llback has been called to indicate state change or some other significant state machine event. This may mean that the callback gets invoked more than once per state in some situations.</p>

</dd>
<dt id="SSL_CB_EXIT">SSL_CB_EXIT</dt>
<dd>

<p>Callback has been called to indicate exit of a handshake function. This will happen after the end of a handshake, but may happen at other times too such as on error or when IO might otherwise block and nonblocking is being used.</p>

</dd>
<dt id="SSL_CB_READ">SSL_CB_R