set keep-alive defaults for new connections

helge

2021-11-06 81ce32efc7ddebf1f09851d4e4ac34681f436e57

 examples/test-LwIP-netconn/scpi_server.c

@@ -253,6 +253,10 @@
        } else {
            /* connection established */
            iprintf("***Connection established %s\r\n", inet_ntoa(newconn->pcb.ip->remote_ip));
            newconn->pcb.tcp->so_options |= SOF_KEEPALIVE;
            newconn->pcb.tcp->keep_idle   = SCPI_KEEP_IDLE;  // Override TCP_KEEPIDLE_DEFAULT  for this connection.
            newconn->pcb.tcp->keep_intvl  = SCPI_KEEP_INTVL; // Override TCP_KEEPINTVL_DEFAULT for this connection.
            newconn->pcb.tcp->keep_cnt    = SCPI_KEEP_CNT;   // Override TCP_KEEPCNT_DEFAULT   for this connection.
            user_data->io = newconn;
        }
    }
@@ -270,6 +274,10 @@
        } else {
            /* control connection established */
            iprintf("***Control Connection established %s\r\n", inet_ntoa(newconn->pcb.ip->remote_ip));
            newconn->pcb.tcp->so_options |= SOF_KEEPALIVE;
            newconn->pcb.tcp->keep_idle   = SCPI_KEEP_IDLE;  // Override TCP_KEEPIDLE_DEFAULT  for this connection.
            newconn->pcb.tcp->keep_intvl  = SCPI_KEEP_INTVL; // Override TCP_KEEPINTVL_DEFAULT for this connection.
            newconn->pcb.tcp->keep_cnt    = SCPI_KEEP_CNT;   // Override TCP_KEEPCNT_DEFAULT   for this connection.
            user_data->control_io = newconn;
        }
    }