75 lines
2.6 KiB
C++
75 lines
2.6 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
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#include "ob_sub_trans_ctrl.h"
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#include "lib/utility/utility.h"
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#include "sql/engine/ob_exec_context.h"
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#include "sql/engine/px/ob_dfo.h"
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#include "sql/ob_sql_trans_control.h"
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using namespace oceanbase::common;
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using namespace oceanbase::sql;
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int ObSubTransCtrl::start_participants(ObExecContext& ctx, ObPxSqcMeta& sqc)
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{
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int ret = OB_SUCCESS;
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if (OB_FAIL(get_participants(sqc, participants_))) {
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LOG_WARN("fail to get participants", K(ret));
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} else if (participants_.count() <= 0) {
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// skip
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LOG_TRACE("sub trans start participant, the number of participants is zero", K(participants_.count()));
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} else if (OB_UNLIKELY(OB_SUCCESS != (ret = ObSqlTransControl::start_participant(ctx, participants_, true)))) {
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LOG_WARN("fail to start participant", K(ret));
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}
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trans_state_.set_start_participant_executed(OB_SUCCESS == ret);
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LOG_TRACE("Transaction start:", K_(participants));
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return ret;
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}
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int ObSubTransCtrl::end_participants(ObExecContext& ctx, bool is_rollback)
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{
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int ret = OB_SUCCESS;
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if (trans_state_.is_start_participant_executed()) {
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if (participants_.count() <= 0) {
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// skip
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} else if (OB_FAIL(ObSqlTransControl::end_participant(ctx, is_rollback, participants_))) {
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LOG_WARN("fail to end participant", K(ret));
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}
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LOG_TRACE("Transaction end:", K_(participants));
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trans_state_.clear_start_participant_executed();
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}
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return ret;
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}
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int ObSubTransCtrl::get_participants(ObPxSqcMeta& sqc, common::ObPartitionArray& participants) const
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{
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int ret = OB_SUCCESS;
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// partitions keys
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ObPartitionReplicaLocationIArray* locations;
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locations = &sqc.get_access_table_locations();
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if (OB_SUCC(ret) && OB_NOT_NULL(locations)) {
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ObPartitionKey pkey;
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for (int64_t i = 0; OB_SUCC(ret) && i < locations->count(); ++i) {
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if (OB_FAIL(locations->at(i).get_partition_key(pkey))) {
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LOG_WARN("fail get pkey", K(i), K(ret));
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} else if (is_virtual_table(pkey.get_table_id())) {
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// skip
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} else if (OB_FAIL(add_var_to_array_no_dup(participants, pkey))) {
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LOG_WARN("add var to array no dup failed", K(ret));
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}
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}
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}
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return ret;
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}
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