wownero/src/p2p/network_throttle.hpp
rfree2monero 5ce4256e3d 2014 network limit 1.1 +utils +toc -doc -drmonero
Update of the PR with network limits

works very well for all speeds
(but remember that low download speed can stop upload
because we then slow down downloading of blockchain
requests too)

more debug options

fixed pedantic warnings in our code
should work again on Mac OS X and FreeBSD
fixed warning about size_t
tested on Debian, Ubuntu, Windows(testing now)

TCP options and ToS (QoS) flag
FIXED peer number limit
FIXED some spikes in ingress/download
FIXED problems when other up and down limit
2015-02-20 22:13:00 +01:00

186 lines
7.2 KiB
C++

/// @file
/// @author rfree (current maintainer in monero.cc project)
/// @brief interface for throttling of connection (count and rate-limit speed etc)
// Copyright (c) 2014, 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.
//
/* rfree: throttle basic interface */
/* rfree: also includes the manager for singeton/global such objects */
#ifndef INCLUDED_p2p_network_throttle_hpp
#define INCLUDED_p2p_network_throttle_hpp
#include <boost/asio.hpp>
#include <string>
#include <vector>
#include <boost/noncopyable.hpp>
#include <boost/shared_ptr.hpp>
#include <atomic>
#include <boost/asio.hpp>
#include <boost/array.hpp>
#include <boost/noncopyable.hpp>
#include <boost/shared_ptr.hpp>
#include <boost/enable_shared_from_this.hpp>
#include <boost/interprocess/detail/atomic.hpp>
#include <boost/thread/thread.hpp>
#include "syncobj.h"
#include "../../contrib/epee/include/net/net_utils_base.h"
#include "../../contrib/epee/include/misc_log_ex.h"
#include <boost/lambda/bind.hpp>
#include <boost/foreach.hpp>
#include <boost/lambda/lambda.hpp>
#include <boost/uuid/random_generator.hpp>
#include <boost/chrono.hpp>
#include <boost/utility/value_init.hpp>
#include <boost/asio/deadline_timer.hpp>
#include <boost/date_time/posix_time/posix_time.hpp>
#include <boost/thread/thread.hpp>
#include "misc_language.h"
#include "pragma_comp_defs.h"
#include <sstream>
#include <iomanip>
#include <algorithm>
#include <memory>
#include <mutex>
#include <fstream>
namespace epee
{
namespace net_utils
{
// just typedefs to in code define the units used. TODO later it will be enforced that casts to other numericals are only explicit to avoid mistakes? use boost::chrono?
typedef double network_speed_kbps;
typedef double network_time_seconds;
typedef double network_MB;
class i_network_throttle;
/***
@brief All information about given throttle - speed calculations
*/
struct calculate_times_struct {
double average;
double window;
double delay;
double recomendetDataSize;
};
typedef calculate_times_struct calculate_times_struct;
namespace cryptonote { class cryptonote_protocol_handler_base; } // a friend class // TODO friend not working
/***
@brief Access to simple throttles, with singlton to access global network limits
*/
class network_throttle_manager {
// provides global (singleton) in/inreq/out throttle access
// [[note1]] see also http://www.nuonsoft.com/blog/2012/10/21/implementing-a-thread-safe-singleton-with-c11/
// [[note2]] _inreq is the requested in traffic - we anticipate we will get in-bound traffic soon as result of what we do (e.g. that we sent network downloads requests)
//protected:
public: // XXX
// [[note1]]
static std::once_flag m_once_get_global_throttle_in;
static std::once_flag m_once_get_global_throttle_inreq; // [[note2]]
static std::once_flag m_once_get_global_throttle_out;
static std::unique_ptr<i_network_throttle> m_obj_get_global_throttle_in;
static std::unique_ptr<i_network_throttle> m_obj_get_global_throttle_inreq;
static std::unique_ptr<i_network_throttle> m_obj_get_global_throttle_out;
static std::mutex m_lock_get_global_throttle_in;
static std::mutex m_lock_get_global_throttle_inreq;
static std::mutex m_lock_get_global_throttle_out;
friend class cryptonote::cryptonote_protocol_handler_base; // FRIEND - to directly access global throttle-s. !! REMEMBER TO USE LOCKS!
friend class connection_basic; // FRIEND - to directly access global throttle-s. !! REMEMBER TO USE LOCKS!
friend class connection_basic_pimpl; // ditto
static int xxx;
public:
static i_network_throttle & get_global_throttle_in(); ///< singleton ; for friend class ; caller MUST use proper locks! like m_lock_get_global_throttle_in
static i_network_throttle & get_global_throttle_inreq(); ///< ditto ; use lock ... use m_lock_get_global_throttle_inreq obviously
static i_network_throttle & get_global_throttle_out(); ///< ditto ; use lock ... use m_lock_get_global_throttle_out obviously
};
/***
@brief interface for the throttle, see the derivated class
*/
class i_network_throttle {
public:
virtual void set_name(const std::string &name)=0;
virtual void set_target_speed( network_speed_kbps target )=0;
virtual void set_real_target_speed(network_speed_kbps real_target)=0;
virtual network_speed_kbps get_terget_speed()=0;
virtual void handle_trafic_exact(size_t packet_size) =0; // count the new traffic/packet; the size is exact considering all network costs
virtual void handle_trafic_tcp(size_t packet_size) =0; // count the new traffic/packet; the size is as TCP, we will consider MTU etc
virtual void tick() =0; // poke and update timers/history
// time calculations:
virtual void calculate_times(size_t packet_size, calculate_times_struct &cts, bool dbg, double force_window) const =0; // assuming sending new package (or 0), calculate:
// Average, Window, Delay, Recommended data size ; also gets dbg=debug flag, and forced widnow size if >0 or -1 for not forcing window size
// Average speed, Window size, recommended Delay to sleep now, Recommended size of data to send now
virtual network_time_seconds get_sleep_time(size_t packet_size) const =0; // gets the D (recommended Delay time) from calc
virtual network_time_seconds get_sleep_time_after_tick(size_t packet_size) =0; // ditto, but first tick the timer
virtual size_t get_recommended_size_of_planned_transport() const =0; // what should be the recommended limit of data size that we can transport over current network_throttle in near future
virtual double get_time_seconds() const =0; // a timer
virtual void logger_handle_net(const std::string &filename, double time, size_t size)=0;
};
// ... more in the -advanced.h file
} // namespace net_utils
} // namespace epee
#endif