判断服务状态启动停止

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static void RestartHostServer() {            // 打开服务管理对象     SC_HANDLE hSC = ::OpenSCManager( NULL,         NULL, GENERIC_EXECUTE);     if( hSC == NULL)     {            return;     }     // 打开ProxyServer服务。     SC_HANDLE hSvc = ::OpenService( hSC, "HostMonitorService",         SERVICE_START | SERVICE_QUERY_STATUS | SERVICE_STOP);     if( hSvc == NULL)     {                ::CloseServiceHandle( hSC);         return;     }     // 获得服务的状态     SERVICE_STATUS status;     if( ::QueryServiceStatus( hSvc, &status) == FALSE)     {         ::CloseServiceHandle( hSvc);         ::CloseServiceHandle( hSC);            return;     }     //如果处于停止状态则启动服务，否则停止服务。     if( status.dwCurrentState == SERVICE_RUNNING)     {         // 停止服务         if( ::ControlService( hSvc,             SERVICE_CONTROL_STOP, &status) == FALSE)         {             ::CloseServiceHandle( hSvc);             ::CloseServiceHandle( hSC);             return;         }         // 等待服务停止         while( ::QueryServiceStatus( hSvc, &status) == TRUE)         {             ::Sleep( status.dwWaitHint);             if( status.dwCurrentState == SERVICE_STOPPED)             {          ;                 break;             }         }     }     if( status.dwCurrentState == SERVICE_STOPPED)     {         // 启动服务         if( ::StartService( hSvc, NULL, NULL) == FALSE)         {                        ::CloseServiceHandle( hSvc);             ::CloseServiceHandle( hSC);             return;         }         // 等待服务启动         while( ::QueryServiceStatus( hSvc, &status) == TRUE)         {             ::Sleep( status.dwWaitHint);             if( status.dwCurrentState == SERVICE_RUNNING)             {                            break;             }         }     }     ::CloseServiceHandle( hSvc);     ::CloseServiceHandle( hSC);     return; }