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https://github.com/mariadb-corporation/mariadb-columnstore-engine.git
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100 lines
2.5 KiB
C++
100 lines
2.5 KiB
C++
/* Copyright (C) 2014 InfiniDB, Inc.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; version 2 of
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the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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MA 02110-1301, USA. */
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// $Id: autoincrementdata.h 525 2010-01-19 23:18:05Z xlou $
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//
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/** @file */
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#include <cassert>
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#include <limits>
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using namespace std;
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#include <boost/thread/mutex.hpp>
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#include <boost/scoped_ptr.hpp>
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#include <boost/scoped_array.hpp>
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using namespace boost;
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#include "autoincrementdata.h"
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/*static*/
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boost::mutex AutoincrementData::map_mutex;
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/*static*/
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AutoincrementData::AutoincDataMap AutoincrementData::fAutoincDataMap;
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/* static */
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AutoincrementData* AutoincrementData::makeAutoincrementData(uint32_t sessionID)
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{
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boost::mutex::scoped_lock lock(map_mutex);
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AutoincrementData* instance;
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AutoincDataMap::const_iterator it = fAutoincDataMap.find(sessionID);
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if (it == fAutoincDataMap.end())
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{
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instance = new AutoincrementData();
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fAutoincDataMap[sessionID] = instance;
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return instance;
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}
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return it->second;
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}
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/* static */
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void AutoincrementData::removeAutoincrementData(uint32_t sessionID)
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{
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boost::mutex::scoped_lock lock(map_mutex);
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AutoincDataMap::iterator it = fAutoincDataMap.find(sessionID);
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if (it != fAutoincDataMap.end())
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{
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delete (*it).second;
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fAutoincDataMap.erase(it);
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}
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}
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AutoincrementData::AutoincrementData()
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{
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}
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AutoincrementData::~AutoincrementData()
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{
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}
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void AutoincrementData::setNextValue(uint32_t columnOid, long long nextValue)
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{
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boost::mutex::scoped_lock lk(fOIDnextvalLock);
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fOidNextValueMap[columnOid] = nextValue;
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}
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long long AutoincrementData::getNextValue(uint32_t columnOid)
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{
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boost::mutex::scoped_lock lk(fOIDnextvalLock);
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long long nextValue = 0;
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OIDNextValue::iterator it = fOidNextValueMap.find(columnOid);
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if (it != fOidNextValueMap.end())
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{
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nextValue = it->second;
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}
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return nextValue;
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}
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AutoincrementData::OIDNextValue& AutoincrementData::getOidNextValueMap()
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{
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boost::mutex::scoped_lock lk(fOIDnextvalLock);
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return fOidNextValueMap;
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}
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