Merge pull request #13205 from kjbracey-arm/lwipnonblock

LWIPStack: set sockets non-blocking

Author: 0xc0170

features/lwipstack/LWIPStack.cpp

@@ -271,7 +271,7 @@ nsapi_error_t LWIP::socket_open(nsapi_socket_t *handle, nsapi_protocol_t proto)
         return NSAPI_ERROR_NO_SOCKET;
     }
 
-    netconn_set_recvtimeout(s->conn, 1);
+    netconn_set_nonblocking(s->conn, true);
     *(struct mbed_lwip_socket **)handle = s;
     return 0;
 }
@@ -376,7 +376,7 @@ nsapi_error_t LWIP::socket_accept(nsapi_socket_t server, nsapi_socket_t *handle,
         return err_remap(err);
     }
 
-    netconn_set_recvtimeout(ns->conn, 1);
+    netconn_set_nonblocking(ns->conn, true);
     *(struct mbed_lwip_socket **)handle = ns;
 
     ip_addr_t peer_addr;
@@ -390,8 +390,6 @@ nsapi_error_t LWIP::socket_accept(nsapi_socket_t server, nsapi_socket_t *handle,
         address->set_port(port);
     }
 
-    netconn_set_nonblocking(ns->conn, true);
-
     return 0;
 #else
     return NSAPI_ERROR_UNSUPPORTED;

features/lwipstack/lwipopts.h

@@ -201,7 +201,6 @@
 
 #define LWIP_COMPAT_SOCKETS         0
 #define LWIP_POSIX_SOCKETS_IO_NAMES 0
-#define LWIP_SO_RCVTIMEO            1
 
 #define LWIP_BROADCAST_PING         1