53 lines
1.8 KiB
C++
53 lines
1.8 KiB
C++
/**
|
|
* Copyright (c) 2021 OceanBase
|
|
* OceanBase CE is licensed under Mulan PubL v2.
|
|
* You can use this software according to the terms and conditions of the Mulan PubL v2.
|
|
* You may obtain a copy of Mulan PubL v2 at:
|
|
* http://license.coscl.org.cn/MulanPubL-2.0
|
|
* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
|
|
* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
|
|
* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
|
|
* See the Mulan PubL v2 for more details.
|
|
*/
|
|
|
|
#include "share/stat/ob_opt_table_stat_cache.h"
|
|
#include "lib/stat/ob_diagnose_info.h"
|
|
|
|
namespace oceanbase {
|
|
namespace common {
|
|
|
|
/**
|
|
* @return OB_SUCCESS if value corresponding to the key is successfully fetched
|
|
* OB_ENTRY_NOT_EXIST if values is not available from the cache
|
|
* other error codes if unexpected errors occurred
|
|
*/
|
|
int ObOptTableStatCache::get_value(const ObOptTableStat::Key &key, ObOptTableStatHandle &handle)
|
|
{
|
|
int ret = OB_SUCCESS;
|
|
if (OB_FAIL(get(key, handle.stat_, handle.handle_))) {
|
|
if (OB_ENTRY_NOT_EXIST != ret) {
|
|
COMMON_LOG(WARN, "fail to get value from cache", K(ret), K(key));
|
|
}
|
|
EVENT_INC(ObStatEventIds::OPT_TABLE_STAT_CACHE_MISS);
|
|
} else {
|
|
handle.cache_ = this;
|
|
EVENT_INC(ObStatEventIds::OPT_TABLE_STAT_CACHE_HIT);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
int ObOptTableStatCache::put_value(const ObOptTableStat::Key &key, const ObOptTableStat &value)
|
|
{
|
|
return put(key, value, true /* overwrite */);
|
|
}
|
|
|
|
int ObOptTableStatCache::put_and_fetch_value(const ObOptTableStat::Key &key,
|
|
const ObOptTableStat &value,
|
|
ObOptTableStatHandle &handle)
|
|
{
|
|
return put_and_fetch(key, value, handle.stat_, handle.handle_, true /* overwrite */ );
|
|
}
|
|
|
|
}
|
|
}
|