Pass data to states, in boost state chart

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jusva2010

29 Apr 2011 29 Apr '11

3:50 a.m.

Hi All, Is there any way I can pass data to state event handler? Any pointers really appreciated. Thanks in advance Justin -- View this message in context: http://boost.2283326.n4.nabble.com/Pass-data-to-states-in-boost-state-chart-... Sent from the Boost - Users mailing list archive at Nabble.com.

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Igor R

29 Apr 29 Apr

3:46 p.m.

...

Is there any way I can pass data to state event handler?

use simple_state::triggering_event()

Igor R

3:55 p.m.

...

Is there any way I can pass data to state event handler?

Actually, if you mean the reaction itself, it accepts the event as a parameter, so just pass everything inside the event.

jusva2010

3 May 3 May

2:55 a.m.

Thanks alot for your reply.. Do you have any sample code for doing that? Currently i am trying like this...I am not sure it is the correct way to do that. 1. Declared a local varable in State machine struct StateMachine:sc::state_machine<StateMachine, Initial> { int getData(); void setData(int data); private int data; } 2. Set the value SateMachine machine; machine.setData(100); machine.initiate(); machine.setData(200); machine.process_evet(event()); 3. access that value from state event handler sc::result Initial::react(const event()) { cout << "Data:" << context< StateMachine>().getData() << endl; } Please advise if there is any other better solution Thanks in advance justin -- View this message in context: http://boost.2283326.n4.nabble.com/Pass-data-to-states-in-boost-state-chart-... Sent from the Boost - Users mailing list archive at Nabble.com.

Igor R

8:01 a.m.

...

SateMachine machine; machine.setData(100); machine.initiate(); machine.setData(200); machine.process_evet(event());

3. access that value from state event handler

sc::result Initial::react(const event()) { cout << "Data:" << context< StateMachine>().getData() << endl; }

Please advise if there is any other better solution

If all you need is to pass the data to the reaction, you can encapsulate it in the event: struct your_event : sc::event { data_type data_; }; //.... your_event e; e.data_ = data; machine.process_event(e); //... sc::result react(const your_event &e) { cout << e.data_; }

jusva2010

9:51 a.m.

Thanks alot..! -- View this message in context: http://boost.2283326.n4.nabble.com/Pass-data-to-states-in-boost-state-chart-... Sent from the Boost - Users mailing list archive at Nabble.com.

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Igor R
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