name-tree.hpp

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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
#ifndef NFD_DAEMON_TABLE_NAME_TREE_HPP
#define NFD_DAEMON_TABLE_NAME_TREE_HPP

#include "name-tree-iterator.hpp"

namespace nfd {
namespace name_tree {

class NameTree : noncopyable
{
public:
  explicit
  NameTree(size_t nBuckets = 1024);

public: // information
  size_t
  size() const
  {
    return m_ht.size();
  }

  size_t
  getNBuckets() const
  {
    return m_ht.getNBuckets();
  }

  template<typename ENTRY>
  Entry*
  getEntry(const ENTRY& tableEntry) const
  {
    return Entry::get(tableEntry);
  }

public: // mutation
  Entry&
  lookup(const Name& name);

  Entry&
  lookup(const fib::Entry& fibEntry);

  Entry&
  lookup(const pit::Entry& pitEntry);

  Entry&
  lookup(const measurements::Entry& measurementsEntry);

  Entry&
  lookup(const strategy_choice::Entry& strategyChoiceEntry);

  size_t
  eraseIfEmpty(Entry* entry, bool canEraseAncestors = true);

public: // matching
  Entry*
  findExactMatch(const Name& name) const;

  Entry*
  findLongestPrefixMatch(const Name& name,
                         const EntrySelector& entrySelector = AnyEntry()) const;

  Entry*
  findLongestPrefixMatch(const Entry& entry,
                         const EntrySelector& entrySelector = AnyEntry()) const;

  template<typename ENTRY>
  Entry*
  findLongestPrefixMatch(const ENTRY& tableEntry,
                         const EntrySelector& entrySelector = AnyEntry()) const;

  Entry*
  findLongestPrefixMatch(const pit::Entry& pitEntry,
                         const EntrySelector& entrySelector = AnyEntry()) const;

  Range
  findAllMatches(const Name& name,
                 const EntrySelector& entrySelector = AnyEntry()) const;

public: // enumeration
  typedef Iterator const_iterator;

  Range
  fullEnumerate(const EntrySelector& entrySelector = AnyEntry()) const;

  Range
  partialEnumerate(const Name& prefix,
                   const EntrySubTreeSelector& entrySubTreeSelector = AnyEntrySubTree()) const;

  const_iterator
  begin() const
  {
    return fullEnumerate().begin();
  }

  const_iterator
  end() const
  {
    return Iterator();
  }

private:
  Hashtable m_ht;

  friend class EnumerationImpl;
};

} // namespace name_tree

using name_tree::NameTree;

} // namespace nfd

#endif // NFD_DAEMON_TABLE_NAME_TREE_HPP