monero/src/p2p/network_throttle.cpp

/**
@file
@author rfree (current maintainer in monero.cc project)
@brief interface for throttling of connection (count and rate-limit speed etc) 
@details <PRE>

Throttling work by:
1) taking note of all traffic (hooks added e.g. to connection class) and measuring speed
2) depending on that information we sleep before sending out data (or send smaller portions of data)
3) depending on the information we can also sleep before sending requests or ask for smaller sets of data to download

</PRE> 

@image html images/net/rate1-down-1k.png
@image html images/net/rate1-down-full.png
@image html images/net/rate1-up-10k.png
@image html images/net/rate1-up-full.png
@image html images/net/rate2-down-100k.png
@image html images/net/rate2-down-10k.png
@image html images/net/rate2-down-50k.png
@image html images/net/rate2-down-full.png
@image html images/net/rate2-up-100k.png
@image html images/net/rate2-up-10k.png
@image html images/net/rate3-up-10k.png


*/

// Copyright (c) 2014-2016, The Monero Project
// 
// All rights reserved.
// 
// Redistribution and use in source and binary forms, with or without modification, are
// permitted provided that the following conditions are met:
// 
// 1. Redistributions of source code must retain the above copyright notice, this list of
//    conditions and the following disclaimer.
// 
// 2. Redistributions in binary form must reproduce the above copyright notice, this list
//    of conditions and the following disclaimer in the documentation and/or other
//    materials provided with the distribution.
// 
// 3. Neither the name of the copyright holder nor the names of its contributors may be
//    used to endorse or promote products derived from this software without specific
//    prior written permission.
// 
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

#include "../../src/p2p/network_throttle-detail.hpp"

namespace epee
{
namespace net_utils
{

// ================================================================================================
// network_throttle_manager
// ================================================================================================

// ================================================================================================
// static:
boost::mutex network_throttle_manager::m_lock_get_global_throttle_in;
boost::mutex network_throttle_manager::m_lock_get_global_throttle_inreq;
boost::mutex network_throttle_manager::m_lock_get_global_throttle_out;

int network_throttle_manager::xxx;


// ================================================================================================
// methods:
i_network_throttle & network_throttle_manager::get_global_throttle_in() { 
	boost::call_once(m_once_get_global_throttle_in, [] { m_obj_get_global_throttle_in.reset(new network_throttle("in/all","<<< global-IN",10)); }	);
	return * m_obj_get_global_throttle_in;
}
boost::once_flag network_throttle_manager::m_once_get_global_throttle_in;
std::unique_ptr<i_network_throttle> network_throttle_manager::m_obj_get_global_throttle_in;



i_network_throttle & network_throttle_manager::get_global_throttle_inreq() { 
	boost::call_once(m_once_get_global_throttle_inreq, [] { m_obj_get_global_throttle_inreq.reset(new network_throttle("inreq/all", "<== global-IN-REQ",10)); }	);
	return * m_obj_get_global_throttle_inreq;
}
boost::once_flag network_throttle_manager::m_once_get_global_throttle_inreq;
std::unique_ptr<i_network_throttle> network_throttle_manager::m_obj_get_global_throttle_inreq;


i_network_throttle & network_throttle_manager::get_global_throttle_out() { 
	boost::call_once(m_once_get_global_throttle_out, [] { m_obj_get_global_throttle_out.reset(new network_throttle("out/all", ">>> global-OUT",10)); }	);
	return * m_obj_get_global_throttle_out;
}
boost::once_flag network_throttle_manager::m_once_get_global_throttle_out;
std::unique_ptr<i_network_throttle> network_throttle_manager::m_obj_get_global_throttle_out;




network_throttle_bw::network_throttle_bw(const std::string &name1) 
	: m_in("in/"+name1, name1+"-DOWNLOAD"), m_inreq("inreq/"+name1, name1+"-DOWNLOAD-REQUESTS"), m_out("out/"+name1, name1+"-UPLOAD")
{ }




} // namespace 
} // namespace