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<DIV>Hi, Alex</DIV>
<DIV>You are right, I didn't extend the helper (ndn::StackHelper) and use a new
instance of ObjectFactory to create an instance of CA class by name. Thanks a
lot!!!</DIV>
<DIV> </DIV>
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<DIV><SPAN>aaronishere</SPAN></DIV>
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<DIV><B>发件人：</B> <A href="mailto:alexander.afanasyev@ucla.edu">Alex
Afanasyev</A></DIV>
<DIV><B>发送时间：</B> 2013-02-17 11:41</DIV>
<DIV><B>收件人：</B> <A href="mailto:aaronishere@qq.com">aaronishere</A></DIV>
<DIV><B>抄送：</B> <A href="mailto:ndnsim@lists.cs.ucla.edu">ndnsim</A></DIV>
<DIV><B>主题：</B> Re: [ndnSIM] question for the function
Lookup</DIV></DIV></DIV>
<DIV>
<DIV class=FoxDiv20130217122156531947><BASE href="x-msg://2295/">
<DIV>Hi Aaron,</DIV>
<DIV><BR></DIV>
<DIV>How do you create your CA class? Did you extend the helper
(ndn::StackHelper) and use a new instance of ObjectFactory to create an instance
of CA class by name? And related question, did you assign a unique name in
GetTypeId () function of your CA class? Did you call AggregateObject
method in Install method of ndn::StackHelper class?</DIV>
<DIV><BR></DIV>
<DIV>I'm assuming that you're getting a segfault while calling Lookup. If
so, most likely your m_ca is simply not initialized. And most likely, this
could happen if you created an object, but didn't call AggregateObject
method (this way GetObject<CA> () would return 0).</DIV>
<DIV><BR></DIV>
<DIV>---</DIV>
<DIV>Alex</DIV><BR>
<DIV>
<DIV>On Feb 16, 2013, at 6:54 PM, aaronishere <<A
href="mailto:aaronishere@qq.com">aaronishere@qq.com</A>> wrote:</DIV><BR
class=Apple-interchange-newline>
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<DIV>Hi, Alex</DIV>
<DIV>In pit/fib.h, the function Lookup() is a pure virtual funtion and the
concrete one is defined in the fib-impl/pit-impl. I'm not sure how the Lookup
in the fib/pit jumps to the one in the fib-impl/pit-impl? I defined a
pointer m_ca in the forwardingstrategy like m_pit, but when executes
Ptr<ca::Entry>m_ca->Lookup(), it doesn't jump to the function Lookup
in the ca-impl. Thanks a lot!</DIV>
<DIV> </DIV>
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<DIV><SPAN>Aaron</SPAN></DIV></DIV></BLOCKQUOTE></DIV></DIV></DIV></BODY></HTML>