Re: [Boost-users] [statechart] Using fast_pool_allocator along withstate_machine

From: Andreas Huber (ahd6974-spamboostorgtrap_at_[hidden])
Date: 2008-04-19 11:28:40

Hi

> If I specified boost::fast_pool_allocator<int> does the library take care 
> of somehow doing a rebind and allocating the right amount of memory for 
> the states ?

Yes, please see:

<http://www.boost.org/doc/libs/1_35_0/libs/statechart/doc/faq.html#HardRealtime>
<http://www.boost.org/doc/libs/1_35_0/libs/statechart/doc/reference.html#ClassTemplatestate_machine>, 
Allocator parameter
<http://www.boost.org/doc/libs/1_35_0/libs/statechart/doc/reference.html#ClassTemplateevent>, 
Allocator parameter

[snip]
> struct Enabled;
> struct Machine : sc::state_machine< Machine,
>                     Enabled,
>                     boost::fast_pool_allocator< int > > /* ??? is this 
> right ? */
> {
>    Machine();
>    ~Machine() {
>        terminate();
>    }
>   int ContextAssociatedwithStateMachine;
> };

Looks good to me. boost::fast_pool_allocator< int > is used in the 
performance example here:

<http://www.boost.org/doc/libs/1_35_0/libs/statechart/example/Performance/Performance.cpp>

HTH & Regards,

-- 
Andreas Huber
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