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--></style></head><body lang=EN-US link="#0563C1" vlink="#954F72"><div class=WordSection1><p class=MsoNormal>Hi Zeinab<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>NFD has a modular design.</p><p class=MsoNormal>The design intention for NFD ContentStore is: all admission policy and replacement policy can be implemented as a subclass of <a href="https://github.com/named-data-ndnSIM/NFD/blob/cb6e05f2dd5ce7dca199734e0b97ea7bfb5bcfa7/daemon/table/cs-policy.hpp">nfd::cs::Policy</a>.</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo2'><![if !supportLists]><span style='font-family:Symbol'><span style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]>First, create your own subclass of nfd::cs::Policy. You may copy from an existing policy if it’s similar, but don’t modify it.</p><p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo2'><![if !supportLists]><span style='font-family:Symbol'><span style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]>In cs.cpp, modify makeDefaultPolicy function to create your Policy subclass.</p><p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo2'><![if !supportLists]><span style='font-family:Symbol'><span style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]>All index used for admission policy and replacement policy should be kept within your Policy subclass. forwarder.cpp shouldn’t be modified.</p><p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo2'><![if !supportLists]><span style='font-family:Symbol'><span style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]>Typically, decision is in Policy::doAfterInsert function.</p><p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo2'><![if !supportLists]><span style='font-family:Symbol'><span style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]>Policy::doAfterInsert function may even evict the newly inserted entry immediately, if your admission policy decides that it shouldn’t be admitted.</p><p><o:p> </o:p></p><p>Yours, Junxiao</p><div style='mso-element:para-border-div;border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;border:none;padding:0in'><br><b>From: </b>Zeinab Rezaiefar<br><b>Sent: </b>Monday, November 16, 2015 02:25<br><b>To: </b>ndnsim@lists.cs.ucla.edu<br><b>Subject: </b>[ndnSIM] implementing new cache policy in ndnsim</p></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman",serif'><o:p> </o:p></span></p><p class=MsoNormal style='background:white'><span style='font-size:12.0pt;font-family:"Times New Roman",serif;color:black'>Hello everyone,</span><span style='font-size:12.0pt;font-family:"Times New Roman",serif;color:black'><o:p></o:p></span></p><div id="yui_3_16_0_1_1447658706268_4650"><p class=MsoNormal style='background:white'><span style='font-size:12.0pt;font-family:"Times New Roman",serif;color:black'>I would like to say that I want to implement my algorithm with modifying ndnsim. As I know three entities ( data packet, flag for showing unsolicited data and timestamp) are stored in cs . I want to save another entity for each content which identifies the probability that each content should be saved. Moreover, according to this index ( probability ) the content will be saved or dropped and I would like that this probability will be updated after receiving any packet instead of using lru policy. is there any persons who can guide me about bellow questions :<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1447658706268_4939"><p class=MsoNormal style='background:white'><span style='font-size:12.0pt;font-family:"Times New Roman",serif;color:black'>1) for adding another index I should modify onIncomingData function in forward.cpp ? <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1447658706268_5016"><p class=MsoNormal style='background:white'><span style='font-size:12.0pt;font-family:"Times New Roman",serif;color:black'>2) for decision according to the new index I just need to modify lru.policy.hpp ? ( how the packet can be ordered according this new index instead of using least recently used)<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1447658706268_5128"><p class=MsoNormal style='background:white'><span style='font-size:12.0pt;font-family:"Times New Roman",serif;color:black'>any help will be appreciated<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1447658706268_5129"><p class=MsoNormal style='background:white'><span style='font-size:12.0pt;font-family:"Times New Roman",serif;color:black'>thanks in advance<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1447658706268_5130"><p class=MsoNormal style='background:white'><span style='font-size:12.0pt;font-family:"Times New Roman",serif;color:black'>best regards <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1447658706268_5106"><p class=MsoNormal style='background:white'><span style='font-size:12.0pt;font-family:"Times New Roman",serif;color:black'> <o:p></o:p></span></p></div><p class=MsoNormal style='background:white'><span style='font-size:12.0pt;font-family:"Times New Roman",serif;color:black'> <o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>