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