CheckpointThread.h

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00001 /*
00002 // $Id: //open/dev/fennel/db/CheckpointThread.h#10 $
00003 // Fennel is a library of data storage and processing components.
00004 // Copyright (C) 2005-2009 The Eigenbase Project
00005 // Copyright (C) 2005-2009 SQLstream, Inc.
00006 // Copyright (C) 2005-2009 LucidEra, Inc.
00007 // Portions Copyright (C) 1999-2009 John V. Sichi
00008 //
00009 // This program is free software; you can redistribute it and/or modify it
00010 // under the terms of the GNU General Public License as published by the Free
00011 // Software Foundation; either version 2 of the License, or (at your option)
00012 // any later version approved by The Eigenbase Project.
00013 //
00014 // This program is distributed in the hope that it will be useful,
00015 // but WITHOUT ANY WARRANTY; without even the implied warranty of
00016 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00017 // GNU General Public License for more details.
00018 //
00019 // You should have received a copy of the GNU General Public License
00020 // along with this program; if not, write to the Free Software
00021 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
00022 */
00023 
00024 #ifndef Fennel_CheckpointThread_Included
00025 #define Fennel_CheckpointThread_Included
00026 
00027 #include "fennel/synch/Thread.h"
00028 #include "fennel/synch/SXMutex.h"
00029 #include "fennel/common/ClosableObject.h"
00030 #include "fennel/segment/CheckpointProvider.h"
00031 
00032 FENNEL_BEGIN_NAMESPACE
00033 
00038 class FENNEL_DB_EXPORT CheckpointThread
00039     : public Thread, public SynchMonitoredObject, public ClosableObject,
00040     public CheckpointProvider
00041 {
00042     Database &database;
00043     SXMutex actionMutex;
00044     CheckpointType checkpointType;
00045     bool quit;
00046 
00051     void closeImpl();
00052 
00053     // implement Thread
00054     virtual void run();
00055 
00056 public:
00064     explicit CheckpointThread(Database &database);
00065 
00074     SXMutex &getActionMutex();
00075 
00082     virtual void requestCheckpoint(CheckpointType checkpointType);
00083 };
00084 
00085 FENNEL_END_NAMESPACE
00086 
00087 #endif
00088 
00089 // End CheckpointThread.h

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