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Questions tagged [boost-statechart]

Boost.Statechart is a C++ library allowing you to easily and quickly define state machines.

Boost.Statechart is a C++ library allowing you to easily and quickly define state machines. It is not as high performance as the alternative Boost.MSM but it is more scalable and compiles considerably faster.

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How to get the current most derived state in a boost::statechart state_machine object?

I am using boost::state_chart library. For debug purposes, I would like to know at any given time the state of my state machine. How to get the current (most derived) state in the state_machine object ?
wip
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reacting to all orthogonal states having finished in Boost.statechart

I'm working on a robot control program that is based on a state machine. While the program uses Qt State Machine Framework, I also attempted to implement it using Boost.statechart (BS) as a theoretical exercise and a way to learn / evaluate the…
artm
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Recording state changes in boost::statechart

For Unit Testing, I'm trying to record all the state transactions after I kick off a state machine event. E.g., if I post_event A to the fifo_scheduler of an async_state_machine, the state machine will go through states B, C, then back to D. Without…
kenyee
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boost statechart: Is it still maintained?

I currently use boost::state_chart in one of my projects. As the changelog [1] Shows the last activity in boost 1.46.0, is it still maintained or should i switch to…
schorsch_76
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Boost Statechart: Return to Previous State

I've got a state machine wherein if I enter a particular state, sometimes I need to have a regular transition to another state and other times I need to return to a previous state. For example, having states A B C, say that transition S moves state…
singhh23
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Unit testing with boost::statechart

We are using the boost statechart library and have troubles writing unit tests for the code. In our normal execution the state machine starts in ClosedState: struct BoostStateMachine : sc::state_machine We would…
FireAphis
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Boost statechart - pass event data to state constructor using triggering_event

I would like to be able to communicate the data from an event to a state that gets constructed as a result of a transition. From this post in 2009 and this one in 2010 the use of triggering_event() is suggested. However, I can't find an example…
ksl
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UML state charts: completion transitions

In the context of UML state charts with the run-to-completion model, how are "completion transitions" processed? The completion of a state inserts a "completion event" at the beginning of the event queue and the "completion transition" is thus only…
ARF
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Notification about state change in Boost Statechart

Is there a straightforward method of registering to state change in Boost Statechart? For the Digital Camera example, let's say I decide to add a GUI to the application. Is there a possibility to be notified about transition between states, other…
Alexandru Irimiea
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Boost.Statechart - issue with documented method for choice points

As per the example in the documentation I made the following code that fails to compile because custom_reaction<> does not seem to match the concept expected as the third template parameter to state<>. How do I really make choice points? (I also…
Edward Strange
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How to prevent boost::statetechart from terminating due to exception thrown

I have implemented a state machine that inherits boost::statechart. When I call fsm.process_event( some_event() ) which reaction is expected to throw exception it turns out that after I handle the exception with try-catch block my statemachine…
0xC0DEGURU
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Can't compile my state machine code

I'm trying to make a state machine DcuClientMachine, having two states - StandBy (the default one) and Operating. StandBy is just a simple state, while Operating is a nested one, having Parsing state as it's default. EvConnecting event supposes to…
fogbit
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boost::statechart: How to define two sub states of certain state, without specifying which one is default?

The following code fails to compile: namespace sc = boost::statechart; class Active; class FSM : public sc::state_machine< FSM, startup> { }; class ev_1 : public sc::event {}; class ev_2 : public sc::event {}; class Active : public…
0xC0DEGURU
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how to use boost in_state_reaction

I'm trying to use in_state_reaction. Oddly the react function for this doesn't seem to be executed after process_event () is called. I changed in_state_reaction to custom_reaction and it seems fine. Just want to know how do I make it work with…
robby bolos
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boost::statechart and non-const events

Is there a way to define boost::statechart::in_state_reactions allowing non-const events to be passed to reaction functions?
Martin
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