mirror of
https://github.com/monero-project/monero.git
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608 lines
No EOL
18 KiB
C++
608 lines
No EOL
18 KiB
C++
// Copyright (c) 2014, The Monero Project
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//
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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 modification, are
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// permitted provided that the following conditions are met:
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//
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// 1. Redistributions of source code must retain the above copyright notice, this list of
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// conditions and the following disclaimer.
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//
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// 2. Redistributions in binary form must reproduce the above copyright notice, this list
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// of conditions and the following disclaimer in the documentation and/or other
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// materials provided with the distribution.
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//
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// 3. Neither the name of the copyright holder nor the names of its contributors may be
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// used to endorse or promote products derived from this software without specific
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// prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
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// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
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// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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// Parts of this file are originally copyright (c) 2006-2013, Andrey N. Sabelnikov
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#pragma comment(lib, "Ws2_32.lib")
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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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template<class TProtocol>
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cp_server_impl<TProtocol>::cp_server_impl():
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m_port(0), m_stop(false),
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m_worker_thread_counter(0), m_listen_socket(INVALID_SOCKET)
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{
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}
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//-------------------------------------------------------------
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template<class TProtocol>
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cp_server_impl<TProtocol>::~cp_server_impl()
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{
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deinit_server();
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}
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//-------------------------------------------------------------
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template<class TProtocol>
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bool cp_server_impl<TProtocol>::init_server(int port_no)
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{
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m_port = port_no;
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WSADATA wsad = {0};
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int err = ::WSAStartup(MAKEWORD(2,2), &wsad);
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if ( err != 0 || LOBYTE( wsad.wVersion ) != 2 || HIBYTE( wsad.wVersion ) != 2 )
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{
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LOG_ERROR("Could not find a usable WinSock DLL, err = " << err << " \"" << socket_errors::get_socket_error_text(err) <<"\"");
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return false;
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}
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m_initialized = true;
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m_listen_socket = ::WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP, NULL, 0, WSA_FLAG_OVERLAPPED);
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if(INVALID_SOCKET == m_listen_socket)
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{
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err = ::WSAGetLastError();
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LOG_ERROR("Failed to create socket, err = " << err << " \"" << socket_errors::get_socket_error_text(err) <<"\"");
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return false;
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}
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int opt = 1;
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err = setsockopt (m_listen_socket, SOL_SOCKET,SO_REUSEADDR, reinterpret_cast<char*>(&opt), sizeof(int));
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if(SOCKET_ERROR == err )
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{
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err = ::WSAGetLastError();
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LOG_PRINT("Failed to setsockopt(SO_REUSEADDR), err = " << err << " \"" << socket_errors::get_socket_error_text(err) <<"\"", LOG_LEVEL_1);
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deinit_server();
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return false;
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}
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sockaddr_in adr = {0};
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adr.sin_family = AF_INET;
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adr.sin_addr.s_addr = htonl(INADDR_ANY);
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adr.sin_port = (u_short)htons(m_port);
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//binding
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err = bind(m_listen_socket, (const sockaddr*)&adr, sizeof(adr ));
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if(SOCKET_ERROR == err )
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{
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err = ::WSAGetLastError();
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LOG_PRINT("Failed to Bind, err = " << err << " \"" << socket_errors::get_socket_error_text(err) <<"\"", LOG_LEVEL_1);
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deinit_server();
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return false;
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}
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m_completion_port = ::CreateIoCompletionPort(INVALID_HANDLE_VALUE, NULL, 0, 0);
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if(INVALID_HANDLE_VALUE == m_completion_port)
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{
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err = ::WSAGetLastError();
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LOG_PRINT("Failed to CreateIoCompletionPort, err = " << err << " \"" << socket_errors::get_socket_error_text(err) <<"\"", LOG_LEVEL_1);
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deinit_server();
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return false;
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}
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return true;
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}
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//-------------------------------------------------------------
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//-------------------------------------------------------------
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static int CALLBACK CPConditionFunc(
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IN LPWSABUF lpCallerId,
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IN LPWSABUF lpCallerData,
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IN OUT LPQOS lpSQOS,
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IN OUT LPQOS lpGQOS,
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IN LPWSABUF lpCalleeId,
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OUT LPWSABUF lpCalleeData,
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OUT GROUP FAR *g,
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IN DWORD_PTR dwCallbackData
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)
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{
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/*cp_server_impl* pthis = (cp_server_impl*)dwCallbackData;
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if(!pthis)
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return CF_REJECT;*/
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/*if(pthis->get_active_connections_num()>=FD_SETSIZE-1)
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{
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LOG_PRINT("Maximum connections count overfull.", LOG_LEVEL_2);
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return CF_REJECT;
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}*/
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return CF_ACCEPT;
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}
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//-------------------------------------------------------------
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template<class TProtocol>
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size_t cp_server_impl<TProtocol>::get_active_connections_num()
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{
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return m_connections.size();
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}
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//-------------------------------------------------------------
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template<class TProtocol>
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unsigned CALLBACK cp_server_impl<TProtocol>::worker_thread(void* param)
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{
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if(!param)
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return 0;
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cp_server_impl<TProtocol>* pthis = (cp_server_impl<TProtocol>*)param;
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pthis->worker_thread_member();
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return 1;
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}
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//-------------------------------------------------------------
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template<class TProtocol>
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bool cp_server_impl<TProtocol>::worker_thread_member()
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{
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LOG_PRINT("Worker thread STARTED", LOG_LEVEL_1);
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bool stop_handling = false;
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while(!stop_handling)
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{
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PROFILE_FUNC("[worker_thread]Worker Loop");
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DWORD bytes_transfered = 0;
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connection<TProtocol>* pconnection = 0;
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io_data_base* pio_data = 0;
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{
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PROFILE_FUNC("[worker_thread]GetQueuedCompletionStatus");
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BOOL res = ::GetQueuedCompletionStatus (m_completion_port, &bytes_transfered , (PULONG_PTR)&pconnection, (LPOVERLAPPED *)&pio_data, INFINITE);
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if (res == 0)
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{
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// check return code for error
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int err = GetLastError();
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LOG_PRINT("GetQueuedCompletionStatus failed with error " << err << " " << log_space::get_win32_err_descr(err), LOG_LEVEL_1);
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if(pio_data)
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::InterlockedExchange(&pio_data->m_is_in_use, 0);
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continue;
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}
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}
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if(pio_data)
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::InterlockedExchange(&pio_data->m_is_in_use, 0);
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if(!bytes_transfered && !pconnection && !pio_data)
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{
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//signal to stop
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break;
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}
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if(!pconnection || !pio_data)
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{
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LOG_PRINT("BIG FAIL: pconnection or pio_data is empty: pconnection=" << pconnection << " pio_data=" << pio_data, LOG_LEVEL_0);
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break;
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}
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if(::InterlockedCompareExchange(&pconnection->m_connection_shutwoned, 0, 0))
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{
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LOG_ERROR("InterlockedCompareExchange(&pconnection->m_connection_shutwoned, 0, 0)");
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//DebugBreak();
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}
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if(pio_data->m_op_type == op_type_stop)
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{
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if(!pconnection)
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{
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LOG_ERROR("op_type=op_type_stop, but pconnection is empty!!!");
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continue;
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}
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shutdown_connection(pconnection);
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continue;//
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}
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else if(pio_data->m_op_type == op_type_send)
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{
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continue;
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//do nothing, just queuing request
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}else if(pio_data->m_op_type == op_type_recv)
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{
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PROFILE_FUNC("[worker_thread]m_tprotocol_handler.handle_recv");
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if(bytes_transfered)
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{
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bool res = pconnection->m_tprotocol_handler.handle_recv(pio_data->Buffer, bytes_transfered);
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if(!res)
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pconnection->query_shutdown();
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}
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else
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{
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pconnection->query_shutdown();
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continue;
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}
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}
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//preparing new request,
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{
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PROFILE_FUNC("[worker_thread]RECV Request small loop");
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int res = 0;
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while(true)
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{
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LOG_PRINT("Prepearing data for WSARecv....", LOG_LEVEL_3);
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ZeroMemory(&pio_data->m_overlapped, sizeof(OVERLAPPED));
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pio_data->DataBuf.len = pio_data->TotalBuffBytes;
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pio_data->DataBuf.buf = pio_data->Buffer;
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pio_data->m_op_type = op_type_recv;
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//calling WSARecv() and go to completion waiting
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DWORD bytes_recvd = 0;
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DWORD flags = 0;
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LOG_PRINT("Calling WSARecv....", LOG_LEVEL_3);
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::InterlockedExchange(&pio_data->m_is_in_use, 1);
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res = WSARecv(pconnection->m_sock, &(pio_data->DataBuf), 1, &bytes_recvd , &flags, &(pio_data->m_overlapped), NULL);
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if(res == SOCKET_ERROR )
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{
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int err = ::WSAGetLastError();
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if(WSA_IO_PENDING == err )
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{//go pending, ok
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LOG_PRINT("WSARecv return WSA_IO_PENDING", LOG_LEVEL_3);
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break;
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}
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LOG_ERROR("BIG FAIL: WSARecv error code not correct, res=" << res << " last_err=" << err);
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::InterlockedExchange(&pio_data->m_is_in_use, 0);
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pconnection->query_shutdown();
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break;
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}
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break;
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/*else if(0 == res)
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{
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if(!bytes_recvd)
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{
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::InterlockedExchange(&pio_data->m_is_in_use, 0);
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LOG_PRINT("WSARecv return 0, bytes_recvd=0, graceful close.", LOG_LEVEL_3);
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int err = ::WSAGetLastError();
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//LOG_ERROR("BIG FAIL: WSARecv error code not correct, res=" << res << " last_err=" << err);
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//pconnection->query_shutdown();
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break;
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}else
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{
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LOG_PRINT("WSARecv return immediatily 0, bytes_recvd=" << bytes_recvd, LOG_LEVEL_3);
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//pconnection->m_tprotocol_handler.handle_recv(pio_data->Buffer, bytes_recvd);
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}
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}*/
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}
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}
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}
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LOG_PRINT("Worker thread STOPED", LOG_LEVEL_1);
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::InterlockedDecrement(&m_worker_thread_counter);
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return true;
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}
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//-------------------------------------------------------------
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template<class TProtocol>
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bool cp_server_impl<TProtocol>::shutdown_connection(connection<TProtocol>* pconn)
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{
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PROFILE_FUNC("[shutdown_connection]");
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if(!pconn)
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{
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LOG_ERROR("Attempt to remove null pptr connection!");
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return false;
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}
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else
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{
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LOG_PRINT("Shutting down connection ("<< pconn << ")", LOG_LEVEL_3);
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}
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m_connections_lock.lock();
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connections_container::iterator it = m_connections.find(pconn->m_sock);
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m_connections_lock.unlock();
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if(it == m_connections.end())
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{
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LOG_ERROR("Failed to find closing socket=" << pconn->m_sock);
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return false;
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}
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SOCKET sock = it->second->m_sock;
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{
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PROFILE_FUNC("[shutdown_connection] shutdown, close");
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::shutdown(it->second->m_sock, SD_SEND );
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}
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size_t close_sock_wait_count = 0;
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{
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LOG_PRINT("Entered to 'in_use wait zone'", LOG_LEVEL_3);
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PROFILE_FUNC("[shutdown_connection] wait for in_use");
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while(::InterlockedCompareExchange(&it->second->m_precv_data->m_is_in_use, 1, 1))
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{
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Sleep(100);
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close_sock_wait_count++;
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}
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LOG_PRINT("First step to 'in_use wait zone'", LOG_LEVEL_3);
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while(::InterlockedCompareExchange(&it->second->m_psend_data->m_is_in_use, 1, 1))
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{
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Sleep(100);
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close_sock_wait_count++;
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}
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LOG_PRINT("Leaved 'in_use wait zone'", LOG_LEVEL_3);
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}
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::closesocket(it->second->m_sock);
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::InterlockedExchange(&it->second->m_connection_shutwoned, 1);
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m_connections_lock.lock();
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m_connections.erase(it);
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m_connections_lock.unlock();
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LOG_PRINT("Socked " << sock << " closed, wait_count=" << close_sock_wait_count, LOG_LEVEL_2);
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return true;
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}
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//-------------------------------------------------------------
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template<class TProtocol>
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bool cp_server_impl<TProtocol>::run_server(int threads_count = 0)
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{
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int err = listen(m_listen_socket, 100);
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if(SOCKET_ERROR == err )
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{
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err = ::WSAGetLastError();
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LOG_ERROR("Failed to listen, err = " << err << " \"" << socket_errors::get_socket_error_text(err) <<"\"");
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return false;
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}
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if(!threads_count)
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{
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SYSTEM_INFO si = {0};
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::GetSystemInfo(&si);
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threads_count = si.dwNumberOfProcessors + 2;
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}
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for(int i = 0; i != threads_count; i++)
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{
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boost::thread(boost::bind(&cp_server_impl::worker_thread_member, this));
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//HANDLE h_thread = threads_helper::create_thread(worker_thread, this);
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InterlockedIncrement(&m_worker_thread_counter);
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//::CloseHandle(h_thread);
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}
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LOG_PRINT("Numbers of worker threads started: " << threads_count, LOG_LEVEL_1);
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m_stop = false;
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while(!m_stop)
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{
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PROFILE_FUNC("[run_server] main_loop");
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TIMEVAL tv = {0};
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tv.tv_sec = 0;
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tv.tv_usec = 100;
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fd_set sock_set;
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sock_set.fd_count = 1;
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sock_set.fd_array[0] = m_listen_socket;
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int select_res = 0;
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{
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PROFILE_FUNC("[run_server] select");
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select_res = select(0, &sock_set, &sock_set, NULL, &tv);
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}
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if(SOCKET_ERROR == select_res)
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{
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err = ::WSAGetLastError();
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LOG_ERROR("Failed to select, err = " << err << " \"" << socket_errors::get_socket_error_text(err) <<"\"");
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return false;
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}
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if(!select_res)
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{
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on_net_idle();
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continue;
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}
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else
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{
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sockaddr_in adr_from = {0};
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int adr_len = sizeof(adr_from);
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SOCKET new_sock = INVALID_SOCKET;
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{
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PROFILE_FUNC("[run_server] WSAAccept");
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new_sock = ::WSAAccept(m_listen_socket, (sockaddr *)&adr_from, &adr_len, CPConditionFunc, (DWORD_PTR)this);
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}
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if(INVALID_SOCKET == new_sock)
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{
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if(m_stop)
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break;
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int err = ::WSAGetLastError();
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LOG_PRINT("Failed to WSAAccept, err = " << err << " \"" << socket_errors::get_socket_error_text(err) <<"\"", LOG_LEVEL_2);
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continue;
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}
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LOG_PRINT("Accepted connection (new socket=" << new_sock << ")", LOG_LEVEL_2);
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{
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PROFILE_FUNC("[run_server] Add new connection");
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add_new_connection(new_sock, adr_from.sin_addr.s_addr, adr_from.sin_port);
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}
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}
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}
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LOG_PRINT("Closing connections("<< m_connections.size() << ") and waiting...", LOG_LEVEL_2);
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m_connections_lock.lock();
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for(connections_container::iterator it = m_connections.begin(); it != m_connections.end(); it++)
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{
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::shutdown(it->second->m_sock, SD_BOTH);
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::closesocket(it->second->m_sock);
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}
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m_connections_lock.unlock();
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size_t wait_count = 0;
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while(m_connections.size() && wait_count < 100)
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{
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::Sleep(100);
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wait_count++;
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}
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LOG_PRINT("Connections closed OK (wait_count=" << wait_count << ")", LOG_LEVEL_2);
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LOG_PRINT("Stopping worker threads("<< m_worker_thread_counter << ").", LOG_LEVEL_2);
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for(int i = 0; i<m_worker_thread_counter; i++)
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{
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::PostQueuedCompletionStatus(m_completion_port, 0, 0, 0);
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}
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wait_count = 0;
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while(InterlockedCompareExchange(&m_worker_thread_counter, 0, 0) && wait_count < 100)
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{
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Sleep(100);
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wait_count++;
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}
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LOG_PRINT("Net Server STOPPED, wait_count = " << wait_count, LOG_LEVEL_1);
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return true;
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}
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//-------------------------------------------------------------
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template<class TProtocol>
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bool cp_server_impl<TProtocol>::add_new_connection(SOCKET new_sock, long ip_from, int port_from)
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{
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PROFILE_FUNC("[add_new_connection]");
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LOG_PRINT("Add new connection zone: entering lock", LOG_LEVEL_3);
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m_connections_lock.lock();
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boost::shared_ptr<connection<TProtocol> > ptr;
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ptr.reset(new connection<TProtocol>(m_config));
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connection<TProtocol>& conn = *ptr.get();
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m_connections[new_sock] = ptr;
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LOG_PRINT("Add new connection zone: leaving lock", LOG_LEVEL_3);
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m_connections_lock.unlock();
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conn.init_buffers();
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conn.m_sock = new_sock;
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conn.context.m_remote_ip = ip_from;
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conn.context.m_remote_port = port_from;
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conn.m_completion_port = m_completion_port;
|
|
{
|
|
PROFILE_FUNC("[add_new_connection] CreateIoCompletionPort");
|
|
::CreateIoCompletionPort((HANDLE)new_sock, m_completion_port, (ULONG_PTR)&conn, 0);
|
|
}
|
|
|
|
//if(NULL == ::CreateIoCompletionPort((HANDLE)new_sock, m_completion_port, (ULONG_PTR)&conn, 0))
|
|
//{
|
|
// int err = ::GetLastError();
|
|
// LOG_PRINT("Failed to CreateIoCompletionPort(associate socket and completion port), err = " << err << " \"" << socket_errors::get_socket_error_text(err) <<"\"", LOG_LEVEL_2);
|
|
// return false;
|
|
//}
|
|
|
|
conn.m_tprotocol_handler.after_init_connection();
|
|
{
|
|
PROFILE_FUNC("[add_new_connection] starting loop");
|
|
int res = 0;
|
|
while(true)//res!=SOCKET_ERROR)
|
|
{
|
|
PROFILE_FUNC("[add_new_connection] in loop time");
|
|
conn.m_precv_data->TotalBuffBytes = LEVIN_DEFAULT_DATA_BUFF_SIZE;
|
|
ZeroMemory(&conn.m_precv_data->m_overlapped, sizeof(OVERLAPPED));
|
|
conn.m_precv_data->DataBuf.len = conn.m_precv_data->TotalBuffBytes;
|
|
conn.m_precv_data->DataBuf.buf = conn.m_precv_data->Buffer;
|
|
conn.m_precv_data->m_op_type = op_type_recv;
|
|
InterlockedExchange(&conn.m_precv_data->m_is_in_use, 1);
|
|
DWORD bytes_recvd = 0;
|
|
DWORD flags = 0;
|
|
|
|
::InterlockedExchange(&conn.m_precv_data->m_is_in_use, 1);
|
|
{
|
|
PROFILE_FUNC("[add_new_connection] ::WSARecv");
|
|
res = ::WSARecv(conn.m_sock, &(conn.m_precv_data->DataBuf), 1, &bytes_recvd , &flags, &(conn.m_precv_data->m_overlapped), NULL);
|
|
}
|
|
if(res == SOCKET_ERROR )
|
|
{
|
|
int err = ::WSAGetLastError();
|
|
if(WSA_IO_PENDING == err )
|
|
{
|
|
break;
|
|
}
|
|
LOG_ERROR("BIG FAIL: WSARecv error code not correct, res=" << res << " last_err=" << err << " " << log_space::get_win32_err_descr(err));
|
|
::InterlockedExchange(&conn.m_precv_data->m_is_in_use, 0);
|
|
conn.query_shutdown();
|
|
//shutdown_connection(&conn);
|
|
break;
|
|
}
|
|
|
|
|
|
break;
|
|
/*else if(0 == res)
|
|
{
|
|
if(!bytes_recvd)
|
|
{
|
|
PROFILE_FUNC("[add_new_connection] shutdown_connection");
|
|
::InterlockedExchange(&conn.m_precv_data->m_is_in_use, 0);
|
|
conn.query_shutdown();
|
|
//shutdown_connection(&conn);
|
|
break;
|
|
}else
|
|
{
|
|
PROFILE_FUNC("[add_new_connection] handle_recv");
|
|
}
|
|
}*/
|
|
}
|
|
}
|
|
|
|
|
|
|
|
return true;
|
|
}
|
|
//-------------------------------------------------------------
|
|
template<class TProtocol>
|
|
bool cp_server_impl<TProtocol>::deinit_server()
|
|
{
|
|
if(!m_initialized)
|
|
return true;
|
|
|
|
if(INVALID_SOCKET != m_listen_socket)
|
|
{
|
|
shutdown(m_listen_socket, SD_BOTH);
|
|
int res = closesocket(m_listen_socket);
|
|
if(SOCKET_ERROR == res)
|
|
{
|
|
int err = ::WSAGetLastError();
|
|
LOG_ERROR("Failed to closesocket(), err = " << err << " \"" << socket_errors::get_socket_error_text(err) <<"\"");
|
|
}
|
|
m_listen_socket = INVALID_SOCKET;
|
|
}
|
|
|
|
int res = ::WSACleanup();
|
|
if(SOCKET_ERROR == res)
|
|
{
|
|
int err = ::WSAGetLastError();
|
|
LOG_ERROR("Failed to WSACleanup(), err = " << err << " \"" << socket_errors::get_socket_error_text(err) <<"\"");
|
|
}
|
|
m_initialized = false;
|
|
|
|
return true;
|
|
}
|
|
|
|
//-------------------------------------------------------------
|
|
template<class TProtocol>
|
|
bool cp_server_impl<TProtocol>::send_stop_signal()
|
|
{
|
|
::InterlockedExchange(&m_stop, 1);
|
|
return true;
|
|
}
|
|
//-------------------------------------------------------------
|
|
template<class TProtocol>
|
|
bool cp_server_impl<TProtocol>::is_stop_signal()
|
|
{
|
|
return m_stop?true:false;
|
|
}
|
|
//-------------------------------------------------------------
|
|
}
|
|
} |