mirror of https://gitee.com/bigwinds/arangodb
125 lines
4.1 KiB
C++
125 lines
4.1 KiB
C++
////////////////////////////////////////////////////////////////////////////////
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/// @brief transaction
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///
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/// @file
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///
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/// DISCLAIMER
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///
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/// Copyright 2004-2013 triAGENS GmbH, Cologne, Germany
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///
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/// Licensed under the Apache License, Version 2.0 (the "License");
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/// you may not use this file except in compliance with the License.
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/// You may obtain a copy of the License at
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///
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/// http://www.apache.org/licenses/LICENSE-2.0
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///
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/// Unless required by applicable law or agreed to in writing, software
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/// distributed under the License is distributed on an "AS IS" BASIS,
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/// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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/// See the License for the specific language governing permissions and
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/// limitations under the License.
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///
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/// Copyright holder is triAGENS GmbH, Cologne, Germany
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///
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/// @author Jan Steemann
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/// @author Copyright 2011-2013, triAGENS GmbH, Cologne, Germany
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////////////////////////////////////////////////////////////////////////////////
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#include "Transaction.h"
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#include "BasicsC/logging.h"
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#include "Transaction/Manager.h"
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using namespace std;
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using namespace triagens::transaction;
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#define TRANSACTION_LOG(msg) LOG_INFO("trx #%llu: %s", (unsigned long long) _id, msg)
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// -----------------------------------------------------------------------------
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// --SECTION-- constructors and destructors
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// -----------------------------------------------------------------------------
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////////////////////////////////////////////////////////////////////////////////
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/// @brief create the transaction
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////////////////////////////////////////////////////////////////////////////////
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Transaction::Transaction (Manager* manager,
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TRI_voc_tid_t id,
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bool singleOperation,
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bool waitForSync)
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: State(),
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_manager(manager),
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_id(id),
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_singleOperation(singleOperation),
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_waitForSync(waitForSync),
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_startTime() {
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TRANSACTION_LOG("creating transaction");
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief destroy the transaction
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////////////////////////////////////////////////////////////////////////////////
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Transaction::~Transaction () {
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if (state() != State::StateType::COMMITTED &&
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state() != State::StateType::ABORTED) {
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this->rollback();
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}
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TRANSACTION_LOG("destroyed transaction");
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}
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// -----------------------------------------------------------------------------
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// --SECTION-- public methods
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// -----------------------------------------------------------------------------
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////////////////////////////////////////////////////////////////////////////////
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/// @brief begin a transaction
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////////////////////////////////////////////////////////////////////////////////
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int Transaction::begin () {
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if (state() != State::StateType::UNINITIALISED) {
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return TRI_ERROR_TRANSACTION_INTERNAL;
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}
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TRANSACTION_LOG("beginning transaction");
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int res = _manager->beginTransaction(this);
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if (res == TRI_ERROR_NO_ERROR) {
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_startTime = TRI_microtime();
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}
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return res;
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief commit a transaction
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////////////////////////////////////////////////////////////////////////////////
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int Transaction::commit (bool waitForSync) {
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if (state() != State::StateType::BEGUN) {
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return TRI_ERROR_TRANSACTION_INTERNAL;
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}
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TRANSACTION_LOG("committing transaction");
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return _manager->commitTransaction(this, waitForSync || _waitForSync);
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief rollback a transaction
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////////////////////////////////////////////////////////////////////////////////
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int Transaction::rollback () {
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if (state() != State::StateType::BEGUN) {
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return TRI_ERROR_TRANSACTION_INTERNAL;
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}
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TRANSACTION_LOG("rolling back transaction");
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return _manager->rollbackTransaction(this);
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}
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// Local Variables:
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// mode: outline-minor
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// outline-regexp: "/// @brief\\|/// {@inheritDoc}\\|/// @addtogroup\\|/// @page\\|// --SECTION--\\|/// @\\}"
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// End:
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