[riot-notifications] [RIOT-OS/RIOT] sock_dtls: add timeout to sock_dtls_send and sock_dtls_session_create (#14043)

Aiman Ismail notifications at github.com
Wed May 13 09:18:05 CEST 2020

@pokgak commented on this pull request.

>              /* handshake initiated, wait until connected or timed out */
             msg_t msg;
             do {
-                res = xtimer_msg_receive_timeout(&msg, 3 * DTLS_HANDSHAKE_TIMEOUT);
+                uint32_t start = xtimer_now_usec();
+                res = xtimer_msg_receive_timeout(&msg, timeout);
+                if (timeout != SOCK_NO_TIMEOUT) {
+                    timeout = _update_timeout(start, timeout);
+                }

Looking back, `EHOSTUNREACH` might be the wrong status code as it is for routes (no routes to host) but we don't know that here. We only know that `xtimer_msg_receive_timeout` has timed out.

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