Jip J. Dekker
981be2067e
git-subtree-dir: software/gecode_on_replay git-subtree-split: 8051d92b9c89e49cccfbd1c201371580d7703ab4
97 lines
2.9 KiB
C++
97 lines
2.9 KiB
C++
/************************************************************ WorkManager.hh
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Copyright (c) 2010 Universite d'Orleans - Jeremie Vautard
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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*************************************************************************/
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#ifndef __QECODE_WORKMANAGER__
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#define __QECODE_WORKMANAGER__
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#include <time.h>
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#include <list>
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#include <queue>
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#include <vector>
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#include "Strategy.hh"
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#include "qecode.hh"
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#include "AbstractWorker.hh"
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#include "Work.hh"
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#include "QCOPPlus.hh"
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#include "gecode/minimodel.hh"
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#include "gecode/support.hh"
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#include "gecode/search.hh"
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#include "gecode/search/support.hh"
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using namespace Gecode;
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using namespace std;
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using namespace Gecode::Support;
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using namespace Gecode::Search;
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class QECODE_VTABLE_EXPORT WorkComparator {
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public :
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virtual bool cmp(QWork a,QWork b)=0;
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};
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class QECODE_VTABLE_EXPORT WorkPool {
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private:
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list<QWork> l;
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WorkComparator* cmp;
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public:
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QECODE_EXPORT WorkPool(WorkComparator* a);
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QECODE_EXPORT void push(QWork q);
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QECODE_EXPORT QWork pop();
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QECODE_EXPORT bool empty() {return l.empty();}
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QECODE_EXPORT QWork top() {return l.front();}
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QECODE_EXPORT int size() {return l.size();}
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QECODE_EXPORT void trash(vector<int> prefix);
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};
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class QECODE_VTABLE_EXPORT WorkManager {
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private:
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bool finished;
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Strategy S;
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WorkPool Todos;
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list<AQWorker*> actives;
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list<AQWorker*> idles;
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void getNewWorks();
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void updateTrue(Strategy s);
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void updateFalse(Strategy s);
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void trashWorks(vector<int> prefix);
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Strategy result;
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Gecode::Support::Mutex mex; // = PTHREAD_MUTEX_INITIALIZER;
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public:
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Qcop* problem;
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QECODE_EXPORT WorkManager(Qcop* p,WorkComparator* c);
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QECODE_EXPORT QWork getWork(AQWorker* worker);
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QECODE_EXPORT void returnWork(AQWorker* worker,Strategy ret,list<QWork> todo,vector<int> position);
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QECODE_EXPORT forceinline Strategy getResult() {return S;}
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QECODE_EXPORT forceinline bool isFinished() {mex.acquire();bool ret=finished;mex.release();return ret;}
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QECODE_EXPORT void printStatus();
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};
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#endif
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