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PharmerServer.h
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PharmerServer.h
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/*
Pharmer: Efficient and Exact 3D Pharmacophore Search
Copyright (C) 2011 David Ryan Koes and the University of Pittsburgh
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 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.
*/
/*
* PharmerServer.h
*
* Created on: Sep 10, 2010
* Author: dkoes
*/
#ifndef PHARMERSERVER_H_
#define PHARMERSERVER_H_
#include <vector>
#include <string>
#include <boost/unordered_map.hpp>
#include "SpinLock.h"
#include "PharmerQuery.h"
using namespace std;
#define SERVERTHREADS 16
void pharmer_server(unsigned port,
vector<vector<MolWeightDatabase> >& databases, const string& logdir,
unsigned totalConfs, unsigned totalMols, const string& minServer,
unsigned minPort);
//wrapper for webquery that automatically takes care of usecnt
class WebQueryHandle
{
PharmerQuery *ptr;
public:
WebQueryHandle(): ptr(NULL) {}
WebQueryHandle(PharmerQuery *q): ptr(q)
{
if(ptr) ptr->incrementUseCnt();
}
WebQueryHandle(const WebQueryHandle& rhs): ptr(rhs.ptr)
{
if(ptr) ptr->incrementUseCnt();
}
~WebQueryHandle()
{
if(ptr) ptr->decrementUseCnt();
}
PharmerQuery& operator*() { return *ptr; }
PharmerQuery* operator->() { return ptr; }
operator bool() { return ptr != NULL; }
};
//an instance of this classes manages a whole bunch of pharmer queries being
//served over the web (so have to deal with concurrency and timeout dellocation)
//each query is assigned a unique id for later reference
class WebQueryManager
{
unsigned nextID; //counter to generate unique IDs
typedef boost::unordered_map<unsigned, PharmerQuery*> QueryMap;
QueryMap queries;
vector<vector<MolWeightDatabase> > databases;
boost::mutex lock;
public:
WebQueryManager(vector<vector<MolWeightDatabase> >& dbs): nextID(1), databases(dbs)
{
}
//add a query
//first parse the text and return 0 if invalid
//if oldqid is set, then deallocate/reuse it
unsigned add(const Pharmas& pharma, Json::Value& data, const QueryParameters& qp, unsigned oldqid);
//return pointer to query qid (or null if not present)
//increments inUse on query, caller must decrement
WebQueryHandle get(unsigned qid);
unsigned purgeOldQueries();
void getCounts(unsigned& active, unsigned& inactive, unsigned& defunct);
unsigned processedQueries() const { return nextID-1; }
};
#endif /* PHARMERSERVER_H_ */