static int lwip_socket_open(nsapi_stack_t *stack, nsapi_socket_t *handle, nsapi_protocol_t proto)
{
// check if network is connected
if (!lwip_get_ip_address()) {
return NSAPI_ERROR_NO_CONNECTION;
}
// allocate a socket
struct lwip_socket *s = lwip_arena_alloc();
if (!s) {
return NSAPI_ERROR_NO_SOCKET;
}
s->conn = netconn_new_with_callback(
proto == NSAPI_TCP ? NETCONN_TCP : NETCONN_UDP,
lwip_socket_callback);
if (!s->conn) {
lwip_arena_dealloc(s);
return NSAPI_ERROR_NO_SOCKET;
}
netconn_set_recvtimeout(s->conn, 1);
*(struct lwip_socket **)handle = s;
return 0;
}
static int lwip_socket_accept(nsapi_stack_t *stack, nsapi_socket_t server, nsapi_socket_t *handle, nsapi_addr_t *addr, uint16_t *port)
{
struct lwip_socket *s = (struct lwip_socket *)server;
struct lwip_socket *ns = lwip_arena_alloc();
err_t err = netconn_accept(s->conn, &ns->conn);
if (err != ERR_OK) {
lwip_arena_dealloc(ns);
return lwip_err_remap(err);
}
netconn_set_recvtimeout(ns->conn, 1);
*(struct lwip_socket **)handle = ns;
(void) netconn_peer(ns->conn, (ip_addr_t *)addr->bytes, port);
addr->version = NSAPI_IPv4;
return 0;
}
static int lwip_socket_open(nsapi_stack_t *stack, nsapi_socket_t *handle, nsapi_protocol_t proto)
{
struct lwip_socket *s = lwip_arena_alloc();
if (!s) {
return NSAPI_ERROR_NO_SOCKET;
}
s->conn = netconn_new_with_callback(
proto == NSAPI_TCP ? NETCONN_TCP : NETCONN_UDP,
lwip_socket_callback);
if (!s->conn) {
lwip_arena_dealloc(s);
return NSAPI_ERROR_NO_SOCKET;
}
netconn_set_recvtimeout(s->conn, 1);
*(struct lwip_socket **)handle = s;
return 0;
}
