LS,<br><br>I&#39;ve implemented a state machine (synchronous) with a couple of states and their events. Its purpose is to implement an USDT CAN stack. Because the lower level driver (made that too) passes the incoming CAN messages through a callback function I needed to derive one state in the state machine from:<br>
<br>a) the expected boost state base<br>b) my own interface which handles the callback for new messages (observer)<br><br>The state machine is performing well with one exception, hence this email.<br><br>The callback function is a member of a struct which is derived from a &amp; b and it is called by the CAN driver. <br>
<br>But then when I want to notify the state that the machine is currently in with a post_event this event seems to be discarded even though it should react on it (the machine state has transitions defined for this event and the current state is that state). I also tried using the transit call but that doesn&#39;t do anything either.<br>
<br>It is just this one member-function that is the problem and before rewriting the state-machine to an asynchronous state machine I wanted to consult some other users.<br><br>Regards,<br><br>Iwan Sanders<br><br><br>