[ndnSIM] Setting a custom policy for Content Store
Alex Afanasyev
aa at CS.UCLA.EDU
Tue Nov 15 21:38:42 PST 2016
Hi John,
You have a small issue in your implementation of JPBPolicy. If you haven't, you need to define the default constructor and in the default constructor use ``Policy::Policy(const std::string&)`` to initialize the base class. You can see the example in other policies:
LruPolicy::LruPolicy()
: Policy(POLICY_NAME)
{
}
The reason is that each policy has to have a name, which is enforced by the deleted default constructor of the base class.
--
Alex
> On Nov 16, 2016, at 1:44 PM, John Baugh <jpbaugh at umich.edu> wrote:
>
> Greetings all,
>
> See the error(s) I'm getting below from my Google Drive:
> https://drive.google.com/open?id=1Ni2wc7mSecJR-1KseA_1k4oDKoXuJJrGNtwXl6sHnrA <https://drive.google.com/open?id=1Ni2wc7mSecJR-1KseA_1k4oDKoXuJJrGNtwXl6sHnrA>
>
> Here's the code:
> https://drive.google.com/open?id=0By9ufeKqmJYYOThERVMtOVo2STA <https://drive.google.com/open?id=0By9ufeKqmJYYOThERVMtOVo2STA>
>
> Thanks,
>
> John
>
> On Mon, Nov 14, 2016 at 3:02 AM, Alex Afanasyev <aa at cs.ucla.edu <mailto:aa at cs.ucla.edu>> wrote:
> Hi John,
>
> Can you post the exact error you're getting (if it is too long, you can use pastebin.com <http://pastebin.com/>). If you also can share the snippet that reproduces the problem, it would be much faster to debug the issue and suggest the solution.
>
> --
> Alex
>
>> On Nov 14, 2016, at 3:53 PM, John Baugh <jpbaugh at umich.edu <mailto:jpbaugh at umich.edu>> wrote:
>>
>> I am trying code like so:
>>
>> unique_ptr<nfd::cs::Policy> policy(new JPBPolicy());
>>
>> myContentStore.setPolicy(policy);
>>
>> I'm getting tons of errors. It doesn't like any of the conversions I'm trying to perform... It may be a misunderstanding of some of the techniques used with managed/smart pointers in terms of polymorphic references, but something's not working.
>>
>> I want to create a subclass of Policy in order to override functions such as doAfterInsert(iterator i);
>>
>> In my derived class (subclass), I did provide a body for all the pure virtual methods from the documentation of Policy.
>>
>> But I think the problem is the conversion. Is there some way to do this with say, static_cast ?
>>
>> Thanks,
>>
>> John
>
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