id summary reporter owner description type status milestone component version severity resolution keywords cc 13086 Exception Throw -> { boost::asio::ip::tcp::aceptor * acceptor->open(); } ya.tarakanov.ilya@… chris_kohlhoff " {{{ asio.h #include ""boost/asio.hpp"" struct SNetGlobal { static boost::asio::io_service * GetStcIOService(); static bool RunIOServiceInThreads(int nCountThr = 1); }; asio.cpp #include ""asio.h"" #include #include static boost::asio::io_service * s_io_service = NULL; static std::vector s_thread_pool; io_service * SNetGlobal::GetStcIOService() { if (!s_io_service) { s_io_service = new io_service; } return s_io_service; } bool SNetGlobal::RunIOServiceInThreads(int nCountThr) { while (nCountThr--) { s_thread_pool.emplace_back([=] { s_io_service->run(); }); } return true; } listener.h class CUCListener { public: void Start(); void OnAccept(const boost::system::error_code & ec); private: tcp::acceptor * m_pAcceptor; tcp::socket * m_pSocket; }; listener.cpp #include ""asio.h"" #include ""listener.h"" void CUCListener ::Start() { tcp::endpoint endpoint(tcp::v4(), 1974); m_pAcceptor = new tcp::aceptor(*SNetGlobal::GetStcIOService()); m_pAcceptor->open(endpoint.protocol()); m_pAcceptor->set_option(tcp::acceptor::reuse_address(true)); m_pAcceptor->bind(endpoint); m_pAcceptor->listen(); m_pAcceptor->async_accept(*m_pSocket, boost::bind(&CUCListener::OnAccept, this, boost::asio::placeholders::error)); SNetGlobal::RunIOServiceInThreads(); } void CUCListener::OnAccept(const boost::system::error_code & ec) { std::cout << ""Accept Success"" << std::endl; } }}} Hi, sometimes throw exception and function CUCListener::OnAccept not called when connected socket_ops.ipp {{{ socket_type socket(int af, int type, int protocol, boost::system::error_code& ec) { clear_last_error(); #if defined(BOOST_ASIO_WINDOWS) || defined(__CYGWIN__) socket_type s = error_wrapper(::WSASocketW(af, type, protocol, 0, 0, WSA_FLAG_OVERLAPPED), ec); // Exception Throw if (s == invalid_socket) return s; ... } }}} " Support Requests new To Be Determined asio Boost 1.63.0 Problem