Function libcoap_sys::coap_dtls_send

pub unsafe extern "C" fn coap_dtls_send(
    coap_session: *mut coap_session_t, 
    data: *const u8, 
    data_len: usize
) -> c_int

Send data to a DTLS peer.

Internal function.

@param coap_session The CoAP session. @param data pointer to data. @param data_len Number of bytes to send.

@return @c 0 if this would be blocking, @c -1 if there is an error or the number of cleartext bytes sent.