vcglib/apps/nexus/preload.h

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/****************************************************************************
* VCGLib o o *
* Visual and Computer Graphics Library o o *
* _ O _ *
* Copyright(C) 2004 \/)\/ *
* Visual Computing Lab /\/| *
* ISTI - Italian National Research Council | *
* \ *
* All rights reserved. *
* *
* 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; either version 2 of the License, or *
* (at your option) any later version. *
* *
* 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 (http://www.gnu.org/licenses/gpl.txt) *
* for more details. *
* *
****************************************************************************/
/****************************************************************************
History
$Log: not supported by cvs2svn $
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Revision 1.4 2005/02/08 12:43:03 ponchio
Added copyright
2005-02-08 13:43:03 +01:00
****************************************************************************/
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#ifndef NXS_PRELOAD_H
#define NXS_PRELOAD_H
#include <assert.h>
#include <vector>
#include <ptypes/pasync.h>
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#include "extraction.h"
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namespace nxs {
class NexusMt;
class Preload: public pt::thread{
public:
NexusMt *mt;
pt::mutex lock;
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pt::trigger trigger;
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std::vector<Item> queue;
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unsigned int disk; //kbytes readed from disk
unsigned int total_disk;
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Preload(): thread(false), trigger(false, false) {}
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~Preload() {
waitfor();
}
void execute();
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void post(std::vector<Item> &patches) {
trigger.reset();
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lock.enter();
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queue.reserve(patches.size());
for(int i = patches.size() -1; i >= 0; i--)
queue.push_back(patches[i]);
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trigger.post();
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lock.leave();
}
void cleanup() {}
};
}
#endif