certificate-cache-v2.hpp

/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil -*- */
#ifndef NDN_CERTIFICATE_CACHE_V2_HPP
#define NDN_CERTIFICATE_CACHE_V2_HPP

#include <float.h>
#include <map>
#include "../../interest.hpp"
#include "certificate-v2.hpp"

namespace ndn {

class CertificateCacheV2 {
public:
  CertificateCacheV2(Milliseconds maxLifetimeMilliseconds = getDefaultLifetime());

  void
  insert(const CertificateV2& certificate);

  ptr_lib::shared_ptr<CertificateV2>
  find(const Name& certificatePrefix) const;

  ptr_lib::shared_ptr<CertificateV2>
  find(const Interest& interest) const;

  void
  deleteCertificate(const Name& certificateName);

  void
  clear()
  {
    certificatesByName_.clear();
    nextRefreshTime_ = DBL_MAX;
  }

  static Milliseconds
  getDefaultLifetime() { return 3600.0 * 1000; }

  void
  setNowOffsetMilliseconds_(Milliseconds nowOffsetMilliseconds)
  {
    nowOffsetMilliseconds_ = nowOffsetMilliseconds;
  }

private:
  class Entry {
  public:
    Entry
      (const ptr_lib::shared_ptr<CertificateV2>& certificate,
       MillisecondsSince1970 removalTime)
    : certificate_(certificate), removalTime_(removalTime)
    {}

    Entry()
    {
      removalTime_ = 0;
    }

    ptr_lib::shared_ptr<CertificateV2> certificate_;
    MillisecondsSince1970 removalTime_;
  };

  void
  refresh();

  // Disable the copy constructor and assignment operator.
  CertificateCacheV2(const CertificateCacheV2& other);
  CertificateCacheV2& operator=(const CertificateCacheV2& other);

  std::map<Name, Entry> certificatesByName_;
  MillisecondsSince1970 nextRefreshTime_;
  Milliseconds maxLifetimeMilliseconds_;
  Milliseconds nowOffsetMilliseconds_;
};

}

#endif