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e4646379keccak: fix mdlen bounds sanity checking (moneromooo-monero)2e3e90acpass large parameters by const ref, not value (moneromooo-monero)61defd89blockchain: sanity check number of precomputed hash of hash blocks (moneromooo-monero)9af6b2d1ringct: fix infinite loop in unused h2b function (moneromooo-monero)8cea8d0csimplewallet: double check a new multisig wallet is multisig (moneromooo-monero)9b98a6acthreadpool: catch exceptions in dtor, to avoid terminate (moneromooo-monero)24803ed9blockchain_export: fix buffer overflow in exporter (moneromooo-monero)f3f7da62perf_timer: rewrite to make it clear there is no division by zero (moneromooo-monero)c6ea3df0performance_tests: remove add_arg call stray extra param (moneromooo-monero)fa6b4566fuzz_tests: fix an uninitialized var in setup (moneromooo-monero)03887f11keccak: fix sanity check bounds test (moneromooo-monero)ad11db91blockchain_db: initialize m_open in base class ctor (moneromooo-monero)bece67f9miner: restore std::cout precision after modification (moneromooo-monero)1aabd14cdb_lmdb: check hard fork info drop succeeded (moneromooo-monero)
1149 lines
46 KiB
C++
1149 lines
46 KiB
C++
/**
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@file
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@author from CrypoNote (see copyright below; Andrey N. Sabelnikov)
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@monero rfree
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@brief the connection templated-class for one peer connection
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*/
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// Copyright (c) 2006-2013, Andrey N. Sabelnikov, www.sabelnikov.net
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are met:
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above copyright
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// notice, this list of conditions and the following disclaimer in the
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// documentation and/or other materials provided with the distribution.
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// * Neither the name of the Andrey N. Sabelnikov nor the
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// names of its contributors may be used to endorse or promote products
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// derived from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER BE LIABLE FOR ANY
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// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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// ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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//#include "net_utils_base.h"
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#include <boost/lambda/bind.hpp>
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#include <boost/foreach.hpp>
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#include <boost/lambda/lambda.hpp>
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#include <boost/uuid/random_generator.hpp>
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#include <boost/chrono.hpp>
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#include <boost/utility/value_init.hpp>
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#include <boost/asio/deadline_timer.hpp>
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#include <boost/date_time/posix_time/posix_time.hpp> // TODO
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#include <boost/thread/v2/thread.hpp> // TODO
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#include "misc_language.h"
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#include "pragma_comp_defs.h"
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#include <sstream>
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#include <iomanip>
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#include <algorithm>
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#include "../../../../src/cryptonote_core/cryptonote_core.h" // e.g. for the send_stop_signal()
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#undef MONERO_DEFAULT_LOG_CATEGORY
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#define MONERO_DEFAULT_LOG_CATEGORY "net"
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PRAGMA_WARNING_PUSH
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namespace epee
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{
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namespace net_utils
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{
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/************************************************************************/
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/* */
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/************************************************************************/
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PRAGMA_WARNING_DISABLE_VS(4355)
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template<class t_protocol_handler>
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connection<t_protocol_handler>::connection( boost::asio::io_service& io_service,
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typename t_protocol_handler::config_type& config,
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std::atomic<long> &ref_sock_count, // the ++/-- counter
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std::atomic<long> &sock_number, // the only increasing ++ number generator
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i_connection_filter* &pfilter
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,t_connection_type connection_type
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)
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:
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connection_basic(io_service, ref_sock_count, sock_number),
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m_protocol_handler(this, config, context),
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m_pfilter( pfilter ),
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m_connection_type( connection_type ),
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m_throttle_speed_in("speed_in", "throttle_speed_in"),
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m_throttle_speed_out("speed_out", "throttle_speed_out")
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{
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MDEBUG("test, connection constructor set m_connection_type="<<m_connection_type);
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}
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PRAGMA_WARNING_DISABLE_VS(4355)
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//---------------------------------------------------------------------------------
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template<class t_protocol_handler>
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connection<t_protocol_handler>::~connection() noexcept(false)
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{
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if(!m_was_shutdown)
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{
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_dbg3("[sock " << socket_.native_handle() << "] Socket destroyed without shutdown.");
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shutdown();
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}
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_dbg3("[sock " << socket_.native_handle() << "] Socket destroyed");
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}
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//---------------------------------------------------------------------------------
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template<class t_protocol_handler>
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boost::asio::ip::tcp::socket& connection<t_protocol_handler>::socket()
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{
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return socket_;
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}
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//---------------------------------------------------------------------------------
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template<class t_protocol_handler>
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boost::shared_ptr<connection<t_protocol_handler> > connection<t_protocol_handler>::safe_shared_from_this()
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{
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try
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{
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return connection<t_protocol_handler>::shared_from_this();
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}
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catch (const boost::bad_weak_ptr&)
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{
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// It happens when the connection is being deleted
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return boost::shared_ptr<connection<t_protocol_handler> >();
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}
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}
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//---------------------------------------------------------------------------------
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template<class t_protocol_handler>
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bool connection<t_protocol_handler>::start(bool is_income, bool is_multithreaded)
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{
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TRY_ENTRY();
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// Use safe_shared_from_this, because of this is public method and it can be called on the object being deleted
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auto self = safe_shared_from_this();
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if(!self)
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return false;
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m_is_multithreaded = is_multithreaded;
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boost::system::error_code ec;
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auto remote_ep = socket_.remote_endpoint(ec);
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CHECK_AND_NO_ASSERT_MES(!ec, false, "Failed to get remote endpoint: " << ec.message() << ':' << ec.value());
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CHECK_AND_NO_ASSERT_MES(remote_ep.address().is_v4(), false, "IPv6 not supported here");
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auto local_ep = socket_.local_endpoint(ec);
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CHECK_AND_NO_ASSERT_MES(!ec, false, "Failed to get local endpoint: " << ec.message() << ':' << ec.value());
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context = boost::value_initialized<t_connection_context>();
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const unsigned long ip_{boost::asio::detail::socket_ops::host_to_network_long(remote_ep.address().to_v4().to_ulong())};
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// create a random uuid
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boost::uuids::uuid random_uuid;
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// that stuff turns out to be included, even though it's from src... Taking advantage
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random_uuid = crypto::rand<boost::uuids::uuid>();
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context.set_details(random_uuid, epee::net_utils::ipv4_network_address(ip_, remote_ep.port()), is_income);
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_dbg3("[sock " << socket_.native_handle() << "] new connection from " << print_connection_context_short(context) <<
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" to " << local_ep.address().to_string() << ':' << local_ep.port() <<
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", total sockets objects " << m_ref_sock_count);
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if(m_pfilter && !m_pfilter->is_remote_host_allowed(context.m_remote_address))
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{
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_dbg2("[sock " << socket_.native_handle() << "] host denied " << context.m_remote_address.host_str() << ", shutdowning connection");
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close();
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return false;
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}
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m_protocol_handler.after_init_connection();
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socket_.async_read_some(boost::asio::buffer(buffer_),
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strand_.wrap(
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boost::bind(&connection<t_protocol_handler>::handle_read, self,
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boost::asio::placeholders::error,
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boost::asio::placeholders::bytes_transferred)));
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#if !defined(_WIN32) || !defined(__i686)
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// not supported before Windows7, too lazy for runtime check
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// Just exclude for 32bit windows builds
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//set ToS flag
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int tos = get_tos_flag();
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boost::asio::detail::socket_option::integer< IPPROTO_IP, IP_TOS >
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optionTos( tos );
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socket_.set_option( optionTos );
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//_dbg1("Set ToS flag to " << tos);
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#endif
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boost::asio::ip::tcp::no_delay noDelayOption(false);
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socket_.set_option(noDelayOption);
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return true;
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CATCH_ENTRY_L0("connection<t_protocol_handler>::start()", false);
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}
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//---------------------------------------------------------------------------------
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template<class t_protocol_handler>
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bool connection<t_protocol_handler>::request_callback()
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{
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TRY_ENTRY();
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_dbg2("[" << print_connection_context_short(context) << "] request_callback");
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// Use safe_shared_from_this, because of this is public method and it can be called on the object being deleted
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auto self = safe_shared_from_this();
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if(!self)
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return false;
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strand_.post(boost::bind(&connection<t_protocol_handler>::call_back_starter, self));
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CATCH_ENTRY_L0("connection<t_protocol_handler>::request_callback()", false);
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return true;
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}
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//---------------------------------------------------------------------------------
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template<class t_protocol_handler>
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boost::asio::io_service& connection<t_protocol_handler>::get_io_service()
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{
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return socket_.get_io_service();
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}
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//---------------------------------------------------------------------------------
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template<class t_protocol_handler>
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bool connection<t_protocol_handler>::add_ref()
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{
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TRY_ENTRY();
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// Use safe_shared_from_this, because of this is public method and it can be called on the object being deleted
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auto self = safe_shared_from_this();
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if(!self)
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return false;
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//_dbg3("[sock " << socket_.native_handle() << "] add_ref, m_peer_number=" << mI->m_peer_number);
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CRITICAL_REGION_LOCAL(self->m_self_refs_lock);
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//_dbg3("[sock " << socket_.native_handle() << "] add_ref 2, m_peer_number=" << mI->m_peer_number);
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if(m_was_shutdown)
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return false;
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m_self_refs.push_back(self);
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return true;
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CATCH_ENTRY_L0("connection<t_protocol_handler>::add_ref()", false);
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}
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//---------------------------------------------------------------------------------
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template<class t_protocol_handler>
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bool connection<t_protocol_handler>::release()
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{
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TRY_ENTRY();
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boost::shared_ptr<connection<t_protocol_handler> > back_connection_copy;
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LOG_TRACE_CC(context, "[sock " << socket_.native_handle() << "] release");
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CRITICAL_REGION_BEGIN(m_self_refs_lock);
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CHECK_AND_ASSERT_MES(m_self_refs.size(), false, "[sock " << socket_.native_handle() << "] m_self_refs empty at connection<t_protocol_handler>::release() call");
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//erasing from container without additional copy can cause start deleting object, including m_self_refs
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back_connection_copy = m_self_refs.back();
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m_self_refs.pop_back();
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CRITICAL_REGION_END();
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return true;
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CATCH_ENTRY_L0("connection<t_protocol_handler>::release()", false);
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}
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//---------------------------------------------------------------------------------
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template<class t_protocol_handler>
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void connection<t_protocol_handler>::call_back_starter()
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{
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TRY_ENTRY();
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_dbg2("[" << print_connection_context_short(context) << "] fired_callback");
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m_protocol_handler.handle_qued_callback();
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CATCH_ENTRY_L0("connection<t_protocol_handler>::call_back_starter()", void());
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}
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//---------------------------------------------------------------------------------
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template<class t_protocol_handler>
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void connection<t_protocol_handler>::save_dbg_log()
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{
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std::string address, port;
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boost::system::error_code e;
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boost::asio::ip::tcp::endpoint endpoint = socket_.remote_endpoint(e);
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if (e)
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{
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address = "<not connected>";
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port = "<not connected>";
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}
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else
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{
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address = endpoint.address().to_string();
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port = boost::lexical_cast<std::string>(endpoint.port());
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}
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MDEBUG(" connection type " << to_string( m_connection_type ) << " "
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<< socket_.local_endpoint().address().to_string() << ":" << socket_.local_endpoint().port()
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<< " <--> " << address << ":" << port);
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}
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//---------------------------------------------------------------------------------
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template<class t_protocol_handler>
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void connection<t_protocol_handler>::handle_read(const boost::system::error_code& e,
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std::size_t bytes_transferred)
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{
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TRY_ENTRY();
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//_info("[sock " << socket_.native_handle() << "] Async read calledback.");
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if (!e)
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{
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{
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CRITICAL_REGION_LOCAL(m_throttle_speed_in_mutex);
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m_throttle_speed_in.handle_trafic_exact(bytes_transferred);
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context.m_current_speed_down = m_throttle_speed_in.get_current_speed();
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}
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{
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CRITICAL_REGION_LOCAL( epee::net_utils::network_throttle_manager::network_throttle_manager::m_lock_get_global_throttle_in );
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epee::net_utils::network_throttle_manager::network_throttle_manager::get_global_throttle_in().handle_trafic_exact(bytes_transferred);
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}
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double delay=0; // will be calculated - how much we should sleep to obey speed limit etc
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if (speed_limit_is_enabled()) {
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do // keep sleeping if we should sleep
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{
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{ //_scope_dbg1("CRITICAL_REGION_LOCAL");
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CRITICAL_REGION_LOCAL( epee::net_utils::network_throttle_manager::m_lock_get_global_throttle_in );
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delay = epee::net_utils::network_throttle_manager::get_global_throttle_in().get_sleep_time_after_tick( bytes_transferred );
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}
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delay *= 0.5;
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if (delay > 0) {
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long int ms = (long int)(delay * 100);
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boost::this_thread::sleep_for(boost::chrono::milliseconds(ms));
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}
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} while(delay > 0);
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} // any form of sleeping
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//_info("[sock " << socket_.native_handle() << "] RECV " << bytes_transferred);
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logger_handle_net_read(bytes_transferred);
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context.m_last_recv = time(NULL);
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context.m_recv_cnt += bytes_transferred;
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bool recv_res = m_protocol_handler.handle_recv(buffer_.data(), bytes_transferred);
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if(!recv_res)
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{
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//_info("[sock " << socket_.native_handle() << "] protocol_want_close");
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//some error in protocol, protocol handler ask to close connection
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boost::interprocess::ipcdetail::atomic_write32(&m_want_close_connection, 1);
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bool do_shutdown = false;
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CRITICAL_REGION_BEGIN(m_send_que_lock);
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if(!m_send_que.size())
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do_shutdown = true;
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CRITICAL_REGION_END();
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if(do_shutdown)
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shutdown();
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}else
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{
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socket_.async_read_some(boost::asio::buffer(buffer_),
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strand_.wrap(
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boost::bind(&connection<t_protocol_handler>::handle_read, connection<t_protocol_handler>::shared_from_this(),
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boost::asio::placeholders::error,
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boost::asio::placeholders::bytes_transferred)));
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//_info("[sock " << socket_.native_handle() << "]Async read requested.");
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}
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}else
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{
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_dbg3("[sock " << socket_.native_handle() << "] Some not success at read: " << e.message() << ':' << e.value());
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if(e.value() != 2)
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{
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_dbg3("[sock " << socket_.native_handle() << "] Some problems at read: " << e.message() << ':' << e.value());
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shutdown();
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}
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}
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// If an error occurs then no new asynchronous operations are started. This
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// means that all shared_ptr references to the connection object will
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// disappear and the object will be destroyed automatically after this
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// handler returns. The connection class's destructor closes the socket.
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CATCH_ENTRY_L0("connection<t_protocol_handler>::handle_read", void());
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}
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//---------------------------------------------------------------------------------
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template<class t_protocol_handler>
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bool connection<t_protocol_handler>::call_run_once_service_io()
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{
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TRY_ENTRY();
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if(!m_is_multithreaded)
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{
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//single thread model, we can wait in blocked call
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size_t cnt = socket_.get_io_service().run_one();
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if(!cnt)//service is going to quit
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return false;
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}else
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{
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//multi thread model, we can't(!) wait in blocked call
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//so we make non blocking call and releasing CPU by calling sleep(0);
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//if no handlers were called
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//TODO: Maybe we need to have have critical section + event + callback to upper protocol to
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//ask it inside(!) critical region if we still able to go in event wait...
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size_t cnt = socket_.get_io_service().poll_one();
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if(!cnt)
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misc_utils::sleep_no_w(0);
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}
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return true;
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CATCH_ENTRY_L0("connection<t_protocol_handler>::call_run_once_service_io", false);
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}
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//---------------------------------------------------------------------------------
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template<class t_protocol_handler>
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bool connection<t_protocol_handler>::do_send(const void* ptr, size_t cb) {
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TRY_ENTRY();
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// Use safe_shared_from_this, because of this is public method and it can be called on the object being deleted
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auto self = safe_shared_from_this();
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if (!self) return false;
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if (m_was_shutdown) return false;
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// TODO avoid copy
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const double factor = 32; // TODO config
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typedef long long signed int t_safe; // my t_size to avoid any overunderflow in arithmetic
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const t_safe chunksize_good = (t_safe)( 1024 * std::max(1.0,factor) );
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const t_safe chunksize_max = chunksize_good * 2 ;
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const bool allow_split = (m_connection_type == e_connection_type_RPC) ? false : true; // do not split RPC data
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CHECK_AND_ASSERT_MES(! (chunksize_max<0), false, "Negative chunksize_max" ); // make sure it is unsigned before removin sign with cast:
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long long unsigned int chunksize_max_unsigned = static_cast<long long unsigned int>( chunksize_max ) ;
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if (allow_split && (cb > chunksize_max_unsigned)) {
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{ // LOCK: chunking
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epee::critical_region_t<decltype(m_chunking_lock)> send_guard(m_chunking_lock); // *** critical ***
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MDEBUG("do_send() will SPLIT into small chunks, from packet="<<cb<<" B for ptr="<<ptr);
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t_safe all = cb; // all bytes to send
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t_safe pos = 0; // current sending position
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// 01234567890
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// ^^^^ (pos=0, len=4) ; pos:=pos+len, pos=4
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// ^^^^ (pos=4, len=4) ; pos:=pos+len, pos=8
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// ^^^ (pos=8, len=4) ;
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// const size_t bufsize = chunksize_good; // TODO safecast
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// char* buf = new char[ bufsize ];
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bool all_ok = true;
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while (pos < all) {
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t_safe lenall = all-pos; // length from here to end
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t_safe len = std::min( chunksize_good , lenall); // take a smaller part
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CHECK_AND_ASSERT_MES(len<=chunksize_good, false, "len too large");
|
|
// pos=8; len=4; all=10; len=3;
|
|
|
|
CHECK_AND_ASSERT_MES(! (len<0), false, "negative len"); // check before we cast away sign:
|
|
unsigned long long int len_unsigned = static_cast<long long int>( len );
|
|
CHECK_AND_ASSERT_MES(len>0, false, "len not strictly positive"); // (redundant)
|
|
CHECK_AND_ASSERT_MES(len_unsigned < std::numeric_limits<size_t>::max(), false, "Invalid len_unsigned"); // yeap we want strong < then max size, to be sure
|
|
|
|
void *chunk_start = ((char*)ptr) + pos;
|
|
MDEBUG("chunk_start="<<chunk_start<<" ptr="<<ptr<<" pos="<<pos);
|
|
CHECK_AND_ASSERT_MES(chunk_start >= ptr, false, "Pointer wraparound"); // not wrapped around address?
|
|
//std::memcpy( (void*)buf, chunk_start, len);
|
|
|
|
MDEBUG("part of " << lenall << ": pos="<<pos << " len="<<len);
|
|
|
|
bool ok = do_send_chunk(chunk_start, len); // <====== ***
|
|
|
|
all_ok = all_ok && ok;
|
|
if (!all_ok) {
|
|
MDEBUG("do_send() DONE ***FAILED*** from packet="<<cb<<" B for ptr="<<ptr);
|
|
MDEBUG("do_send() SEND was aborted in middle of big package - this is mostly harmless "
|
|
<< " (e.g. peer closed connection) but if it causes trouble tell us at #monero-dev. " << cb);
|
|
return false; // partial failure in sending
|
|
}
|
|
pos = pos+len;
|
|
CHECK_AND_ASSERT_MES(pos >0, false, "pos <= 0");
|
|
|
|
// (in catch block, or uniq pointer) delete buf;
|
|
} // each chunk
|
|
|
|
MDEBUG("do_send() DONE SPLIT from packet="<<cb<<" B for ptr="<<ptr);
|
|
|
|
MDEBUG("do_send() m_connection_type = " << m_connection_type);
|
|
|
|
return all_ok; // done - e.g. queued - all the chunks of current do_send call
|
|
} // LOCK: chunking
|
|
} // a big block (to be chunked) - all chunks
|
|
else { // small block
|
|
return do_send_chunk(ptr,cb); // just send as 1 big chunk
|
|
}
|
|
|
|
CATCH_ENTRY_L0("connection<t_protocol_handler>::do_send", false);
|
|
} // do_send()
|
|
|
|
//---------------------------------------------------------------------------------
|
|
template<class t_protocol_handler>
|
|
bool connection<t_protocol_handler>::do_send_chunk(const void* ptr, size_t cb)
|
|
{
|
|
TRY_ENTRY();
|
|
// Use safe_shared_from_this, because of this is public method and it can be called on the object being deleted
|
|
auto self = safe_shared_from_this();
|
|
if(!self)
|
|
return false;
|
|
if(m_was_shutdown)
|
|
return false;
|
|
{
|
|
CRITICAL_REGION_LOCAL(m_throttle_speed_out_mutex);
|
|
m_throttle_speed_out.handle_trafic_exact(cb);
|
|
context.m_current_speed_up = m_throttle_speed_out.get_current_speed();
|
|
}
|
|
|
|
//_info("[sock " << socket_.native_handle() << "] SEND " << cb);
|
|
context.m_last_send = time(NULL);
|
|
context.m_send_cnt += cb;
|
|
//some data should be wrote to stream
|
|
//request complete
|
|
|
|
// No sleeping here; sleeping is done once and for all in "handle_write"
|
|
|
|
m_send_que_lock.lock(); // *** critical ***
|
|
epee::misc_utils::auto_scope_leave_caller scope_exit_handler = epee::misc_utils::create_scope_leave_handler([&](){m_send_que_lock.unlock();});
|
|
|
|
long int retry=0;
|
|
const long int retry_limit = 5*4;
|
|
while (m_send_que.size() > ABSTRACT_SERVER_SEND_QUE_MAX_COUNT)
|
|
{
|
|
retry++;
|
|
|
|
/* if ( ::cryptonote::core::get_is_stopping() ) { // TODO re-add fast stop
|
|
_fact("ABORT queue wait due to stopping");
|
|
return false; // aborted
|
|
}*/
|
|
|
|
long int ms = 250 + (rand()%50);
|
|
MDEBUG("Sleeping because QUEUE is FULL, in " << __FUNCTION__ << " for " << ms << " ms before packet_size="<<cb); // XXX debug sleep
|
|
m_send_que_lock.unlock();
|
|
boost::this_thread::sleep(boost::posix_time::milliseconds( ms ) );
|
|
m_send_que_lock.lock();
|
|
_dbg1("sleep for queue: " << ms);
|
|
|
|
if (retry > retry_limit) {
|
|
MWARNING("send que size is more than ABSTRACT_SERVER_SEND_QUE_MAX_COUNT(" << ABSTRACT_SERVER_SEND_QUE_MAX_COUNT << "), shutting down connection");
|
|
shutdown();
|
|
return false;
|
|
}
|
|
}
|
|
|
|
m_send_que.resize(m_send_que.size()+1);
|
|
m_send_que.back().assign((const char*)ptr, cb);
|
|
|
|
if(m_send_que.size() > 1)
|
|
{ // active operation should be in progress, nothing to do, just wait last operation callback
|
|
auto size_now = cb;
|
|
MDEBUG("do_send() NOW just queues: packet="<<size_now<<" B, is added to queue-size="<<m_send_que.size());
|
|
//do_send_handler_delayed( ptr , size_now ); // (((H))) // empty function
|
|
|
|
LOG_TRACE_CC(context, "[sock " << socket_.native_handle() << "] Async send requested " << m_send_que.front().size());
|
|
}
|
|
else
|
|
{ // no active operation
|
|
|
|
if(m_send_que.size()!=1)
|
|
{
|
|
_erro("Looks like no active operations, but send que size != 1!!");
|
|
return false;
|
|
}
|
|
|
|
auto size_now = m_send_que.front().size();
|
|
MDEBUG("do_send() NOW SENSD: packet="<<size_now<<" B");
|
|
if (speed_limit_is_enabled())
|
|
do_send_handler_write( ptr , size_now ); // (((H)))
|
|
|
|
CHECK_AND_ASSERT_MES( size_now == m_send_que.front().size(), false, "Unexpected queue size");
|
|
boost::asio::async_write(socket_, boost::asio::buffer(m_send_que.front().data(), size_now ) ,
|
|
//strand_.wrap(
|
|
boost::bind(&connection<t_protocol_handler>::handle_write, self, _1, _2)
|
|
//)
|
|
);
|
|
//_dbg3("(chunk): " << size_now);
|
|
//logger_handle_net_write(size_now);
|
|
//_info("[sock " << socket_.native_handle() << "] Async send requested " << m_send_que.front().size());
|
|
}
|
|
|
|
//do_send_handler_stop( ptr , cb ); // empty function
|
|
|
|
return true;
|
|
|
|
CATCH_ENTRY_L0("connection<t_protocol_handler>::do_send", false);
|
|
} // do_send_chunk
|
|
//---------------------------------------------------------------------------------
|
|
template<class t_protocol_handler>
|
|
bool connection<t_protocol_handler>::shutdown()
|
|
{
|
|
// Initiate graceful connection closure.
|
|
boost::system::error_code ignored_ec;
|
|
socket_.shutdown(boost::asio::ip::tcp::socket::shutdown_both, ignored_ec);
|
|
m_was_shutdown = true;
|
|
m_protocol_handler.release_protocol();
|
|
return true;
|
|
}
|
|
//---------------------------------------------------------------------------------
|
|
template<class t_protocol_handler>
|
|
bool connection<t_protocol_handler>::close()
|
|
{
|
|
TRY_ENTRY();
|
|
//_info("[sock " << socket_.native_handle() << "] Que Shutdown called.");
|
|
size_t send_que_size = 0;
|
|
CRITICAL_REGION_BEGIN(m_send_que_lock);
|
|
send_que_size = m_send_que.size();
|
|
CRITICAL_REGION_END();
|
|
boost::interprocess::ipcdetail::atomic_write32(&m_want_close_connection, 1);
|
|
if(!send_que_size)
|
|
{
|
|
shutdown();
|
|
}
|
|
|
|
return true;
|
|
CATCH_ENTRY_L0("connection<t_protocol_handler>::close", false);
|
|
}
|
|
//---------------------------------------------------------------------------------
|
|
template<class t_protocol_handler>
|
|
bool connection<t_protocol_handler>::cancel()
|
|
{
|
|
return close();
|
|
}
|
|
//---------------------------------------------------------------------------------
|
|
template<class t_protocol_handler>
|
|
void connection<t_protocol_handler>::handle_write(const boost::system::error_code& e, size_t cb)
|
|
{
|
|
TRY_ENTRY();
|
|
LOG_TRACE_CC(context, "[sock " << socket_.native_handle() << "] Async send calledback " << cb);
|
|
|
|
if (e)
|
|
{
|
|
_dbg1("[sock " << socket_.native_handle() << "] Some problems at write: " << e.message() << ':' << e.value());
|
|
shutdown();
|
|
return;
|
|
}
|
|
logger_handle_net_write(cb);
|
|
|
|
// The single sleeping that is needed for correctly handling "out" speed throttling
|
|
if (speed_limit_is_enabled()) {
|
|
sleep_before_packet(cb, 1, 1);
|
|
}
|
|
|
|
bool do_shutdown = false;
|
|
CRITICAL_REGION_BEGIN(m_send_que_lock);
|
|
if(m_send_que.empty())
|
|
{
|
|
_erro("[sock " << socket_.native_handle() << "] m_send_que.size() == 0 at handle_write!");
|
|
return;
|
|
}
|
|
|
|
m_send_que.pop_front();
|
|
if(m_send_que.empty())
|
|
{
|
|
if(boost::interprocess::ipcdetail::atomic_read32(&m_want_close_connection))
|
|
{
|
|
do_shutdown = true;
|
|
}
|
|
}else
|
|
{
|
|
//have more data to send
|
|
auto size_now = m_send_que.front().size();
|
|
MDEBUG("handle_write() NOW SENDS: packet="<<size_now<<" B" <<", from queue size="<<m_send_que.size());
|
|
if (speed_limit_is_enabled())
|
|
do_send_handler_write_from_queue(e, m_send_que.front().size() , m_send_que.size()); // (((H)))
|
|
CHECK_AND_ASSERT_MES( size_now == m_send_que.front().size(), void(), "Unexpected queue size");
|
|
boost::asio::async_write(socket_, boost::asio::buffer(m_send_que.front().data(), size_now) ,
|
|
// strand_.wrap(
|
|
boost::bind(&connection<t_protocol_handler>::handle_write, connection<t_protocol_handler>::shared_from_this(), _1, _2)
|
|
// )
|
|
);
|
|
//_dbg3("(normal)" << size_now);
|
|
}
|
|
CRITICAL_REGION_END();
|
|
|
|
if(do_shutdown)
|
|
{
|
|
shutdown();
|
|
}
|
|
CATCH_ENTRY_L0("connection<t_protocol_handler>::handle_write", void());
|
|
}
|
|
|
|
//---------------------------------------------------------------------------------
|
|
template<class t_protocol_handler>
|
|
void connection<t_protocol_handler>::setRpcStation()
|
|
{
|
|
m_connection_type = e_connection_type_RPC;
|
|
MDEBUG("set m_connection_type = RPC ");
|
|
}
|
|
|
|
|
|
template<class t_protocol_handler>
|
|
bool connection<t_protocol_handler>::speed_limit_is_enabled() const {
|
|
return m_connection_type != e_connection_type_RPC ;
|
|
}
|
|
|
|
/************************************************************************/
|
|
/* */
|
|
/************************************************************************/
|
|
|
|
template<class t_protocol_handler>
|
|
boosted_tcp_server<t_protocol_handler>::boosted_tcp_server( t_connection_type connection_type ) :
|
|
m_io_service_local_instance(new boost::asio::io_service()),
|
|
io_service_(*m_io_service_local_instance.get()),
|
|
acceptor_(io_service_),
|
|
m_stop_signal_sent(false), m_port(0),
|
|
m_sock_count(0), m_sock_number(0), m_threads_count(0),
|
|
m_pfilter(NULL), m_thread_index(0),
|
|
m_connection_type( connection_type ),
|
|
new_connection_()
|
|
{
|
|
create_server_type_map();
|
|
m_thread_name_prefix = "NET";
|
|
}
|
|
|
|
template<class t_protocol_handler>
|
|
boosted_tcp_server<t_protocol_handler>::boosted_tcp_server(boost::asio::io_service& extarnal_io_service, t_connection_type connection_type) :
|
|
io_service_(extarnal_io_service),
|
|
acceptor_(io_service_),
|
|
m_stop_signal_sent(false), m_port(0),
|
|
m_sock_count(0), m_sock_number(0), m_threads_count(0),
|
|
m_pfilter(NULL), m_thread_index(0),
|
|
m_connection_type(connection_type),
|
|
new_connection_()
|
|
{
|
|
create_server_type_map();
|
|
m_thread_name_prefix = "NET";
|
|
}
|
|
//---------------------------------------------------------------------------------
|
|
template<class t_protocol_handler>
|
|
boosted_tcp_server<t_protocol_handler>::~boosted_tcp_server()
|
|
{
|
|
this->send_stop_signal();
|
|
timed_wait_server_stop(10000);
|
|
}
|
|
//---------------------------------------------------------------------------------
|
|
template<class t_protocol_handler>
|
|
void boosted_tcp_server<t_protocol_handler>::create_server_type_map()
|
|
{
|
|
server_type_map["NET"] = e_connection_type_NET;
|
|
server_type_map["RPC"] = e_connection_type_RPC;
|
|
server_type_map["P2P"] = e_connection_type_P2P;
|
|
}
|
|
//---------------------------------------------------------------------------------
|
|
template<class t_protocol_handler>
|
|
bool boosted_tcp_server<t_protocol_handler>::init_server(uint32_t port, const std::string address)
|
|
{
|
|
TRY_ENTRY();
|
|
m_stop_signal_sent = false;
|
|
m_port = port;
|
|
m_address = address;
|
|
// Open the acceptor with the option to reuse the address (i.e. SO_REUSEADDR).
|
|
boost::asio::ip::tcp::resolver resolver(io_service_);
|
|
boost::asio::ip::tcp::resolver::query query(address, boost::lexical_cast<std::string>(port), boost::asio::ip::tcp::resolver::query::canonical_name);
|
|
boost::asio::ip::tcp::endpoint endpoint = *resolver.resolve(query);
|
|
acceptor_.open(endpoint.protocol());
|
|
acceptor_.set_option(boost::asio::ip::tcp::acceptor::reuse_address(true));
|
|
acceptor_.bind(endpoint);
|
|
acceptor_.listen();
|
|
boost::asio::ip::tcp::endpoint binded_endpoint = acceptor_.local_endpoint();
|
|
m_port = binded_endpoint.port();
|
|
MDEBUG("start accept");
|
|
new_connection_.reset(new connection<t_protocol_handler>(io_service_, m_config, m_sock_count, m_sock_number, m_pfilter, m_connection_type));
|
|
acceptor_.async_accept(new_connection_->socket(),
|
|
boost::bind(&boosted_tcp_server<t_protocol_handler>::handle_accept, this,
|
|
boost::asio::placeholders::error));
|
|
|
|
return true;
|
|
}
|
|
catch (const std::exception &e)
|
|
{
|
|
MFATAL("Error starting server: " << e.what());
|
|
return false;
|
|
}
|
|
catch (...)
|
|
{
|
|
MFATAL("Error starting server");
|
|
return false;
|
|
}
|
|
}
|
|
//-----------------------------------------------------------------------------
|
|
PUSH_WARNINGS
|
|
DISABLE_GCC_WARNING(maybe-uninitialized)
|
|
template<class t_protocol_handler>
|
|
bool boosted_tcp_server<t_protocol_handler>::init_server(const std::string port, const std::string& address)
|
|
{
|
|
uint32_t p = 0;
|
|
|
|
if (port.size() && !string_tools::get_xtype_from_string(p, port)) {
|
|
MERROR("Failed to convert port no = " << port);
|
|
return false;
|
|
}
|
|
return this->init_server(p, address);
|
|
}
|
|
POP_WARNINGS
|
|
//---------------------------------------------------------------------------------
|
|
template<class t_protocol_handler>
|
|
bool boosted_tcp_server<t_protocol_handler>::worker_thread()
|
|
{
|
|
TRY_ENTRY();
|
|
uint32_t local_thr_index = boost::interprocess::ipcdetail::atomic_inc32(&m_thread_index);
|
|
std::string thread_name = std::string("[") + m_thread_name_prefix;
|
|
thread_name += boost::to_string(local_thr_index) + "]";
|
|
MLOG_SET_THREAD_NAME(thread_name);
|
|
// _fact("Thread name: " << m_thread_name_prefix);
|
|
while(!m_stop_signal_sent)
|
|
{
|
|
try
|
|
{
|
|
io_service_.run();
|
|
}
|
|
catch(const std::exception& ex)
|
|
{
|
|
_erro("Exception at server worker thread, what=" << ex.what());
|
|
}
|
|
catch(...)
|
|
{
|
|
_erro("Exception at server worker thread, unknown execption");
|
|
}
|
|
}
|
|
//_info("Worker thread finished");
|
|
return true;
|
|
CATCH_ENTRY_L0("boosted_tcp_server<t_protocol_handler>::worker_thread", false);
|
|
}
|
|
//---------------------------------------------------------------------------------
|
|
template<class t_protocol_handler>
|
|
void boosted_tcp_server<t_protocol_handler>::set_threads_prefix(const std::string& prefix_name)
|
|
{
|
|
m_thread_name_prefix = prefix_name;
|
|
auto it = server_type_map.find(m_thread_name_prefix);
|
|
if (it==server_type_map.end()) throw std::runtime_error("Unknown prefix/server type:" + std::string(prefix_name));
|
|
auto connection_type = it->second; // the value of type
|
|
MINFO("Set server type to: " << connection_type << " from name: " << m_thread_name_prefix << ", prefix_name = " << prefix_name);
|
|
}
|
|
//---------------------------------------------------------------------------------
|
|
template<class t_protocol_handler>
|
|
void boosted_tcp_server<t_protocol_handler>::set_connection_filter(i_connection_filter* pfilter)
|
|
{
|
|
m_pfilter = pfilter;
|
|
}
|
|
//---------------------------------------------------------------------------------
|
|
template<class t_protocol_handler>
|
|
bool boosted_tcp_server<t_protocol_handler>::run_server(size_t threads_count, bool wait, const boost::thread::attributes& attrs)
|
|
{
|
|
TRY_ENTRY();
|
|
m_threads_count = threads_count;
|
|
m_main_thread_id = boost::this_thread::get_id();
|
|
MLOG_SET_THREAD_NAME("[SRV_MAIN]");
|
|
while(!m_stop_signal_sent)
|
|
{
|
|
|
|
// Create a pool of threads to run all of the io_services.
|
|
CRITICAL_REGION_BEGIN(m_threads_lock);
|
|
for (std::size_t i = 0; i < threads_count; ++i)
|
|
{
|
|
boost::shared_ptr<boost::thread> thread(new boost::thread(
|
|
attrs, boost::bind(&boosted_tcp_server<t_protocol_handler>::worker_thread, this)));
|
|
_note("Run server thread name: " << m_thread_name_prefix);
|
|
m_threads.push_back(thread);
|
|
}
|
|
CRITICAL_REGION_END();
|
|
// Wait for all threads in the pool to exit.
|
|
if (wait)
|
|
{
|
|
_fact("JOINING all threads");
|
|
for (std::size_t i = 0; i < m_threads.size(); ++i) {
|
|
m_threads[i]->join();
|
|
}
|
|
_fact("JOINING all threads - almost");
|
|
m_threads.clear();
|
|
_fact("JOINING all threads - DONE");
|
|
|
|
}
|
|
else {
|
|
_dbg1("Reiniting OK.");
|
|
return true;
|
|
}
|
|
|
|
if(wait && !m_stop_signal_sent)
|
|
{
|
|
//some problems with the listening socket ?..
|
|
_dbg1("Net service stopped without stop request, restarting...");
|
|
if(!this->init_server(m_port, m_address))
|
|
{
|
|
_dbg1("Reiniting service failed, exit.");
|
|
return false;
|
|
}else
|
|
{
|
|
_dbg1("Reiniting OK.");
|
|
}
|
|
}
|
|
}
|
|
return true;
|
|
CATCH_ENTRY_L0("boosted_tcp_server<t_protocol_handler>::run_server", false);
|
|
}
|
|
//---------------------------------------------------------------------------------
|
|
template<class t_protocol_handler>
|
|
bool boosted_tcp_server<t_protocol_handler>::is_thread_worker()
|
|
{
|
|
TRY_ENTRY();
|
|
CRITICAL_REGION_LOCAL(m_threads_lock);
|
|
BOOST_FOREACH(boost::shared_ptr<boost::thread>& thp, m_threads)
|
|
{
|
|
if(thp->get_id() == boost::this_thread::get_id())
|
|
return true;
|
|
}
|
|
if(m_threads_count == 1 && boost::this_thread::get_id() == m_main_thread_id)
|
|
return true;
|
|
return false;
|
|
CATCH_ENTRY_L0("boosted_tcp_server<t_protocol_handler>::is_thread_worker", false);
|
|
}
|
|
//---------------------------------------------------------------------------------
|
|
template<class t_protocol_handler>
|
|
bool boosted_tcp_server<t_protocol_handler>::timed_wait_server_stop(uint64_t wait_mseconds)
|
|
{
|
|
TRY_ENTRY();
|
|
boost::chrono::milliseconds ms(wait_mseconds);
|
|
for (std::size_t i = 0; i < m_threads.size(); ++i)
|
|
{
|
|
if(m_threads[i]->joinable() && !m_threads[i]->try_join_for(ms))
|
|
{
|
|
_dbg1("Interrupting thread " << m_threads[i]->native_handle());
|
|
m_threads[i]->interrupt();
|
|
}
|
|
}
|
|
return true;
|
|
CATCH_ENTRY_L0("boosted_tcp_server<t_protocol_handler>::timed_wait_server_stop", false);
|
|
}
|
|
//---------------------------------------------------------------------------------
|
|
template<class t_protocol_handler>
|
|
void boosted_tcp_server<t_protocol_handler>::send_stop_signal()
|
|
{
|
|
m_stop_signal_sent = true;
|
|
TRY_ENTRY();
|
|
connections_mutex.lock();
|
|
for (auto &c: connections_)
|
|
{
|
|
c->cancel();
|
|
}
|
|
connections_.clear();
|
|
connections_mutex.unlock();
|
|
io_service_.stop();
|
|
CATCH_ENTRY_L0("boosted_tcp_server<t_protocol_handler>::send_stop_signal()", void());
|
|
}
|
|
//---------------------------------------------------------------------------------
|
|
template<class t_protocol_handler>
|
|
bool boosted_tcp_server<t_protocol_handler>::is_stop_signal_sent()
|
|
{
|
|
return m_stop_signal_sent;
|
|
}
|
|
//---------------------------------------------------------------------------------
|
|
template<class t_protocol_handler>
|
|
void boosted_tcp_server<t_protocol_handler>::handle_accept(const boost::system::error_code& e)
|
|
{
|
|
MDEBUG("handle_accept");
|
|
TRY_ENTRY();
|
|
if (!e)
|
|
{
|
|
if (m_connection_type == e_connection_type_RPC) {
|
|
MDEBUG("New server for RPC connections");
|
|
new_connection_->setRpcStation(); // hopefully this is not needed actually
|
|
}
|
|
connection_ptr conn(std::move(new_connection_));
|
|
new_connection_.reset(new connection<t_protocol_handler>(io_service_, m_config, m_sock_count, m_sock_number, m_pfilter, m_connection_type));
|
|
acceptor_.async_accept(new_connection_->socket(),
|
|
boost::bind(&boosted_tcp_server<t_protocol_handler>::handle_accept, this,
|
|
boost::asio::placeholders::error));
|
|
|
|
boost::asio::socket_base::keep_alive opt(true);
|
|
conn->socket().set_option(opt);
|
|
|
|
conn->start(true, 1 < m_threads_count);
|
|
conn->save_dbg_log();
|
|
}else
|
|
{
|
|
_erro("Some problems at accept: " << e.message() << ", connections_count = " << m_sock_count);
|
|
}
|
|
CATCH_ENTRY_L0("boosted_tcp_server<t_protocol_handler>::handle_accept", void());
|
|
}
|
|
//---------------------------------------------------------------------------------
|
|
template<class t_protocol_handler>
|
|
bool boosted_tcp_server<t_protocol_handler>::connect(const std::string& adr, const std::string& port, uint32_t conn_timeout, t_connection_context& conn_context, const std::string& bind_ip)
|
|
{
|
|
TRY_ENTRY();
|
|
|
|
connection_ptr new_connection_l(new connection<t_protocol_handler>(io_service_, m_config, m_sock_count, m_sock_number, m_pfilter, m_connection_type) );
|
|
connections_mutex.lock();
|
|
connections_.insert(new_connection_l);
|
|
MDEBUG("connections_ size now " << connections_.size());
|
|
connections_mutex.unlock();
|
|
epee::misc_utils::auto_scope_leave_caller scope_exit_handler = epee::misc_utils::create_scope_leave_handler([&](){ CRITICAL_REGION_LOCAL(connections_mutex); connections_.erase(new_connection_l); });
|
|
boost::asio::ip::tcp::socket& sock_ = new_connection_l->socket();
|
|
|
|
//////////////////////////////////////////////////////////////////////////
|
|
boost::asio::ip::tcp::resolver resolver(io_service_);
|
|
boost::asio::ip::tcp::resolver::query query(boost::asio::ip::tcp::v4(), adr, port, boost::asio::ip::tcp::resolver::query::canonical_name);
|
|
boost::asio::ip::tcp::resolver::iterator iterator = resolver.resolve(query);
|
|
boost::asio::ip::tcp::resolver::iterator end;
|
|
if(iterator == end)
|
|
{
|
|
_erro("Failed to resolve " << adr);
|
|
return false;
|
|
}
|
|
//////////////////////////////////////////////////////////////////////////
|
|
|
|
|
|
//boost::asio::ip::tcp::endpoint remote_endpoint(boost::asio::ip::address::from_string(addr.c_str()), port);
|
|
boost::asio::ip::tcp::endpoint remote_endpoint(*iterator);
|
|
|
|
sock_.open(remote_endpoint.protocol());
|
|
if(bind_ip != "0.0.0.0" && bind_ip != "0" && bind_ip != "" )
|
|
{
|
|
boost::asio::ip::tcp::endpoint local_endpoint(boost::asio::ip::address::from_string(adr.c_str()), 0);
|
|
sock_.bind(local_endpoint);
|
|
}
|
|
|
|
/*
|
|
NOTICE: be careful to make sync connection from event handler: in case if all threads suddenly do sync connect, there will be no thread to dispatch events from io service.
|
|
*/
|
|
|
|
boost::system::error_code ec = boost::asio::error::would_block;
|
|
|
|
//have another free thread(s), work in wait mode, without event handling
|
|
struct local_async_context
|
|
{
|
|
boost::system::error_code ec;
|
|
boost::mutex connect_mut;
|
|
boost::condition_variable cond;
|
|
};
|
|
|
|
boost::shared_ptr<local_async_context> local_shared_context(new local_async_context());
|
|
local_shared_context->ec = boost::asio::error::would_block;
|
|
boost::unique_lock<boost::mutex> lock(local_shared_context->connect_mut);
|
|
auto connect_callback = [](boost::system::error_code ec_, boost::shared_ptr<local_async_context> shared_context)
|
|
{
|
|
shared_context->connect_mut.lock(); shared_context->ec = ec_; shared_context->cond.notify_one(); shared_context->connect_mut.unlock();
|
|
};
|
|
|
|
sock_.async_connect(remote_endpoint, boost::bind<void>(connect_callback, _1, local_shared_context));
|
|
while(local_shared_context->ec == boost::asio::error::would_block)
|
|
{
|
|
bool r = local_shared_context->cond.timed_wait(lock, boost::get_system_time() + boost::posix_time::milliseconds(conn_timeout));
|
|
if (m_stop_signal_sent)
|
|
{
|
|
if (sock_.is_open())
|
|
sock_.close();
|
|
return false;
|
|
}
|
|
if(local_shared_context->ec == boost::asio::error::would_block && !r)
|
|
{
|
|
//timeout
|
|
sock_.close();
|
|
_dbg3("Failed to connect to " << adr << ":" << port << ", because of timeout (" << conn_timeout << ")");
|
|
return false;
|
|
}
|
|
}
|
|
ec = local_shared_context->ec;
|
|
|
|
if (ec || !sock_.is_open())
|
|
{
|
|
_dbg3("Some problems at connect, message: " << ec.message());
|
|
if (sock_.is_open())
|
|
sock_.close();
|
|
return false;
|
|
}
|
|
|
|
_dbg3("Connected success to " << adr << ':' << port);
|
|
|
|
// start adds the connection to the config object's list, so we don't need to have it locally anymore
|
|
connections_mutex.lock();
|
|
connections_.erase(new_connection_l);
|
|
connections_mutex.unlock();
|
|
bool r = new_connection_l->start(false, 1 < m_threads_count);
|
|
if (r)
|
|
{
|
|
new_connection_l->get_context(conn_context);
|
|
//new_connection_l.reset(new connection<t_protocol_handler>(io_service_, m_config, m_sock_count, m_pfilter));
|
|
}
|
|
else
|
|
{
|
|
_erro("[sock " << new_connection_l->socket().native_handle() << "] Failed to start connection, connections_count = " << m_sock_count);
|
|
}
|
|
|
|
new_connection_l->save_dbg_log();
|
|
|
|
return r;
|
|
|
|
CATCH_ENTRY_L0("boosted_tcp_server<t_protocol_handler>::connect", false);
|
|
}
|
|
//---------------------------------------------------------------------------------
|
|
template<class t_protocol_handler> template<class t_callback>
|
|
bool boosted_tcp_server<t_protocol_handler>::connect_async(const std::string& adr, const std::string& port, uint32_t conn_timeout, const t_callback &cb, const std::string& bind_ip)
|
|
{
|
|
TRY_ENTRY();
|
|
connection_ptr new_connection_l(new connection<t_protocol_handler>(io_service_, m_config, m_sock_count, m_sock_number, m_pfilter, m_connection_type) );
|
|
connections_mutex.lock();
|
|
connections_.insert(new_connection_l);
|
|
MDEBUG("connections_ size now " << connections_.size());
|
|
connections_mutex.unlock();
|
|
epee::misc_utils::auto_scope_leave_caller scope_exit_handler = epee::misc_utils::create_scope_leave_handler([&](){ CRITICAL_REGION_LOCAL(connections_mutex); connections_.erase(new_connection_l); });
|
|
boost::asio::ip::tcp::socket& sock_ = new_connection_l->socket();
|
|
|
|
//////////////////////////////////////////////////////////////////////////
|
|
boost::asio::ip::tcp::resolver resolver(io_service_);
|
|
boost::asio::ip::tcp::resolver::query query(boost::asio::ip::tcp::v4(), adr, port, boost::asio::ip::tcp::resolver::query::canonical_name);
|
|
boost::asio::ip::tcp::resolver::iterator iterator = resolver.resolve(query);
|
|
boost::asio::ip::tcp::resolver::iterator end;
|
|
if(iterator == end)
|
|
{
|
|
_erro("Failed to resolve " << adr);
|
|
return false;
|
|
}
|
|
//////////////////////////////////////////////////////////////////////////
|
|
boost::asio::ip::tcp::endpoint remote_endpoint(*iterator);
|
|
|
|
sock_.open(remote_endpoint.protocol());
|
|
if(bind_ip != "0.0.0.0" && bind_ip != "0" && bind_ip != "" )
|
|
{
|
|
boost::asio::ip::tcp::endpoint local_endpoint(boost::asio::ip::address::from_string(adr.c_str()), 0);
|
|
sock_.bind(local_endpoint);
|
|
}
|
|
|
|
boost::shared_ptr<boost::asio::deadline_timer> sh_deadline(new boost::asio::deadline_timer(io_service_));
|
|
//start deadline
|
|
sh_deadline->expires_from_now(boost::posix_time::milliseconds(conn_timeout));
|
|
sh_deadline->async_wait([=](const boost::system::error_code& error)
|
|
{
|
|
if(error != boost::asio::error::operation_aborted)
|
|
{
|
|
_dbg3("Failed to connect to " << adr << ':' << port << ", because of timeout (" << conn_timeout << ")");
|
|
new_connection_l->socket().close();
|
|
}
|
|
});
|
|
//start async connect
|
|
sock_.async_connect(remote_endpoint, [=](const boost::system::error_code& ec_)
|
|
{
|
|
t_connection_context conn_context = AUTO_VAL_INIT(conn_context);
|
|
boost::system::error_code ignored_ec;
|
|
boost::asio::ip::tcp::socket::endpoint_type lep = new_connection_l->socket().local_endpoint(ignored_ec);
|
|
if(!ec_)
|
|
{//success
|
|
if(!sh_deadline->cancel())
|
|
{
|
|
cb(conn_context, boost::asio::error::operation_aborted);//this mean that deadline timer already queued callback with cancel operation, rare situation
|
|
}else
|
|
{
|
|
_dbg3("[sock " << new_connection_l->socket().native_handle() << "] Connected success to " << adr << ':' << port <<
|
|
" from " << lep.address().to_string() << ':' << lep.port());
|
|
|
|
// start adds the connection to the config object's list, so we don't need to have it locally anymore
|
|
connections_mutex.lock();
|
|
connections_.erase(new_connection_l);
|
|
connections_mutex.unlock();
|
|
bool r = new_connection_l->start(false, 1 < m_threads_count);
|
|
if (r)
|
|
{
|
|
new_connection_l->get_context(conn_context);
|
|
cb(conn_context, ec_);
|
|
}
|
|
else
|
|
{
|
|
_dbg3("[sock " << new_connection_l->socket().native_handle() << "] Failed to start connection to " << adr << ':' << port);
|
|
cb(conn_context, boost::asio::error::fault);
|
|
}
|
|
}
|
|
}else
|
|
{
|
|
_dbg3("[sock " << new_connection_l->socket().native_handle() << "] Failed to connect to " << adr << ':' << port <<
|
|
" from " << lep.address().to_string() << ':' << lep.port() << ": " << ec_.message() << ':' << ec_.value());
|
|
cb(conn_context, ec_);
|
|
}
|
|
});
|
|
return true;
|
|
CATCH_ENTRY_L0("boosted_tcp_server<t_protocol_handler>::connect_async", false);
|
|
}
|
|
|
|
} // namespace
|
|
} // namespace
|
|
PRAGMA_WARNING_POP
|