2003-05-29 21:02:09 +08:00
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2003-11-03 06:56:18 +08:00
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#include <ngx_config.h>
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#include <ngx_core.h>
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#include <ngx_http.h>
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2003-11-19 05:34:08 +08:00
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2003-11-03 06:56:18 +08:00
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#include <md5.h>
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2003-11-17 05:49:42 +08:00
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#if (HAVE_OPENSSL_MD5)
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2003-11-12 06:16:11 +08:00
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#define MD5Init MD5_Init
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#define MD5Update MD5_Update
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#define MD5Final MD5_Final
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#endif
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2003-11-03 06:56:18 +08:00
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2003-11-26 04:44:56 +08:00
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static int ngx_crc(char *data, size_t len);
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static void *ngx_http_cache_create_conf(ngx_conf_t *cf);
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static char *ngx_http_core_merge_loc_conf(ngx_conf_t *cf,
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void *parent, void *child);
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static ngx_http_module_t ngx_http_cache_module_ctx = {
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NULL, /* pre conf */
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NULL, /* create main configuration */
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NULL, /* init main configuration */
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NULL, /* create server configuration */
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NULL, /* merge server configuration */
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ngx_http_cache_create_conf, /* create location configuration */
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ngx_http_core_merge_loc_conf /* merge location configuration */
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};
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ngx_module_t ngx_http_cache_module = {
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NGX_MODULE,
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&ngx_http_cache_module_ctx, /* module context */
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NULL, /* module directives */
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NGX_HTTP_MODULE, /* module type */
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NULL, /* init module */
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NULL /* init child */
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};
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2003-11-03 06:56:18 +08:00
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int ngx_http_cache_get_file(ngx_http_request_t *r, ngx_http_cache_ctx_t *ctx)
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{
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2003-11-10 04:03:38 +08:00
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MD5_CTX md5;
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2003-11-04 01:33:31 +08:00
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2003-11-26 04:44:56 +08:00
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/* we use offsetof() because sizeof() pads struct size to int size */
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ctx->header_size = offsetof(ngx_http_cache_header_t, key)
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+ ctx->key.len + 1;
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2003-11-03 06:56:18 +08:00
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ctx->file.name.len = ctx->path->name.len + 1 + ctx->path->len + 32;
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if (!(ctx->file.name.data = ngx_palloc(r->pool, ctx->file.name.len + 1))) {
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return NGX_ERROR;
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}
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ngx_memcpy(ctx->file.name.data, ctx->path->name.data, ctx->path->name.len);
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MD5Init(&md5);
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MD5Update(&md5, (u_char *) ctx->key.data, ctx->key.len);
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2003-11-05 06:12:39 +08:00
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MD5Final(ctx->md5, &md5);
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2003-11-06 01:03:41 +08:00
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ngx_md5_text(ctx->file.name.data + ctx->path->name.len + 1 + ctx->path->len,
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2003-11-05 06:12:39 +08:00
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ctx->md5);
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2003-11-03 06:56:18 +08:00
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ngx_log_debug(r->connection->log, "URL: %s, md5: %s" _ ctx->key.data _
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ctx->file.name.data + ctx->path->name.len + 1 + ctx->path->len);
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ngx_create_hashed_filename(&ctx->file, ctx->path);
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ngx_log_debug(r->connection->log, "FILE: %s" _ ctx->file.name.data);
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/* TODO: look open files cache */
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2003-11-19 05:34:08 +08:00
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return ngx_http_cache_open_file(ctx, 0);
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2003-11-10 04:03:38 +08:00
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}
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2003-11-27 15:45:22 +08:00
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ngx_http_cache_t *ngx_http_cache_get(ngx_http_cache_hash_t *cache,
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ngx_str_t *key, uint32_t *crc)
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2003-11-26 04:44:56 +08:00
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{
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2003-11-27 15:45:22 +08:00
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ngx_uint_t i;
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ngx_http_cache_t *c;
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2003-11-26 04:44:56 +08:00
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2003-11-27 15:45:22 +08:00
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*crc = ngx_crc(key->data, key->len);
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2003-11-26 04:44:56 +08:00
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2003-11-28 16:40:40 +08:00
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c = cache->elts + *crc % cache->hash * cache->nelts;
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ngx_mutex_lock(&cache->mutex);
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2003-11-27 15:45:22 +08:00
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for (i = 0; i < cache->nelts; i++) {
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if (c[i].crc == *crc
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&& c[i].key.len == key->len
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&& ngx_rstrncmp(c[i].key.data, key->data, key->len) == 0)
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2003-11-26 04:44:56 +08:00
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{
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2003-11-27 15:45:22 +08:00
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c[i].refs++;
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2003-11-28 16:40:40 +08:00
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ngx_mutex_unlock(&cache->mutex);
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2003-11-27 15:45:22 +08:00
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return &c[i];
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2003-11-26 04:44:56 +08:00
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}
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}
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2003-11-28 16:40:40 +08:00
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ngx_mutex_unlock(&cache->mutex);
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2003-11-27 15:45:22 +08:00
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return NULL;
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2003-11-26 04:44:56 +08:00
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}
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2003-11-27 15:45:22 +08:00
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ngx_http_cache_t *ngx_http_cache_alloc(ngx_http_cache_hash_t *cache,
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ngx_str_t *key, uint32_t crc,
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ngx_log_t *log)
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2003-11-26 04:44:56 +08:00
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{
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2003-11-27 15:45:22 +08:00
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time_t old;
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ngx_uint_t i;
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ngx_http_cache_t *c, *found;
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2003-11-26 04:44:56 +08:00
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2003-11-28 16:40:40 +08:00
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old = ngx_cached_time + 1;
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2003-11-27 15:45:22 +08:00
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found = NULL;
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2003-11-26 04:44:56 +08:00
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2003-11-28 16:40:40 +08:00
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c = cache->elts + crc % cache->hash * cache->nelts;
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ngx_mutex_lock(&cache->mutex);
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2003-11-27 15:45:22 +08:00
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for (i = 0; i < cache->nelts; i++) {
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2003-11-28 16:40:40 +08:00
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if (c[i].refs > 0) {
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/* a busy entry */
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continue;
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}
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2003-11-26 04:44:56 +08:00
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2003-11-28 16:40:40 +08:00
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if (c[i].key.data == NULL) {
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2003-11-26 04:44:56 +08:00
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/* a free entry is found */
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2003-11-27 15:45:22 +08:00
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found = &c[i];
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2003-11-26 04:44:56 +08:00
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break;
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}
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2003-11-28 16:40:40 +08:00
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/* looking for the oldest cache entry */
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2003-11-26 04:44:56 +08:00
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2003-11-28 16:40:40 +08:00
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if (old > c[i].accessed) {
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2003-11-27 15:45:22 +08:00
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old = c[i].accessed;
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found = &c[i];
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2003-11-26 04:44:56 +08:00
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}
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}
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2003-11-27 15:45:22 +08:00
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if (found) {
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if (found->key.data) {
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if (key->len > found->key.len) {
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ngx_free(found->key.data);
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found->key.data = NULL;
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2003-11-26 04:44:56 +08:00
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}
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}
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2003-11-27 15:45:22 +08:00
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if (found->key.data == NULL) {
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found->key.data = ngx_alloc(key->len, log);
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if (found->key.data == NULL) {
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2003-11-28 16:40:40 +08:00
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ngx_mutex_unlock(&cache->mutex);
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2003-11-26 04:44:56 +08:00
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return NULL;
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}
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}
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2003-11-27 15:45:22 +08:00
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ngx_memcpy(found->key.data, key->data, key->len);
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2003-11-26 04:44:56 +08:00
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2003-11-27 15:45:22 +08:00
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found->crc = crc;
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found->key.len = key->len;
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found->refs = 1;
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2003-11-28 16:40:40 +08:00
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found->count = 0;
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2003-11-27 15:45:22 +08:00
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found->deleted = 0;
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2003-11-26 04:44:56 +08:00
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}
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2003-11-28 16:40:40 +08:00
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ngx_mutex_unlock(&cache->mutex);
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2003-11-27 15:45:22 +08:00
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return found;
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2003-11-26 04:44:56 +08:00
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}
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2003-11-10 04:03:38 +08:00
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2003-11-29 01:41:47 +08:00
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void ngx_http_cache_unlock(ngx_http_cache_hash_t *hash,
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ngx_http_cache_t *cache, ngx_log_t *log)
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{
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ngx_mutex_lock(&hash->mutex);
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cache->refs--;
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if (cache->refs == 0 && cache->deleted) {
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ngx_log_debug(log, "CLOSE FILE: %d" _ cache->fd);
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if (cache->fd != NGX_INVALID_FILE) {
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if (ngx_close_file(cache->fd) == NGX_FILE_ERROR) {
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ngx_log_error(NGX_LOG_ALERT, log, ngx_errno,
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ngx_close_file_n " \"%s\" failed",
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cache->key.data);
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}
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}
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cache->key.data = NULL;
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}
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ngx_mutex_unlock(&hash->mutex);
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}
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2003-11-19 05:34:08 +08:00
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int ngx_http_cache_open_file(ngx_http_cache_ctx_t *ctx, ngx_file_uniq_t uniq)
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2003-11-10 04:03:38 +08:00
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{
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ssize_t n;
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ngx_err_t err;
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ngx_http_cache_header_t *h;
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2003-11-03 06:56:18 +08:00
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ctx->file.fd = ngx_open_file(ctx->file.name.data,
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NGX_FILE_RDONLY, NGX_FILE_OPEN);
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if (ctx->file.fd == NGX_INVALID_FILE) {
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err = ngx_errno;
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if (err == NGX_ENOENT || err == NGX_ENOTDIR) {
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return NGX_DECLINED;
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}
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2003-11-19 05:34:08 +08:00
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ngx_log_error(NGX_LOG_CRIT, ctx->log, ngx_errno,
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2003-11-03 06:56:18 +08:00
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ngx_open_file_n " \"%s\" failed", ctx->file.name.data);
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return NGX_ERROR;
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}
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2003-11-10 04:03:38 +08:00
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if (uniq) {
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2003-11-17 05:49:42 +08:00
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if (ngx_fd_info(ctx->file.fd, &ctx->file.info) == NGX_FILE_ERROR) {
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2003-11-19 05:34:08 +08:00
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ngx_log_error(NGX_LOG_CRIT, ctx->log, ngx_errno,
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2003-11-17 05:49:42 +08:00
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ngx_fd_info_n " \"%s\" failed", ctx->file.name.data);
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2003-11-10 04:03:38 +08:00
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return NGX_ERROR;
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}
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2003-11-17 05:49:42 +08:00
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if (ngx_file_uniq(&ctx->file.info) == uniq) {
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2003-11-10 04:03:38 +08:00
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if (ngx_close_file(ctx->file.fd) == NGX_FILE_ERROR) {
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2003-11-19 05:34:08 +08:00
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ngx_log_error(NGX_LOG_ALERT, ctx->log, ngx_errno,
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2003-11-10 04:03:38 +08:00
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ngx_close_file_n " \"%s\" failed",
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ctx->file.name.data);
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}
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return NGX_HTTP_CACHE_THE_SAME;
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}
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}
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2003-11-03 06:56:18 +08:00
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n = ngx_read_file(&ctx->file, ctx->buf->pos,
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ctx->buf->end - ctx->buf->last, 0);
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if (n == NGX_ERROR || n == NGX_AGAIN) {
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return n;
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}
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2003-11-04 01:33:31 +08:00
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if (n <= ctx->header_size) {
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2003-11-19 05:34:08 +08:00
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ngx_log_error(NGX_LOG_CRIT, ctx->log, 0,
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2003-11-04 01:33:31 +08:00
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"cache file \"%s\" is too small", ctx->file.name.data);
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2003-11-03 06:56:18 +08:00
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return NGX_ERROR;
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}
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2003-11-05 06:12:39 +08:00
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h = (ngx_http_cache_header_t *) ctx->buf->pos;
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ctx->expires = h->expires;
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ctx->last_modified= h->last_modified;
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ctx->date = h->date;
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ctx->length = h->length;
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2003-11-04 01:33:31 +08:00
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2003-11-20 00:26:41 +08:00
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if (h->key_len > (size_t) (ctx->buf->end - ctx->buf->pos)) {
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2003-11-19 05:34:08 +08:00
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ngx_log_error(NGX_LOG_ALERT, ctx->log, 0,
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2003-11-19 00:49:00 +08:00
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"cache file \"%s\" is probably invalid",
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ctx->file.name.data);
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return NGX_DECLINED;
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}
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2003-11-19 05:34:08 +08:00
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if (ctx->key.len
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&& (h->key_len != ctx->key.len
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|| ngx_strncmp(h->key, ctx->key.data, h->key_len) != 0))
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2003-11-03 06:56:18 +08:00
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{
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2003-11-04 01:33:31 +08:00
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h->key[h->key_len] = '\0';
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2003-11-19 05:34:08 +08:00
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ngx_log_error(NGX_LOG_ALERT, ctx->log, 0,
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2003-11-03 06:56:18 +08:00
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"md5 collision: \"%s\" and \"%s\"",
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2003-11-04 01:33:31 +08:00
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h->key, ctx->key.data);
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2003-11-03 06:56:18 +08:00
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return NGX_DECLINED;
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}
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ctx->buf->last += n;
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2003-11-05 06:12:39 +08:00
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if (ctx->expires < ngx_time()) {
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2003-11-19 05:34:08 +08:00
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ngx_log_debug(ctx->log, "EXPIRED");
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2003-11-04 06:20:44 +08:00
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return NGX_HTTP_CACHE_STALE;
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2003-11-04 01:33:31 +08:00
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}
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2003-11-04 06:20:44 +08:00
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/* TODO: NGX_HTTP_CACHE_AGED */
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2003-11-03 06:56:18 +08:00
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return NGX_OK;
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}
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2003-11-26 04:44:56 +08:00
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int ngx_http_cache_update_file(ngx_http_request_t *r, ngx_http_cache_ctx_t *ctx,
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ngx_str_t *temp_file)
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{
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int retry;
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ngx_err_t err;
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retry = 0;
|
|
|
|
|
|
|
|
for ( ;; ) {
|
|
|
|
if (ngx_rename_file(temp_file->data, ctx->file.name.data) == NGX_OK) {
|
|
|
|
return NGX_OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
err = ngx_errno;
|
|
|
|
|
|
|
|
#if (WIN32)
|
|
|
|
if (err == NGX_EEXIST) {
|
|
|
|
if (ngx_win32_rename_file(temp_file, &ctx->file.name, r->pool)
|
|
|
|
== NGX_ERROR)
|
|
|
|
{
|
|
|
|
return NGX_ERROR;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
|
|
|
if (retry || (err != NGX_ENOENT && err != NGX_ENOTDIR)) {
|
|
|
|
ngx_log_error(NGX_LOG_CRIT, r->connection->log, ngx_errno,
|
|
|
|
ngx_rename_file_n "(\"%s\", \"%s\") failed",
|
|
|
|
temp_file->data, ctx->file.name.data);
|
|
|
|
|
|
|
|
return NGX_ERROR;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (ngx_create_path(&ctx->file, ctx->path) == NGX_ERROR) {
|
|
|
|
return NGX_ERROR;
|
|
|
|
}
|
|
|
|
|
|
|
|
retry = 1;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2003-11-19 05:34:08 +08:00
|
|
|
int ngx_garbage_collector_http_cache_handler(ngx_gc_t *gc, ngx_str_t *name,
|
|
|
|
ngx_dir_t *dir)
|
|
|
|
{
|
|
|
|
int rc;
|
|
|
|
char data[sizeof(ngx_http_cache_header_t)];
|
|
|
|
ngx_hunk_t buf;
|
|
|
|
ngx_http_cache_ctx_t ctx;
|
|
|
|
|
|
|
|
ctx.file.fd = NGX_INVALID_FILE;
|
|
|
|
ctx.file.name = *name;
|
|
|
|
ctx.file.log = gc->log;
|
|
|
|
|
|
|
|
ctx.header_size = sizeof(ngx_http_cache_header_t);
|
|
|
|
ctx.buf = &buf;
|
|
|
|
ctx.log = gc->log;
|
|
|
|
ctx.key.len = 0;
|
|
|
|
|
|
|
|
buf.type = NGX_HUNK_IN_MEMORY|NGX_HUNK_TEMP;
|
|
|
|
buf.pos = data;
|
|
|
|
buf.last = data;
|
|
|
|
buf.start = data;
|
|
|
|
buf.end = data + sizeof(ngx_http_cache_header_t);
|
|
|
|
|
|
|
|
rc = ngx_http_cache_open_file(&ctx, 0);
|
|
|
|
|
|
|
|
/* TODO: NGX_AGAIN */
|
|
|
|
|
|
|
|
if (rc != NGX_ERROR && rc != NGX_DECLINED && rc != NGX_HTTP_CACHE_STALE) {
|
|
|
|
return NGX_OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (ngx_delete_file(name->data) == NGX_FILE_ERROR) {
|
|
|
|
ngx_log_error(NGX_LOG_CRIT, gc->log, ngx_errno,
|
|
|
|
ngx_delete_file_n " \"%s\" failed", name->data);
|
|
|
|
return NGX_ERROR;
|
|
|
|
}
|
|
|
|
|
|
|
|
gc->deleted++;
|
|
|
|
gc->freed += ngx_de_size(dir);
|
|
|
|
|
|
|
|
return NGX_OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2003-11-26 04:44:56 +08:00
|
|
|
/* 32-bit crc16 */
|
|
|
|
|
|
|
|
static int ngx_crc(char *data, size_t len)
|
2003-11-03 06:56:18 +08:00
|
|
|
{
|
2003-11-26 04:44:56 +08:00
|
|
|
uint32_t sum;
|
2003-11-03 06:56:18 +08:00
|
|
|
|
2003-11-26 04:44:56 +08:00
|
|
|
for (sum = 0; len; len--) {
|
|
|
|
/*
|
|
|
|
* gcc 2.95.2 x86 and icc 7.1.006 compile that operator
|
|
|
|
* into the single rol opcode.
|
|
|
|
* msvc 6.0sp2 compiles it into four opcodes.
|
|
|
|
*/
|
|
|
|
sum = sum >> 1 | sum << 31;
|
2003-11-03 06:56:18 +08:00
|
|
|
|
2003-11-26 04:44:56 +08:00
|
|
|
sum += *data++;
|
|
|
|
}
|
2003-11-03 06:56:18 +08:00
|
|
|
|
2003-11-26 04:44:56 +08:00
|
|
|
return sum;
|
|
|
|
}
|
2003-11-03 06:56:18 +08:00
|
|
|
|
2003-11-17 05:49:42 +08:00
|
|
|
|
2003-11-26 04:44:56 +08:00
|
|
|
static void *ngx_http_cache_create_conf(ngx_conf_t *cf)
|
|
|
|
{
|
|
|
|
ngx_http_cache_conf_t *conf;
|
2003-11-03 06:56:18 +08:00
|
|
|
|
2003-11-26 04:44:56 +08:00
|
|
|
if (!(conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_cache_conf_t)))) {
|
|
|
|
return NGX_CONF_ERROR;
|
|
|
|
}
|
2003-11-03 06:56:18 +08:00
|
|
|
|
2003-11-26 04:44:56 +08:00
|
|
|
return conf;
|
|
|
|
}
|
2003-11-03 06:56:18 +08:00
|
|
|
|
2003-11-26 04:44:56 +08:00
|
|
|
|
|
|
|
static char *ngx_http_core_merge_loc_conf(ngx_conf_t *cf,
|
|
|
|
void *parent, void *child)
|
|
|
|
{
|
|
|
|
ngx_http_cache_conf_t *prev = parent;
|
|
|
|
ngx_http_cache_conf_t *conf = child;
|
|
|
|
|
2003-11-28 16:40:40 +08:00
|
|
|
if (conf->open_files == NULL) {
|
|
|
|
conf->open_files = prev->open_files;
|
|
|
|
}
|
|
|
|
|
|
|
|
#if 0
|
2003-11-27 15:45:22 +08:00
|
|
|
if (conf->open_files == NULL) {
|
|
|
|
if (prev->open_files) {
|
|
|
|
conf->open_files = prev->open_files;
|
2003-11-26 04:44:56 +08:00
|
|
|
|
|
|
|
} else {
|
2003-11-27 15:45:22 +08:00
|
|
|
conf->open_files = ngx_pcalloc(cf->pool,
|
|
|
|
sizeof(ngx_http_cache_hash_t));
|
|
|
|
if (conf->open_files == NULL) {
|
2003-11-26 04:44:56 +08:00
|
|
|
return NGX_CONF_ERROR;
|
|
|
|
}
|
|
|
|
|
2003-11-27 15:45:22 +08:00
|
|
|
conf->open_files->hash = NGX_HTTP_CACHE_HASH;
|
|
|
|
conf->open_files->nelts = NGX_HTTP_CACHE_NELTS;
|
2003-11-26 04:44:56 +08:00
|
|
|
|
2003-11-27 15:45:22 +08:00
|
|
|
conf->open_files->elts = ngx_pcalloc(cf->pool,
|
|
|
|
NGX_HTTP_CACHE_HASH
|
|
|
|
* NGX_HTTP_CACHE_NELTS
|
|
|
|
* sizeof(ngx_http_cache_t));
|
|
|
|
if (conf->open_files->elts == NULL) {
|
2003-11-26 04:44:56 +08:00
|
|
|
return NGX_CONF_ERROR;
|
|
|
|
}
|
|
|
|
}
|
2003-11-03 06:56:18 +08:00
|
|
|
}
|
2003-11-28 16:40:40 +08:00
|
|
|
#endif
|
|
|
|
|
|
|
|
return NGX_CONF_OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
char *ngx_http_set_cache_slot(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
|
|
{
|
|
|
|
char *p = conf;
|
|
|
|
|
|
|
|
ngx_int_t i, dup, invalid;
|
|
|
|
ngx_str_t *value, line;
|
|
|
|
ngx_http_cache_hash_t *ch, **chp;
|
|
|
|
|
|
|
|
chp = (ngx_http_cache_hash_t **) (p + cmd->offset);
|
|
|
|
if (*chp) {
|
|
|
|
return "is duplicate";
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!(ch = ngx_pcalloc(cf->pool, sizeof(ngx_http_cache_hash_t)))) {
|
|
|
|
return NGX_CONF_ERROR;
|
|
|
|
}
|
|
|
|
*chp = ch;
|
|
|
|
|
|
|
|
dup = 0;
|
|
|
|
invalid = 0;
|
|
|
|
|
|
|
|
value = cf->args->elts;
|
|
|
|
|
|
|
|
for (i = 1; i < cf->args->nelts; i++) {
|
|
|
|
|
|
|
|
if (value[i].data[1] != '=') {
|
|
|
|
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
|
"invalid value \"%s\"", value[i].data);
|
|
|
|
return NGX_CONF_ERROR;
|
|
|
|
}
|
|
|
|
|
|
|
|
switch (value[i].data[0]) {
|
|
|
|
|
|
|
|
case 'h':
|
|
|
|
if (ch->hash) {
|
|
|
|
dup = 1;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
ch->hash = ngx_atoi(value[i].data + 2, value[i].len - 2);
|
|
|
|
if (ch->hash == (size_t) NGX_ERROR || ch->hash == 0) {
|
|
|
|
invalid = 1;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
continue;
|
|
|
|
|
|
|
|
case 'n':
|
|
|
|
if (ch->nelts) {
|
|
|
|
dup = 1;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
ch->nelts = ngx_atoi(value[i].data + 2, value[i].len - 2);
|
|
|
|
if (ch->nelts == (size_t) NGX_ERROR || ch->nelts == 0) {
|
|
|
|
invalid = 1;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
continue;
|
|
|
|
|
|
|
|
case 'l':
|
|
|
|
if (ch->life) {
|
|
|
|
dup = 1;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
line.len = value[i].len - 2;
|
|
|
|
line.data = value[i].data + 2;
|
|
|
|
|
|
|
|
ch->life = ngx_parse_time(&line, 1);
|
|
|
|
if (ch->life == NGX_ERROR || ch->life == 0) {
|
|
|
|
invalid = 1;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
continue;
|
|
|
|
|
|
|
|
case 'u':
|
|
|
|
if (ch->update) {
|
|
|
|
dup = 1;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
line.len = value[i].len - 2;
|
|
|
|
line.data = value[i].data + 2;
|
|
|
|
|
|
|
|
ch->update = ngx_parse_time(&line, 1);
|
|
|
|
if (ch->update == NGX_ERROR || ch->update == 0) {
|
|
|
|
invalid = 1;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
continue;
|
|
|
|
|
|
|
|
default:
|
|
|
|
invalid = 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (dup) {
|
|
|
|
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
|
"duplicate value \"%s\"", value[i].data);
|
|
|
|
return NGX_CONF_ERROR;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (invalid) {
|
|
|
|
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
|
"invalid value \"%s\"", value[i].data);
|
|
|
|
return NGX_CONF_ERROR;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
ch->elts = ngx_pcalloc(cf->pool,
|
|
|
|
ch->hash * ch->nelts * sizeof(ngx_http_cache_t));
|
|
|
|
if (ch->elts == NULL) {
|
|
|
|
return NGX_CONF_ERROR;
|
|
|
|
}
|
2003-11-26 04:44:56 +08:00
|
|
|
|
|
|
|
return NGX_CONF_OK;
|
2003-11-03 06:56:18 +08:00
|
|
|
}
|