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mirror of https://github.com/mariadb-corporation/mariadb-columnstore-engine.git synced 2025-07-29 08:21:15 +03:00

the begginning

This commit is contained in:
david hill
2016-01-06 14:08:59 -06:00
parent 66a31debcb
commit f6afc42dd0
18251 changed files with 16460679 additions and 2 deletions

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/* Copyright (C) 2014 InfiniDB, Inc.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; version 2 of
the License.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
MA 02110-1301, USA. */
/******************************************************************************
* $Id: lbidresourcegraph.h 1823 2013-01-21 14:13:09Z rdempsey $
*
*****************************************************************************/
/** @file
* class XXX interface
*/
#ifndef LBIDRESOURCEGRAPH_H_
#define LBIDRESOURCEGRAPH_H_
#include <map>
#include <set>
#ifndef _MSC_VER
#include <tr1/unordered_set>
#else
#include <unordered_set>
#endif
#include <boost/thread.hpp>
#include "brmtypes.h"
#include "transactionnode.h"
#include "resourcenode.h"
#if defined(_MSC_VER) && defined(xxxLBIDRESOURCEGRAPH_DLLEXPORT)
#define EXPORT __declspec(dllexport)
#else
#define EXPORT
#endif
namespace BRM
{
class LBIDResourceGraph
{
public:
typedef std::tr1::unordered_set<ResourceNode *, RNHasher, RNEquals> RNodes_t;
EXPORT LBIDResourceGraph();
EXPORT ~LBIDResourceGraph();
EXPORT int reserveRange(LBID_t start, LBID_t end, VER_t txn, boost::mutex &mutex);
/// releases all resources held by txn
EXPORT void releaseResources(VER_t txn);
/// releases one resource
EXPORT void releaseResource(LBID_t start);
private:
uint64_t color;
LBIDResourceGraph(const LBIDResourceGraph &);
LBIDResourceGraph & operator=(const LBIDResourceGraph &);
void connectResources(LBID_t start, LBID_t end, TransactionNode *txnNode);
bool checkDeadlock(TransactionNode &);
bool DFSStep(RGNode *, uint64_t, uint64_t) const;
std::map<VER_t, TransactionNode *> txns;
RNodes_t resources;
};
}
#undef EXPORT
#endif