62 lines
1.9 KiB
C++
62 lines
1.9 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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#define USING_LOG_PREFIX SQL_PC
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#include "ob_plan_cache_callback.h"
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#include "sql/plan_cache/ob_plan_cache_value.h"
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#include "sql/plan_cache/ob_plan_cache.h"
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using namespace oceanbase;
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using namespace oceanbase::sql;
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using namespace oceanbase::common;
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void ObLibCacheAtomicOp::operator()(LibCacheKV &entry)
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{
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if (NULL != entry.second) {
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entry.second->inc_ref_count(ref_handle_);
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cache_node_ = entry.second;
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SQL_PC_LOG(DEBUG, "succ to get cache_node", "ref_count", cache_node_->get_ref_count());
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} else {
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// if no cache node found, no need to do anything now
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}
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}
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//get cache node and lock
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int ObLibCacheAtomicOp::get_value(ObILibCacheNode *&cache_node)
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{
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int ret = OB_SUCCESS;
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cache_node = NULL;
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if (OB_ISNULL(cache_node_)) {
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ret = OB_NOT_INIT;
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SQL_PC_LOG(WARN, "invalid argument", K(cache_node_));
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} else if (OB_SUCC(lock(*cache_node_))) {
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cache_node = cache_node_;
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} else {
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if (NULL != cache_node_) {
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cache_node_->dec_ref_count(ref_handle_);
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}
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SQL_PC_LOG(DEBUG, "failed to get read lock of lib cache value", K(ret));
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}
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return ret;
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}
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void ObCacheObjAtomicOp::operator()(ObjKV &entry)
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{
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if (NULL != entry.second) {
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cache_obj_ = entry.second;
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cache_obj_->inc_ref_count(ref_handle_);
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SQL_PC_LOG(DEBUG, "succ to get plan", "ref_count", cache_obj_->get_ref_count());
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} else {
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// do nothing
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}
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}
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