/* -*- mode: java; c-basic-offset: 4; indent-tabs-mode: nil; -*-
 *  vim:expandtab:shiftwidth=4:tabstop=4:smarttab:
 *
 *  Copyright (c) 2010, 2011, Oracle and/or its affiliates. All rights reserved.
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 *  as published by the Free Software Foundation.
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 *  documentation.  The authors of MySQL hereby grant you an additional
 *  permission to link the program and your derivative works with the
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 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 */

#ifndef Driver_hpp
#define Driver_hpp

#include <iostream>
#include <sstream>
#include <fstream>
#include <string>
#include <vector>

#include "Properties.hpp"
#include "hrt_utils.h"

using std::ofstream;
using std::ostringstream;
using std::string;
using std::vector;

using utils::Properties;

class Driver {
public:

    /**
     * Parses the benchmark's command-line arguments.
     */
    static void parseArguments(int argc, const char* argv[]);

    /**
     * Creates an instance.
     */
    Driver() {}

    /**
     * Deletes an instance.
     */
    virtual ~Driver() {}

    /**
     * Runs the benchmark.
     */
    void run();

protected:

    // command-line arguments
    static vector< string > propFileNames;
    static string logFileName;

    static void exitUsage();

    // driver settings
    Properties props;
    bool logRealTime;
    bool logCpuTime;
    int nRuns;

    // driver resources
    ofstream log;
    string descr;
    bool logHeader;
    ostringstream header;
    ostringstream rtimes;
    ostringstream ctimes;
    int s0, s1;
    hrt_tstamp t0, t1;
    long rta, cta;

    // driver intializers/finalizers
    virtual void init();
    virtual void close();
    virtual void loadProperties();
    virtual void initProperties();
    virtual void printProperties();
    virtual void openLogFile();
    virtual void closeLogFile();

    // benchmark operations
    virtual void runTests() = 0;
    virtual void begin(const string& name);
    virtual void commit(const string& name);
};

#endif // Driver_hpp
