/* -*-	Mode:C++; c-basic-offset:8; tab-width:8; indent-tabs-mode:t -*- */

/*

 * Copyright (c) 2006 INRIA

 * 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 version 2 as

 * published by the Free Software Foundation;

 *

 * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

 *

 * Author: Mathieu Lacage <mathieu.lacage@sophia.inria.fr>

 */

#include "ns3/simulator.h"

#include "ns3/wall-clock-ms.h"

#include <iostream>

#include <fstream>

#include <vector>

using namespace ns3;

bool g_debug = false;

class Bench {

public:

	void read_distribution (std::istream &istream);

	void set_total (uint32_t total);

	void bench (void);

private:

	void cb (void);

	std::vector<uint64_t> m_distribution;

	std::vector<uint64_t>::const_iterator m_current;

	uint32_t m_n;

	uint32_t m_total;

};

void 

Bench::set_total (uint32_t total)

{

	m_total = total;

}

void

Bench::read_distribution (std::istream &input)

{

	double data;

	while (!input.eof ()) {

		if (input >> data) {

			uint64_t us = (uint64_t) (data * 1000000);

			m_distribution.push_back (us);

		} else {

			input.clear ();

			std::string line;

			input >> line;

		}

	}

}

void

Bench::bench (void) 

{

	WallClockMs time;

	double init, simu;

	time.start ();

	for (std::vector<uint64_t>::const_iterator i = m_distribution.begin ();

	     i != m_distribution.end (); i++) {

	}

	init = time.end ();

	m_current = m_distribution.begin ();

	time.start ();

	Simulator::run ();

	simu = time.end ();

	std::cout <<

		"init n=" << m_distribution.size () << ", time=" << init << "s" << std::endl <<

		"simu n=" << m_n << ", time=" <<simu << "s" << std::endl <<

		"init " << ((double)m_distribution.size ()) / init << " insert/s, avg insert=" <<

		init / ((double)m_distribution.size ())<< "s" << std::endl <<

		"simu " << ((double)m_n) / simu<< " hold/s, avg hold=" << 

		simu / ((double)m_n) << "s" << std::endl

		;

}

void

Bench::cb (void)

{

	if (m_n > m_total) {

		return;

	}

	if (m_current == m_distribution.end ()) {

		m_current = m_distribution.begin ();

	}

	if (g_debug) {

	}

	m_current++;

	m_n++;

}

int main (int argc, char *argv[])

{

	char const *filename = argv[1];

	std::istream *input;

	argc-=2;

	argv+= 2;

	if (strcmp (filename, "-") == 0) {

		input = &std::cin;

	} else {

		input = new std::ifstream (filename);

	}

	while (argc > 0) {

		if (strcmp ("--list", argv[0]) == 0) {

			Simulator::set_linked_list ();

		} else if (strcmp ("--heap", argv[0]) == 0) {

			Simulator::set_binary_heap ();

		} else if (strcmp ("--map", argv[0]) == 0) {

			Simulator::set_std_map ();

		} else if (strcmp ("--debug", argv[0]) == 0) {

			g_debug = true;

		} else if (strncmp ("--log=", argv[0],strlen ("--log=")) == 0) {

			char const *filename = argv[0] + strlen ("--log=");

			Simulator::enable_log_to (filename);

		}

		argc--;

		argv++;

	}

	Bench *bench = new Bench ();

	bench->read_distribution (*input);

	bench->set_total (20000);

	bench->bench ();

	return 0;

}