Use ndn::Buffer::data() instead of buf()

The latter is considered deprecated.

Change-Id: If92406ccedca391e3551b456491ebb47737f1bc1

src/diff-state-container.hpp

@@ -46,7 +46,7 @@ struct DigestPtrHash
   {
     BOOST_ASSERT(digest->size() > sizeof(std::size_t));
 
-    return *reinterpret_cast<const std::size_t*>(digest->buf());
+    return *reinterpret_cast<const std::size_t*>(digest->data());
   }
 };
 

src/leaf-container.hpp

@@ -49,7 +49,7 @@ struct SessionNameHash
 
     BOOST_ASSERT(buffer->size() > sizeof(std::size_t));
 
-    return *reinterpret_cast<const std::size_t*>(buffer->buf());
+    return *reinterpret_cast<const std::size_t*>(buffer->data());
   }
 };
 

src/logic.cpp

@@ -252,7 +252,7 @@ Logic::updateSeqNo(const SeqNo& seqNo, const Name& updatePrefix)
       _LOG_DEBUG_ID("updateSeqNo: not in Reset ");
       ConstBufferPtr previousRoot = m_state.getRootDigest();
       {
-        std::string hash = ndn::toHex(previousRoot->buf(), previousRoot->size(), false);
+        std::string hash = ndn::toHex(previousRoot->data(), previousRoot->size(), false);
         _LOG_DEBUG_ID("Hash: " << hash);
       }
 
@@ -691,7 +691,7 @@ Logic::cancelReset()
 void
 Logic::printDigest(ConstBufferPtr digest)
 {
-  std::string hash = ndn::toHex(digest->buf(), digest->size(), false);
+  std::string hash = ndn::toHex(digest->data(), digest->size(), false);
   _LOG_DEBUG_ID("Hash: " << hash);
 }
 

src/state.cpp

@@ -26,9 +26,7 @@
 
 namespace chronosync {
 
-State::~State()
-{
-}
+State::~State() = default;
 
 /**
  * @brief Add or update leaf to the sync tree
@@ -68,7 +66,7 @@ State::getRootDigest() const
   BOOST_FOREACH (ConstLeafPtr leaf, m_leaves.get<ordered>())
     {
       BOOST_ASSERT(leaf != 0);
-      m_digest.update(leaf->getDigest()->buf(), leaf->getDigest()->size());
+      m_digest.update(leaf->getDigest()->data(), leaf->getDigest()->size());
     }
 
   return m_digest.computeDigest();

tests/unit-tests/test-leaf.cpp

@@ -56,7 +56,7 @@ BOOST_AUTO_TEST_CASE(LeafDigest)
   BOOST_CHECK_NO_THROW(leaf.getDigest());
 
   ndn::ConstBufferPtr digest = leaf.getDigest();
-  BOOST_CHECK_EQUAL(result, ndn::toHex(digest->buf(), digest->size(), false));
+  BOOST_CHECK_EQUAL(result, ndn::toHex(digest->data(), digest->size(), false));
 }
 
 BOOST_AUTO_TEST_CASE(Container)