2003-12-02 00:28:14 +08:00
|
|
|
|
2004-09-28 16:34:51 +08:00
|
|
|
/*
|
2004-09-30 00:00:49 +08:00
|
|
|
* Copyright (C) Igor Sysoev
|
2004-09-28 16:34:51 +08:00
|
|
|
*/
|
|
|
|
|
|
|
|
|
2003-12-02 00:28:14 +08:00
|
|
|
#include <ngx_config.h>
|
|
|
|
#include <ngx_core.h>
|
|
|
|
#include <ngx_http.h>
|
2009-03-23 21:14:51 +08:00
|
|
|
#include <ngx_md5.h>
|
2003-12-02 00:28:14 +08:00
|
|
|
|
|
|
|
|
2009-08-28 16:12:35 +08:00
|
|
|
static ngx_int_t ngx_http_file_cache_read(ngx_http_request_t *r,
|
|
|
|
ngx_http_cache_t *c);
|
2009-11-05 21:12:30 +08:00
|
|
|
static ssize_t ngx_http_file_cache_aio_read(ngx_http_request_t *r,
|
|
|
|
ngx_http_cache_t *c);
|
2009-08-28 16:12:35 +08:00
|
|
|
#if (NGX_HAVE_FILE_AIO)
|
|
|
|
static void ngx_http_cache_aio_event_handler(ngx_event_t *ev);
|
|
|
|
#endif
|
2009-03-30 15:45:55 +08:00
|
|
|
static ngx_int_t ngx_http_file_cache_exists(ngx_http_file_cache_t *cache,
|
|
|
|
ngx_http_cache_t *c);
|
2010-07-15 21:46:32 +08:00
|
|
|
static ngx_int_t ngx_http_file_cache_name(ngx_http_request_t *r,
|
|
|
|
ngx_path_t *path);
|
2009-03-23 21:14:51 +08:00
|
|
|
static ngx_http_file_cache_node_t *
|
|
|
|
ngx_http_file_cache_lookup(ngx_http_file_cache_t *cache, u_char *key);
|
|
|
|
static void ngx_http_file_cache_rbtree_insert_value(ngx_rbtree_node_t *temp,
|
|
|
|
ngx_rbtree_node_t *node, ngx_rbtree_node_t *sentinel);
|
|
|
|
static void ngx_http_file_cache_cleanup(void *data);
|
2009-03-30 15:45:55 +08:00
|
|
|
static time_t ngx_http_file_cache_forced_expire(ngx_http_file_cache_t *cache);
|
|
|
|
static time_t ngx_http_file_cache_expire(ngx_http_file_cache_t *cache);
|
|
|
|
static void ngx_http_file_cache_delete(ngx_http_file_cache_t *cache,
|
|
|
|
ngx_queue_t *q, u_char *name);
|
|
|
|
static ngx_int_t
|
|
|
|
ngx_http_file_cache_manager_sleep(ngx_http_file_cache_t *cache);
|
|
|
|
static ngx_int_t ngx_http_file_cache_noop(ngx_tree_ctx_t *ctx,
|
|
|
|
ngx_str_t *path);
|
|
|
|
static ngx_int_t ngx_http_file_cache_manage_file(ngx_tree_ctx_t *ctx,
|
2009-03-23 21:14:51 +08:00
|
|
|
ngx_str_t *path);
|
2009-03-30 15:45:55 +08:00
|
|
|
static ngx_int_t ngx_http_file_cache_add_file(ngx_tree_ctx_t *ctx,
|
|
|
|
ngx_str_t *path);
|
|
|
|
static ngx_int_t ngx_http_file_cache_add(ngx_http_file_cache_t *cache,
|
|
|
|
ngx_http_cache_t *c);
|
|
|
|
static ngx_int_t ngx_http_file_cache_delete_file(ngx_tree_ctx_t *ctx,
|
2009-03-23 21:14:51 +08:00
|
|
|
ngx_str_t *path);
|
2003-12-02 00:28:14 +08:00
|
|
|
|
|
|
|
|
2009-06-18 21:34:47 +08:00
|
|
|
ngx_str_t ngx_http_cache_status[] = {
|
|
|
|
ngx_string("MISS"),
|
2010-07-19 17:36:04 +08:00
|
|
|
ngx_string("BYPASS"),
|
2009-06-18 21:34:47 +08:00
|
|
|
ngx_string("EXPIRED"),
|
|
|
|
ngx_string("STALE"),
|
|
|
|
ngx_string("UPDATING"),
|
|
|
|
ngx_string("HIT")
|
|
|
|
};
|
|
|
|
|
|
|
|
|
2009-03-23 21:14:51 +08:00
|
|
|
static u_char ngx_http_file_cache_key[] = { LF, 'K', 'E', 'Y', ':', ' ' };
|
2003-12-02 00:28:14 +08:00
|
|
|
|
2009-03-23 21:14:51 +08:00
|
|
|
|
|
|
|
static ngx_int_t
|
|
|
|
ngx_http_file_cache_init(ngx_shm_zone_t *shm_zone, void *data)
|
2003-12-02 00:28:14 +08:00
|
|
|
{
|
2009-03-23 21:14:51 +08:00
|
|
|
ngx_http_file_cache_t *ocache = data;
|
|
|
|
|
2009-03-28 01:00:42 +08:00
|
|
|
size_t len;
|
2009-08-10 21:18:40 +08:00
|
|
|
ngx_uint_t n;
|
2009-03-23 21:14:51 +08:00
|
|
|
ngx_http_file_cache_t *cache;
|
|
|
|
|
|
|
|
cache = shm_zone->data;
|
|
|
|
|
|
|
|
if (ocache) {
|
|
|
|
if (ngx_strcmp(cache->path->name.data, ocache->path->name.data) != 0) {
|
|
|
|
ngx_log_error(NGX_LOG_EMERG, shm_zone->shm.log, 0,
|
|
|
|
"cache \"%V\" uses the \"%V\" cache path "
|
|
|
|
"while previously it used the \"%V\" cache path",
|
2009-04-17 03:25:09 +08:00
|
|
|
&shm_zone->shm.name, &cache->path->name,
|
2009-03-23 21:14:51 +08:00
|
|
|
&ocache->path->name);
|
|
|
|
|
|
|
|
return NGX_ERROR;
|
|
|
|
}
|
|
|
|
|
2009-08-10 21:18:40 +08:00
|
|
|
for (n = 0; n < 3; n++) {
|
|
|
|
if (cache->path->level[n] != ocache->path->level[n]) {
|
|
|
|
ngx_log_error(NGX_LOG_EMERG, shm_zone->shm.log, 0,
|
|
|
|
"cache \"%V\" had previously different levels",
|
|
|
|
&shm_zone->shm.name);
|
|
|
|
return NGX_ERROR;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2009-04-19 03:27:28 +08:00
|
|
|
cache->sh = ocache->sh;
|
|
|
|
|
2009-03-23 21:14:51 +08:00
|
|
|
cache->shpool = ocache->shpool;
|
2009-03-30 15:45:55 +08:00
|
|
|
cache->bsize = ocache->bsize;
|
|
|
|
|
|
|
|
cache->max_size /= cache->bsize;
|
2009-03-23 21:14:51 +08:00
|
|
|
|
2009-08-10 21:27:14 +08:00
|
|
|
if (!cache->sh->cold || cache->sh->loading) {
|
|
|
|
cache->path->loader = NULL;
|
|
|
|
}
|
|
|
|
|
2009-03-23 21:14:51 +08:00
|
|
|
return NGX_OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
cache->shpool = (ngx_slab_pool_t *) shm_zone->shm.addr;
|
|
|
|
|
2009-04-19 03:27:28 +08:00
|
|
|
if (shm_zone->shm.exists) {
|
|
|
|
cache->sh = cache->shpool->data;
|
|
|
|
cache->bsize = ngx_fs_bsize(cache->path->name.data);
|
2009-03-23 21:14:51 +08:00
|
|
|
|
2009-04-19 03:27:28 +08:00
|
|
|
return NGX_OK;
|
2009-03-23 21:14:51 +08:00
|
|
|
}
|
|
|
|
|
2009-04-19 03:27:28 +08:00
|
|
|
cache->sh = ngx_slab_alloc(cache->shpool, sizeof(ngx_http_file_cache_sh_t));
|
|
|
|
if (cache->sh == NULL) {
|
2009-03-23 21:14:51 +08:00
|
|
|
return NGX_ERROR;
|
|
|
|
}
|
|
|
|
|
2009-04-19 03:27:28 +08:00
|
|
|
cache->shpool->data = cache->sh;
|
2009-03-23 21:14:51 +08:00
|
|
|
|
2009-04-19 03:27:28 +08:00
|
|
|
ngx_rbtree_init(&cache->sh->rbtree, &cache->sh->sentinel,
|
|
|
|
ngx_http_file_cache_rbtree_insert_value);
|
2009-03-30 15:45:55 +08:00
|
|
|
|
2009-04-19 03:27:28 +08:00
|
|
|
ngx_queue_init(&cache->sh->queue);
|
2009-03-30 15:45:55 +08:00
|
|
|
|
2009-04-19 03:27:28 +08:00
|
|
|
cache->sh->cold = 1;
|
2009-08-10 21:27:14 +08:00
|
|
|
cache->sh->loading = 0;
|
2009-04-19 03:27:28 +08:00
|
|
|
cache->sh->size = 0;
|
2009-03-30 15:45:55 +08:00
|
|
|
|
|
|
|
cache->bsize = ngx_fs_bsize(cache->path->name.data);
|
|
|
|
|
|
|
|
cache->max_size /= cache->bsize;
|
|
|
|
|
2009-04-17 03:25:09 +08:00
|
|
|
len = sizeof(" in cache keys zone \"\"") + shm_zone->shm.name.len;
|
2009-03-28 01:00:42 +08:00
|
|
|
|
|
|
|
cache->shpool->log_ctx = ngx_slab_alloc(cache->shpool, len);
|
|
|
|
if (cache->shpool->log_ctx == NULL) {
|
|
|
|
return NGX_ERROR;
|
|
|
|
}
|
|
|
|
|
|
|
|
ngx_sprintf(cache->shpool->log_ctx, " in cache keys zone \"%V\"%Z",
|
2009-04-17 03:25:09 +08:00
|
|
|
&shm_zone->shm.name);
|
2009-03-28 01:00:42 +08:00
|
|
|
|
2009-03-23 21:14:51 +08:00
|
|
|
return NGX_OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2010-07-15 22:01:02 +08:00
|
|
|
ngx_int_t
|
2010-07-16 18:01:49 +08:00
|
|
|
ngx_http_file_cache_new(ngx_http_request_t *r)
|
2010-07-15 22:01:02 +08:00
|
|
|
{
|
|
|
|
ngx_http_cache_t *c;
|
|
|
|
|
|
|
|
c = ngx_pcalloc(r->pool, sizeof(ngx_http_cache_t));
|
|
|
|
if (c == NULL) {
|
|
|
|
return NGX_ERROR;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (ngx_array_init(&c->keys, r->pool, 4, sizeof(ngx_str_t)) != NGX_OK) {
|
|
|
|
return NGX_ERROR;
|
|
|
|
}
|
|
|
|
|
|
|
|
r->cache = c;
|
|
|
|
c->file.log = r->connection->log;
|
2010-07-19 23:28:22 +08:00
|
|
|
c->file.fd = NGX_INVALID_FILE;
|
2010-07-15 22:01:02 +08:00
|
|
|
|
|
|
|
return NGX_OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2010-07-19 17:36:04 +08:00
|
|
|
ngx_int_t
|
|
|
|
ngx_http_file_cache_create(ngx_http_request_t *r)
|
|
|
|
{
|
|
|
|
ngx_http_cache_t *c;
|
|
|
|
ngx_pool_cleanup_t *cln;
|
|
|
|
ngx_http_file_cache_t *cache;
|
|
|
|
|
|
|
|
ngx_http_file_cache_create_key(r);
|
|
|
|
|
|
|
|
c = r->cache;
|
|
|
|
cache = c->file_cache;
|
|
|
|
|
|
|
|
cln = ngx_pool_cleanup_add(r->pool, 0);
|
|
|
|
if (cln == NULL) {
|
|
|
|
return NGX_ERROR;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (ngx_http_file_cache_exists(cache, c) == NGX_ERROR) {
|
|
|
|
return NGX_ERROR;
|
|
|
|
}
|
|
|
|
|
|
|
|
cln->handler = ngx_http_file_cache_cleanup;
|
|
|
|
cln->data = c;
|
|
|
|
|
|
|
|
if (ngx_http_file_cache_name(r, cache->path) != NGX_OK) {
|
|
|
|
return NGX_ERROR;
|
|
|
|
}
|
|
|
|
|
|
|
|
return NGX_OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2009-03-23 21:14:51 +08:00
|
|
|
void
|
|
|
|
ngx_http_file_cache_create_key(ngx_http_request_t *r)
|
|
|
|
{
|
|
|
|
size_t len;
|
2004-12-21 20:30:30 +08:00
|
|
|
ngx_str_t *key;
|
2009-03-23 21:14:51 +08:00
|
|
|
ngx_uint_t i;
|
|
|
|
ngx_md5_t md5;
|
2004-12-21 20:30:30 +08:00
|
|
|
ngx_http_cache_t *c;
|
2003-12-02 00:28:14 +08:00
|
|
|
|
2004-12-21 20:30:30 +08:00
|
|
|
c = r->cache;
|
2003-12-02 00:28:14 +08:00
|
|
|
|
2009-03-23 21:14:51 +08:00
|
|
|
len = 0;
|
|
|
|
|
|
|
|
ngx_crc32_init(c->crc32);
|
|
|
|
ngx_md5_init(&md5);
|
|
|
|
|
|
|
|
key = c->keys.elts;
|
|
|
|
for (i = 0; i < c->keys.nelts; i++) {
|
|
|
|
ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
|
"http cache key: \"%V\"", &key[i]);
|
|
|
|
|
|
|
|
len += key[i].len;
|
|
|
|
|
|
|
|
ngx_crc32_update(&c->crc32, key[i].data, key[i].len);
|
|
|
|
ngx_md5_update(&md5, key[i].data, key[i].len);
|
2003-12-02 00:28:14 +08:00
|
|
|
}
|
|
|
|
|
2009-03-23 21:14:51 +08:00
|
|
|
c->header_start = sizeof(ngx_http_file_cache_header_t)
|
|
|
|
+ sizeof(ngx_http_file_cache_key) + len + 1;
|
2003-12-02 00:28:14 +08:00
|
|
|
|
2009-03-23 21:14:51 +08:00
|
|
|
ngx_crc32_final(c->crc32);
|
|
|
|
ngx_md5_final(c->key, &md5);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
ngx_int_t
|
|
|
|
ngx_http_file_cache_open(ngx_http_request_t *r)
|
|
|
|
{
|
2009-08-28 16:12:35 +08:00
|
|
|
ngx_int_t rc, rv;
|
|
|
|
ngx_uint_t cold, test;
|
|
|
|
ngx_http_cache_t *c;
|
|
|
|
ngx_pool_cleanup_t *cln;
|
|
|
|
ngx_open_file_info_t of;
|
|
|
|
ngx_http_file_cache_t *cache;
|
|
|
|
ngx_http_core_loc_conf_t *clcf;
|
2009-03-23 21:14:51 +08:00
|
|
|
|
|
|
|
c = r->cache;
|
2009-08-28 16:12:35 +08:00
|
|
|
|
|
|
|
if (c->buf) {
|
|
|
|
return ngx_http_file_cache_read(r, c);
|
|
|
|
}
|
|
|
|
|
2009-03-23 21:14:51 +08:00
|
|
|
cache = c->file_cache;
|
|
|
|
|
|
|
|
cln = ngx_pool_cleanup_add(r->pool, 0);
|
|
|
|
if (cln == NULL) {
|
|
|
|
return NGX_ERROR;
|
2004-12-21 20:30:30 +08:00
|
|
|
}
|
|
|
|
|
2009-03-30 15:45:55 +08:00
|
|
|
rc = ngx_http_file_cache_exists(cache, c);
|
2004-12-21 20:30:30 +08:00
|
|
|
|
2009-06-07 01:48:54 +08:00
|
|
|
ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
|
"http file cache exists: %i e:%d", rc, c->exists);
|
2004-12-21 20:30:30 +08:00
|
|
|
|
2009-03-23 21:14:51 +08:00
|
|
|
if (rc == NGX_ERROR) {
|
|
|
|
return rc;
|
|
|
|
}
|
2004-12-21 20:30:30 +08:00
|
|
|
|
2009-03-23 21:14:51 +08:00
|
|
|
cln->handler = ngx_http_file_cache_cleanup;
|
|
|
|
cln->data = c;
|
2003-12-02 00:28:14 +08:00
|
|
|
|
2009-03-23 21:14:51 +08:00
|
|
|
if (rc == NGX_AGAIN) {
|
2009-08-28 16:12:35 +08:00
|
|
|
return NGX_HTTP_CACHE_SCARCE;
|
2009-03-23 21:14:51 +08:00
|
|
|
}
|
2003-12-02 00:28:14 +08:00
|
|
|
|
2009-04-19 03:27:28 +08:00
|
|
|
cold = cache->sh->cold;
|
2003-12-02 00:28:14 +08:00
|
|
|
|
2009-03-23 21:14:51 +08:00
|
|
|
if (rc == NGX_OK) {
|
2003-12-02 00:28:14 +08:00
|
|
|
|
2009-03-23 21:14:51 +08:00
|
|
|
if (c->error) {
|
|
|
|
return c->error;
|
|
|
|
}
|
2003-12-02 00:28:14 +08:00
|
|
|
|
2009-03-23 21:14:51 +08:00
|
|
|
c->temp_file = 1;
|
|
|
|
test = c->exists ? 1 : 0;
|
|
|
|
rv = NGX_DECLINED;
|
2003-12-02 00:28:14 +08:00
|
|
|
|
2009-03-23 21:14:51 +08:00
|
|
|
} else { /* rc == NGX_DECLINED */
|
2003-12-02 00:28:14 +08:00
|
|
|
|
2009-03-23 21:14:51 +08:00
|
|
|
if (c->min_uses > 1) {
|
2003-12-02 00:28:14 +08:00
|
|
|
|
2009-03-23 21:14:51 +08:00
|
|
|
if (!cold) {
|
2009-08-28 16:12:35 +08:00
|
|
|
return NGX_HTTP_CACHE_SCARCE;
|
2009-03-23 21:14:51 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
test = 1;
|
2009-08-28 16:12:35 +08:00
|
|
|
rv = NGX_HTTP_CACHE_SCARCE;
|
2009-03-23 21:14:51 +08:00
|
|
|
|
|
|
|
} else {
|
|
|
|
c->temp_file = 1;
|
|
|
|
test = cold ? 1 : 0;
|
|
|
|
rv = NGX_DECLINED;
|
2003-12-02 00:28:14 +08:00
|
|
|
}
|
2009-03-23 21:14:51 +08:00
|
|
|
}
|
2003-12-02 00:28:14 +08:00
|
|
|
|
2010-07-15 21:46:32 +08:00
|
|
|
if (ngx_http_file_cache_name(r, cache->path) != NGX_OK) {
|
2003-12-02 00:28:14 +08:00
|
|
|
return NGX_ERROR;
|
|
|
|
}
|
|
|
|
|
2009-03-23 21:14:51 +08:00
|
|
|
if (!test) {
|
|
|
|
return NGX_DECLINED;
|
|
|
|
}
|
|
|
|
|
|
|
|
clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
|
|
|
|
|
ngx_memzero(&of, sizeof(ngx_open_file_info_t));
|
|
|
|
|
|
|
|
of.uniq = c->uniq;
|
|
|
|
of.valid = clcf->open_file_cache_valid;
|
|
|
|
of.min_uses = clcf->open_file_cache_min_uses;
|
|
|
|
of.events = clcf->open_file_cache_events;
|
|
|
|
of.directio = NGX_OPEN_FILE_DIRECTIO_OFF;
|
2009-09-30 21:21:52 +08:00
|
|
|
of.read_ahead = clcf->read_ahead;
|
2009-03-23 21:14:51 +08:00
|
|
|
|
|
|
|
if (ngx_open_cached_file(clcf->open_file_cache, &c->file.name, &of, r->pool)
|
|
|
|
!= NGX_OK)
|
|
|
|
{
|
|
|
|
switch (of.err) {
|
|
|
|
|
|
|
|
case 0:
|
2003-12-02 00:28:14 +08:00
|
|
|
return NGX_ERROR;
|
|
|
|
|
2009-03-23 21:14:51 +08:00
|
|
|
case NGX_ENOENT:
|
|
|
|
case NGX_ENOTDIR:
|
|
|
|
return rv;
|
2003-12-02 00:28:14 +08:00
|
|
|
|
2009-03-23 21:14:51 +08:00
|
|
|
default:
|
|
|
|
ngx_log_error(NGX_LOG_CRIT, r->connection->log, of.err,
|
|
|
|
ngx_open_file_n " \"%s\" failed", c->file.name.data);
|
|
|
|
return NGX_ERROR;
|
2003-12-02 00:28:14 +08:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2009-03-23 21:14:51 +08:00
|
|
|
ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
|
"http file cache fd: %d", of.fd);
|
|
|
|
|
|
|
|
c->file.fd = of.fd;
|
2009-03-24 23:03:38 +08:00
|
|
|
c->file.log = r->connection->log;
|
2009-08-28 16:12:35 +08:00
|
|
|
c->uniq = of.uniq;
|
|
|
|
c->length = of.size;
|
2003-12-02 00:28:14 +08:00
|
|
|
|
2009-03-23 21:14:51 +08:00
|
|
|
c->buf = ngx_create_temp_buf(r->pool, c->body_start);
|
|
|
|
if (c->buf == NULL) {
|
|
|
|
return NGX_ERROR;
|
|
|
|
}
|
|
|
|
|
2009-08-28 16:12:35 +08:00
|
|
|
return ngx_http_file_cache_read(r, c);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static ngx_int_t
|
|
|
|
ngx_http_file_cache_read(ngx_http_request_t *r, ngx_http_cache_t *c)
|
|
|
|
{
|
|
|
|
time_t now;
|
|
|
|
ssize_t n;
|
|
|
|
ngx_int_t rc;
|
|
|
|
ngx_http_file_cache_t *cache;
|
|
|
|
ngx_http_file_cache_header_t *h;
|
|
|
|
|
2009-11-05 21:12:30 +08:00
|
|
|
n = ngx_http_file_cache_aio_read(r, c);
|
2009-08-28 16:12:35 +08:00
|
|
|
|
2009-11-05 21:12:30 +08:00
|
|
|
if (n < 0) {
|
2003-12-02 00:28:14 +08:00
|
|
|
return n;
|
|
|
|
}
|
|
|
|
|
2009-11-30 04:48:01 +08:00
|
|
|
if ((size_t) n < c->header_start) {
|
2009-03-23 21:14:51 +08:00
|
|
|
ngx_log_error(NGX_LOG_CRIT, r->connection->log, 0,
|
2004-12-21 20:30:30 +08:00
|
|
|
"cache file \"%s\" is too small", c->file.name.data);
|
2003-12-02 00:28:14 +08:00
|
|
|
return NGX_ERROR;
|
|
|
|
}
|
|
|
|
|
2009-03-23 21:14:51 +08:00
|
|
|
h = (ngx_http_file_cache_header_t *) c->buf->pos;
|
2003-12-02 00:28:14 +08:00
|
|
|
|
2010-03-03 18:43:38 +08:00
|
|
|
if (h->crc32 != c->crc32) {
|
2009-03-23 21:14:51 +08:00
|
|
|
ngx_log_error(NGX_LOG_CRIT, r->connection->log, 0,
|
|
|
|
"cache file \"%s\" has md5 collision", c->file.name.data);
|
2003-12-02 00:28:14 +08:00
|
|
|
return NGX_DECLINED;
|
|
|
|
}
|
|
|
|
|
2009-03-23 21:14:51 +08:00
|
|
|
c->buf->last += n;
|
2004-12-21 20:30:30 +08:00
|
|
|
|
2009-03-23 21:14:51 +08:00
|
|
|
c->valid_sec = h->valid_sec;
|
|
|
|
c->last_modified = h->last_modified;
|
|
|
|
c->date = h->date;
|
|
|
|
c->valid_msec = h->valid_msec;
|
2010-03-03 18:43:38 +08:00
|
|
|
c->header_start = h->header_start;
|
2009-03-23 21:14:51 +08:00
|
|
|
c->body_start = h->body_start;
|
2004-12-21 20:30:30 +08:00
|
|
|
|
2009-03-23 21:14:51 +08:00
|
|
|
r->cached = 1;
|
2004-12-21 20:30:30 +08:00
|
|
|
|
2009-08-28 16:12:35 +08:00
|
|
|
cache = c->file_cache;
|
|
|
|
|
|
|
|
if (cache->sh->cold) {
|
2004-12-21 20:30:30 +08:00
|
|
|
|
2009-03-23 21:14:51 +08:00
|
|
|
ngx_shmtx_lock(&cache->shpool->mutex);
|
|
|
|
|
2009-03-30 15:45:55 +08:00
|
|
|
if (!c->node->exists) {
|
|
|
|
c->node->uses = 1;
|
|
|
|
c->node->body_start = c->body_start;
|
|
|
|
c->node->exists = 1;
|
2009-08-28 16:12:35 +08:00
|
|
|
c->node->uniq = c->uniq;
|
2009-03-30 15:45:55 +08:00
|
|
|
|
2009-04-19 03:27:28 +08:00
|
|
|
cache->sh->size += (c->length + cache->bsize - 1) / cache->bsize;
|
2009-03-30 15:45:55 +08:00
|
|
|
}
|
2009-03-23 21:14:51 +08:00
|
|
|
|
|
|
|
ngx_shmtx_unlock(&cache->shpool->mutex);
|
2003-12-02 00:28:14 +08:00
|
|
|
}
|
|
|
|
|
2009-03-30 15:45:55 +08:00
|
|
|
now = ngx_time();
|
|
|
|
|
2009-03-23 21:14:51 +08:00
|
|
|
if (c->valid_sec < now) {
|
2003-12-02 00:28:14 +08:00
|
|
|
|
2009-06-07 02:49:47 +08:00
|
|
|
ngx_shmtx_lock(&cache->shpool->mutex);
|
|
|
|
|
|
|
|
if (c->node->updating) {
|
|
|
|
rc = NGX_HTTP_CACHE_UPDATING;
|
|
|
|
|
|
|
|
} else {
|
|
|
|
c->node->updating = 1;
|
2010-07-28 23:49:34 +08:00
|
|
|
c->updating = 1;
|
2009-06-07 02:49:47 +08:00
|
|
|
rc = NGX_HTTP_CACHE_STALE;
|
|
|
|
}
|
2004-02-12 01:08:49 +08:00
|
|
|
|
2009-06-07 02:49:47 +08:00
|
|
|
ngx_shmtx_unlock(&cache->shpool->mutex);
|
|
|
|
|
|
|
|
ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
|
"http file cache expired: %i %T %T",
|
|
|
|
rc, c->valid_sec, now);
|
|
|
|
|
|
|
|
return rc;
|
2003-12-02 00:28:14 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
return NGX_OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2009-11-05 21:12:30 +08:00
|
|
|
static ssize_t
|
|
|
|
ngx_http_file_cache_aio_read(ngx_http_request_t *r, ngx_http_cache_t *c)
|
|
|
|
{
|
2009-08-28 16:12:35 +08:00
|
|
|
#if (NGX_HAVE_FILE_AIO)
|
2009-11-05 21:12:30 +08:00
|
|
|
ssize_t n;
|
|
|
|
ngx_http_core_loc_conf_t *clcf;
|
|
|
|
|
|
|
|
if (!ngx_file_aio) {
|
|
|
|
goto noaio;
|
|
|
|
}
|
|
|
|
|
|
|
|
clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
|
|
|
|
|
if (!clcf->aio) {
|
|
|
|
goto noaio;
|
|
|
|
}
|
|
|
|
|
|
|
|
n = ngx_file_aio_read(&c->file, c->buf->pos, c->body_start, 0, r->pool);
|
|
|
|
|
|
|
|
if (n != NGX_AGAIN) {
|
|
|
|
return n;
|
|
|
|
}
|
|
|
|
|
|
|
|
c->file.aio->data = r;
|
|
|
|
c->file.aio->handler = ngx_http_cache_aio_event_handler;
|
2009-08-28 16:12:35 +08:00
|
|
|
|
2009-11-05 21:12:30 +08:00
|
|
|
r->main->blocked++;
|
|
|
|
r->aio = 1;
|
|
|
|
|
|
|
|
return NGX_AGAIN;
|
|
|
|
|
|
|
|
noaio:
|
|
|
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
return ngx_read_file(&c->file, c->buf->pos, c->body_start, 0);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
#if (NGX_HAVE_FILE_AIO)
|
2009-08-28 16:12:35 +08:00
|
|
|
|
|
|
|
static void
|
|
|
|
ngx_http_cache_aio_event_handler(ngx_event_t *ev)
|
|
|
|
{
|
|
|
|
ngx_event_aio_t *aio;
|
|
|
|
ngx_http_request_t *r;
|
|
|
|
|
|
|
|
aio = ev->data;
|
|
|
|
r = aio->data;
|
|
|
|
|
|
|
|
r->main->blocked--;
|
|
|
|
r->aio = 0;
|
|
|
|
|
|
|
|
r->connection->write->handler(r->connection->write);
|
|
|
|
}
|
|
|
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
2009-03-23 21:14:51 +08:00
|
|
|
static ngx_int_t
|
2009-03-30 15:45:55 +08:00
|
|
|
ngx_http_file_cache_exists(ngx_http_file_cache_t *cache, ngx_http_cache_t *c)
|
2009-03-23 21:14:51 +08:00
|
|
|
{
|
|
|
|
ngx_int_t rc;
|
|
|
|
ngx_http_file_cache_node_t *fcn;
|
|
|
|
|
|
|
|
ngx_shmtx_lock(&cache->shpool->mutex);
|
|
|
|
|
2009-03-30 15:45:55 +08:00
|
|
|
fcn = ngx_http_file_cache_lookup(cache, c->key);
|
2009-03-23 21:14:51 +08:00
|
|
|
|
|
|
|
if (fcn) {
|
|
|
|
ngx_queue_remove(&fcn->queue);
|
|
|
|
|
2010-07-30 20:41:55 +08:00
|
|
|
fcn->uses++;
|
|
|
|
fcn->count++;
|
|
|
|
|
2009-03-23 21:14:51 +08:00
|
|
|
if (fcn->error) {
|
|
|
|
|
|
|
|
if (fcn->valid_sec < ngx_time()) {
|
|
|
|
goto renew;
|
|
|
|
}
|
|
|
|
|
|
|
|
rc = NGX_OK;
|
|
|
|
|
|
|
|
goto done;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (fcn->exists) {
|
|
|
|
|
2009-03-30 15:45:55 +08:00
|
|
|
c->exists = fcn->exists;
|
|
|
|
c->body_start = fcn->body_start;
|
2009-03-23 21:14:51 +08:00
|
|
|
|
|
|
|
rc = NGX_OK;
|
|
|
|
|
|
|
|
goto done;
|
|
|
|
}
|
|
|
|
|
2009-03-30 15:45:55 +08:00
|
|
|
if (fcn->uses >= c->min_uses) {
|
2009-03-23 21:14:51 +08:00
|
|
|
|
2009-03-30 15:45:55 +08:00
|
|
|
c->exists = fcn->exists;
|
|
|
|
c->body_start = fcn->body_start;
|
2009-03-23 21:14:51 +08:00
|
|
|
|
|
|
|
rc = NGX_OK;
|
|
|
|
|
|
|
|
} else {
|
|
|
|
rc = NGX_AGAIN;
|
|
|
|
}
|
|
|
|
|
|
|
|
goto done;
|
|
|
|
}
|
|
|
|
|
|
|
|
fcn = ngx_slab_alloc_locked(cache->shpool,
|
|
|
|
sizeof(ngx_http_file_cache_node_t));
|
|
|
|
if (fcn == NULL) {
|
|
|
|
ngx_shmtx_unlock(&cache->shpool->mutex);
|
|
|
|
|
2009-04-11 01:45:07 +08:00
|
|
|
(void) ngx_http_file_cache_forced_expire(cache);
|
2009-03-23 21:14:51 +08:00
|
|
|
|
|
|
|
ngx_shmtx_lock(&cache->shpool->mutex);
|
|
|
|
|
|
|
|
fcn = ngx_slab_alloc_locked(cache->shpool,
|
|
|
|
sizeof(ngx_http_file_cache_node_t));
|
|
|
|
if (fcn == NULL) {
|
|
|
|
rc = NGX_ERROR;
|
|
|
|
goto failed;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2009-03-30 15:45:55 +08:00
|
|
|
ngx_memcpy((u_char *) &fcn->node.key, c->key, sizeof(ngx_rbtree_key_t));
|
2009-03-23 21:14:51 +08:00
|
|
|
|
2009-03-30 15:45:55 +08:00
|
|
|
ngx_memcpy(fcn->key, &c->key[sizeof(ngx_rbtree_key_t)],
|
2009-03-23 21:14:51 +08:00
|
|
|
NGX_HTTP_CACHE_KEY_LEN - sizeof(ngx_rbtree_key_t));
|
|
|
|
|
2009-04-19 03:27:28 +08:00
|
|
|
ngx_rbtree_insert(&cache->sh->rbtree, &fcn->node);
|
2009-03-23 21:14:51 +08:00
|
|
|
|
2010-07-30 20:41:55 +08:00
|
|
|
fcn->uses = 1;
|
|
|
|
fcn->count = 1;
|
|
|
|
|
2009-03-23 21:14:51 +08:00
|
|
|
renew:
|
|
|
|
|
|
|
|
rc = NGX_DECLINED;
|
|
|
|
|
|
|
|
fcn->valid_msec = 0;
|
|
|
|
fcn->error = 0;
|
|
|
|
fcn->exists = 0;
|
|
|
|
fcn->valid_sec = 0;
|
|
|
|
fcn->uniq = 0;
|
|
|
|
fcn->body_start = 0;
|
2009-04-01 21:05:38 +08:00
|
|
|
fcn->length = 0;
|
2009-03-23 21:14:51 +08:00
|
|
|
|
|
|
|
done:
|
|
|
|
|
|
|
|
fcn->expire = ngx_time() + cache->inactive;
|
|
|
|
|
2009-04-19 03:27:28 +08:00
|
|
|
ngx_queue_insert_head(&cache->sh->queue, &fcn->queue);
|
2009-03-23 21:14:51 +08:00
|
|
|
|
2009-03-30 15:45:55 +08:00
|
|
|
c->uniq = fcn->uniq;
|
|
|
|
c->error = fcn->error;
|
|
|
|
c->node = fcn;
|
2009-03-23 21:14:51 +08:00
|
|
|
|
|
|
|
failed:
|
|
|
|
|
|
|
|
ngx_shmtx_unlock(&cache->shpool->mutex);
|
|
|
|
|
|
|
|
return rc;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2010-07-15 21:46:32 +08:00
|
|
|
static ngx_int_t
|
|
|
|
ngx_http_file_cache_name(ngx_http_request_t *r, ngx_path_t *path)
|
|
|
|
{
|
|
|
|
u_char *p;
|
|
|
|
ngx_http_cache_t *c;
|
|
|
|
|
|
|
|
c = r->cache;
|
|
|
|
|
|
|
|
c->file.name.len = path->name.len + 1 + path->len
|
|
|
|
+ 2 * NGX_HTTP_CACHE_KEY_LEN;
|
|
|
|
|
|
|
|
c->file.name.data = ngx_pnalloc(r->pool, c->file.name.len + 1);
|
|
|
|
if (c->file.name.data == NULL) {
|
|
|
|
return NGX_ERROR;
|
|
|
|
}
|
|
|
|
|
|
|
|
ngx_memcpy(c->file.name.data, path->name.data, path->name.len);
|
|
|
|
|
|
|
|
p = c->file.name.data + path->name.len + 1 + path->len;
|
|
|
|
p = ngx_hex_dump(p, c->key, NGX_HTTP_CACHE_KEY_LEN);
|
|
|
|
*p = '\0';
|
|
|
|
|
|
|
|
ngx_create_hashed_filename(path, c->file.name.data, c->file.name.len);
|
|
|
|
|
|
|
|
ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
|
"cache file: \"%s\"", c->file.name.data);
|
|
|
|
|
|
|
|
return NGX_OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2009-03-23 21:14:51 +08:00
|
|
|
static ngx_http_file_cache_node_t *
|
|
|
|
ngx_http_file_cache_lookup(ngx_http_file_cache_t *cache, u_char *key)
|
|
|
|
{
|
|
|
|
ngx_int_t rc;
|
|
|
|
ngx_rbtree_key_t node_key;
|
|
|
|
ngx_rbtree_node_t *node, *sentinel;
|
|
|
|
ngx_http_file_cache_node_t *fcn;
|
|
|
|
|
|
|
|
ngx_memcpy((u_char *) &node_key, key, sizeof(ngx_rbtree_key_t));
|
|
|
|
|
2009-04-19 03:27:28 +08:00
|
|
|
node = cache->sh->rbtree.root;
|
|
|
|
sentinel = cache->sh->rbtree.sentinel;
|
2009-03-23 21:14:51 +08:00
|
|
|
|
|
|
|
while (node != sentinel) {
|
|
|
|
|
|
|
|
if (node_key < node->key) {
|
|
|
|
node = node->left;
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (node_key > node->key) {
|
|
|
|
node = node->right;
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* node_key == node->key */
|
|
|
|
|
|
|
|
do {
|
|
|
|
fcn = (ngx_http_file_cache_node_t *) node;
|
|
|
|
|
|
|
|
rc = ngx_memcmp(&key[sizeof(ngx_rbtree_key_t)], fcn->key,
|
|
|
|
NGX_HTTP_CACHE_KEY_LEN - sizeof(ngx_rbtree_key_t));
|
|
|
|
|
|
|
|
if (rc == 0) {
|
|
|
|
return fcn;
|
|
|
|
}
|
|
|
|
|
|
|
|
node = (rc < 0) ? node->left : node->right;
|
|
|
|
|
|
|
|
} while (node != sentinel && node_key == node->key);
|
|
|
|
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* not found */
|
|
|
|
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
ngx_http_file_cache_rbtree_insert_value(ngx_rbtree_node_t *temp,
|
|
|
|
ngx_rbtree_node_t *node, ngx_rbtree_node_t *sentinel)
|
|
|
|
{
|
|
|
|
ngx_rbtree_node_t **p;
|
|
|
|
ngx_http_file_cache_node_t *cn, *cnt;
|
|
|
|
|
|
|
|
for ( ;; ) {
|
|
|
|
|
|
|
|
if (node->key < temp->key) {
|
|
|
|
|
|
|
|
p = &temp->left;
|
|
|
|
|
|
|
|
} else if (node->key > temp->key) {
|
|
|
|
|
|
|
|
p = &temp->right;
|
|
|
|
|
|
|
|
} else { /* node->key == temp->key */
|
|
|
|
|
|
|
|
cn = (ngx_http_file_cache_node_t *) node;
|
|
|
|
cnt = (ngx_http_file_cache_node_t *) temp;
|
|
|
|
|
|
|
|
p = (ngx_memcmp(cn->key, cnt->key,
|
|
|
|
NGX_HTTP_CACHE_KEY_LEN - sizeof(ngx_rbtree_key_t))
|
|
|
|
< 0)
|
|
|
|
? &temp->left : &temp->right;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (*p == sentinel) {
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
temp = *p;
|
|
|
|
}
|
|
|
|
|
|
|
|
*p = node;
|
|
|
|
node->parent = temp;
|
|
|
|
node->left = sentinel;
|
|
|
|
node->right = sentinel;
|
|
|
|
ngx_rbt_red(node);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
ngx_http_file_cache_set_header(ngx_http_request_t *r, u_char *buf)
|
|
|
|
{
|
|
|
|
ngx_http_file_cache_header_t *h = (ngx_http_file_cache_header_t *) buf;
|
|
|
|
|
|
|
|
u_char *p;
|
|
|
|
ngx_str_t *key;
|
|
|
|
ngx_uint_t i;
|
|
|
|
ngx_http_cache_t *c;
|
|
|
|
|
|
|
|
ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
|
"http file cache set header");
|
|
|
|
|
|
|
|
c = r->cache;
|
|
|
|
|
|
|
|
h->valid_sec = c->valid_sec;
|
|
|
|
h->last_modified = c->last_modified;
|
|
|
|
h->date = c->date;
|
|
|
|
h->crc32 = c->crc32;
|
|
|
|
h->valid_msec = (u_short) c->valid_msec;
|
|
|
|
h->header_start = (u_short) c->header_start;
|
|
|
|
h->body_start = (u_short) c->body_start;
|
|
|
|
|
|
|
|
p = buf + sizeof(ngx_http_file_cache_header_t);
|
|
|
|
|
|
|
|
p = ngx_cpymem(p, ngx_http_file_cache_key, sizeof(ngx_http_file_cache_key));
|
|
|
|
|
|
|
|
key = c->keys.elts;
|
|
|
|
for (i = 0; i < c->keys.nelts; i++) {
|
|
|
|
p = ngx_copy(p, key[i].data, key[i].len);
|
|
|
|
}
|
|
|
|
|
|
|
|
*p = LF;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
ngx_http_file_cache_update(ngx_http_request_t *r, ngx_temp_file_t *tf)
|
|
|
|
{
|
2009-10-07 20:55:58 +08:00
|
|
|
off_t size, length;
|
2009-03-23 21:14:51 +08:00
|
|
|
ngx_int_t rc;
|
|
|
|
ngx_file_uniq_t uniq;
|
|
|
|
ngx_file_info_t fi;
|
|
|
|
ngx_http_cache_t *c;
|
|
|
|
ngx_ext_rename_file_t ext;
|
|
|
|
ngx_http_file_cache_t *cache;
|
|
|
|
|
|
|
|
c = r->cache;
|
|
|
|
|
|
|
|
if (c->updated) {
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
|
"http file cache update");
|
|
|
|
|
|
|
|
c->updated = 1;
|
2010-07-28 23:49:34 +08:00
|
|
|
c->updating = 0;
|
2009-03-23 21:14:51 +08:00
|
|
|
|
|
|
|
cache = c->file_cache;
|
|
|
|
|
|
|
|
uniq = 0;
|
2009-10-07 20:55:58 +08:00
|
|
|
length = 0;
|
2009-03-23 21:14:51 +08:00
|
|
|
|
|
|
|
ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
|
"http file cache rename: \"%s\" to \"%s\"",
|
|
|
|
tf->file.name.data, c->file.name.data);
|
|
|
|
|
|
|
|
ext.access = NGX_FILE_OWNER_ACCESS;
|
|
|
|
ext.path_access = NGX_FILE_OWNER_ACCESS;
|
|
|
|
ext.time = -1;
|
|
|
|
ext.create_path = 1;
|
|
|
|
ext.delete_file = 1;
|
|
|
|
ext.log = r->connection->log;
|
|
|
|
|
|
|
|
rc = ngx_ext_rename_file(&tf->file.name, &c->file.name, &ext);
|
|
|
|
|
|
|
|
if (rc == NGX_OK) {
|
|
|
|
|
|
|
|
if (ngx_fd_info(tf->file.fd, &fi) == NGX_FILE_ERROR) {
|
|
|
|
ngx_log_error(NGX_LOG_CRIT, r->connection->log, ngx_errno,
|
|
|
|
ngx_fd_info_n " \"%s\" failed", tf->file.name.data);
|
|
|
|
|
|
|
|
rc = NGX_ERROR;
|
|
|
|
|
|
|
|
} else {
|
|
|
|
uniq = ngx_file_uniq(&fi);
|
2009-10-07 20:55:58 +08:00
|
|
|
length = ngx_file_size(&fi);
|
2009-03-23 21:14:51 +08:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2009-10-07 20:55:58 +08:00
|
|
|
size = (length + cache->bsize - 1) / cache->bsize;
|
2009-03-30 15:45:55 +08:00
|
|
|
|
2009-03-23 21:14:51 +08:00
|
|
|
ngx_shmtx_lock(&cache->shpool->mutex);
|
|
|
|
|
|
|
|
c->node->count--;
|
|
|
|
c->node->uniq = uniq;
|
|
|
|
c->node->body_start = c->body_start;
|
|
|
|
|
2009-03-30 15:45:55 +08:00
|
|
|
size = size - (c->node->length + cache->bsize - 1) / cache->bsize;
|
|
|
|
|
2009-10-07 20:55:58 +08:00
|
|
|
c->node->length = length;
|
2009-03-30 15:45:55 +08:00
|
|
|
|
2009-04-19 03:27:28 +08:00
|
|
|
cache->sh->size += size;
|
2009-03-30 15:45:55 +08:00
|
|
|
|
2009-03-23 21:14:51 +08:00
|
|
|
if (rc == NGX_OK) {
|
|
|
|
c->node->exists = 1;
|
|
|
|
}
|
|
|
|
|
2009-06-07 02:49:47 +08:00
|
|
|
c->node->updating = 0;
|
|
|
|
|
2009-03-23 21:14:51 +08:00
|
|
|
ngx_shmtx_unlock(&cache->shpool->mutex);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
ngx_int_t
|
|
|
|
ngx_http_cache_send(ngx_http_request_t *r)
|
|
|
|
{
|
|
|
|
ngx_int_t rc;
|
|
|
|
ngx_buf_t *b;
|
|
|
|
ngx_chain_t out;
|
|
|
|
ngx_http_cache_t *c;
|
|
|
|
|
|
|
|
c = r->cache;
|
|
|
|
|
|
|
|
ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
|
"http file cache send: %s", c->file.name.data);
|
|
|
|
|
|
|
|
/* we need to allocate all before the header would be sent */
|
|
|
|
|
|
|
|
b = ngx_pcalloc(r->pool, sizeof(ngx_buf_t));
|
|
|
|
if (b == NULL) {
|
|
|
|
return NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
|
}
|
|
|
|
|
|
|
|
b->file = ngx_pcalloc(r->pool, sizeof(ngx_file_t));
|
|
|
|
if (b->file == NULL) {
|
|
|
|
return NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
|
}
|
|
|
|
|
2009-12-23 22:46:45 +08:00
|
|
|
r->header_only = (c->length - c->body_start) == 0;
|
|
|
|
|
2009-03-23 21:14:51 +08:00
|
|
|
rc = ngx_http_send_header(r);
|
|
|
|
|
|
|
|
if (rc == NGX_ERROR || rc > NGX_OK || r->header_only) {
|
|
|
|
return rc;
|
|
|
|
}
|
|
|
|
|
|
|
|
b->file_pos = c->body_start;
|
|
|
|
b->file_last = c->length;
|
|
|
|
|
2009-12-23 22:46:45 +08:00
|
|
|
b->in_file = 1;
|
2009-03-23 21:14:51 +08:00
|
|
|
b->last_buf = (r == r->main) ? 1: 0;
|
|
|
|
b->last_in_chain = 1;
|
|
|
|
|
|
|
|
b->file->fd = c->file.fd;
|
|
|
|
b->file->name = c->file.name;
|
|
|
|
b->file->log = r->connection->log;
|
|
|
|
|
|
|
|
out.buf = b;
|
|
|
|
out.next = NULL;
|
|
|
|
|
|
|
|
return ngx_http_output_filter(r, &out);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
void
|
2010-07-28 23:49:34 +08:00
|
|
|
ngx_http_file_cache_free(ngx_http_cache_t *c, ngx_temp_file_t *tf)
|
2009-03-23 21:14:51 +08:00
|
|
|
{
|
2010-07-15 21:08:51 +08:00
|
|
|
ngx_http_file_cache_t *cache;
|
|
|
|
ngx_http_file_cache_node_t *fcn;
|
2009-03-23 21:14:51 +08:00
|
|
|
|
|
|
|
if (c->updated) {
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
cache = c->file_cache;
|
|
|
|
|
2010-07-28 23:56:56 +08:00
|
|
|
ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->file.log, 0,
|
|
|
|
"http file cache free, fd: %d", c->file.fd);
|
2009-03-23 21:14:51 +08:00
|
|
|
|
|
|
|
ngx_shmtx_lock(&cache->shpool->mutex);
|
|
|
|
|
2010-07-15 21:08:51 +08:00
|
|
|
fcn = c->node;
|
|
|
|
fcn->count--;
|
2010-07-28 23:49:34 +08:00
|
|
|
|
|
|
|
if (c->updating) {
|
|
|
|
fcn->updating = 0;
|
|
|
|
}
|
2009-03-23 21:14:51 +08:00
|
|
|
|
|
|
|
if (c->error) {
|
2010-07-15 21:08:51 +08:00
|
|
|
fcn->error = c->error;
|
2009-03-23 21:14:51 +08:00
|
|
|
|
2010-08-04 20:55:27 +08:00
|
|
|
if (c->valid_sec) {
|
|
|
|
fcn->valid_sec = c->valid_sec;
|
|
|
|
fcn->valid_msec = c->valid_msec;
|
|
|
|
}
|
|
|
|
|
2010-07-30 18:20:08 +08:00
|
|
|
} else if (!fcn->exists && fcn->count == 0 && c->min_uses == 1) {
|
2010-07-15 21:08:51 +08:00
|
|
|
ngx_queue_remove(&fcn->queue);
|
|
|
|
ngx_rbtree_delete(&cache->sh->rbtree, &fcn->node);
|
|
|
|
ngx_slab_free_locked(cache->shpool, fcn);
|
|
|
|
c->node = NULL;
|
|
|
|
}
|
2009-06-07 02:49:47 +08:00
|
|
|
|
2009-03-23 21:14:51 +08:00
|
|
|
ngx_shmtx_unlock(&cache->shpool->mutex);
|
|
|
|
|
2010-07-28 23:49:34 +08:00
|
|
|
c->updated = 1;
|
|
|
|
c->updating = 0;
|
|
|
|
|
2009-03-23 21:14:51 +08:00
|
|
|
if (c->temp_file) {
|
|
|
|
if (tf && tf->file.fd != NGX_INVALID_FILE) {
|
2010-07-28 23:49:34 +08:00
|
|
|
ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->file.log, 0,
|
2009-03-23 21:14:51 +08:00
|
|
|
"http file cache incomplete: \"%s\"",
|
|
|
|
tf->file.name.data);
|
|
|
|
|
|
|
|
if (ngx_delete_file(tf->file.name.data) == NGX_FILE_ERROR) {
|
2010-07-28 23:49:34 +08:00
|
|
|
ngx_log_error(NGX_LOG_CRIT, c->file.log, ngx_errno,
|
2009-03-23 21:14:51 +08:00
|
|
|
ngx_delete_file_n " \"%s\" failed",
|
|
|
|
tf->file.name.data);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
ngx_http_file_cache_cleanup(void *data)
|
|
|
|
{
|
|
|
|
ngx_http_cache_t *c = data;
|
|
|
|
|
|
|
|
if (c->updated) {
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->file.log, 0,
|
|
|
|
"http file cache cleanup");
|
|
|
|
|
2010-07-28 23:49:34 +08:00
|
|
|
if (c->updating) {
|
|
|
|
ngx_log_error(NGX_LOG_ALERT, c->file.log, 0,
|
|
|
|
"stalled cache updating, error:%ui", c->error);
|
2009-03-23 21:14:51 +08:00
|
|
|
}
|
|
|
|
|
2010-07-28 23:49:34 +08:00
|
|
|
ngx_http_file_cache_free(c, NULL);
|
2009-03-23 21:14:51 +08:00
|
|
|
}
|
2004-12-21 20:30:30 +08:00
|
|
|
|
|
|
|
|
2009-03-23 21:14:51 +08:00
|
|
|
static time_t
|
2009-03-30 15:45:55 +08:00
|
|
|
ngx_http_file_cache_forced_expire(ngx_http_file_cache_t *cache)
|
|
|
|
{
|
|
|
|
u_char *name;
|
|
|
|
size_t len;
|
|
|
|
time_t wait;
|
|
|
|
ngx_uint_t tries;
|
|
|
|
ngx_path_t *path;
|
|
|
|
ngx_queue_t *q;
|
|
|
|
ngx_http_file_cache_node_t *fcn;
|
|
|
|
|
|
|
|
ngx_log_debug0(NGX_LOG_DEBUG_HTTP, ngx_cycle->log, 0,
|
|
|
|
"http file cache forced expire");
|
|
|
|
|
|
|
|
path = cache->path;
|
|
|
|
len = path->name.len + 1 + path->len + 2 * NGX_HTTP_CACHE_KEY_LEN;
|
|
|
|
|
|
|
|
name = ngx_alloc(len + 1, ngx_cycle->log);
|
|
|
|
if (name == NULL) {
|
2009-04-11 01:46:25 +08:00
|
|
|
return 10;
|
2009-03-30 15:45:55 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
ngx_memcpy(name, path->name.data, path->name.len);
|
|
|
|
|
2009-04-11 01:46:25 +08:00
|
|
|
wait = 10;
|
2010-08-02 20:34:15 +08:00
|
|
|
tries = 20;
|
2009-03-30 15:45:55 +08:00
|
|
|
|
|
|
|
ngx_shmtx_lock(&cache->shpool->mutex);
|
|
|
|
|
2009-04-19 03:27:28 +08:00
|
|
|
for (q = ngx_queue_last(&cache->sh->queue);
|
|
|
|
q != ngx_queue_sentinel(&cache->sh->queue);
|
2009-03-30 15:45:55 +08:00
|
|
|
q = ngx_queue_prev(q))
|
|
|
|
{
|
|
|
|
fcn = ngx_queue_data(q, ngx_http_file_cache_node_t, queue);
|
|
|
|
|
|
|
|
ngx_log_debug6(NGX_LOG_DEBUG_HTTP, ngx_cycle->log, 0,
|
|
|
|
"http file cache forced expire: #%d %d %02xd%02xd%02xd%02xd",
|
|
|
|
fcn->count, fcn->exists,
|
|
|
|
fcn->key[0], fcn->key[1], fcn->key[2], fcn->key[3]);
|
|
|
|
|
2010-08-02 20:32:33 +08:00
|
|
|
if (fcn->count == 0) {
|
|
|
|
ngx_http_file_cache_delete(cache, q, name);
|
2009-03-30 15:45:55 +08:00
|
|
|
|
2010-08-02 20:32:33 +08:00
|
|
|
} else {
|
2010-08-02 20:34:15 +08:00
|
|
|
if (--tries) {
|
2009-03-30 15:45:55 +08:00
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
|
|
|
wait = 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
ngx_shmtx_unlock(&cache->shpool->mutex);
|
|
|
|
|
|
|
|
ngx_free(name);
|
|
|
|
|
|
|
|
return wait;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static time_t
|
|
|
|
ngx_http_file_cache_expire(ngx_http_file_cache_t *cache)
|
2003-12-02 00:28:14 +08:00
|
|
|
{
|
2009-03-23 21:14:51 +08:00
|
|
|
u_char *name, *p;
|
|
|
|
size_t len;
|
|
|
|
time_t now, wait;
|
|
|
|
ngx_path_t *path;
|
|
|
|
ngx_queue_t *q;
|
|
|
|
ngx_http_file_cache_node_t *fcn;
|
|
|
|
u_char key[2 * NGX_HTTP_CACHE_KEY_LEN];
|
2003-12-02 00:28:14 +08:00
|
|
|
|
2009-03-23 21:14:51 +08:00
|
|
|
ngx_log_debug0(NGX_LOG_DEBUG_HTTP, ngx_cycle->log, 0,
|
|
|
|
"http file cache expire");
|
|
|
|
|
|
|
|
path = cache->path;
|
|
|
|
len = path->name.len + 1 + path->len + 2 * NGX_HTTP_CACHE_KEY_LEN;
|
|
|
|
|
2009-03-30 15:45:55 +08:00
|
|
|
name = ngx_alloc(len + 1, ngx_cycle->log);
|
|
|
|
if (name == NULL) {
|
2009-04-11 01:46:25 +08:00
|
|
|
return 10;
|
2009-03-30 15:45:55 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
ngx_memcpy(name, path->name.data, path->name.len);
|
|
|
|
|
2009-03-23 21:14:51 +08:00
|
|
|
now = ngx_time();
|
|
|
|
|
|
|
|
ngx_shmtx_lock(&cache->shpool->mutex);
|
|
|
|
|
2003-12-02 00:28:14 +08:00
|
|
|
for ( ;; ) {
|
2009-03-23 21:14:51 +08:00
|
|
|
|
2009-04-19 03:27:28 +08:00
|
|
|
if (ngx_queue_empty(&cache->sh->queue)) {
|
2009-04-11 01:46:25 +08:00
|
|
|
wait = 10;
|
2009-03-23 21:14:51 +08:00
|
|
|
break;
|
2003-12-02 00:28:14 +08:00
|
|
|
}
|
|
|
|
|
2009-04-19 03:27:28 +08:00
|
|
|
q = ngx_queue_last(&cache->sh->queue);
|
2009-03-23 21:14:51 +08:00
|
|
|
|
|
|
|
fcn = ngx_queue_data(q, ngx_http_file_cache_node_t, queue);
|
|
|
|
|
2009-03-30 15:45:55 +08:00
|
|
|
wait = fcn->expire - now;
|
2003-12-02 00:28:14 +08:00
|
|
|
|
2009-03-30 15:45:55 +08:00
|
|
|
if (wait > 0) {
|
2009-04-11 01:46:25 +08:00
|
|
|
wait = wait > 10 ? 10 : wait;
|
2009-03-30 15:45:55 +08:00
|
|
|
break;
|
2003-12-02 00:28:14 +08:00
|
|
|
}
|
|
|
|
|
2009-03-23 21:14:51 +08:00
|
|
|
ngx_log_debug6(NGX_LOG_DEBUG_HTTP, ngx_cycle->log, 0,
|
|
|
|
"http file cache expire: #%d %d %02xd%02xd%02xd%02xd",
|
|
|
|
fcn->count, fcn->exists,
|
|
|
|
fcn->key[0], fcn->key[1], fcn->key[2], fcn->key[3]);
|
2003-12-02 00:28:14 +08:00
|
|
|
|
2010-08-02 20:32:33 +08:00
|
|
|
if (fcn->count == 0) {
|
|
|
|
ngx_http_file_cache_delete(cache, q, name);
|
|
|
|
continue;
|
|
|
|
}
|
2009-03-23 21:14:51 +08:00
|
|
|
|
2010-08-02 20:32:33 +08:00
|
|
|
p = ngx_hex_dump(key, (u_char *) &fcn->node.key,
|
|
|
|
sizeof(ngx_rbtree_key_t));
|
|
|
|
len = NGX_HTTP_CACHE_KEY_LEN - sizeof(ngx_rbtree_key_t);
|
|
|
|
(void) ngx_hex_dump(p, fcn->key, len);
|
2009-03-23 21:14:51 +08:00
|
|
|
|
2010-08-02 20:32:33 +08:00
|
|
|
/*
|
|
|
|
* abnormally exited workers may leave locked cache entries,
|
|
|
|
* and although it may be safe to remove them completely,
|
|
|
|
* we prefer to remove them from inactive queue and rbtree
|
|
|
|
* only, and to allow other leaks
|
|
|
|
*/
|
2009-03-23 21:14:51 +08:00
|
|
|
|
2010-08-02 20:32:33 +08:00
|
|
|
ngx_queue_remove(q);
|
|
|
|
ngx_rbtree_delete(&cache->sh->rbtree, &fcn->node);
|
2003-12-02 00:28:14 +08:00
|
|
|
|
2010-08-02 20:32:33 +08:00
|
|
|
ngx_log_error(NGX_LOG_ALERT, ngx_cycle->log, 0,
|
|
|
|
"ignore long locked inactive cache entry %*s, count:%d",
|
|
|
|
2 * NGX_HTTP_CACHE_KEY_LEN, key, fcn->count);
|
2009-03-30 15:45:55 +08:00
|
|
|
}
|
2003-12-02 00:28:14 +08:00
|
|
|
|
2009-03-30 15:45:55 +08:00
|
|
|
ngx_shmtx_unlock(&cache->shpool->mutex);
|
2009-03-23 21:14:51 +08:00
|
|
|
|
2009-03-30 15:45:55 +08:00
|
|
|
ngx_free(name);
|
2009-03-23 21:14:51 +08:00
|
|
|
|
2009-03-30 15:45:55 +08:00
|
|
|
return wait;
|
|
|
|
}
|
2009-03-23 21:14:51 +08:00
|
|
|
|
|
|
|
|
2009-03-30 15:45:55 +08:00
|
|
|
static void
|
|
|
|
ngx_http_file_cache_delete(ngx_http_file_cache_t *cache, ngx_queue_t *q,
|
|
|
|
u_char *name)
|
|
|
|
{
|
|
|
|
u_char *p;
|
|
|
|
size_t len;
|
|
|
|
ngx_path_t *path;
|
|
|
|
ngx_http_file_cache_node_t *fcn;
|
2009-03-23 21:14:51 +08:00
|
|
|
|
2009-03-30 15:45:55 +08:00
|
|
|
fcn = ngx_queue_data(q, ngx_http_file_cache_node_t, queue);
|
2009-03-23 21:14:51 +08:00
|
|
|
|
2010-08-02 20:27:58 +08:00
|
|
|
if (fcn->exists) {
|
|
|
|
cache->sh->size -= (fcn->length + cache->bsize - 1) / cache->bsize;
|
2009-03-23 21:14:51 +08:00
|
|
|
|
2010-08-02 20:27:58 +08:00
|
|
|
path = cache->path;
|
|
|
|
p = name + path->name.len + 1 + path->len;
|
|
|
|
p = ngx_hex_dump(p, (u_char *) &fcn->node.key,
|
|
|
|
sizeof(ngx_rbtree_key_t));
|
|
|
|
len = NGX_HTTP_CACHE_KEY_LEN - sizeof(ngx_rbtree_key_t);
|
|
|
|
p = ngx_hex_dump(p, fcn->key, len);
|
|
|
|
*p = '\0';
|
2009-03-30 15:45:55 +08:00
|
|
|
|
2010-08-02 20:27:58 +08:00
|
|
|
fcn->count++;
|
|
|
|
ngx_shmtx_unlock(&cache->shpool->mutex);
|
2009-03-23 21:14:51 +08:00
|
|
|
|
2010-08-02 20:27:58 +08:00
|
|
|
len = path->name.len + 1 + path->len + 2 * NGX_HTTP_CACHE_KEY_LEN;
|
|
|
|
ngx_create_hashed_filename(path, name, len);
|
2009-03-23 21:14:51 +08:00
|
|
|
|
2010-08-02 20:27:58 +08:00
|
|
|
ngx_log_debug1(NGX_LOG_DEBUG_HTTP, ngx_cycle->log, 0,
|
|
|
|
"http file cache expire: \"%s\"", name);
|
2009-03-30 15:45:55 +08:00
|
|
|
|
2010-08-02 20:27:58 +08:00
|
|
|
if (ngx_delete_file(name) == NGX_FILE_ERROR) {
|
|
|
|
ngx_log_error(NGX_LOG_CRIT, ngx_cycle->log, ngx_errno,
|
|
|
|
ngx_delete_file_n " \"%s\" failed", name);
|
|
|
|
}
|
2009-03-30 15:45:55 +08:00
|
|
|
|
2010-08-02 20:27:58 +08:00
|
|
|
ngx_shmtx_lock(&cache->shpool->mutex);
|
|
|
|
fcn->count--;
|
2009-03-30 15:45:55 +08:00
|
|
|
}
|
|
|
|
|
2010-08-02 20:27:58 +08:00
|
|
|
if (fcn->count == 0) {
|
|
|
|
ngx_queue_remove(q);
|
|
|
|
ngx_rbtree_delete(&cache->sh->rbtree, &fcn->node);
|
|
|
|
ngx_slab_free_locked(cache->shpool, fcn);
|
|
|
|
}
|
2003-12-02 00:28:14 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
|
2009-03-30 15:45:55 +08:00
|
|
|
static time_t
|
|
|
|
ngx_http_file_cache_manager(void *data)
|
2009-03-23 21:14:51 +08:00
|
|
|
{
|
|
|
|
ngx_http_file_cache_t *cache = data;
|
|
|
|
|
2009-08-10 21:27:14 +08:00
|
|
|
off_t size;
|
|
|
|
time_t next;
|
2009-03-30 15:45:55 +08:00
|
|
|
|
|
|
|
next = ngx_http_file_cache_expire(cache);
|
|
|
|
|
|
|
|
cache->last = ngx_current_msec;
|
|
|
|
cache->files = 0;
|
|
|
|
|
|
|
|
for ( ;; ) {
|
|
|
|
ngx_shmtx_lock(&cache->shpool->mutex);
|
|
|
|
|
2009-04-19 03:27:28 +08:00
|
|
|
size = cache->sh->size;
|
2009-03-30 15:45:55 +08:00
|
|
|
|
|
|
|
ngx_shmtx_unlock(&cache->shpool->mutex);
|
|
|
|
|
2009-04-01 21:01:50 +08:00
|
|
|
ngx_log_debug1(NGX_LOG_DEBUG_HTTP, ngx_cycle->log, 0,
|
|
|
|
"http file cache size: %O", size);
|
|
|
|
|
2009-03-30 15:45:55 +08:00
|
|
|
if (size < cache->max_size) {
|
|
|
|
return next;
|
2009-03-23 21:14:51 +08:00
|
|
|
}
|
|
|
|
|
2009-03-30 15:45:55 +08:00
|
|
|
next = ngx_http_file_cache_forced_expire(cache);
|
|
|
|
|
|
|
|
if (ngx_http_file_cache_manager_sleep(cache) != NGX_OK) {
|
|
|
|
return next;
|
|
|
|
}
|
2009-03-23 21:14:51 +08:00
|
|
|
}
|
2009-03-30 15:45:55 +08:00
|
|
|
}
|
2009-03-23 21:14:51 +08:00
|
|
|
|
|
|
|
|
2009-08-10 21:27:14 +08:00
|
|
|
static void
|
|
|
|
ngx_http_file_cache_loader(void *data)
|
|
|
|
{
|
|
|
|
ngx_http_file_cache_t *cache = data;
|
|
|
|
|
|
|
|
ngx_tree_ctx_t tree;
|
|
|
|
|
|
|
|
if (!cache->sh->cold || cache->sh->loading) {
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!ngx_atomic_cmp_set(&cache->sh->loading, 0, ngx_pid)) {
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
ngx_log_debug0(NGX_LOG_DEBUG_HTTP, ngx_cycle->log, 0,
|
|
|
|
"http file cache loader");
|
|
|
|
|
|
|
|
tree.init_handler = NULL;
|
|
|
|
tree.file_handler = ngx_http_file_cache_manage_file;
|
|
|
|
tree.pre_tree_handler = ngx_http_file_cache_noop;
|
|
|
|
tree.post_tree_handler = ngx_http_file_cache_noop;
|
|
|
|
tree.spec_handler = ngx_http_file_cache_delete_file;
|
|
|
|
tree.data = cache;
|
|
|
|
tree.alloc = 0;
|
|
|
|
tree.log = ngx_cycle->log;
|
|
|
|
|
|
|
|
cache->last = ngx_current_msec;
|
|
|
|
cache->files = 0;
|
|
|
|
|
|
|
|
if (ngx_walk_tree(&tree, &cache->path->name) == NGX_ABORT) {
|
2009-08-10 23:57:42 +08:00
|
|
|
cache->sh->loading = 0;
|
2009-08-10 21:27:14 +08:00
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
cache->sh->cold = 0;
|
|
|
|
cache->sh->loading = 0;
|
|
|
|
|
|
|
|
ngx_log_error(NGX_LOG_NOTICE, ngx_cycle->log, 0,
|
|
|
|
"http file cache: %V %.3fM, bsize: %uz",
|
|
|
|
&cache->path->name,
|
|
|
|
((double) cache->sh->size * cache->bsize) / (1024 * 1024),
|
|
|
|
cache->bsize);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2009-03-30 15:45:55 +08:00
|
|
|
static ngx_int_t
|
|
|
|
ngx_http_file_cache_manager_sleep(ngx_http_file_cache_t *cache)
|
|
|
|
{
|
|
|
|
ngx_msec_t elapsed;
|
|
|
|
|
|
|
|
if (cache->files++ > 100) {
|
|
|
|
|
2010-03-25 17:10:10 +08:00
|
|
|
ngx_time_update();
|
2009-03-30 15:45:55 +08:00
|
|
|
|
|
|
|
elapsed = ngx_abs((ngx_msec_int_t) (ngx_current_msec - cache->last));
|
2009-03-23 21:14:51 +08:00
|
|
|
|
2009-03-30 15:45:55 +08:00
|
|
|
ngx_log_debug1(NGX_LOG_DEBUG_HTTP, ngx_cycle->log, 0,
|
|
|
|
"http file cache manager time: %M", elapsed);
|
|
|
|
|
|
|
|
if (elapsed > 200) {
|
|
|
|
|
|
|
|
/*
|
|
|
|
* if processing 100 files takes more than 200ms,
|
|
|
|
* it seems that many operations require disk i/o,
|
|
|
|
* therefore sleep 200ms
|
|
|
|
*/
|
|
|
|
|
|
|
|
ngx_msleep(200);
|
|
|
|
|
2010-03-25 17:10:10 +08:00
|
|
|
ngx_time_update();
|
2009-03-30 15:45:55 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
cache->last = ngx_current_msec;
|
|
|
|
cache->files = 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
return (ngx_quit || ngx_terminate) ? NGX_ABORT : NGX_OK;
|
2009-03-23 21:14:51 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static ngx_int_t
|
2009-03-30 15:45:55 +08:00
|
|
|
ngx_http_file_cache_noop(ngx_tree_ctx_t *ctx, ngx_str_t *path)
|
2009-03-23 21:14:51 +08:00
|
|
|
{
|
|
|
|
return NGX_OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static ngx_int_t
|
2009-03-30 15:45:55 +08:00
|
|
|
ngx_http_file_cache_manage_file(ngx_tree_ctx_t *ctx, ngx_str_t *path)
|
2003-12-02 00:28:14 +08:00
|
|
|
{
|
2009-03-30 15:45:55 +08:00
|
|
|
ngx_http_file_cache_t *cache;
|
|
|
|
|
|
|
|
cache = ctx->data;
|
|
|
|
|
|
|
|
if (ngx_http_file_cache_add_file(ctx, path) != NGX_OK) {
|
|
|
|
(void) ngx_http_file_cache_delete_file(ctx, path);
|
|
|
|
}
|
|
|
|
|
|
|
|
return ngx_http_file_cache_manager_sleep(cache);
|
|
|
|
}
|
2009-03-23 21:14:51 +08:00
|
|
|
|
2009-03-30 15:45:55 +08:00
|
|
|
|
|
|
|
static ngx_int_t
|
|
|
|
ngx_http_file_cache_add_file(ngx_tree_ctx_t *ctx, ngx_str_t *name)
|
|
|
|
{
|
|
|
|
u_char *p;
|
|
|
|
ngx_fd_t fd;
|
|
|
|
ngx_int_t n;
|
|
|
|
ngx_uint_t i;
|
|
|
|
ngx_file_info_t fi;
|
|
|
|
ngx_http_cache_t c;
|
|
|
|
ngx_http_file_cache_t *cache;
|
|
|
|
ngx_http_file_cache_header_t h;
|
|
|
|
|
|
|
|
if (name->len < 2 * NGX_HTTP_CACHE_KEY_LEN) {
|
|
|
|
return NGX_ERROR;
|
2009-03-23 21:14:51 +08:00
|
|
|
}
|
|
|
|
|
2009-03-30 15:45:55 +08:00
|
|
|
ngx_memzero(&c, sizeof(ngx_http_cache_t));
|
|
|
|
|
|
|
|
fd = ngx_open_file(name->data, NGX_FILE_RDONLY, NGX_FILE_OPEN, 0);
|
|
|
|
|
|
|
|
if (fd == NGX_INVALID_FILE) {
|
|
|
|
ngx_log_error(NGX_LOG_CRIT, ctx->log, ngx_errno,
|
|
|
|
ngx_open_file_n " \"%s\" failed", name->data);
|
|
|
|
return NGX_ERROR;
|
|
|
|
}
|
|
|
|
|
|
|
|
c.file.fd = fd;
|
|
|
|
c.file.name = *name;
|
|
|
|
c.file.log = ctx->log;
|
|
|
|
|
|
|
|
n = ngx_read_file(&c.file, (u_char *) &h,
|
|
|
|
sizeof(ngx_http_file_cache_header_t), 0);
|
|
|
|
if (n == NGX_ERROR) {
|
|
|
|
return NGX_ERROR;
|
|
|
|
}
|
|
|
|
|
|
|
|
if ((size_t) n < sizeof(ngx_http_file_cache_header_t)) {
|
|
|
|
ngx_log_error(NGX_LOG_CRIT, ctx->log, 0,
|
|
|
|
"cache file \"%s\" is too small", name->data);
|
|
|
|
return NGX_ERROR;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (ngx_fd_info(fd, &fi) == NGX_FILE_ERROR) {
|
|
|
|
ngx_log_error(NGX_LOG_CRIT, ctx->log, ngx_errno,
|
|
|
|
ngx_fd_info_n " \"%s\" failed", name->data);
|
|
|
|
|
|
|
|
} else {
|
|
|
|
c.uniq = ngx_file_uniq(&fi);
|
|
|
|
c.valid_sec = h.valid_sec;
|
|
|
|
c.valid_msec = h.valid_msec;
|
|
|
|
c.body_start = h.body_start;
|
|
|
|
c.length = ngx_file_size(&fi);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (ngx_close_file(fd) == NGX_FILE_ERROR) {
|
|
|
|
ngx_log_error(NGX_LOG_ALERT, ctx->log, ngx_errno,
|
|
|
|
ngx_close_file_n " \"%s\" failed", name->data);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (c.body_start == 0) {
|
|
|
|
return NGX_ERROR;
|
|
|
|
}
|
|
|
|
|
|
|
|
p = &name->data[name->len - 2 * NGX_HTTP_CACHE_KEY_LEN];
|
2009-03-23 21:14:51 +08:00
|
|
|
|
|
|
|
for (i = 0; i < NGX_HTTP_CACHE_KEY_LEN; i++) {
|
|
|
|
n = ngx_hextoi(p, 2);
|
2003-12-02 00:28:14 +08:00
|
|
|
|
2009-03-23 21:14:51 +08:00
|
|
|
if (n == NGX_ERROR) {
|
2009-03-30 15:45:55 +08:00
|
|
|
return NGX_ERROR;
|
2009-03-23 21:14:51 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
p += 2;
|
2003-12-02 00:28:14 +08:00
|
|
|
|
2009-03-30 15:45:55 +08:00
|
|
|
c.key[i] = (u_char) n;
|
2009-03-23 21:14:51 +08:00
|
|
|
}
|
2003-12-02 00:28:14 +08:00
|
|
|
|
2009-03-23 21:14:51 +08:00
|
|
|
cache = ctx->data;
|
2004-12-21 20:30:30 +08:00
|
|
|
|
2009-03-30 15:45:55 +08:00
|
|
|
return ngx_http_file_cache_add(cache, &c);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static ngx_int_t
|
|
|
|
ngx_http_file_cache_add(ngx_http_file_cache_t *cache, ngx_http_cache_t *c)
|
|
|
|
{
|
|
|
|
ngx_http_file_cache_node_t *fcn;
|
|
|
|
|
2009-03-23 21:14:51 +08:00
|
|
|
ngx_shmtx_lock(&cache->shpool->mutex);
|
2003-12-02 00:28:14 +08:00
|
|
|
|
2009-03-30 15:45:55 +08:00
|
|
|
fcn = ngx_http_file_cache_lookup(cache, c->key);
|
2003-12-02 00:28:14 +08:00
|
|
|
|
2009-03-30 15:45:55 +08:00
|
|
|
if (fcn == NULL) {
|
2003-12-02 00:28:14 +08:00
|
|
|
|
2009-03-30 15:45:55 +08:00
|
|
|
fcn = ngx_slab_alloc_locked(cache->shpool,
|
|
|
|
sizeof(ngx_http_file_cache_node_t));
|
|
|
|
if (fcn == NULL) {
|
|
|
|
ngx_shmtx_unlock(&cache->shpool->mutex);
|
|
|
|
return NGX_ERROR;
|
|
|
|
}
|
|
|
|
|
|
|
|
ngx_memcpy((u_char *) &fcn->node.key, c->key, sizeof(ngx_rbtree_key_t));
|
|
|
|
|
|
|
|
ngx_memcpy(fcn->key, &c->key[sizeof(ngx_rbtree_key_t)],
|
|
|
|
NGX_HTTP_CACHE_KEY_LEN - sizeof(ngx_rbtree_key_t));
|
|
|
|
|
2009-04-19 03:27:28 +08:00
|
|
|
ngx_rbtree_insert(&cache->sh->rbtree, &fcn->node);
|
2009-03-30 15:45:55 +08:00
|
|
|
|
|
|
|
fcn->uses = 1;
|
|
|
|
fcn->count = 0;
|
|
|
|
fcn->valid_msec = c->valid_msec;
|
|
|
|
fcn->error = 0;
|
|
|
|
fcn->exists = 1;
|
|
|
|
fcn->uniq = c->uniq;
|
|
|
|
fcn->valid_sec = c->valid_sec;
|
|
|
|
fcn->body_start = c->body_start;
|
|
|
|
fcn->length = c->length;
|
|
|
|
|
2009-04-19 03:27:28 +08:00
|
|
|
cache->sh->size += (c->length + cache->bsize - 1) / cache->bsize;
|
2009-03-30 15:45:55 +08:00
|
|
|
|
|
|
|
} else {
|
|
|
|
ngx_queue_remove(&fcn->queue);
|
2003-12-02 00:28:14 +08:00
|
|
|
}
|
|
|
|
|
2009-03-30 15:45:55 +08:00
|
|
|
fcn->expire = ngx_time() + cache->inactive;
|
2009-03-23 21:14:51 +08:00
|
|
|
|
2009-04-19 03:27:28 +08:00
|
|
|
ngx_queue_insert_head(&cache->sh->queue, &fcn->queue);
|
2009-03-30 15:45:55 +08:00
|
|
|
|
|
|
|
ngx_shmtx_unlock(&cache->shpool->mutex);
|
|
|
|
|
|
|
|
return NGX_OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static ngx_int_t
|
|
|
|
ngx_http_file_cache_delete_file(ngx_tree_ctx_t *ctx, ngx_str_t *path)
|
|
|
|
{
|
2009-03-23 21:14:51 +08:00
|
|
|
ngx_log_debug1(NGX_LOG_DEBUG_HTTP, ctx->log, 0,
|
2009-03-30 15:45:55 +08:00
|
|
|
"http file cache delete: \"%s\"", path->data);
|
2009-03-23 21:14:51 +08:00
|
|
|
|
|
|
|
if (ngx_delete_file(path->data) == NGX_FILE_ERROR) {
|
|
|
|
ngx_log_error(NGX_LOG_CRIT, ctx->log, ngx_errno,
|
|
|
|
ngx_delete_file_n " \"%s\" failed", path->data);
|
2003-12-02 00:28:14 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
return NGX_OK;
|
|
|
|
}
|
2009-03-23 21:14:51 +08:00
|
|
|
|
|
|
|
|
|
|
|
time_t
|
|
|
|
ngx_http_file_cache_valid(ngx_array_t *cache_valid, ngx_uint_t status)
|
|
|
|
{
|
|
|
|
ngx_uint_t i;
|
|
|
|
ngx_http_cache_valid_t *valid;
|
|
|
|
|
2009-03-30 22:23:07 +08:00
|
|
|
if (cache_valid == NULL) {
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2009-03-23 21:14:51 +08:00
|
|
|
valid = cache_valid->elts;
|
|
|
|
for (i = 0; i < cache_valid->nelts; i++) {
|
|
|
|
|
|
|
|
if (valid[i].status == 0) {
|
|
|
|
return valid[i].valid;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (valid[i].status == status) {
|
|
|
|
return valid[i].valid;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
char *
|
|
|
|
ngx_http_file_cache_set_slot(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
|
|
{
|
2009-03-30 15:45:55 +08:00
|
|
|
off_t max_size;
|
2009-03-23 21:14:51 +08:00
|
|
|
u_char *last, *p;
|
2009-03-30 15:45:55 +08:00
|
|
|
time_t inactive;
|
2009-03-23 21:14:51 +08:00
|
|
|
ssize_t size;
|
|
|
|
ngx_str_t s, name, *value;
|
|
|
|
ngx_uint_t i, n;
|
|
|
|
ngx_http_file_cache_t *cache;
|
|
|
|
|
|
|
|
cache = ngx_pcalloc(cf->pool, sizeof(ngx_http_file_cache_t));
|
|
|
|
if (cache == NULL) {
|
|
|
|
return NGX_CONF_ERROR;
|
|
|
|
}
|
|
|
|
|
|
|
|
cache->path = ngx_pcalloc(cf->pool, sizeof(ngx_path_t));
|
|
|
|
if (cache->path == NULL) {
|
|
|
|
return NGX_CONF_ERROR;
|
|
|
|
}
|
|
|
|
|
|
|
|
inactive = 600;
|
|
|
|
|
|
|
|
name.len = 0;
|
|
|
|
size = 0;
|
2009-03-30 15:45:55 +08:00
|
|
|
max_size = NGX_MAX_OFF_T_VALUE;
|
2009-03-23 21:14:51 +08:00
|
|
|
|
|
|
|
value = cf->args->elts;
|
|
|
|
|
|
|
|
cache->path->name = value[1];
|
|
|
|
|
|
|
|
if (cache->path->name.data[cache->path->name.len - 1] == '/') {
|
|
|
|
cache->path->name.len--;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (ngx_conf_full_name(cf->cycle, &cache->path->name, 0) != NGX_OK) {
|
|
|
|
return NGX_CONF_ERROR;
|
|
|
|
}
|
|
|
|
|
|
|
|
for (i = 2; i < cf->args->nelts; i++) {
|
|
|
|
|
|
|
|
if (ngx_strncmp(value[i].data, "levels=", 7) == 0) {
|
|
|
|
|
|
|
|
p = value[i].data + 7;
|
|
|
|
last = value[i].data + value[i].len;
|
|
|
|
|
2009-04-06 16:35:34 +08:00
|
|
|
for (n = 0; n < 3 && p < last; n++) {
|
2009-03-23 21:14:51 +08:00
|
|
|
|
2009-04-06 16:35:34 +08:00
|
|
|
if (*p > '0' && *p < '3') {
|
2009-03-23 21:14:51 +08:00
|
|
|
|
|
|
|
cache->path->level[n] = *p++ - '0';
|
|
|
|
cache->path->len += cache->path->level[n] + 1;
|
|
|
|
|
|
|
|
if (p == last) {
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
2009-04-06 16:35:34 +08:00
|
|
|
if (*p++ == ':' && n < 2 && p != last) {
|
2009-03-23 21:14:51 +08:00
|
|
|
continue;
|
|
|
|
}
|
2009-04-06 16:35:34 +08:00
|
|
|
|
|
|
|
goto invalid_levels;
|
2009-03-23 21:14:51 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
goto invalid_levels;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (cache->path->len < 10 + 3) {
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
|
|
|
invalid_levels:
|
|
|
|
|
|
|
|
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
|
"invalid \"levels\" \"%V\"", &value[i]);
|
|
|
|
return NGX_CONF_ERROR;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (ngx_strncmp(value[i].data, "keys_zone=", 10) == 0) {
|
|
|
|
|
|
|
|
name.data = value[i].data + 10;
|
|
|
|
|
|
|
|
p = (u_char *) ngx_strchr(name.data, ':');
|
|
|
|
|
|
|
|
if (p) {
|
2009-04-17 03:25:09 +08:00
|
|
|
*p = '\0';
|
|
|
|
|
2009-03-23 21:14:51 +08:00
|
|
|
name.len = p - name.data;
|
|
|
|
|
|
|
|
p++;
|
|
|
|
|
|
|
|
s.len = value[i].data + value[i].len - p;
|
|
|
|
s.data = p;
|
|
|
|
|
|
|
|
size = ngx_parse_size(&s);
|
|
|
|
if (size > 8191) {
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
|
"invalid keys zone size \"%V\"", &value[i]);
|
|
|
|
return NGX_CONF_ERROR;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (ngx_strncmp(value[i].data, "inactive=", 9) == 0) {
|
|
|
|
|
|
|
|
s.len = value[i].len - 9;
|
|
|
|
s.data = value[i].data + 9;
|
|
|
|
|
|
|
|
inactive = ngx_parse_time(&s, 1);
|
|
|
|
if (inactive < 0) {
|
|
|
|
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
|
"invalid inactive value \"%V\"", &value[i]);
|
|
|
|
return NGX_CONF_ERROR;
|
|
|
|
}
|
|
|
|
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
2009-03-30 15:45:55 +08:00
|
|
|
if (ngx_strncmp(value[i].data, "max_size=", 9) == 0) {
|
2009-03-23 21:14:51 +08:00
|
|
|
|
2009-03-30 15:45:55 +08:00
|
|
|
s.len = value[i].len - 9;
|
|
|
|
s.data = value[i].data + 9;
|
2009-03-23 21:14:51 +08:00
|
|
|
|
2009-03-30 15:45:55 +08:00
|
|
|
max_size = ngx_parse_offset(&s);
|
|
|
|
if (max_size < 0) {
|
2009-03-23 21:14:51 +08:00
|
|
|
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
2009-03-30 15:45:55 +08:00
|
|
|
"invalid max_size value \"%V\"", &value[i]);
|
2009-03-23 21:14:51 +08:00
|
|
|
return NGX_CONF_ERROR;
|
|
|
|
}
|
|
|
|
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
|
|
|
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
|
"invalid parameter \"%V\"", &value[i]);
|
|
|
|
return NGX_CONF_ERROR;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (name.len == 0 || size == 0) {
|
|
|
|
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
|
"\"%V\" must have \"keys_zone\" parameter",
|
|
|
|
&cmd->name);
|
|
|
|
return NGX_CONF_ERROR;
|
|
|
|
}
|
|
|
|
|
2009-03-30 15:45:55 +08:00
|
|
|
cache->path->manager = ngx_http_file_cache_manager;
|
2009-08-10 21:27:14 +08:00
|
|
|
cache->path->loader = ngx_http_file_cache_loader;
|
2009-03-23 21:14:51 +08:00
|
|
|
cache->path->data = cache;
|
|
|
|
|
|
|
|
if (ngx_add_path(cf, &cache->path) != NGX_OK) {
|
|
|
|
return NGX_CONF_ERROR;
|
|
|
|
}
|
|
|
|
|
|
|
|
cache->shm_zone = ngx_shared_memory_add(cf, &name, size, cmd->post);
|
|
|
|
if (cache->shm_zone == NULL) {
|
|
|
|
return NGX_CONF_ERROR;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (cache->shm_zone->data) {
|
|
|
|
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
|
"duplicate zone \"%V\"", &name);
|
|
|
|
return NGX_CONF_ERROR;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
cache->shm_zone->init = ngx_http_file_cache_init;
|
|
|
|
cache->shm_zone->data = cache;
|
|
|
|
|
|
|
|
cache->inactive = inactive;
|
2009-03-30 15:45:55 +08:00
|
|
|
cache->max_size = max_size;
|
2009-03-23 21:14:51 +08:00
|
|
|
|
|
|
|
return NGX_CONF_OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
char *
|
|
|
|
ngx_http_file_cache_valid_set_slot(ngx_conf_t *cf, ngx_command_t *cmd,
|
|
|
|
void *conf)
|
|
|
|
{
|
|
|
|
char *p = conf;
|
|
|
|
|
|
|
|
time_t valid;
|
|
|
|
ngx_str_t *value;
|
|
|
|
ngx_uint_t i, n, status;
|
|
|
|
ngx_array_t **a;
|
|
|
|
ngx_http_cache_valid_t *v;
|
|
|
|
static ngx_uint_t statuses[] = { 200, 301, 302 };
|
|
|
|
|
|
|
|
a = (ngx_array_t **) (p + cmd->offset);
|
|
|
|
|
|
|
|
if (*a == NGX_CONF_UNSET_PTR) {
|
|
|
|
*a = ngx_array_create(cf->pool, 1, sizeof(ngx_http_cache_valid_t));
|
|
|
|
if (*a == NULL) {
|
|
|
|
return NGX_CONF_ERROR;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
value = cf->args->elts;
|
|
|
|
n = cf->args->nelts - 1;
|
|
|
|
|
|
|
|
valid = ngx_parse_time(&value[n], 1);
|
|
|
|
if (valid < 0) {
|
|
|
|
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
|
"invalid time value \"%V\"", &value[n]);
|
|
|
|
return NGX_CONF_ERROR;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (n == 1) {
|
|
|
|
|
|
|
|
for (i = 0; i < 3; i++) {
|
|
|
|
v = ngx_array_push(*a);
|
|
|
|
if (v == NULL) {
|
|
|
|
return NGX_CONF_ERROR;
|
|
|
|
}
|
|
|
|
|
|
|
|
v->status = statuses[i];
|
|
|
|
v->valid = valid;
|
|
|
|
}
|
|
|
|
|
|
|
|
return NGX_CONF_OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
for (i = 1; i < n; i++) {
|
|
|
|
|
|
|
|
if (ngx_strcmp(value[i].data, "any") == 0) {
|
|
|
|
|
|
|
|
status = 0;
|
|
|
|
|
|
|
|
} else {
|
|
|
|
|
|
|
|
status = ngx_atoi(value[i].data, value[i].len);
|
|
|
|
if (status < 100) {
|
|
|
|
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
|
"invalid status \"%V\"", &value[i]);
|
|
|
|
return NGX_CONF_ERROR;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
v = ngx_array_push(*a);
|
|
|
|
if (v == NULL) {
|
|
|
|
return NGX_CONF_ERROR;
|
|
|
|
}
|
|
|
|
|
|
|
|
v->status = status;
|
|
|
|
v->valid = valid;
|
|
|
|
}
|
|
|
|
|
|
|
|
return NGX_CONF_OK;
|
|
|
|
}
|
2010-05-24 19:01:05 +08:00
|
|
|
|
|
|
|
|
|
|
|
ngx_int_t
|
|
|
|
ngx_http_cache(ngx_http_request_t *r, ngx_array_t *no_cache)
|
|
|
|
{
|
|
|
|
ngx_str_t val;
|
|
|
|
ngx_uint_t i;
|
|
|
|
ngx_http_complex_value_t *cv;
|
|
|
|
|
|
|
|
cv = no_cache->elts;
|
|
|
|
|
|
|
|
for (i = 0; i < no_cache->nelts; i++) {
|
|
|
|
if (ngx_http_complex_value(r, &cv[i], &val) != NGX_OK) {
|
|
|
|
return NGX_ERROR;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (val.len && val.data[0] != '0') {
|
|
|
|
return NGX_DECLINED;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return NGX_OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
char *
|
|
|
|
ngx_http_no_cache_set_slot(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
|
|
{
|
|
|
|
char *p = conf;
|
|
|
|
|
|
|
|
ngx_str_t *value;
|
|
|
|
ngx_uint_t i;
|
|
|
|
ngx_array_t **a;
|
|
|
|
ngx_http_complex_value_t *cv;
|
|
|
|
ngx_http_compile_complex_value_t ccv;
|
|
|
|
|
|
|
|
a = (ngx_array_t **) (p + cmd->offset);
|
|
|
|
|
|
|
|
if (*a == NGX_CONF_UNSET_PTR) {
|
|
|
|
*a = ngx_array_create(cf->pool, 1, sizeof(ngx_http_complex_value_t));
|
|
|
|
if (*a == NULL) {
|
|
|
|
return NGX_CONF_ERROR;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
value = cf->args->elts;
|
|
|
|
|
|
|
|
for (i = 1; i < cf->args->nelts; i++) {
|
|
|
|
cv = ngx_array_push(*a);
|
|
|
|
if (cv == NULL) {
|
|
|
|
return NGX_CONF_ERROR;
|
|
|
|
}
|
|
|
|
|
|
|
|
ngx_memzero(&ccv, sizeof(ngx_http_compile_complex_value_t));
|
|
|
|
|
|
|
|
ccv.cf = cf;
|
|
|
|
ccv.value = &value[i];
|
|
|
|
ccv.complex_value = cv;
|
|
|
|
|
|
|
|
if (ngx_http_compile_complex_value(&ccv) != NGX_OK) {
|
|
|
|
return NGX_CONF_ERROR;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return NGX_CONF_OK;
|
|
|
|
}
|