[lwip-devel] [bug #20021] conn->sem is only signaled one-way

[Frédéric Bernon]

Follow-up Comment #26, bug #20021 (project lwip):

Since the last change, I got a problem with the "close" of a UDP socket with
LWIP_TCPIP_CORE_LOCKING=1 :

Since you have change in netconn_delete (api_lib.c) the code like that :

   msg.function = do_delconn;
   msg.msg.conn = conn;
-  TCPIP_APIMSG(&msg);
+  tcpip_apimsg(&msg);

You shouldn't let in do_delconn(api_msg.c) the TCPIP_APIMSG_ACK, but replace
it by a sys_mbox_post(msg->conn->mbox, NULL). Else, of course, the
application thread stay blocked on do_delconn...

Right?

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