場景
發送指令，返回SOAP_TCP_ERROR錯誤碼，通過代碼定位到是IP地址不可達
調用堆棧查看內容
tcp_connect(soap * soap, const char * endpoint, const char * host, int port) 行 5096 C++
soap_try_connect_command(soap * soap, int http_command, const char * endpoint, const char * action) 行 21370 C++
soap_connect_command(soap * soap, int http_command, const char * endpoints, const char * action) 行 21319 C++
soap_connect(soap * soap, const char * endpoint, const char * action) 行 21275 C++
soap_call___trt__GetProfiles(soap * soap, const char * soap_endpoint, const char * soap_action, _trt__GetProfiles * trt__GetProfiles, _trt__GetProfilesResponse * trt__GetProfilesResponse) 行 23149 C++
onvif_get_profiles(soap * soap, std::basic_string<char,std::char_traits<char>,std::allocator<char> > user, std::basic_string<char,std::char_traits<char>,std::allocator<char> > pass,
[外部代碼]
[下面的框架可能不正確和/或缺失，沒有爲 kernel32.dll 加載符號] 未知
通過上述的調試堆棧，可以看出gSoap庫是一個短連接的TCP（默認下，不保活），只有在需要發送報文的情況下，纔跟服務器進行連接