cache_t *cache;
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177
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178 c = r->cache;
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179 cache = c->file_cache;
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180
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181 cln = ngx_pool_cleanup_add(r->pool, 0);
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182 if (cln == NULL) {
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183 return NGX_ERROR;
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184 }
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185
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186 if (ngx_http_file_cache_exists(cache, c) == NGX_ERROR) {
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187 return NGX_ERROR;
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188 }
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189
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190 cln->handler = ngx_http_file_cache_cleanup;
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191 cln->data = c;
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192
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193 if (ngx_http_file_cache_name(r, cache->path) != NGX_OK) {
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194 return NGX_ERROR;
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195 }
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196
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197 return NGX_OK;
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198 }
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199
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200
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464
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201 void
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202 ngx_http_file_cache_create_key(ngx_http_request_t *r)
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203 {
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204 size_t len;
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205 ngx_str_t *key;
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206 ngx_uint_t i;
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207 ngx_md5_t md5;
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208 ngx_http_cache_t *c;
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209
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210 c = r->cache;
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211
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212 len = 0;
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213
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214 ngx_crc32_init(c->crc32);
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215 ngx_md5_init(&md5);
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216
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217 key = c->keys.elts;
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218 for (i = 0; i < c->keys.nelts; i++) {
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219 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
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220 "http cache key: \"%V\"", &key[i]);
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221
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222 len += key[i].len;
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223
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224 ngx_crc32_update(&c->crc32, key[i].data, key[i].len);
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225 ngx_md5_update(&md5, key[i].data, key[i].len);
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226 }
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227
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228 c->header_start = sizeof(ngx_http_file_cache_header_t)
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229 + sizeof(ngx_http_file_cache_key) + len + 1;
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230
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231 ngx_crc32_final(c->crc32);
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232 ngx_md5_final(c->key, &md5);
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233 }
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234
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235
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236 ngx_int_t
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237 ngx_http_file_cache_open(ngx_http_request_t *r)
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238 {
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518
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239 ngx_int_t rc, rv;
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240 ngx_uint_t cold, test;
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241 ngx_http_cache_t *c;
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242 ngx_pool_cleanup_t *cln;
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243 ngx_open_file_info_t of;
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244 ngx_http_file_cache_t *cache;
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245 ngx_http_core_loc_conf_t *clcf;
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464
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246
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247 c = r->cache;
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518
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248
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249 if (c->buf) {
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250 return ngx_http_file_cache_read(r, c);
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251 }
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252
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464
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253 cache = c->file_cache;
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254
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255 cln = ngx_pool_cleanup_add(r->pool, 0);
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256 if (cln == NULL) {
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257 return NGX_ERROR;
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258 }
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259
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468
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260 rc = ngx_http_file_cache_exists(cache, c);
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464
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261
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498
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262 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
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263 "http file cache exists: %i e:%d", rc, c->exists);
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464
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264
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265 if (rc == NGX_ERROR) {
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266 return rc;
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267 }
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268
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269 cln->handler = ngx_http_file_cache_cleanup;
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270 cln->data = c;
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271
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272 if (rc == NGX_AGAIN) {
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518
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273 return NGX_HTTP_CACHE_SCARCE;
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464
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274 }
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275
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480
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276 cold = cache->sh->cold;
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464
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277
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278 if (rc == NGX_OK) {
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279
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280 if (c->error) {
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281 return c->error;
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282 }
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283
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284 c->temp_file = 1;
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285 test = c->exists ? 1 : 0;
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286 rv = NGX_DECLINED;
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287
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288 } else { /* rc == NGX_DECLINED */
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289
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290 if (c->min_uses > 1) {
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291
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292 if (!cold) {
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518
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293 return NGX_HTTP_CACHE_SCARCE;
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0
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294 }
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295
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464
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296 test = 1;
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518
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297 rv = NGX_HTTP_CACHE_SCARCE;
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464
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298
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299 } else {
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300 c->temp_file = 1;
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301 test = cold ? 1 : 0;
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302 rv = NGX_DECLINED;
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0
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303 }
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304 }
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305
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588
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306 if (ngx_http_file_cache_name(r, cache->path) != NGX_OK) {
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464
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307 return NGX_ERROR;
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308 }
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309
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310 if (!test) {
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311 return NGX_DECLINED;
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312 }
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313
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314 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
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315
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316 ngx_memzero(&of, sizeof(ngx_open_file_info_t));
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0
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317
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464
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318 of.uniq = c->uniq;
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319 of.valid = clcf->open_file_cache_valid;
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320 of.min_uses = clcf->open_file_cache_min_uses;
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321 of.events = clcf->open_file_cache_events;
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322 of.directio = NGX_OPEN_FILE_DIRECTIO_OFF;
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532
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323 of.read_ahead = clcf->read_ahead;
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464
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324
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325 if (ngx_open_cached_file(clcf->open_file_cache, &c->file.name, &of, r->pool)
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326 != NGX_OK)
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327 {
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328 switch (of.err) {
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329
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330 case 0:
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331 return NGX_ERROR;
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332
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333 case NGX_ENOENT:
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334 case NGX_ENOTDIR:
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335 return rv;
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336
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337 default:
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338 ngx_log_error(NGX_LOG_CRIT, r->connection->log, of.err,
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339 ngx_open_file_n " \"%s\" failed", c->file.name.data);
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340 return NGX_ERROR;
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341 }
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342 }
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343
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344 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
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345 "http file cache fd: %d", of.fd);
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346
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347 c->file.fd = of.fd;
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466
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348 c->file.log = r->connection->log;
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518
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349 c->uniq = of.uniq;
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350 c->length = of.size;
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622
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351 c->fs_size = (of.fs_size + cache->bsize - 1) / cache->bsize;
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464
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352
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353 c->buf = ngx_create_temp_buf(r->pool, c->body_start);
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354 if (c->buf == NULL) {
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355 return NGX_ERROR;
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356 }
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357
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518
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358 return ngx_http_file_cache_read(r, c);
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359 }
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360
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361
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362 static ngx_int_t
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363 ngx_http_file_cache_read(ngx_http_request_t *r, ngx_http_cache_t *c)
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364 {
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365 time_t now;
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366 ssize_t n;
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367 ngx_int_t rc;
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368 ngx_http_file_cache_t *cache;
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369 ngx_http_file_cache_header_t *h;
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370
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542
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371 n = ngx_http_file_cache_aio_read(r, c);
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|
518
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372
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542
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373 if (n < 0) {
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0
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374 return n;
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375 }
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376
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554
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377 if ((size_t) n < c->header_start) {
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464
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378 ngx_log_error(NGX_LOG_CRIT, r->connection->log, 0,
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26
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379 "cache file \"%s\" is too small", c->file.name.data);
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|
632
|
380 return NGX_DECLINED;
|
|
0
|
381 }
|
|
|
382
|
|
464
|
383 h = (ngx_http_file_cache_header_t *) c->buf->pos;
|
|
0
|
384
|
|
564
|
385 if (h->crc32 != c->crc32) {
|
|
464
|
386 ngx_log_error(NGX_LOG_CRIT, r->connection->log, 0,
|
|
|
387 "cache file \"%s\" has md5 collision", c->file.name.data);
|
|
0
|
388 return NGX_DECLINED;
|
|
|
389 }
|
|
|
390
|
|
644
|
391 if (h->body_start > c->body_start) {
|
|
|
392 ngx_log_error(NGX_LOG_CRIT, r->connection->log, 0,
|
|
|
393 "cache file \"%s\" has too long header",
|
|
|
394 c->file.name.data);
|
|
|
395 return NGX_DECLINED;
|
|
|
396 }
|
|
|
397
|
|
464
|
398 c->buf->last += n;
|
|
26
|
399
|
|
464
|
400 c->valid_sec = h->valid_sec;
|
|
|
401 c->last_modified = h->last_modified;
|
|
|
402 c->date = h->date;
|
|
|
403 c->valid_msec = h->valid_msec;
|
|
564
|
404 c->header_start = h->header_start;
|
|
464
|
405 c->body_start = h->body_start;
|
|
26
|
406
|
|
464
|
407 r->cached = 1;
|
|
|
408
|
|
518
|
409 cache = c->file_cache;
|
|
|
410
|
|
|
411 if (cache->sh->cold) {
|
|
464
|
412
|
|
|
413 ngx_shmtx_lock(&cache->shpool->mutex);
|
|
26
|
414
|
|
468
|
415 if (!c->node->exists) {
|
|
|
416 c->node->uses = 1;
|
|
|
417 c->node->body_start = c->body_start;
|
|
|
418 c->node->exists = 1;
|
|
518
|
419 c->node->uniq = c->uniq;
|
|
632
|
420 c->node->fs_size = c->fs_size;
|
|
468
|
421
|
|
622
|
422 cache->sh->size += c->fs_size;
|
|
468
|
423 }
|
|
464
|
424
|
|
|
425 ngx_shmtx_unlock(&cache->shpool->mutex);
|
|
0
|
426 }
|
|
|
427
|
|
468
|
428 now = ngx_time();
|
|
|
429
|
|
464
|
430 if (c->valid_sec < now) {
|
|
0
|
431
|
|
498
|
432 ngx_shmtx_lock(&cache->shpool->mutex);
|
|
0
|
433
|
|
498
|
434 if (c->node->updating) {
|
|
|
435 rc = NGX_HTTP_CACHE_UPDATING;
|
|
464
|
436
|
|
498
|
437 } else {
|
|
|
438 c->node->updating = 1;
|
|
590
|
439 c->updating = 1;
|
|
498
|
440 rc = NGX_HTTP_CACHE_STALE;
|
|
|
441 }
|
|
|
442
|
|
|
443 ngx_shmtx_unlock(&cache->shpool->mutex);
|
|
|
444
|
|
|
445 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
446 "http file cache expired: %i %T %T",
|
|
|
447 rc, c->valid_sec, now);
|
|
|
448
|
|
|
449 return rc;
|
|
0
|
450 }
|
|
|
451
|
|
464
|
452 return NGX_OK;
|
|
|
453 }
|
|
|
454
|
|
|
455
|
|
542
|
456 static ssize_t
|
|
|
457 ngx_http_file_cache_aio_read(ngx_http_request_t *r, ngx_http_cache_t *c)
|
|
|
458 {
|
|
518
|
459 #if (NGX_HAVE_FILE_AIO)
|
|
542
|
460 ssize_t n;
|
|
|
461 ngx_http_core_loc_conf_t *clcf;
|
|
518
|
462
|
|
542
|
463 if (!ngx_file_aio) {
|
|
|
464 goto noaio;
|
|
|
465 }
|
|
|
466
|
|
|
467 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
468
|
|
|
469 if (!clcf->aio) {
|
|
|
470 goto noaio;
|
|
|
471 }
|
|
|
472
|
|
|
473 n = ngx_file_aio_read(&c->file, c->buf->pos, c->body_start, 0, r->pool);
|
|
|
474
|
|
|
475 if (n != NGX_AGAIN) {
|
|
|
476 return n;
|
|
|
477 }
|
|
|
478
|
|
|
479 c->file.aio->data = r;
|
|
|
480 c->file.aio->handler = ngx_http_cache_aio_event_handler;
|
|
|
481
|
|
|
482 r->main->blocked++;
|
|
|
483 r->aio = 1;
|
|
|
484
|
|
|
485 return NGX_AGAIN;
|
|
|
486
|
|
|
487 noaio:
|
|
|
488
|
|
|
489 #endif
|
|
|
490
|
|
|
491 return ngx_read_file(&c->file, c->buf->pos, c->body_start, 0);
|
|
|
492 }
|
|
|
493
|
|
|
494
|
|
|
495 #if (NGX_HAVE_FILE_AIO)
|
|
518
|
496
|
|
|
497 static void
|
|
|
498 ngx_http_cache_aio_event_handler(ngx_event_t *ev)
|
|
|
499 {
|
|
|
500 ngx_event_aio_t *aio;
|
|
|
501 ngx_http_request_t *r;
|
|
|
502
|
|
|
503 aio = ev->data;
|
|
|
504 r = aio->data;
|
|
|
505
|
|
|
506 r->main->blocked--;
|
|
|
507 r->aio = 0;
|
|
|
508
|
|
|
509 r->connection->write->handler(r->connection->write);
|
|
|
510 }
|
|
|
511
|
|
|
512 #endif
|
|
|
513
|
|
|
514
|
|
464
|
515 static ngx_int_t
|
|
468
|
516 ngx_http_file_cache_exists(ngx_http_file_cache_t *cache, ngx_http_cache_t *c)
|
|
464
|
517 {
|
|
|
518 ngx_int_t rc;
|
|
|
519 ngx_http_file_cache_node_t *fcn;
|
|
|
520
|
|
|
521 ngx_shmtx_lock(&cache->shpool->mutex);
|
|
|
522
|
|
468
|
523 fcn = ngx_http_file_cache_lookup(cache, c->key);
|
|
464
|
524
|
|
|
525 if (fcn) {
|
|
|
526 ngx_queue_remove(&fcn->queue);
|
|
|
527
|
|
592
|
528 fcn->uses++;
|
|
|
529 fcn->count++;
|
|
|
530
|
|
464
|
531 if (fcn->error) {
|
|
|
532
|
|
|
533 if (fcn->valid_sec < ngx_time()) {
|
|
|
534 goto renew;
|
|
|
535 }
|
|
|
536
|
|
|
537 rc = NGX_OK;
|
|
|
538
|
|
|
539 goto done;
|
|
|
540 }
|
|
|
541
|
|
632
|
542 if (fcn->exists || fcn->uses >= c->min_uses) {
|
|
464
|
543
|
|
468
|
544 c->exists = fcn->exists;
|
|
632
|
545 if (fcn->body_start) {
|
|
|
546 c->body_start = fcn->body_start;
|
|
|
547 }
|
|
464
|
548
|
|
|
549 rc = NGX_OK;
|
|
|
550
|
|
|
551 goto done;
|
|
|
552 }
|
|
|
553
|
|
632
|
554 rc = NGX_AGAIN;
|
|
464
|
555
|
|
|
556 goto done;
|
|
|
557 }
|
|
|
558
|
|
|
559 fcn = ngx_slab_alloc_locked(cache->shpool,
|
|
|
560 sizeof(ngx_http_file_cache_node_t));
|
|
|
561 if (fcn == NULL) {
|
|
|
562 ngx_shmtx_unlock(&cache->shpool->mutex);
|
|
|
563
|
|
478
|
564 (void) ngx_http_file_cache_forced_expire(cache);
|
|
464
|
565
|
|
|
566 ngx_shmtx_lock(&cache->shpool->mutex);
|
|
|
567
|
|
|
568 fcn = ngx_slab_alloc_locked(cache->shpool,
|
|
|
569 sizeof(ngx_http_file_cache_node_t));
|
|
|
570 if (fcn == NULL) {
|
|
|
571 rc = NGX_ERROR;
|
|
|
572 goto failed;
|
|
|
573 }
|
|
|
574 }
|
|
|
575
|
|
468
|
576 ngx_memcpy((u_char *) &fcn->node.key, c->key, sizeof(ngx_rbtree_key_t));
|
|
464
|
577
|
|
468
|
578 ngx_memcpy(fcn->key, &c->key[sizeof(ngx_rbtree_key_t)],
|
|
464
|
579 NGX_HTTP_CACHE_KEY_LEN - sizeof(ngx_rbtree_key_t));
|
|
|
580
|
|
480
|
581 ngx_rbtree_insert(&cache->sh->rbtree, &fcn->node);
|
|
464
|
582
|
|
592
|
583 fcn->uses = 1;
|
|
|
584 fcn->count = 1;
|
|
594
|
585 fcn->updating = 0;
|
|
596
|
586 fcn->deleting = 0;
|
|
592
|
587
|
|
464
|
588 renew:
|
|
|
589
|
|
|
590 rc = NGX_DECLINED;
|
|
|
591
|
|
|
592 fcn->valid_msec = 0;
|
|
|
593 fcn->error = 0;
|
|
|
594 fcn->exists = 0;
|
|
|
595 fcn->valid_sec = 0;
|
|
|
596 fcn->uniq = 0;
|
|
|
597 fcn->body_start = 0;
|
|
622
|
598 fcn->fs_size = 0;
|
|
464
|
599
|
|
|
600 done:
|
|
|
601
|
|
|
602 fcn->expire = ngx_time() + cache->inactive;
|
|
|
603
|
|
480
|
604 ngx_queue_insert_head(&cache->sh->queue, &fcn->queue);
|
|
464
|
605
|
|
468
|
606 c->uniq = fcn->uniq;
|
|
|
607 c->error = fcn->error;
|
|
|
608 c->node = fcn;
|
|
464
|
609
|
|
|
610 failed:
|
|
|
611
|
|
|
612 ngx_shmtx_unlock(&cache->shpool->mutex);
|
|
|
613
|
|
|
614 return rc;
|
|
|
615 }
|
|
|
616
|
|
|
617
|
|
588
|
618 static ngx_int_t
|
|
|
619 ngx_http_file_cache_name(ngx_http_request_t *r, ngx_path_t *path)
|
|
|
620 {
|
|
|
621 u_char *p;
|
|
|
622 ngx_http_cache_t *c;
|
|
|
623
|
|
|
624 c = r->cache;
|
|
|
625
|
|
|
626 c->file.name.len = path->name.len + 1 + path->len
|
|
|
627 + 2 * NGX_HTTP_CACHE_KEY_LEN;
|
|
|
628
|
|
|
629 c->file.name.data = ngx_pnalloc(r->pool, c->file.name.len + 1);
|
|
|
630 if (c->file.name.data == NULL) {
|
|
|
631 return NGX_ERROR;
|
|
|
632 }
|
|
|
633
|
|
|
634 ngx_memcpy(c->file.name.data, path->name.data, path->name.len);
|
|
|
635
|
|
|
636 p = c->file.name.data + path->name.len + 1 + path->len;
|
|
|
637 p = ngx_hex_dump(p, c->key, NGX_HTTP_CACHE_KEY_LEN);
|
|
|
638 *p = '\0';
|
|
|
639
|
|
|
640 ngx_create_hashed_filename(path, c->file.name.data, c->file.name.len);
|
|
|
641
|
|
|
642 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
643 "cache file: \"%s\"", c->file.name.data);
|
|
|
644
|
|
|
645 return NGX_OK;
|
|
|
646 }
|
|
|
647
|
|
|
648
|
|
464
|
649 static ngx_http_file_cache_node_t *
|
|
|
650 ngx_http_file_cache_lookup(ngx_http_file_cache_t *cache, u_char *key)
|
|
|
651 {
|
|
|
652 ngx_int_t rc;
|
|
|
653 ngx_rbtree_key_t node_key;
|
|
|
654 ngx_rbtree_node_t *node, *sentinel;
|
|
|
655 ngx_http_file_cache_node_t *fcn;
|
|
|
656
|
|
|
657 ngx_memcpy((u_char *) &node_key, key, sizeof(ngx_rbtree_key_t));
|
|
|
658
|
|
480
|
659 node = cache->sh->rbtree.root;
|
|
|
660 sentinel = cache->sh->rbtree.sentinel;
|
|
464
|
661
|
|
|
662 while (node != sentinel) {
|
|
|
663
|
|
|
664 if (node_key < node->key) {
|
|
|
665 node = node->left;
|
|
|
666 continue;
|
|
|
667 }
|
|
|
668
|
|
|
669 if (node_key > node->key) {
|
|
|
670 node = node->right;
|
|
|
671 continue;
|
|
|
672 }
|
|
|
673
|
|
|
674 /* node_key == node->key */
|
|
|
675
|
|
646
|
676 fcn = (ngx_http_file_cache_node_t *) node;
|
|
464
|
677
|
|
646
|
678 rc = ngx_memcmp(&key[sizeof(ngx_rbtree_key_t)], fcn->key,
|
|
|
679 NGX_HTTP_CACHE_KEY_LEN - sizeof(ngx_rbtree_key_t));
|
|
464
|
680
|
|
646
|
681 if (rc == 0) {
|
|
|
682 return fcn;
|
|
|
683 }
|
|
464
|
684
|
|
646
|
685 node = (rc < 0) ? node->left : node->right;
|
|
464
|
686 }
|
|
|
687
|
|
|
688 /* not found */
|
|
|
689
|
|
|
690 return NULL;
|
|
|
691 }
|
|
|
692
|
|
|
693
|
|
|
694 static void
|
|
|
695 ngx_http_file_cache_rbtree_insert_value(ngx_rbtree_node_t *temp,
|
|
|
696 ngx_rbtree_node_t *node, ngx_rbtree_node_t *sentinel)
|
|
|
697 {
|
|
|
698 ngx_rbtree_node_t **p;
|
|
|
699 ngx_http_file_cache_node_t *cn, *cnt;
|
|
|
700
|
|
|
701 for ( ;; ) {
|
|
|
702
|
|
|
703 if (node->key < temp->key) {
|
|
|
704
|
|
|
705 p = &temp->left;
|
|
|
706
|
|
|
707 } else if (node->key > temp->key) {
|
|
|
708
|
|
|
709 p = &temp->right;
|
|
|
710
|
|
|
711 } else { /* node->key == temp->key */
|
|
|
712
|
|
|
713 cn = (ngx_http_file_cache_node_t *) node;
|
|
|
714 cnt = (ngx_http_file_cache_node_t *) temp;
|
|
|
715
|
|
|
716 p = (ngx_memcmp(cn->key, cnt->key,
|
|
|
717 NGX_HTTP_CACHE_KEY_LEN - sizeof(ngx_rbtree_key_t))
|
|
|
718 < 0)
|
|
|
719 ? &temp->left : &temp->right;
|
|
|
720 }
|
|
|
721
|
|
|
722 if (*p == sentinel) {
|
|
|
723 break;
|
|
|
724 }
|
|
|
725
|
|
|
726 temp = *p;
|
|
|
727 }
|
|
|
728
|
|
|
729 *p = node;
|
|
|
730 node->parent = temp;
|
|
|
731 node->left = sentinel;
|
|
|
732 node->right = sentinel;
|
|
|
733 ngx_rbt_red(node);
|
|
|
734 }
|
|
|
735
|
|
|
736
|
|
|
737 void
|
|
|
738 ngx_http_file_cache_set_header(ngx_http_request_t *r, u_char *buf)
|
|
|
739 {
|
|
|
740 ngx_http_file_cache_header_t *h = (ngx_http_file_cache_header_t *) buf;
|
|
|
741
|
|
|
742 u_char *p;
|
|
|
743 ngx_str_t *key;
|
|
|
744 ngx_uint_t i;
|
|
|
745 ngx_http_cache_t *c;
|
|
|
746
|
|
|
747 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
748 "http file cache set header");
|
|
|
749
|
|
|
750 c = r->cache;
|
|
|
751
|
|
|
752 h->valid_sec = c->valid_sec;
|
|
|
753 h->last_modified = c->last_modified;
|
|
|
754 h->date = c->date;
|
|
|
755 h->crc32 = c->crc32;
|
|
|
756 h->valid_msec = (u_short) c->valid_msec;
|
|
|
757 h->header_start = (u_short) c->header_start;
|
|
|
758 h->body_start = (u_short) c->body_start;
|
|
|
759
|
|
|
760 p = buf + sizeof(ngx_http_file_cache_header_t);
|
|
|
761
|
|
|
762 p = ngx_cpymem(p, ngx_http_file_cache_key, sizeof(ngx_http_file_cache_key));
|
|
|
763
|
|
|
764 key = c->keys.elts;
|
|
|
765 for (i = 0; i < c->keys.nelts; i++) {
|
|
|
766 p = ngx_copy(p, key[i].data, key[i].len);
|
|
|
767 }
|
|
|
768
|
|
|
769 *p = LF;
|
|
|
770 }
|
|
|
771
|
|
|
772
|
|
|
773 void
|
|
|
774 ngx_http_file_cache_update(ngx_http_request_t *r, ngx_temp_file_t *tf)
|
|
|
775 {
|
|
622
|
776 off_t fs_size;
|
|
464
|
777 ngx_int_t rc;
|
|
|
778 ngx_file_uniq_t uniq;
|
|
|
779 ngx_file_info_t fi;
|
|
|
780 ngx_http_cache_t *c;
|
|
|
781 ngx_ext_rename_file_t ext;
|
|
|
782 ngx_http_file_cache_t *cache;
|
|
|
783
|
|
|
784 c = r->cache;
|
|
|
785
|
|
|
786 if (c->updated) {
|
|
|
787 return;
|
|
|
788 }
|
|
|
789
|
|
|
790 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
791 "http file cache update");
|
|
|
792
|
|
|
793 c->updated = 1;
|
|
590
|
794 c->updating = 0;
|
|
464
|
795
|
|
|
796 cache = c->file_cache;
|
|
|
797
|
|
|
798 uniq = 0;
|
|
622
|
799 fs_size = 0;
|
|
464
|
800
|
|
|
801 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
802 "http file cache rename: \"%s\" to \"%s\"",
|
|
|
803 tf->file.name.data, c->file.name.data);
|
|
|
804
|
|
|
805 ext.access = NGX_FILE_OWNER_ACCESS;
|
|
|
806 ext.path_access = NGX_FILE_OWNER_ACCESS;
|
|
|
807 ext.time = -1;
|
|
|
808 ext.create_path = 1;
|
|
|
809 ext.delete_file = 1;
|
|
|
810 ext.log = r->connection->log;
|
|
|
811
|
|
|
812 rc = ngx_ext_rename_file(&tf->file.name, &c->file.name, &ext);
|
|
|
813
|
|
|
814 if (rc == NGX_OK) {
|
|
|
815
|
|
|
816 if (ngx_fd_info(tf->file.fd, &fi) == NGX_FILE_ERROR) {
|
|
|
817 ngx_log_error(NGX_LOG_CRIT, r->connection->log, ngx_errno,
|
|
|
818 ngx_fd_info_n " \"%s\" failed", tf->file.name.data);
|
|
|
819
|
|
|
820 rc = NGX_ERROR;
|
|
|
821
|
|
|
822 } else {
|
|
|
823 uniq = ngx_file_uniq(&fi);
|
|
622
|
824 fs_size = (ngx_file_fs_size(&fi) + cache->bsize - 1) / cache->bsize;
|
|
464
|
825 }
|
|
|
826 }
|
|
|
827
|
|
|
828 ngx_shmtx_lock(&cache->shpool->mutex);
|
|
|
829
|
|
|
830 c->node->count--;
|
|
|
831 c->node->uniq = uniq;
|
|
|
832 c->node->body_start = c->body_start;
|
|
|
833
|
|
622
|
834 cache->sh->size += fs_size - c->node->fs_size;
|
|
|
835 c->node->fs_size = fs_size;
|
|
468
|
836
|
|
464
|
837 if (rc == NGX_OK) {
|
|
|
838 c->node->exists = 1;
|
|
|
839 }
|
|
|
840
|
|
498
|
841 c->node->updating = 0;
|
|
|
842
|
|
464
|
843 ngx_shmtx_unlock(&cache->shpool->mutex);
|
|
|
844 }
|
|
|
845
|
|
|
846
|
|
|
847 ngx_int_t
|
|
|
848 ngx_http_cache_send(ngx_http_request_t *r)
|
|
|
849 {
|
|
|
850 ngx_int_t rc;
|
|
|
851 ngx_buf_t *b;
|
|
|
852 ngx_chain_t out;
|
|
|
853 ngx_http_cache_t *c;
|
|
|
854
|
|
|
855 c = r->cache;
|
|
|
856
|
|
|
857 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
632
|
858 "http file cache send: %s", c->file.name.data);
|
|
464
|
859
|
|
638
|
860 if (r != r->main && c->length - c->body_start == 0) {
|
|
|
861 return ngx_http_send_header(r);
|
|
|
862 }
|
|
|
863
|
|
464
|
864 /* we need to allocate all before the header would be sent */
|
|
|
865
|
|
|
866 b = ngx_pcalloc(r->pool, sizeof(ngx_buf_t));
|
|
|
867 if (b == NULL) {
|
|
|
868 return NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
869 }
|
|
|
870
|
|
|
871 b->file = ngx_pcalloc(r->pool, sizeof(ngx_file_t));
|
|
|
872 if (b->file == NULL) {
|
|
|
873 return NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
874 }
|
|
|
875
|
|
|
876 rc = ngx_http_send_header(r);
|
|
|
877
|
|
|
878 if (rc == NGX_ERROR || rc > NGX_OK || r->header_only) {
|
|
|
879 return rc;
|
|
|
880 }
|
|
|
881
|
|
|
882 b->file_pos = c->body_start;
|
|
|
883 b->file_last = c->length;
|
|
|
884
|
|
638
|
885 b->in_file = (c->length - c->body_start) ? 1: 0;
|
|
464
|
886 b->last_buf = (r == r->main) ? 1: 0;
|
|
|
887 b->last_in_chain = 1;
|
|
|
888
|
|
|
889 b->file->fd = c->file.fd;
|
|
|
890 b->file->name = c->file.name;
|
|
|
891 b->file->log = r->connection->log;
|
|
|
892
|
|
|
893 out.buf = b;
|
|
|
894 out.next = NULL;
|
|
|
895
|
|
|
896 return ngx_http_output_filter(r, &out);
|
|
|
897 }
|
|
|
898
|
|
|
899
|
|
|
900 void
|
|
590
|
901 ngx_http_file_cache_free(ngx_http_cache_t *c, ngx_temp_file_t *tf)
|
|
464
|
902 {
|
|
588
|
903 ngx_http_file_cache_t *cache;
|
|
|
904 ngx_http_file_cache_node_t *fcn;
|
|
464
|
905
|
|
626
|
906 if (c->updated || c->node == NULL) {
|
|
464
|
907 return;
|
|
|
908 }
|
|
|
909
|
|
|
910 cache = c->file_cache;
|
|
|
911
|
|
590
|
912 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->file.log, 0,
|
|
|
913 "http file cache free, fd: %d", c->file.fd);
|
|
464
|
914
|
|
|
915 ngx_shmtx_lock(&cache->shpool->mutex);
|
|
|
916
|
|
588
|
917 fcn = c->node;
|
|
|
918 fcn->count--;
|
|
590
|
919
|
|
|
920 if (c->updating) {
|
|
|
921 fcn->updating = 0;
|
|
|
922 }
|
|
464
|
923
|
|
|
924 if (c->error) {
|
|
588
|
925 fcn->error = c->error;
|
|
|
926
|
|
594
|
927 if (c->valid_sec) {
|
|
|
928 fcn->valid_sec = c->valid_sec;
|
|
|
929 fcn->valid_msec = c->valid_msec;
|
|
|
930 }
|
|
|
931
|
|
592
|
932 } else if (!fcn->exists && fcn->count == 0 && c->min_uses == 1) {
|
|
588
|
933 ngx_queue_remove(&fcn->queue);
|
|
|
934 ngx_rbtree_delete(&cache->sh->rbtree, &fcn->node);
|
|
|
935 ngx_slab_free_locked(cache->shpool, fcn);
|
|
|
936 c->node = NULL;
|
|
464
|
937 }
|
|
|
938
|
|
|
939 ngx_shmtx_unlock(&cache->shpool->mutex);
|
|
|
940
|
|
590
|
941 c->updated = 1;
|
|
|
942 c->updating = 0;
|
|
|
943
|
|
464
|
944 if (c->temp_file) {
|
|
|
945 if (tf && tf->file.fd != NGX_INVALID_FILE) {
|
|
590
|
946 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->file.log, 0,
|
|
464
|
947 "http file cache incomplete: \"%s\"",
|
|
|
948 tf->file.name.data);
|
|
|
949
|
|
|
950 if (ngx_delete_file(tf->file.name.data) == NGX_FILE_ERROR) {
|
|
590
|
951 ngx_log_error(NGX_LOG_CRIT, c->file.log, ngx_errno,
|
|
464
|
952 ngx_delete_file_n " \"%s\" failed",
|
|
|
953 tf->file.name.data);
|
|
|
954 }
|
|
|
955 }
|
|
|
956 }
|
|
|
957 }
|
|
|
958
|
|
|
959
|
|
|
960 static void
|
|
|
961 ngx_http_file_cache_cleanup(void *data)
|
|
|
962 {
|
|
|
963 ngx_http_cache_t *c = data;
|
|
|
964
|
|
|
965 if (c->updated) {
|
|
|
966 return;
|
|
|
967 }
|
|
|
968
|
|
|
969 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->file.log, 0,
|
|
|
970 "http file cache cleanup");
|
|
|
971
|
|
590
|
972 if (c->updating) {
|
|
|
973 ngx_log_error(NGX_LOG_ALERT, c->file.log, 0,
|
|
|
974 "stalled cache updating, error:%ui", c->error);
|
|
464
|
975 }
|
|
|
976
|
|
590
|
977 ngx_http_file_cache_free(c, NULL);
|
|
464
|
978 }
|
|
|
979
|
|
|
980
|
|
|
981 static time_t
|
|
468
|
982 ngx_http_file_cache_forced_expire(ngx_http_file_cache_t *cache)
|
|
|
983 {
|
|
|
984 u_char *name;
|
|
|
985 size_t len;
|
|
|
986 time_t wait;
|
|
|
987 ngx_uint_t tries;
|
|
|
988 ngx_path_t *path;
|
|
|
989 ngx_queue_t *q;
|
|
|
990 ngx_http_file_cache_node_t *fcn;
|
|
|
991
|
|
|
992 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, ngx_cycle->log, 0,
|
|
|
993 "http file cache forced expire");
|
|
|
994
|
|
|
995 path = cache->path;
|
|
|
996 len = path->name.len + 1 + path->len + 2 * NGX_HTTP_CACHE_KEY_LEN;
|
|
|
997
|
|
|
998 name = ngx_alloc(len + 1, ngx_cycle->log);
|
|
|
999 if (name == NULL) {
|
|
478
|
1000 return 10;
|
|
468
|
1001 }
|
|
|
1002
|
|
|
1003 ngx_memcpy(name, path->name.data, path->name.len);
|
|
|
1004
|
|
478
|
1005 wait = 10;
|
|
592
|
1006 tries = 20;
|
|
468
|
1007
|
|
|
1008 ngx_shmtx_lock(&cache->shpool->mutex);
|
|
|
1009
|
|
480
|
1010 for (q = ngx_queue_last(&cache->sh->queue);
|
|
|
1011 q != ngx_queue_sentinel(&cache->sh->queue);
|
|
468
|
1012 q = ngx_queue_prev(q))
|
|
|
1013 {
|
|
|
1014 fcn = ngx_queue_data(q, ngx_http_file_cache_node_t, queue);
|
|
|
1015
|
|
|
1016 ngx_log_debug6(NGX_LOG_DEBUG_HTTP, ngx_cycle->log, 0,
|
|
|
1017 "http file cache forced expire: #%d %d %02xd%02xd%02xd%02xd",
|
|
|
1018 fcn->count, fcn->exists,
|
|
|
1019 fcn->key[0], fcn->key[1], fcn->key[2], fcn->key[3]);
|
|
|
1020
|
|
592
|
1021 if (fcn->count == 0) {
|
|
|
1022 ngx_http_file_cache_delete(cache, q, name);
|
|
620
|
1023 wait = 0;
|
|
468
|
1024
|
|
592
|
1025 } else {
|
|
|
1026 if (--tries) {
|
|
468
|
1027 continue;
|
|
|
1028 }
|
|
|
1029
|
|
|
1030 wait = 1;
|
|
|
1031 }
|
|
|
1032
|
|
|
1033 break;
|
|
|
1034 }
|
|
|
1035
|
|
|
1036 ngx_shmtx_unlock(&cache->shpool->mutex);
|
|
|
1037
|
|
|
1038 ngx_free(name);
|
|
|
1039
|
|
|
1040 return wait;
|
|
|
1041 }
|
|
|
1042
|
|
|
1043
|
|
|
1044 static time_t
|
|
|
1045 ngx_http_file_cache_expire(ngx_http_file_cache_t *cache)
|
|
464
|
1046 {
|
|
|
1047 u_char *name, *p;
|
|
|
1048 size_t len;
|
|
|
1049 time_t now, wait;
|
|
|
1050 ngx_path_t *path;
|
|
|
1051 ngx_queue_t *q;
|
|
|
1052 ngx_http_file_cache_node_t *fcn;
|
|
|
1053 u_char key[2 * NGX_HTTP_CACHE_KEY_LEN];
|
|
|
1054
|
|
|
1055 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, ngx_cycle->log, 0,
|
|
|
1056 "http file cache expire");
|
|
|
1057
|
|
|
1058 path = cache->path;
|
|
|
1059 len = path->name.len + 1 + path->len + 2 * NGX_HTTP_CACHE_KEY_LEN;
|
|
|
1060
|
|
468
|
1061 name = ngx_alloc(len + 1, ngx_cycle->log);
|
|
|
1062 if (name == NULL) {
|
|
478
|
1063 return 10;
|
|
468
|
1064 }
|
|
|
1065
|
|
|
1066 ngx_memcpy(name, path->name.data, path->name.len);
|
|
|
1067
|
|
464
|
1068 now = ngx_time();
|
|
|
1069
|
|
|
1070 ngx_shmtx_lock(&cache->shpool->mutex);
|
|
|
1071
|
|
|
1072 for ( ;; ) {
|
|
|
1073
|
|
480
|
1074 if (ngx_queue_empty(&cache->sh->queue)) {
|
|
478
|
1075 wait = 10;
|
|
464
|
1076 break;
|
|
|
1077 }
|
|
|
1078
|
|
480
|
1079 q = ngx_queue_last(&cache->sh->queue);
|
|
464
|
1080
|
|
|
1081 fcn = ngx_queue_data(q, ngx_http_file_cache_node_t, queue);
|
|
|
1082
|
|
468
|
1083 wait = fcn->expire - now;
|
|
464
|
1084
|
|
468
|
1085 if (wait > 0) {
|
|
478
|
1086 wait = wait > 10 ? 10 : wait;
|
|
468
|
1087 break;
|
|
464
|
1088 }
|
|
|
1089
|
|
|
1090 ngx_log_debug6(NGX_LOG_DEBUG_HTTP, ngx_cycle->log, 0,
|
|
|
1091 "http file cache expire: #%d %d %02xd%02xd%02xd%02xd",
|
|
|
1092 fcn->count, fcn->exists,
|
|
|
1093 fcn->key[0], fcn->key[1], fcn->key[2], fcn->key[3]);
|
|
|
1094
|
|
592
|
1095 if (fcn->count == 0) {
|
|
|
1096 ngx_http_file_cache_delete(cache, q, name);
|
|
468
|
1097 continue;
|
|
464
|
1098 }
|
|
|
1099
|
|
596
|
1100 if (fcn->deleting) {
|
|
630
|
1101 wait = 1;
|
|
|
1102 break;
|
|
596
|
1103 }
|
|
|
1104
|
|
592
|
1105 p = ngx_hex_dump(key, (u_char *) &fcn->node.key,
|
|
|
1106 sizeof(ngx_rbtree_key_t));
|
|
|
1107 len = NGX_HTTP_CACHE_KEY_LEN - sizeof(ngx_rbtree_key_t);
|
|
|
1108 (void) ngx_hex_dump(p, fcn->key, len);
|
|
464
|
1109
|
|
592
|
1110 /*
|
|
|
1111 * abnormally exited workers may leave locked cache entries,
|
|
|
1112 * and although it may be safe to remove them completely,
|
|
644
|
1113 * we prefer to just move them to the top of the inactive queue
|
|
592
|
1114 */
|
|
464
|
1115
|
|
592
|
1116 ngx_queue_remove(q);
|
|
644
|
1117 fcn->expire = ngx_time() + cache->inactive;
|
|
|
1118 ngx_queue_insert_head(&cache->sh->queue, &fcn->queue);
|
|
464
|
1119
|
|
592
|
1120 ngx_log_error(NGX_LOG_ALERT, ngx_cycle->log, 0,
|
|
|
1121 "ignore long locked inactive cache entry %*s, count:%d",
|
|
|
1122 2 * NGX_HTTP_CACHE_KEY_LEN, key, fcn->count);
|
|
464
|
1123 }
|
|
|
1124
|
|
|
1125 ngx_shmtx_unlock(&cache->shpool->mutex);
|
|
|
1126
|
|
468
|
1127 ngx_free(name);
|
|
|
1128
|
|
464
|
1129 return wait;
|
|
|
1130 }
|
|
|
1131
|
|
|
1132
|
|
468
|
1133 static void
|
|
|
1134 ngx_http_file_cache_delete(ngx_http_file_cache_t *cache, ngx_queue_t *q,
|
|
|
1135 u_char *name)
|
|
|
1136 {
|
|
|
1137 u_char *p;
|
|
|
1138 size_t len;
|
|
|
1139 ngx_path_t *path;
|
|
|
1140 ngx_http_file_cache_node_t *fcn;
|
|
|
1141
|
|
|
1142 fcn = ngx_queue_data(q, ngx_http_file_cache_node_t, queue);
|
|
|
1143
|
|
592
|
1144 if (fcn->exists) {
|
|
622
|
1145 cache->sh->size -= fcn->fs_size;
|
|
468
|
1146
|
|
592
|
1147 path = cache->path;
|
|
|
1148 p = name + path->name.len + 1 + path->len;
|
|
|
1149 p = ngx_hex_dump(p, (u_char *) &fcn->node.key,
|
|
|
1150 sizeof(ngx_rbtree_key_t));
|
|
|
1151 len = NGX_HTTP_CACHE_KEY_LEN - sizeof(ngx_rbtree_key_t);
|
|
|
1152 p = ngx_hex_dump(p, fcn->key, len);
|
|
|
1153 *p = '\0';
|
|
468
|
1154
|
|
592
|
1155 fcn->count++;
|
|
596
|
1156 fcn->deleting = 1;
|
|
592
|
1157 ngx_shmtx_unlock(&cache->shpool->mutex);
|
|
468
|
1158
|
|
592
|
1159 len = path->name.len + 1 + path->len + 2 * NGX_HTTP_CACHE_KEY_LEN;
|
|
|
1160 ngx_create_hashed_filename(path, name, len);
|
|
468
|
1161
|
|
592
|
1162 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, ngx_cycle->log, 0,
|
|
|
1163 "http file cache expire: \"%s\"", name);
|
|
468
|
1164
|
|
592
|
1165 if (ngx_delete_file(name) == NGX_FILE_ERROR) {
|
|
|
1166 ngx_log_error(NGX_LOG_CRIT, ngx_cycle->log, ngx_errno,
|
|
|
1167 ngx_delete_file_n " \"%s\" failed", name);
|
|
|
1168 }
|
|
468
|
1169
|
|
592
|
1170 ngx_shmtx_lock(&cache->shpool->mutex);
|
|
|
1171 fcn->count--;
|
|
596
|
1172 fcn->deleting = 0;
|
|
468
|
1173 }
|
|
|
1174
|
|
592
|
1175 if (fcn->count == 0) {
|
|
|
1176 ngx_queue_remove(q);
|
|
|
1177 ngx_rbtree_delete(&cache->sh->rbtree, &fcn->node);
|
|
|
1178 ngx_slab_free_locked(cache->shpool, fcn);
|
|
|
1179 }
|
|
468
|
1180 }
|
|
|
1181
|
|
|
1182
|
|
|
1183 static time_t
|
|
|
1184 ngx_http_file_cache_manager(void *data)
|
|
464
|
1185 {
|
|
|
1186 ngx_http_file_cache_t *cache = data;
|
|
|
1187
|
|
514
|
1188 off_t size;
|
|
620
|
1189 time_t next, wait;
|
|
464
|
1190
|
|
468
|
1191 next = ngx_http_file_cache_expire(cache);
|
|
|
1192
|
|
|
1193 cache->last = ngx_current_msec;
|
|
|
1194 cache->files = 0;
|
|
|
1195
|
|
|
1196 for ( ;; ) {
|
|
|
1197 ngx_shmtx_lock(&cache->shpool->mutex);
|
|
|
1198
|
|
480
|
1199 size = cache->sh->size;
|
|
464
|
1200
|
|
468
|
1201 ngx_shmtx_unlock(&cache->shpool->mutex);
|
|
|
1202
|
|
470
|
1203 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, ngx_cycle->log, 0,
|
|
|
1204 "http file cache size: %O", size);
|
|
|
1205
|
|
468
|
1206 if (size < cache->max_size) {
|
|
|
1207 return next;
|
|
|
1208 }
|
|
464
|
1209
|
|
620
|
1210 wait = ngx_http_file_cache_forced_expire(cache);
|
|
|
1211
|
|
|
1212 if (wait > 0) {
|
|
|
1213 return wait;
|
|
|
1214 }
|
|
468
|
1215
|
|
632
|
1216 if (ngx_quit || ngx_terminate) {
|
|
468
|
1217 return next;
|
|
|
1218 }
|
|
|
1219 }
|
|
464
|
1220 }
|
|
|
1221
|
|
|
1222
|
|
514
|
1223 static void
|
|
|
1224 ngx_http_file_cache_loader(void *data)
|
|
|
1225 {
|
|
|
1226 ngx_http_file_cache_t *cache = data;
|
|
|
1227
|
|
|
1228 ngx_tree_ctx_t tree;
|
|
|
1229
|
|
|
1230 if (!cache->sh->cold || cache->sh->loading) {
|
|
|
1231 return;
|
|
|
1232 }
|
|
|
1233
|
|
|
1234 if (!ngx_atomic_cmp_set(&cache->sh->loading, 0, ngx_pid)) {
|
|
|
1235 return;
|
|
|
1236 }
|
|
|
1237
|
|
|
1238 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, ngx_cycle->log, 0,
|
|
|
1239 "http file cache loader");
|
|
|
1240
|
|
|
1241 tree.init_handler = NULL;
|
|
|
1242 tree.file_handler = ngx_http_file_cache_manage_file;
|
|
|
1243 tree.pre_tree_handler = ngx_http_file_cache_noop;
|
|
|
1244 tree.post_tree_handler = ngx_http_file_cache_noop;
|
|
|
1245 tree.spec_handler = ngx_http_file_cache_delete_file;
|
|
|
1246 tree.data = cache;
|
|
|
1247 tree.alloc = 0;
|
|
|
1248 tree.log = ngx_cycle->log;
|
|
|
1249
|
|
|
1250 cache->last = ngx_current_msec;
|
|
|
1251 cache->files = 0;
|
|
|
1252
|
|
|
1253 if (ngx_walk_tree(&tree, &cache->path->name) == NGX_ABORT) {
|
|
|
1254 cache->sh->loading = 0;
|
|
|
1255 return;
|
|
|
1256 }
|
|
|
1257
|
|
|
1258 cache->sh->cold = 0;
|
|
|
1259 cache->sh->loading = 0;
|
|
|
1260
|
|
|
1261 ngx_log_error(NGX_LOG_NOTICE, ngx_cycle->log, 0,
|
|
|
1262 "http file cache: %V %.3fM, bsize: %uz",
|
|
|
1263 &cache->path->name,
|
|
|
1264 ((double) cache->sh->size * cache->bsize) / (1024 * 1024),
|
|
|
1265 cache->bsize);
|
|
|
1266 }
|
|
|
1267
|
|
|
1268
|
|
464
|
1269 static ngx_int_t
|
|
632
|
1270 ngx_http_file_cache_loader_sleep(ngx_http_file_cache_t *cache)
|
|
468
|
1271 {
|
|
|
1272 ngx_msec_t elapsed;
|
|
|
1273
|
|
|
1274 if (cache->files++ > 100) {
|
|
|
1275
|
|
566
|
1276 ngx_time_update();
|
|
468
|
1277
|
|
|
1278 elapsed = ngx_abs((ngx_msec_int_t) (ngx_current_msec - cache->last));
|
|
|
1279
|
|
|
1280 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, ngx_cycle->log, 0,
|
|
|
1281 "http file cache manager time: %M", elapsed);
|
|
|
1282
|
|
|
1283 if (elapsed > 200) {
|
|
|
1284
|
|
|
1285 /*
|
|
|
1286 * if processing 100 files takes more than 200ms,
|
|
|
1287 * it seems that many operations require disk i/o,
|
|
|
1288 * therefore sleep 200ms
|
|
|
1289 */
|
|
|
1290
|
|
|
1291 ngx_msleep(200);
|
|
|
1292
|
|
566
|
1293 ngx_time_update();
|
|
468
|
1294 }
|
|
|
1295
|
|
|
1296 cache->last = ngx_current_msec;
|
|
|
1297 cache->files = 0;
|
|
|
1298 }
|
|
|
1299
|
|
|
1300 return (ngx_quit || ngx_terminate) ? NGX_ABORT : NGX_OK;
|
|
|
1301 }
|
|
|
1302
|
|
|
1303
|
|
|
1304 static ngx_int_t
|
|
|
1305 ngx_http_file_cache_noop(ngx_tree_ctx_t *ctx, ngx_str_t *path)
|
|
464
|
1306 {
|
|
|
1307 return NGX_OK;
|
|
|
1308 }
|
|
|
1309
|
|
|
1310
|
|
|
1311 static ngx_int_t
|
|
468
|
1312 ngx_http_file_cache_manage_file(ngx_tree_ctx_t *ctx, ngx_str_t *path)
|
|
464
|
1313 {
|
|
468
|
1314 ngx_http_file_cache_t *cache;
|
|
|
1315
|
|
|
1316 cache = ctx->data;
|
|
|
1317
|
|
|
1318 if (ngx_http_file_cache_add_file(ctx, path) != NGX_OK) {
|
|
|
1319 (void) ngx_http_file_cache_delete_file(ctx, path);
|
|
|
1320 }
|
|
|
1321
|
|
632
|
1322 return ngx_http_file_cache_loader_sleep(cache);
|
|
468
|
1323 }
|
|
|
1324
|
|
464
|
1325
|
|
468
|
1326 static ngx_int_t
|
|
|
1327 ngx_http_file_cache_add_file(ngx_tree_ctx_t *ctx, ngx_str_t *name)
|
|
|
1328 {
|
|
632
|
1329 u_char *p;
|
|
|
1330 ngx_int_t n;
|
|
|
1331 ngx_uint_t i;
|
|
|
1332 ngx_http_cache_t c;
|
|
|
1333 ngx_http_file_cache_t *cache;
|
|
468
|
1334
|
|
|
1335 if (name->len < 2 * NGX_HTTP_CACHE_KEY_LEN) {
|
|
|
1336 return NGX_ERROR;
|
|
464
|
1337 }
|
|
|
1338
|
|
632
|
1339 if (ctx->size < (off_t) sizeof(ngx_http_file_cache_header_t)) {
|
|
468
|
1340 ngx_log_error(NGX_LOG_CRIT, ctx->log, 0,
|
|
|
1341 "cache file \"%s\" is too small", name->data);
|
|
|
1342 return NGX_ERROR;
|
|
|
1343 }
|
|
|
1344
|
|
632
|
1345 ngx_memzero(&c, sizeof(ngx_http_cache_t));
|
|
622
|
1346 cache = ctx->data;
|
|
|
1347
|
|
632
|
1348 c.length = ctx->size;
|
|
|
1349 c.fs_size = (ctx->fs_size + cache->bsize - 1) / cache->bsize;
|
|
468
|
1350
|
|
|
1351 p = &name->data[name->len - 2 * NGX_HTTP_CACHE_KEY_LEN];
|
|
464
|
1352
|
|
|
1353 for (i = 0; i < NGX_HTTP_CACHE_KEY_LEN; i++) {
|
|
|
1354 n = ngx_hextoi(p, 2);
|
|
|
1355
|
|
|
1356 if (n == NGX_ERROR) {
|
|
468
|
1357 return NGX_ERROR;
|
|
464
|
1358 }
|
|
|
1359
|
|
|
1360 p += 2;
|
|
|
1361
|
|
468
|
1362 c.key[i] = (u_char) n;
|
|
464
|
1363 }
|
|
|
1364
|
|
468
|
1365 return ngx_http_file_cache_add(cache, &c);
|
|
|
1366 }
|
|
|
1367
|
|
|
1368
|
|
|
1369 static ngx_int_t
|
|
|
1370 ngx_http_file_cache_add(ngx_http_file_cache_t *cache, ngx_http_cache_t *c)
|
|
|
1371 {
|
|
|
1372 ngx_http_file_cache_node_t *fcn;
|
|
|
1373
|
|
464
|
1374 ngx_shmtx_lock(&cache->shpool->mutex);
|
|
|
1375
|
|
468
|
1376 fcn = ngx_http_file_cache_lookup(cache, c->key);
|
|
|
1377
|
|
|
1378 if (fcn == NULL) {
|
|
|
1379
|
|
|
1380 fcn = ngx_slab_alloc_locked(cache->shpool,
|
|
|
1381 sizeof(ngx_http_file_cache_node_t));
|
|
|
1382 if (fcn == NULL) {
|
|
|
1383 ngx_shmtx_unlock(&cache->shpool->mutex);
|
|
|
1384 return NGX_ERROR;
|
|
|
1385 }
|
|
|
1386
|
|
|
1387 ngx_memcpy((u_char *) &fcn->node.key, c->key, sizeof(ngx_rbtree_key_t));
|
|
|
1388
|
|
|
1389 ngx_memcpy(fcn->key, &c->key[sizeof(ngx_rbtree_key_t)],
|
|
|
1390 NGX_HTTP_CACHE_KEY_LEN - sizeof(ngx_rbtree_key_t));
|
|
|
1391
|
|
480
|
1392 ngx_rbtree_insert(&cache->sh->rbtree, &fcn->node);
|
|
468
|
1393
|
|
|
1394 fcn->uses = 1;
|
|
|
1395 fcn->count = 0;
|
|
632
|
1396 fcn->valid_msec = 0;
|
|
468
|
1397 fcn->error = 0;
|
|
|
1398 fcn->exists = 1;
|
|
594
|
1399 fcn->updating = 0;
|
|
596
|
1400 fcn->deleting = 0;
|
|
632
|
1401 fcn->uniq = 0;
|
|
|
1402 fcn->valid_sec = 0;
|
|
|
1403 fcn->body_start = 0;
|
|
622
|
1404 fcn->fs_size = c->fs_size;
|
|
468
|
1405
|
|
622
|
1406 cache->sh->size += c->fs_size;
|
|
468
|
1407
|
|
|
1408 } else {
|
|
|
1409 ngx_queue_remove(&fcn->queue);
|
|
|
1410 }
|
|
|
1411
|
|
|
1412 fcn->expire = ngx_time() + cache->inactive;
|
|
|
1413
|
|
480
|
1414 ngx_queue_insert_head(&cache->sh->queue, &fcn->queue);
|
|
464
|
1415
|
|
|
1416 ngx_shmtx_unlock(&cache->shpool->mutex);
|
|
|
1417
|
|
468
|
1418 return NGX_OK;
|
|
|
1419 }
|
|
|
1420
|
|
464
|
1421
|
|
468
|
1422 static ngx_int_t
|
|
|
1423 ngx_http_file_cache_delete_file(ngx_tree_ctx_t *ctx, ngx_str_t *path)
|
|
|
1424 {
|
|
464
|
1425 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, ctx->log, 0,
|
|
468
|
1426 "http file cache delete: \"%s\"", path->data);
|
|
464
|
1427
|
|
|
1428 if (ngx_delete_file(path->data) == NGX_FILE_ERROR) {
|
|
|
1429 ngx_log_error(NGX_LOG_CRIT, ctx->log, ngx_errno,
|
|
|
1430 ngx_delete_file_n " \"%s\" failed", path->data);
|
|
|
1431 }
|
|
26
|
1432
|
|
0
|
1433 return NGX_OK;
|
|
|
1434 }
|
|
|
1435
|
|
|
1436
|
|
464
|
1437 time_t
|
|
|
1438 ngx_http_file_cache_valid(ngx_array_t *cache_valid, ngx_uint_t status)
|
|
0
|
1439 {
|
|
464
|
1440 ngx_uint_t i;
|
|
|
1441 ngx_http_cache_valid_t *valid;
|
|
0
|
1442
|
|
470
|
1443 if (cache_valid == NULL) {
|
|
|
1444 return 0;
|
|
|
1445 }
|
|
|
1446
|
|
464
|
1447 valid = cache_valid->elts;
|
|
|
1448 for (i = 0; i < cache_valid->nelts; i++) {
|
|
0
|
1449
|
|
464
|
1450 if (valid[i].status == 0) {
|
|
|
1451 return valid[i].valid;
|
|
0
|
1452 }
|
|
|
1453
|
|
464
|
1454 if (valid[i].status == status) {
|
|
|
1455 return valid[i].valid;
|
|
0
|
1456 }
|
|
464
|
1457 }
|
|
0
|
1458
|
|
464
|
1459 return 0;
|
|
0
|
1460 }
|
|
|
1461
|
|
|
1462
|
|
464
|
1463 char *
|
|
|
1464 ngx_http_file_cache_set_slot(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
|
1465 {
|
|
468
|
1466 off_t max_size;
|
|
464
|
1467 u_char *last, *p;
|
|
468
|
1468 time_t inactive;
|
|
464
|
1469 ssize_t size;
|
|
|
1470 ngx_str_t s, name, *value;
|
|
|
1471 ngx_uint_t i, n;
|
|
|
1472 ngx_http_file_cache_t *cache;
|
|
|
1473
|
|
|
1474 cache = ngx_pcalloc(cf->pool, sizeof(ngx_http_file_cache_t));
|
|
|
1475 if (cache == NULL) {
|
|
|
1476 return NGX_CONF_ERROR;
|
|
|
1477 }
|
|
|
1478
|
|
|
1479 cache->path = ngx_pcalloc(cf->pool, sizeof(ngx_path_t));
|
|
|
1480 if (cache->path == NULL) {
|
|
|
1481 return NGX_CONF_ERROR;
|
|
|
1482 }
|
|
|
1483
|
|
|
1484 inactive = 600;
|
|
|
1485
|
|
|
1486 name.len = 0;
|
|
|
1487 size = 0;
|
|
468
|
1488 max_size = NGX_MAX_OFF_T_VALUE;
|
|
464
|
1489
|
|
|
1490 value = cf->args->elts;
|
|
|
1491
|
|
|
1492 cache->path->name = value[1];
|
|
|
1493
|
|
|
1494 if (cache->path->name.data[cache->path->name.len - 1] == '/') {
|
|
|
1495 cache->path->name.len--;
|
|
|
1496 }
|
|
|
1497
|
|
|
1498 if (ngx_conf_full_name(cf->cycle, &cache->path->name, 0) != NGX_OK) {
|
|
|
1499 return NGX_CONF_ERROR;
|
|
|
1500 }
|
|
|
1501
|
|
|
1502 for (i = 2; i < cf->args->nelts; i++) {
|
|
|
1503
|
|
|
1504 if (ngx_strncmp(value[i].data, "levels=", 7) == 0) {
|
|
|
1505
|
|
|
1506 p = value[i].data + 7;
|
|
|
1507 last = value[i].data + value[i].len;
|
|
|
1508
|
|
472
|
1509 for (n = 0; n < 3 && p < last; n++) {
|
|
464
|
1510
|
|
472
|
1511 if (*p > '0' && *p < '3') {
|
|
464
|
1512
|
|
|
1513 cache->path->level[n] = *p++ - '0';
|
|
|
1514 cache->path->len += cache->path->level[n] + 1;
|
|
|
1515
|
|
|
1516 if (p == last) {
|
|
|
1517 break;
|
|
|
1518 }
|
|
|
1519
|
|
472
|
1520 if (*p++ == ':' && n < 2 && p != last) {
|
|
464
|
1521 continue;
|
|
|
1522 }
|
|
472
|
1523
|
|
|
1524 goto invalid_levels;
|
|
464
|
1525 }
|
|
|
1526
|
|
|
1527 goto invalid_levels;
|
|
|
1528 }
|
|
|
1529
|
|
|
1530 if (cache->path->len < 10 + 3) {
|
|
|
1531 continue;
|
|
|
1532 }
|
|
|
1533
|
|
|
1534 invalid_levels:
|
|
|
1535
|
|
|
1536 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
1537 "invalid \"levels\" \"%V\"", &value[i]);
|
|
|
1538 return NGX_CONF_ERROR;
|
|
|
1539 }
|
|
|
1540
|
|
|
1541 if (ngx_strncmp(value[i].data, "keys_zone=", 10) == 0) {
|
|
|
1542
|
|
|
1543 name.data = value[i].data + 10;
|
|
|
1544
|
|
|
1545 p = (u_char *) ngx_strchr(name.data, ':');
|
|
|
1546
|
|
|
1547 if (p) {
|
|
480
|
1548 *p = '\0';
|
|
|
1549
|
|
464
|
1550 name.len = p - name.data;
|
|
|
1551
|
|
|
1552 p++;
|
|
|
1553
|
|
|
1554 s.len = value[i].data + value[i].len - p;
|
|
|
1555 s.data = p;
|
|
|
1556
|
|
|
1557 size = ngx_parse_size(&s);
|
|
|
1558 if (size > 8191) {
|
|
|
1559 continue;
|
|
|
1560 }
|
|
|
1561 }
|
|
|
1562
|
|
|
1563 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
1564 "invalid keys zone size \"%V\"", &value[i]);
|
|
|
1565 return NGX_CONF_ERROR;
|
|
|
1566 }
|
|
|
1567
|
|
|
1568 if (ngx_strncmp(value[i].data, "inactive=", 9) == 0) {
|
|
|
1569
|
|
|
1570 s.len = value[i].len - 9;
|
|
|
1571 s.data = value[i].data + 9;
|
|
|
1572
|
|
|
1573 inactive = ngx_parse_time(&s, 1);
|
|
|
1574 if (inactive < 0) {
|
|
|
1575 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
1576 "invalid inactive value \"%V\"", &value[i]);
|
|
|
1577 return NGX_CONF_ERROR;
|
|
|
1578 }
|
|
|
1579
|
|
|
1580 continue;
|
|
|
1581 }
|
|
|
1582
|
|
468
|
1583 if (ngx_strncmp(value[i].data, "max_size=", 9) == 0) {
|
|
464
|
1584
|
|
468
|
1585 s.len = value[i].len - 9;
|
|
|
1586 s.data = value[i].data + 9;
|
|
464
|
1587
|
|
468
|
1588 max_size = ngx_parse_offset(&s);
|
|
|
1589 if (max_size < 0) {
|
|
464
|
1590 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
468
|
1591 "invalid max_size value \"%V\"", &value[i]);
|
|
464
|
1592 return NGX_CONF_ERROR;
|
|
|
1593 }
|
|
|
1594
|
|
|
1595 continue;
|
|
|
1596 }
|
|
|
1597
|
|
|
1598 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
1599 "invalid parameter \"%V\"", &value[i]);
|
|
|
1600 return NGX_CONF_ERROR;
|
|
|
1601 }
|
|
|
1602
|
|
|
1603 if (name.len == 0 || size == 0) {
|
|
|
1604 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
1605 "\"%V\" must have \"keys_zone\" parameter",
|
|
|
1606 &cmd->name);
|
|
|
1607 return NGX_CONF_ERROR;
|
|
|
1608 }
|
|
|
1609
|
|
468
|
1610 cache->path->manager = ngx_http_file_cache_manager;
|
|
514
|
1611 cache->path->loader = ngx_http_file_cache_loader;
|
|
464
|
1612 cache->path->data = cache;
|
|
632
|
1613 cache->path->conf_file = cf->conf_file->file.name.data;
|
|
|
1614 cache->path->line = cf->conf_file->line;
|
|
464
|
1615
|
|
|
1616 if (ngx_add_path(cf, &cache->path) != NGX_OK) {
|
|
|
1617 return NGX_CONF_ERROR;
|
|
|
1618 }
|
|
|
1619
|
|
|
1620 cache->shm_zone = ngx_shared_memory_add(cf, &name, size, cmd->post);
|
|
|
1621 if (cache->shm_zone == NULL) {
|
|
|
1622 return NGX_CONF_ERROR;
|
|
|
1623 }
|
|
|
1624
|
|
|
1625 if (cache->shm_zone->data) {
|
|
|
1626 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
1627 "duplicate zone \"%V\"", &name);
|
|
|
1628 return NGX_CONF_ERROR;
|
|
|
1629 }
|
|
|
1630
|
|
|
1631
|
|
|
1632 cache->shm_zone->init = ngx_http_file_cache_init;
|
|
|
1633 cache->shm_zone->data = cache;
|
|
|
1634
|
|
|
1635 cache->inactive = inactive;
|
|
468
|
1636 cache->max_size = max_size;
|
|
464
|
1637
|
|
|
1638 return NGX_CONF_OK;
|
|
|
1639 }
|
|
26
|
1640
|
|
|
1641
|
|
464
|
1642 char *
|
|
|
1643 ngx_http_file_cache_valid_set_slot(ngx_conf_t *cf, ngx_command_t *cmd,
|
|
|
1644 void *conf)
|
|
0
|
1645 {
|
|
464
|
1646 char *p = conf;
|
|
0
|
1647
|
|
464
|
1648 time_t valid;
|
|
|
1649 ngx_str_t *value;
|
|
|
1650 ngx_uint_t i, n, status;
|
|
|
1651 ngx_array_t **a;
|
|
|
1652 ngx_http_cache_valid_t *v;
|
|
|
1653 static ngx_uint_t statuses[] = { 200, 301, 302 };
|
|
26
|
1654
|
|
464
|
1655 a = (ngx_array_t **) (p + cmd->offset);
|
|
0
|
1656
|
|
464
|
1657 if (*a == NGX_CONF_UNSET_PTR) {
|
|
|
1658 *a = ngx_array_create(cf->pool, 1, sizeof(ngx_http_cache_valid_t));
|
|
|
1659 if (*a == NULL) {
|
|
|
1660 return NGX_CONF_ERROR;
|
|
|
1661 }
|
|
|
1662 }
|
|
0
|
1663
|
|
464
|
1664 value = cf->args->elts;
|
|
|
1665 n = cf->args->nelts - 1;
|
|
0
|
1666
|
|
464
|
1667 valid = ngx_parse_time(&value[n], 1);
|
|
|
1668 if (valid < 0) {
|
|
|
1669 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
1670 "invalid time value \"%V\"", &value[n]);
|
|
|
1671 return NGX_CONF_ERROR;
|
|
0
|
1672 }
|
|
|
1673
|
|
464
|
1674 if (n == 1) {
|
|
|
1675
|
|
|
1676 for (i = 0; i < 3; i++) {
|
|
|
1677 v = ngx_array_push(*a);
|
|
|
1678 if (v == NULL) {
|
|
|
1679 return NGX_CONF_ERROR;
|
|
|
1680 }
|
|
|
1681
|
|
|
1682 v->status = statuses[i];
|
|
|
1683 v->valid = valid;
|
|
|
1684 }
|
|
|
1685
|
|
|
1686 return NGX_CONF_OK;
|
|
0
|
1687 }
|
|
|
1688
|
|
464
|
1689 for (i = 1; i < n; i++) {
|
|
|
1690
|
|
|
1691 if (ngx_strcmp(value[i].data, "any") == 0) {
|
|
|
1692
|
|
|
1693 status = 0;
|
|
|
1694
|
|
|
1695 } else {
|
|
0
|
1696
|
|
464
|
1697 status = ngx_atoi(value[i].data, value[i].len);
|
|
|
1698 if (status < 100) {
|
|
|
1699 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
1700 "invalid status \"%V\"", &value[i]);
|
|
|
1701 return NGX_CONF_ERROR;
|
|
|
1702 }
|
|
|
1703 }
|
|
|
1704
|
|
|
1705 v = ngx_array_push(*a);
|
|
|
1706 if (v == NULL) {
|
|
|
1707 return NGX_CONF_ERROR;
|
|
|
1708 }
|
|
|
1709
|
|
|
1710 v->status = status;
|
|
|
1711 v->valid = valid;
|
|
|
1712 }
|
|
|
1713
|
|
|
1714 return NGX_CONF_OK;
|
|
0
|
1715 }
|
