conf: make ChronoSync's sync interest lifetime configurable

refs: #4490

Change-Id: Id3eabeed1049d1208ba49c47206f73f798f37a35
diff --git a/src/communication/sync-logic-handler.cpp b/src/communication/sync-logic-handler.cpp
index 6b392af..6257be5 100644
--- a/src/communication/sync-logic-handler.cpp
+++ b/src/communication/sync-logic-handler.cpp
@@ -53,7 +53,7 @@
 }
 
 void
-SyncLogicHandler::createSyncSocket(const ndn::Name& syncPrefix)
+SyncLogicHandler::createSyncSocket(const ndn::Name& syncPrefix, const ndn::time::milliseconds& syncInterestLifetime)
 {
   if (m_syncSocket != nullptr) {
     NLSR_LOG_WARN("Trying to create Sync socket, but Sync socket already exists");
@@ -72,7 +72,9 @@
   std::shared_ptr<ndn::Face> facePtr(&m_syncFace, NullDeleter<ndn::Face>());
 
   m_syncSocket = std::make_shared<chronosync::Socket>(m_syncPrefix, m_nameLsaUserPrefix, *facePtr,
-                                                      std::bind(&SyncLogicHandler::onChronoSyncUpdate, this, _1));
+                                                      std::bind(&SyncLogicHandler::onChronoSyncUpdate, this, _1),
+                                                      chronosync::Socket::DEFAULT_NAME, chronosync::Socket::DEFAULT_VALIDATOR,
+                                                      syncInterestLifetime);
 
   if (m_confParam.getHyperbolicState() == HYPERBOLIC_STATE_OFF) {
     m_syncSocket->addSyncNode(m_adjLsaUserPrefix);
diff --git a/src/communication/sync-logic-handler.hpp b/src/communication/sync-logic-handler.hpp
index 46bb18f..f4bd31a 100644
--- a/src/communication/sync-logic-handler.hpp
+++ b/src/communication/sync-logic-handler.hpp
@@ -22,6 +22,7 @@
 #ifndef NLSR_SYNC_LOGIC_HANDLER_HPP
 #define NLSR_SYNC_LOGIC_HANDLER_HPP
 
+#include "conf-parameter.hpp"
 #include "test-access-control.hpp"
 #include "signals.hpp"
 #include "lsa.hpp"
@@ -90,10 +91,13 @@
    *
    * In a typical situation this only needs to be called once, when NLSR starts.
    * \param syncPrefix The sync prefix you want this ChronoSync to use
+   * \param syncInterestLifetime ChronoSync sends a periodic sync interest every \p syncInterestLifetime / 2 ms
    * \sa Nlsr::initialize
    */
   void
-  createSyncSocket(const ndn::Name& syncPrefix);
+  createSyncSocket(const ndn::Name& syncPrefix,
+                   const ndn::time::milliseconds& syncInterestLifetime =
+                     ndn::time::milliseconds(SYNC_INTEREST_LIFETIME_DEFAULT));
 
 PUBLIC_WITH_TESTS_ELSE_PRIVATE:
   /*! \brief Simple function to glue Name components together