/// @file
/// @author rfree (current maintainer in monero.cc project)
/// @brief base for connection, contains e.g. the ratelimit hooks
// Copyright (c) 2014, The Monero Project
//
// All rights reserved.
//
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// 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,
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/* rfree: implementation for the non-template base, can be used by connection<> template class in abstract_tcp_server2 file */
#include "connection_basic.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 <memory>
#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 <boost/filesystem.hpp>
#include "misc_language.h"
#include "pragma_comp_defs.h"
#include <fstream>
#include <sstream>
#include <iomanip>
#include <algorithm>
#include <mutex>
#include <boost/asio/basic_socket.hpp>
#include <boost/asio/ip/unicast.hpp>
#include "../../contrib/epee/include/net/abstract_tcp_server2.h"
#include "../../contrib/otshell_utils/utils.hpp"
using namespace nOT::nUtils;
// TODO:
#include "../../src/p2p/network_throttle-detail.hpp"
#include "../../src/cryptonote_core/cryptonote_core.h"
// ################################################################################################
// local (TU local) headers
// ################################################################################################
namespace epee
{
namespace net_utils
{
/* ============================================================================ */
class connection_basic_pimpl {
public:
connection_basic_pimpl(const std::string &name);
static int m_default_tos;
network_throttle_bw m_throttle; // per-perr
critical_section m_throttle_lock;
int m_peer_number; // e.g. for debug/stats
};
} // namespace
} // namespace
// ################################################################################################
// The implementation part
// ################################################################################################
namespace epee
{
namespace net_utils
{
// ================================================================================================
// connection_basic_pimpl
// ================================================================================================
connection_basic_pimpl::connection_basic_pimpl(const std::string &name) : m_throttle(name) { }
// ================================================================================================
// connection_basic
// ================================================================================================
// static variables:
int connection_basic_pimpl::m_default_tos;
// methods:
connection_basic::connection_basic(boost::asio::io_service& io_service, std::atomic<long> &ref_sock_count, std::atomic<long> &sock_number)
:
mI( new connection_basic_pimpl("peer") ),
strand_(io_service),
socket_(io_service),
m_want_close_connection(false),
m_was_shutdown(false),
m_ref_sock_count(ref_sock_count)
{
++ref_sock_count; // increase the global counter
mI->m_peer_number = sock_number.fetch_add(1); // use, and increase the generated number
_note("Spawned connection p2p#"<<mI->m_peer_number<<" currently we have sockets count:" << m_ref_sock_count);
boost::filesystem::create_directories("log/dr-monero/net/");
/*boost::asio::SettableSocketOption option;// = new boost::asio::SettableSocketOption();
option.level(IPPROTO_IP);
option.name(IP_TOS);
option.value(&tos);
option.size = sizeof(tos);
socket_.set_option(option);*/
// TODO socket options
}
connection_basic::~connection_basic() {
_note("Destructing connection p2p#"<<mI->m_peer_number);
}
void connection_basic::set_rate_up_limit(uint64_t limit) {
save_limit_to_file(limit);
{
// TODO remove __SCALING_FACTOR...
const double SCALING_FACTOR = 2.25; // to acheve the best performance
limit *= SCALING_FACTOR;
CRITICAL_REGION_LOCAL( network_throttle_manager::m_lock_get_global_throttle_out );
network_throttle_manager::get_global_throttle_out().set_target_speed(limit);
}
// connection_basic_pimpl::m_throttle_global.m_out.set_target_speed(limit);
}
void connection_basic::set_rate_down_limit(uint64_t limit) {
{
CRITICAL_REGION_LOCAL( network_throttle_manager::m_lock_get_global_throttle_in );
network_throttle_manager::get_global_throttle_in().set_target_speed(limit);
}
{
CRITICAL_REGION_LOCAL( network_throttle_manager::m_lock_get_global_throttle_inreq );
network_throttle_manager::get_global_throttle_inreq().set_target_speed(limit);
}
save_limit_to_file(limit);
}
void connection_basic::set_rate_limit(uint64_t limit) {
// TODO
}
void connection_basic::set_kill_limit (uint64_t limit) {
{
CRITICAL_REGION_LOCAL( network_throttle_manager::m_lock_get_global_throttle_in );
network_throttle_manager::get_global_throttle_in().set_target_kill(limit);
}
{
CRITICAL_REGION_LOCAL( network_throttle_manager::m_lock_get_global_throttle_out );
network_throttle_manager::get_global_throttle_out().set_target_kill(limit);
}
{
CRITICAL_REGION_LOCAL( network_throttle_manager::m_lock_get_global_throttle_inreq );
network_throttle_manager::get_global_throttle_inreq().set_target_kill(limit);
}
}
void connection_basic::save_limit_to_file(int limit) {
// saving limit to file
std::ofstream file;
file.open("log/dr-monero/limit.info");
file << limit;
}
void connection_basic::set_rate_autodetect(uint64_t limit) {
// TODO
LOG_PRINT_L0("inside connection_basic we set autodetect (this is additional notification)..");
}
void connection_basic::set_tos_flag(int tos) {
connection_basic_pimpl::m_default_tos = tos;
}
int connection_basic::get_tos_flag() {
return connection_basic_pimpl::m_default_tos;
}
void connection_basic::sleep_before_packet(size_t packet_size, int phase, int q_len) {
double delay=0; // will be calculated
do
{ // rate limiting
//XXX
/*if (::cryptonote::core::get_is_stopping()) {
_dbg1("We are stopping - so abort sleep");
return;
}*/
if (m_was_shutdown) {
_dbg2("m_was_shutdown - so abort sleep");
return;
}
{
CRITICAL_REGION_LOCAL( network_throttle_manager::m_lock_get_global_throttle_out );
delay = network_throttle_manager::get_global_throttle_out().get_sleep_time_after_tick( packet_size ); // decission from global
}
delay *= 0.50;
delay = 0; // XXX
if (delay > 0) {
//delay += rand2*0.1;
long int ms = (long int)(delay * 1000);
_info_c("net/sleep", "Sleeping in " << __FUNCTION__ << " for " << ms << " ms before packet_size="<<packet_size); // XXX debug sleep
_dbg1("sleep in sleep_before_packet");
boost::this_thread::sleep(boost::posix_time::milliseconds( ms ) ); // TODO randomize sleeps
}
} while(delay > 0);
// XXX LATER XXX
{
CRITICAL_REGION_LOCAL( network_throttle_manager::m_lock_get_global_throttle_out );
network_throttle_manager::get_global_throttle_out().handle_trafic_tcp( packet_size ); // increase counter - global
//epee::critical_region_t<decltype(m_throttle_global_lock)> guard(m_throttle_global_lock); // *** critical ***
//m_throttle_global.m_out.handle_trafic_tcp( packet_size ); // increase counter - global
}
}
void connection_basic::set_start_time() {
CRITICAL_REGION_LOCAL( network_throttle_manager::m_lock_get_global_throttle_out );
m_start_time = network_throttle_manager::get_global_throttle_out().get_time_seconds();
}
void connection_basic::do_send_handler_start(const void* ptr , size_t cb ) {
_fact_c("net/out/size", "*** do_sen() called for packet="<<cb<<" B");
sleep_before_packet(cb,1,-1);
// set_start_time();
}
void connection_basic::do_send_handler_delayed(const void* ptr , size_t cb ) {
// CRITICAL_REGION_LOCAL(network_throttle_manager::m_lock_get_global_throttle_out);
// auto sending_time = network_throttle_manager::get_global_throttle_out().get_time_seconds() - m_start_time; // wrong? --r
}
void connection_basic::do_send_handler_write(const void* ptr , size_t cb ) {
sleep_before_packet(cb,1,-1);
_info_c("net/out/size", "handler_write (direct) - before ASIO write, for packet="<<cb<<" B (after sleep)");
set_start_time();
}
void connection_basic::do_send_handler_stop(const void* ptr , size_t cb ) {
}
void connection_basic::do_send_handler_after_write(const boost::system::error_code& e, size_t cb) {
// CRITICAL_REGION_LOCAL(network_throttle_manager::m_lock_get_global_throttle_out);
// auto sending_time = network_throttle_manager::get_global_throttle_out().get_time_seconds() - m_start_time;
// lag: if current sending time > max sending time
//if (sending_time > 0.1) network_throttle_manager::get_global_throttle_out().set_overheat(sending_time); // TODO
}
void connection_basic::do_send_handler_write_from_queue( const boost::system::error_code& e, size_t cb, int q_len ) {
sleep_before_packet(cb,2,q_len);
_info_c("net/out/size", "handler_write (after write, from queue="<<q_len<<") - before ASIO write, for packet="<<cb<<" B (after sleep)");
set_start_time();
}
void connection_basic::do_read_handler_start(const boost::system::error_code& e, std::size_t bytes_transferred) { // from read, after read completion
const size_t packet_size = bytes_transferred;
{
CRITICAL_REGION_LOCAL( network_throttle_manager::m_lock_get_global_throttle_in );
// sleep_before_packet(packet_size * __SCALING_FACTOR, 1, -1); // TODO remove __SCALING_FACTOR
network_throttle_manager::get_global_throttle_in().handle_trafic_tcp( packet_size ); // increase counter - global
// epee::critical_region_t<decltype(mI->m_throttle_global_lock)> guard(mI->m_throttle_global_lock); // *** critical ***
// mI->m_throttle_global.m_in.handle_trafic_tcp( packet_size ); // increase counter - global
}
}
void connection_basic::logger_handle_net_peer(size_t size, bool io) { // network data written
// TODO OPTIMIZE! do NOT reopen idiotically :)
std::ostringstream oss;
std::string filename;
if (io) { // write
double time = network_throttle_manager::get_global_throttle_in().get_time_seconds() ;
oss << "log/dr-monero/net/in-peer-" << (mI->m_peer_number) << ".dat" << std::ends;
filename = oss.str();
network_throttle_manager::get_global_throttle_out().logger_handle_net(filename,time,size);
}
else { // read
double time = network_throttle_manager::get_global_throttle_out().get_time_seconds() ;
oss << "log/dr-monero/net/out-peer-" << (mI->m_peer_number) << ".dat" << std::ends;
filename = oss.str();
network_throttle_manager::get_global_throttle_in().logger_handle_net(filename,time,size);
}
}
void connection_basic::logger_handle_net_read(size_t size) { // network data read
std::string filename = "log/dr-monero/net/in-all.data";
double time = network_throttle_manager::get_global_throttle_in().get_time_seconds() ;
network_throttle_manager::get_global_throttle_in().logger_handle_net(filename, time, size);
logger_handle_net_peer(size,0);
}
void connection_basic::logger_handle_net_write(size_t size) {
std::string filename = "log/dr-monero/net/out-all.data";
double time = network_throttle_manager::get_global_throttle_out().get_time_seconds() ;
network_throttle_manager::get_global_throttle_out().logger_handle_net(filename, time, size);
logger_handle_net_peer(size,1);
}
double connection_basic::get_sleep_time(size_t cb) {
auto t = network_throttle_manager::get_global_throttle_out().get_sleep_time(cb);
return t;
}
} // namespace
} // namespace
